Increase version to 0.7.0 (#107)

This PR improves some fill performance issues I found with various Lottie animations.
I think the real issue comes down to the render performance of Path.addPath(). The performance issue happens in the Render thread and seems directly related to how large the animation is on-screen. Flutter might be caching pre-rendered textures and running out of memory.

I've changed how Path.addPath() is called and how the path is rendered for fill_content.dart and gradient_fill_content.dart.

Just as an example, the example/assets/Tests/bm.json animation gets ~60 fps with this fix, compared to 34-52 fps with the lottie-flutter 0.6.0 release. (This is on a Pixel 3 XL)

There are a couple of other changes:

- I fixed a bug with the casing of "weather" in pubspec.yaml. Without this fix, the examples don't build on Ubuntu Linux.
The debugging class MeanCalculator wasn't initializing its fields, causing a null pointer exception when debugging.
- I added antiAliasingSuggested to LottieDrawable to allow fill paints to be anti-aliased. It is off by default. It also provides some minor performance improvements without any noticeable loss in quality. It is only applied to fills right now.
- I added PathFactory to create Paths rather than just new-ing them. path_factory.dart allows you to switch out the normal Path creation with a debug logging implementation so you can see all of the Path calls that are performed during a frame. Just create a DebugPath in the factory rather than Path.

.github/workflows/analyze-and-test.yaml

@@ -10,8 +10,8 @@ jobs:
     name: Flutter analyze
     strategy:
       matrix:
-        flutter: ['stable', 'dev']
-    runs-on: ubuntu-latest
+        flutter: ['stable']
+    runs-on: macos-latest
     steps:
       - uses: actions/checkout@v2
       - uses: subosito/flutter-action@v1
@@ -19,12 +19,16 @@ jobs:
           channel: ${{ matrix.flutter }}
       - run: flutter doctor
       - run: flutter --version
+      - run: flutter pub get
+        working-directory: example
       - run: flutter analyze
       - run: flutter test test # https://github.com/flutter/flutter/issues/20907
+      - run: flutter test test
+        working-directory: example
       - run: flutter pub run tool/prepare_submit.dart
       - name: "check for uncommitted changes"
         run: |
-          git diff --exit-code --stat -- . \
+          git diff --exit-code --stat -- . ':(exclude)*pubspec.lock' \
           || (echo "##[error] found changed files after build. please run 'dart tool/prepare_submit.dart'" \
                    "and check in all changes" \
               && exit 1)

.gitignore

@@ -4,6 +4,8 @@ _*
 !.gitignore
 !.github
 
+**/failures/*.png
+
 *.iml
 **/doc/api/
 build/

CHANGELOG.md

@@ -1,32 +1,99 @@
-## [0.2.2] - 2020-02-21
+## [0.7.0]
+- Performance improvement for complex animations.
+
+## [0.6.0]
+- Runs the animation at the frame rate specified in the json file (ie. An animation encoded with a 20 FPS will only
+  be paint 20 times per seconds even though the AnimationController will invalidate the widget 60 times per seconds).  
+  A new property `frameRate` allows to opt-out this behavior and have the widget to repaint at the device frame rate 
+   (`FrameRate.max`).
+- Automatically add a `RepaintBoundary` around the widget. Since `Lottie` animations are generally complex to paint, a
+   `RepaintBoundary` will separate the animation with the rest of the app and improve performance. A new property `addRepaintBoundary`
+   allows to opt-out this behavior.
+- Fix a bug where we would call `markNeedPaint` when the animation was not changing. This removes unnecessary paints in
+  animations with static periods.
+
+## [0.5.1]
+- Remove direct dependencies on dart:io to support Flutter Web
+
+## [0.5.0]
+- Support loading animation from network in a web app
+- Fix a couple of bugs with the web dev compiler
+
+## [0.4.1]
+- Support color value stored as RGB, not RGBA 
+
+## [0.4.0+1]
+- Support latest version of the `characters` package
+
+## [0.4.0]
+- Disable "Merge paths" by default and provide an option to enable them.  
+This is the same behavior as in Lottie-android.  
+Merge paths currently don't work if the the operand shape is entirely contained within the
+first shape. If you need to cut out one shape from another shape, use an even-odd fill type
+instead of using merge paths.
+
+Merge paths can be enabled with:
+```dart
+Lottie.asset('file.json', options: LottieOptions(enableMergePaths: true));
+```
+
+
+## [0.3.6]
+- Export the `Marker` class
+
+## [0.3.5]
+- Fix a bug with a wrongly clipped rectangle. 
+
+## [0.3.4]
+- Fix a bug with dashed path
+
+## [0.3.3]
+- Fix a bug with rounded rectangle shape
+
+## [0.3.2]
+- Fix a bug with "repeater" content
+
+## [0.3.1]
+- Support dashed path
+
+## [0.3.0+1]
+- Specify a version range for the dependency on `characters`.
+
+## [0.3.0]
+- Add `LottieDelegates` a group of options to customize the lottie animation at runtime.
+  ie: Dynamically modify color, position, size, text... of every elements of the animation.
+- Correctly display Linear and Radial Gradients
+- Integrate latest changes from Lottie-android
+
+## [0.2.2]
 - Add a [repeat] parameter to specify if the automatic animation should loop.
 - Add the [animate], [reverse], [repeat] properties on `LottieBuilder`
 - Fix bug with `onLoaded` callback when the `LottieProvider` is changed
 
-## [0.2.1] - 2020-02-11
+## [0.2.1]
 - Fix a big bug in the path transformation code. A lot more animations look correct now.
 
-## [0.2.0+1] - 2020-02-04
+## [0.2.0+1]
 - Improve readme
 - (internal) Add golden tests
 
-## [0.2.0] - 2020-02-02
+## [0.2.0]
 - Support loading the animation and its images from a zip file
 - Breaking: `LottieComposition.fromBytes` and `fromByteData` are now asynchronous.
 
-## [0.1.4] - 2020-02-02
+## [0.1.4]
 - Support images in animation
 - Basic support for text in animation (work in progress)
 
-## [0.1.3] - 2020-02-01
+## [0.1.3]
 - Support Polystar shape
 - Reorganize examples.
 
-## [0.1.2] - 2020-01-31
+## [0.1.2]
 - Implement `Lottie.network`, `Lottie.file` and `Lottie.memory`
 
-## [0.1.1] - 2020-01-31
+## [0.1.1]
 - Fix analysis lints
 
-## [0.1.0] - 2020-01-31
+## [0.1.0]
 - Initial conversion of [lottie-android](https://github.com/airbnb/lottie-android) to Dart/Flutter

LICENSE

@@ -1 +1,21 @@
-TODO: Add your license here.
+MIT License
+
+Copyright (c) [year] [fullname]
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -3,12 +3,12 @@
 [![](https://github.com/xvrh/lottie-flutter/workflows/Lottie%20Flutter/badge.svg?branch=master)](https://github.com/xvrh/lottie-flutter)
 [![pub package](https://img.shields.io/pub/v/lottie.svg)](https://pub.dev/packages/lottie)
 
-Lottie is a mobile library for Android and iOS that parses [Adobe After Effects](http://www.adobe.com/products/aftereffects.html) 
-animations exported as json with [Bodymovin](https://github.com/bodymovin/bodymovin) and renders them natively on mobile!
+Lottie is a mobile library for Android and iOS that parses [Adobe After Effects](https://www.adobe.com/products/aftereffects.html) 
+animations exported as json with [Bodymovin](https://github.com/airbnb/lottie-web) and renders them natively on mobile!
 
 This repository is a unofficial conversion of the [Lottie-android](https://github.com/airbnb/lottie-android) library in pure Dart. 
 
-It works on Android, iOS and macOS. ([Web support is coming](https://github.com/xvrh/lottie-flutter#flutter-web))
+It works on Android, iOS and macOS and web.
 
 ## Usage
 
@@ -37,7 +37,7 @@ class MyApp extends StatelessWidget {
                 'https://raw.githubusercontent.com/xvrh/lottie-flutter/master/example/assets/Mobilo/A.json'),
 
             // Load an animation and its images from a zip file
-            Lottie.asset('assets/lottiesfiles/angel.zip'),
+            Lottie.asset('assets/lottiefiles/angel.zip'),
           ],
         ),
       ),
@@ -46,15 +46,11 @@ class MyApp extends StatelessWidget {
 }
 ```
 
-To load an animation from the assets folder, we need to add an `assets` section in the `pubspec.yaml`:
-```yaml
-flutter:
-  assets:
-    - assets/
-```
-
 ### Specify a custom `AnimationController`
-This example shows how to have full control over the animation by providing your own `AnimationController`.
+This example shows how to take full control over the animation by providing your own `AnimationController`.
+
+With a custom `AnimationController` you have a rich API to play the animation in various ways: start and stop the animation when you want,
+ play forward or backward, loop between specifics points...  
 
 ```dart
 import 'package:flutter/material.dart';
@@ -89,8 +85,8 @@ class _MyAppState extends State<MyApp> with TickerProviderStateMixin {
       home: Scaffold(
         body: ListView(
           children: [
-            Lottie.network(
-              'https://raw.githubusercontent.com/xvrh/lottie-flutter/master/sample_app/assets/Mobilo/C.json',
+            Lottie.asset(
+              'assets/LottieLogo1.json',
               controller: _controller,
               onLoaded: (composition) {
                 // Configure the AnimationController with the duration of the
@@ -108,6 +104,8 @@ class _MyAppState extends State<MyApp> with TickerProviderStateMixin {
 }
 ```
 
+[See this file](https://github.com/xvrh/lottie-flutter/blob/master/example/lib/examples/animation_full_control.dart) for a more comprehensive example.
+
 ### Control the size of the Widget
 The `Lottie` widget takes the same arguments and have the same behavior as the `Image` widget
 in term of controlling its size.
@@ -124,13 +122,14 @@ Lottie.asset(
 animation.
 
 ### Custom loading
-This example shows how to load and parse a Lottie composition from a json file.  
-
 The `Lottie` widget has several convenient constructors (`Lottie.asset`, `Lottie.network`, `Lottie.memory`) to load, parse and
 cache automatically the json file.
 
 Sometime you may prefer to have full control over the loading of the file. Use `LottieComposition.fromByteData` to 
 parse the file from a list of bytes.
+
+This example shows how to load and parse a Lottie composition from a json file.  
+
 ```dart
 class MyWidget extends StatefulWidget {
   @override
@@ -189,19 +188,20 @@ class CustomDrawer extends StatelessWidget {
 }
 
 class _Painter extends CustomPainter {
-  final LottieComposition composition;
+  final LottieDrawable drawable;
 
-  _Painter(this.composition);
+  _Painter(LottieComposition composition)
+      : drawable = LottieDrawable(composition);
 
   @override
   void paint(Canvas canvas, Size size) {
-    var drawable = LottieDrawable(composition);
-
     var frameCount = 40;
     var columns = 10;
     for (var i = 0; i < frameCount; i++) {
       var destRect = Offset(i % columns * 50.0, i ~/ 10 * 80.0) & (size / 5);
-      drawable.draw(canvas, destRect, progress: i / frameCount);
+      drawable
+        ..setProgress(i / frameCount)
+        ..draw(canvas, destRect);
     }
   }
 
@@ -212,21 +212,47 @@ class _Painter extends CustomPainter {
 }
 ````
 
-## Limitations
-This is a new library so usability, documentation and performance are still work in progress.
+### Modify properties at runtime
+This example shows how to modify some properties of the animation at runtime. Here we change the text,
+the color, the opacity and the position of some layers.
+For each `ValueDelegate` we can either provide a static `value` or a `callback` to compute a value for a each frame.
 
-The following features are not yet implemented:
-- Dash path effects
-- Transforms on gradients (stroke and fills)
-- Expose `Value callback` to modify dynamically some properties of the animation
-- Text in animations has very basic support (unoptimized and buggy) 
+````dart
+class _Animation extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    return Lottie.asset(
+      'assets/Tests/Shapes.json',
+      delegates: LottieDelegates(
+        text: (initialText) => '**$initialText**',
+        values: [
+          ValueDelegate.color(
+            const ['Shape Layer 1', 'Rectangle', 'Fill 1'],
+            value: Colors.red,
+          ),
+          ValueDelegate.opacity(
+            const ['Shape Layer 1', 'Rectangle'],
+            callback: (frameInfo) => (frameInfo.overallProgress * 100).round(),
+          ),
+          ValueDelegate.position(
+            const ['Shape Layer 1', 'Rectangle', '**'],
+            relative: Offset(100, 200),
+          ),
+        ],
+      ),
+    );
+  }
+}
+````
+
+## Limitations
+Only the [supported features of Lottie Android](https://airbnb.io/lottie/#/supported-features)
+are supported in this port.
 
 ## Flutter Web
 Run the app with `flutter run -d Chrome --dart-define=FLUTTER_WEB_USE_SKIA=true --release`
 
-The performance are not great and some features are missing.
-
 See a preview here: https://xvrh.github.io/lottie-flutter/index.html
 
-## Complete example
-See the Sample app (in the `example` folder) for a complete example of the various possibilities.
+## More examples
+See the `example` folder for more code samples of the various possibilities.

README.template.md

@@ -3,12 +3,12 @@
 [![](https://github.com/xvrh/lottie-flutter/workflows/Lottie%20Flutter/badge.svg?branch=master)](https://github.com/xvrh/lottie-flutter)
 [![pub package](https://img.shields.io/pub/v/lottie.svg)](https://pub.dev/packages/lottie)
 
-Lottie is a mobile library for Android and iOS that parses [Adobe After Effects](http://www.adobe.com/products/aftereffects.html) 
-animations exported as json with [Bodymovin](https://github.com/bodymovin/bodymovin) and renders them natively on mobile!
+Lottie is a mobile library for Android and iOS that parses [Adobe After Effects](https://www.adobe.com/products/aftereffects.html) 
+animations exported as json with [Bodymovin](https://github.com/airbnb/lottie-web) and renders them natively on mobile!
 
 This repository is a unofficial conversion of the [Lottie-android](https://github.com/airbnb/lottie-android) library in pure Dart. 
 
-It works on Android, iOS and macOS. ([Web support is coming](https://github.com/xvrh/lottie-flutter#flutter-web))
+It works on Android, iOS and macOS and web.
 
 ## Usage
 
@@ -17,23 +17,21 @@ This example shows how to display a Lottie animation in the simplest way.
 The `Lottie` widget will load the json file and run the animation indefinitely.
 
 ```dart
-import 'example/lib/examples/main.dart';
-```
-
-To load an animation from the assets folder, we need to add an `assets` section in the `pubspec.yaml`:
-```yaml
-flutter:
-  assets:
-    - assets/
+import 'example/lib/main.dart';
 ```
 
 ### Specify a custom `AnimationController`
-This example shows how to have full control over the animation by providing your own `AnimationController`.
+This example shows how to take full control over the animation by providing your own `AnimationController`.
+
+With a custom `AnimationController` you have a rich API to play the animation in various ways: start and stop the animation when you want,
+ play forward or backward, loop between specifics points...  
 
 ```dart
 import 'example/lib/examples/animation_controller.dart';
 ```
 
+[See this file](https://github.com/xvrh/lottie-flutter/blob/master/example/lib/examples/animation_full_control.dart) for a more comprehensive example.
+
 ### Control the size of the Widget
 The `Lottie` widget takes the same arguments and have the same behavior as the `Image` widget
 in term of controlling its size.
@@ -50,13 +48,14 @@ Lottie.asset(
 animation.
 
 ### Custom loading
-This example shows how to load and parse a Lottie composition from a json file.  
-
 The `Lottie` widget has several convenient constructors (`Lottie.asset`, `Lottie.network`, `Lottie.memory`) to load, parse and
 cache automatically the json file.
 
 Sometime you may prefer to have full control over the loading of the file. Use `LottieComposition.fromByteData` to 
 parse the file from a list of bytes.
+
+This example shows how to load and parse a Lottie composition from a json file.  
+
 ```dart
 import 'example/lib/examples/custom_load.dart#example';
 ```
@@ -69,21 +68,23 @@ a specific position and size.
 import 'example/lib/examples/custom_draw.dart#example';
 ````
 
-## Limitations
-This is a new library so usability, documentation and performance are still work in progress.
+### Modify properties at runtime
+This example shows how to modify some properties of the animation at runtime. Here we change the text,
+the color, the opacity and the position of some layers.
+For each `ValueDelegate` we can either provide a static `value` or a `callback` to compute a value for a each frame.
 
-The following features are not yet implemented:
-- Dash path effects
-- Transforms on gradients (stroke and fills)
-- Expose `Value callback` to modify dynamically some properties of the animation
-- Text in animations has very basic support (unoptimized and buggy) 
+````dart
+import 'example/lib/examples/simple_dynamic_properties.dart#example';
+````
+
+## Limitations
+Only the [supported features of Lottie Android](https://airbnb.io/lottie/#/supported-features)
+are supported in this port.
 
 ## Flutter Web
 Run the app with `flutter run -d Chrome --dart-define=FLUTTER_WEB_USE_SKIA=true --release`
 
-The performance are not great and some features are missing.
-
 See a preview here: https://xvrh.github.io/lottie-flutter/index.html
 
-## Complete example
-See the Sample app (in the `example` folder) for a complete example of the various possibilities.
+## More examples
+See the `example` folder for more code samples of the various possibilities.

analysis_options.yaml

@@ -3,6 +3,7 @@ analyzer:
   errors:
   strong-mode:
     implicit-casts: false
+    implicit-dynamic: false
 linter:
   rules:
     avoid_renaming_method_parameters: true

example/assets/Tests/TelegramAlphaCompat.json

@@ -0,0 +1,185 @@
+{
+  "v": "5.5.7",
+  "meta": {
+    "g": "LottieFiles AE 0.1.14",
+    "a": "",
+    "k": "",
+    "d": "",
+    "tc": ""
+  },
+  "fr": 60,
+  "ip": 0,
+  "op": 180,
+  "w": 300,
+  "h": 300,
+  "nm": " Square",
+  "ddd": 0,
+  "assets": [],
+  "layers": [
+    {
+      "ddd": 0,
+      "ind": 1,
+      "ty": 4,
+      "nm": "Shape Layer 1",
+      "sr": 1,
+      "ks": {
+        "o": {
+          "a": 0,
+          "k": 100,
+          "ix": 11
+        },
+        "r": {
+          "a": 0,
+          "k": 0,
+          "ix": 10
+        },
+        "p": {
+          "a": 0,
+          "k": [
+            150,
+            150,
+            0
+          ],
+          "ix": 2
+        },
+        "a": {
+          "a": 0,
+          "k": [
+            0,
+            0,
+            0
+          ],
+          "ix": 1
+        },
+        "s": {
+          "a": 0,
+          "k": [
+            100,
+            100,
+            100
+          ],
+          "ix": 6
+        }
+      },
+      "ao": 0,
+      "shapes": [
+        {
+          "ty": "gr",
+          "it": [
+            {
+              "ty": "rc",
+              "d": 1,
+              "s": {
+                "a": 0,
+                "k": [
+                  182.992,
+                  182.992
+                ],
+                "ix": 2
+              },
+              "p": {
+                "a": 0,
+                "k": [
+                  0,
+                  0
+                ],
+                "ix": 3
+              },
+              "r": {
+                "a": 0,
+                "k": 0,
+                "ix": 4
+              },
+              "nm": "Rectangle Path 1",
+              "mn": "ADBE Vector Shape - Rect",
+              "hd": false
+            },
+            {
+              "ty": "fl",
+              "c": {
+                "a": 0,
+                "k": [
+                  1,
+                  0,
+                  0,
+                  255
+                ],
+                "ix": 4
+              },
+              "o": {
+                "a": 0,
+                "k": 100,
+                "ix": 5
+              },
+              "r": 1,
+              "bm": 0,
+              "nm": "Fill 1",
+              "mn": "ADBE Vector Graphic - Fill",
+              "hd": false
+            },
+            {
+              "ty": "tr",
+              "p": {
+                "a": 0,
+                "k": [
+                  -8.504,
+                  1.496
+                ],
+                "ix": 2
+              },
+              "a": {
+                "a": 0,
+                "k": [
+                  0,
+                  0
+                ],
+                "ix": 1
+              },
+              "s": {
+                "a": 0,
+                "k": [
+                  100,
+                  100
+                ],
+                "ix": 3
+              },
+              "r": {
+                "a": 0,
+                "k": 0,
+                "ix": 6
+              },
+              "o": {
+                "a": 0,
+                "k": 100,
+                "ix": 7
+              },
+              "sk": {
+                "a": 0,
+                "k": 0,
+                "ix": 4
+              },
+              "sa": {
+                "a": 0,
+                "k": 0,
+                "ix": 5
+              },
+              "nm": "Transform"
+            }
+          ],
+          "nm": "Rectangle 1",
+          "np": 2,
+          "cix": 2,
+          "bm": 0,
+          "ix": 1,
+          "mn": "ADBE Vector Group",
+          "hd": false
+        }
+      ],
+      "ip": 0,
+      "op": 180,
+      "st": 0,
+      "bm": 0
+    }
+  ],
+  "markers": []
+}

example/assets/example_with_images/data.json

@@ -0,0 +1,833 @@
+{
+  "v": "5.6.9",
+  "fr": 25,
+  "ip": 0,
+  "op": 75,
+  "w": 1200,
+  "h": 1200,
+  "nm": "Character-side v1",
+  "ddd": 0,
+  "assets": [
+    {
+      "id": "image_0",
+      "w": 1200,
+      "h": 1200,
+      "u": "images/",
+      "p": "img_0.png",
+      "e": 0
+    },
+    {
+      "id": "image_1",
+      "w": 1200,
+      "h": 1200,
+      "u": "images/",
+      "p": "img_1.png",
+      "e": 0
+    },
+    {
+      "id": "image_2",
+      "w": 1200,
+      "h": 1200,
+      "u": "images/",
+      "p": "img_2.png",
+      "e": 0
+    },
+    {
+      "id": "image_3",
+      "w": 1200,
+      "h": 1200,
+      "u": "images/",
+      "p": "img_3.png",
+      "e": 0
+    },
+    {
+      "id": "image_4",
+      "w": 1200,
+      "h": 1200,
+      "u": "images/",
+      "p": "img_4.png",
+      "e": 0
+    },
+    {
+      "id": "image_5",
+      "w": 1200,
+      "h": 1200,
+      "u": "images/",
+      "p": "img_5.png",
+      "e": 0
+    },
+    {
+      "id": "image_6",
+      "w": 1200,
+      "h": 1200,
+      "u": "images/",
+      "p": "img_6.png",
+      "e": 0
+    },
+    {
+      "id": "image_7",
+      "w": 1200,
+      "h": 1200,
+      "u": "images/",
+      "p": "img_7.png",
+      "e": 0
+    },
+    {
+      "id": "image_8",
+      "w": 1200,
+      "h": 1200,
+      "u": "images/",
+      "p": "img_8.png",
+      "e": 0
+    },
+    {
+      "id": "image_9",
+      "w": 1200,
+      "h": 1200,
+      "u": "images/",
+      "p": "img_9.png",
+      "e": 0
+    }
+  ],
+  "layers": [
+    {
+      "ddd": 0,
+      "ind": 2,
+      "ty": 2,
+      "nm": "F ARM Up",
+      "parent": 8,
+      "refId": "image_0",
+      "sr": 1,
+      "ks": {
+        "o": {
+          "a": 0,
+          "k": 100,
+          "ix": 11
+        },
+        "r": {
+          "a": 1,
+          "k": [
+            {
+              "i": {
+                "x": [
+                  0.333
+                ],
+                "y": [
+                  1
+                ]
+              },
+              "o": {
+                "x": [
+                  0.667
+                ],
+                "y": [
+                  0
+                ]
+              },
+              "t": 0,
+              "s": [
+                0
+              ]
+            },
+            {
+              "i": {
+                "x": [
+                  0.333
+                ],
+                "y": [
+                  1
+                ]
+              },
+              "o": {
+                "x": [
+                  0.667
+                ],
+                "y": [
+                  0
+                ]
+              },
+              "t": 25,
+              "s": [
+                67
+              ]
+            },
+            {
+              "t": 50,
+              "s": [
+                0
+              ]
+            }
+          ],
+          "ix": 10
+        },
+        "p": {
+          "a": 0,
+          "k": [
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+            296.734,
+            0
+          ],
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+        },
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+            0
+          ],
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+        },
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+            100,
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+            100
+          ],
+          "ix": 6
+        }
+      },
+      "ao": 0,
+      "ip": 0,
+      "op": 250,
+      "st": 0,
+      "bm": 0
+    },
+    {
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+      "ty": 2,
+      "nm": "F ARM Low",
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+      "refId": "image_1",
+      "sr": 1,
+      "ks": {
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+        },
+        "r": {
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+                  0.333
+                ],
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+                  1
+                ]
+              },
+              "o": {
+                "x": [
+                  0.667
+                ],
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+                  0
+                ]
+              },
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+                43
+              ]
+            },
+            {
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+                  0.333
+                ],
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+                  1
+                ]
+              },
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+                "x": [
+                  0.667
+                ],
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+                  0
+                ]
+              },
+              "t": 25,
+              "s": [
+                0
+              ]
+            },
+            {
+              "t": 50,
+              "s": [
+                43
+              ]
+            }
+          ],
+          "ix": 10
+        },
+        "p": {
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+            0
+          ],
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+        },
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+            439.113,
+            0
+          ],
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+        },
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+            100,
+            100,
+            100
+          ],
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+        }
+      },
+      "ao": 0,
+      "ip": 0,
+      "op": 250,
+      "st": 0,
+      "bm": 0
+    },
+    {
+      "ddd": 0,
+      "ind": 4,
+      "ty": 2,
+      "nm": "F Hand",
+      "parent": 3,
+      "refId": "image_2",
+      "sr": 1,
+      "ks": {
+        "o": {
+          "a": 0,
+          "k": 100,
+          "ix": 11
+        },
+        "r": {
+          "a": 1,
+          "k": [
+            {
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+                "x": [
+                  0.333
+                ],
+                "y": [
+                  1
+                ]
+              },
+              "o": {
+                "x": [
+                  0.667
+                ],
+                "y": [
+                  0
+                ]
+              },
+              "t": 0,
+              "s": [
+                41
+              ]
+            },
+            {
+              "i": {
+                "x": [
+                  0.333
+                ],
+                "y": [
+                  1
+                ]
+              },
+              "o": {
+                "x": [
+                  0.667
+                ],
+                "y": [
+                  0
+                ]
+              },
+              "t": 25,
+              "s": [
+                0
+              ]
+            },
+            {
+              "t": 50,
+              "s": [
+                41
+              ]
+            }
+          ],
+          "ix": 10
+        },
+        "p": {
+          "a": 0,
+          "k": [
+            623.019,
+            584.501,
+            0
+          ],
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+        },
+        "a": {
+          "a": 0,
+          "k": [
+            623.019,
+            584.501,
+            0
+          ],
+          "ix": 1
+        },
+        "s": {
+          "a": 0,
+          "k": [
+            100,
+            100,
+            100
+          ],
+          "ix": 6
+        }
+      },
+      "ao": 0,
+      "ip": 0,
+      "op": 250,
+      "st": 0,
+      "bm": 0
+    },
+    {
+      "ddd": 0,
+      "ind": 5,
+      "ty": 2,
+      "nm": "F LEG Up",
+      "refId": "image_3",
+      "sr": 1,
+      "ks": {
+        "o": {
+          "a": 0,
+          "k": 100,
+          "ix": 11
+        },
+        "r": {
+          "a": 0,
+          "k": 90,
+          "ix": 10
+        },
+        "p": {
+          "a": 0,
+          "k": [
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+            589.662,
+            0
+          ],
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+        },
+        "a": {
+          "a": 0,
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+            604.854,
+            589.662,
+            0
+          ],
+          "ix": 1
+        },
+        "s": {
+          "a": 0,
+          "k": [
+            100,
+            100,
+            100
+          ],
+          "ix": 6
+        }
+      },
+      "ao": 0,
+      "ip": 0,
+      "op": 250,
+      "st": 0,
+      "bm": 0
+    },
+    {
+      "ddd": 0,
+      "ind": 6,
+      "ty": 2,
+      "nm": "F LEG Low",
+      "parent": 5,
+      "refId": "image_4",
+      "sr": 1,
+      "ks": {
+        "o": {
+          "a": 0,
+          "k": 100,
+          "ix": 11
+        },
+        "r": {
+          "a": 0,
+          "k": -90,
+          "ix": 10
+        },
+        "p": {
+          "a": 0,
+          "k": [
+            608.016,
+            829.202,
+            0
+          ],
+          "ix": 2
+        },
+        "a": {
+          "a": 0,
+          "k": [
+            608.016,
+            829.202,
+            0
+          ],
+          "ix": 1
+        },
+        "s": {
+          "a": 0,
+          "k": [
+            100,
+            100,
+            100
+          ],
+          "ix": 6
+        }
+      },
+      "ao": 0,
+      "ip": 0,
+      "op": 250,
+      "st": 0,
+      "bm": 0
+    },
+    {
+      "ddd": 0,
+      "ind": 7,
+      "ty": 2,
+      "nm": "F Foot",
+      "parent": 6,
+      "refId": "image_5",
+      "sr": 1,
+      "ks": {
+        "o": {
+          "a": 0,
+          "k": 100,
+          "ix": 11
+        },
+        "r": {
+          "a": 0,
+          "k": 0,
+          "ix": 10
+        },
+        "p": {
+          "a": 0,
+          "k": [
+            608.863,
+            1058.742,
+            0
+          ],
+          "ix": 2
+        },
+        "a": {
+          "a": 0,
+          "k": [
+            608.863,
+            1058.742,
+            0
+          ],
+          "ix": 1
+        },
+        "s": {
+          "a": 0,
+          "k": [
+            100,
+            100,
+            100
+          ],
+          "ix": 6
+        }
+      },
+      "ao": 0,
+      "ip": 0,
+      "op": 250,
+      "st": 0,
+      "bm": 0
+    },
+    {
+      "ddd": 0,
+      "ind": 8,
+      "ty": 2,
+      "nm": "Body",
+      "parent": 11,
+      "refId": "image_6",
+      "sr": 1,
+      "ks": {
+        "o": {
+          "a": 0,
+          "k": 100,
+          "ix": 11
+        },
+        "r": {
+          "a": 0,
+          "k": 0,
+          "ix": 10
+        },
+        "p": {
+          "a": 0,
+          "k": [
+            605.434,
+            468.468,
+            0
+          ],
+          "ix": 2
+        },
+        "a": {
+          "a": 0,
+          "k": [
+            605.434,
+            468.468,
+            0
+          ],
+          "ix": 1
+        },
+        "s": {
+          "a": 0,
+          "k": [
+            100,
+            100,
+            100
+          ],
+          "ix": 6
+        }
+      },
+      "ao": 0,
+      "ip": 0,
+      "op": 250,
+      "st": 0,
+      "bm": 0
+    },
+    {
+      "ddd": 0,
+      "ind": 9,
+      "ty": 2,
+      "nm": "Head",
+      "parent": 8,
+      "refId": "image_7",
+      "sr": 1,
+      "ks": {
+        "o": {
+          "a": 0,
+          "k": 100,
+          "ix": 11
+        },
+        "r": {
+          "a": 0,
+          "k": 0,
+          "ix": 10
+        },
+        "p": {
+          "a": 0,
+          "k": [
+            623.019,
+            263.511,
+            0
+          ],
+          "ix": 2
+        },
+        "a": {
+          "a": 0,
+          "k": [
+            623.019,
+            263.511,
+            0
+          ],
+          "ix": 1
+        },
+        "s": {
+          "a": 0,
+          "k": [
+            100,
+            100,
+            100
+          ],
+          "ix": 6
+        }
+      },
+      "ao": 0,
+      "ip": 0,
+      "op": 250,
+      "st": 0,
+      "bm": 0
+    },
+    {
+      "ddd": 0,
+      "ind": 10,
+      "ty": 2,
+      "nm": "Hair",
+      "parent": 9,
+      "refId": "image_8",
+      "sr": 1,
+      "ks": {
+        "o": {
+          "a": 0,
+          "k": 100,
+          "ix": 11
+        },
+        "r": {
+          "a": 0,
+          "k": 0,
+          "ix": 10
+        },
+        "p": {
+          "a": 0,
+          "k": [
+            600,
+            600,
+            0
+          ],
+          "ix": 2
+        },
+        "a": {
+          "a": 0,
+          "k": [
+            600,
+            600,
+            0
+          ],
+          "ix": 1
+        },
+        "s": {
+          "a": 0,
+          "k": [
+            100,
+            100,
+            100
+          ],
+          "ix": 6
+        }
+      },
+      "ao": 0,
+      "ip": 0,
+      "op": 250,
+      "st": 0,
+      "bm": 0
+    },
+    {
+      "ddd": 0,
+      "ind": 11,
+      "ty": 2,
+      "nm": "Waist",
+      "refId": "image_9",
+      "sr": 1,
+      "ks": {
+        "o": {
+          "a": 0,
+          "k": 100,
+          "ix": 11
+        },
+        "r": {
+          "a": 1,
+          "k": [
+            {
+              "i": {
+                "x": [
+                  0.333
+                ],
+                "y": [
+                  1
+                ]
+              },
+              "o": {
+                "x": [
+                  0.667
+                ],
+                "y": [
+                  0
+                ]
+              },
+              "t": 0,
+              "s": [
+                0
+              ]
+            },
+            {
+              "i": {
+                "x": [
+                  0.333
+                ],
+                "y": [
+                  1
+                ]
+              },
+              "o": {
+                "x": [
+                  0.667
+                ],
+                "y": [
+                  0
+                ]
+              },
+              "t": 25,
+              "s": [
+                -70
+              ]
+            },
+            {
+              "t": 50,
+              "s": [
+                0
+              ]
+            }
+          ],
+          "ix": 10
+        },
+        "p": {
+          "a": 0,
+          "k": [
+            604.854,
+            589.662,
+            0
+          ],
+          "ix": 2
+        },
+        "a": {
+          "a": 0,
+          "k": [
+            604.854,
+            589.662,
+            0
+          ],
+          "ix": 1
+        },
+        "s": {
+          "a": 0,
+          "k": [
+            100,
+            100,
+            100
+          ],
+          "ix": 6
+        }
+      },
+      "ao": 0,
+      "ip": 0,
+      "op": 250,
+      "st": 0,
+      "bm": 0
+    }
+  ],
+  "markers": [
+    {
+      "tm": 25,
+      "cm": "9",
+      "dr": 0
+    }
+  ]
+}

example/assets/example_with_images/images/img_0.svg

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Generator: Adobe Illustrator 24.1.2, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
+<svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
+	 viewBox="0 0 1200 1200" style="enable-background:new 0 0 1200 1200;" xml:space="preserve">
+<style type="text/css">
+	.st0{fill:#FFA913;}
+</style>
+<path class="st0" d="M641.59,439.11l7.69-142.38c0-14.5-11.76-26.26-26.26-26.26c-14.5,0-26.26,11.76-26.26,26.26l7.69,142.38
+	c0,10.26,8.31,18.57,18.57,18.57C633.28,457.68,641.59,449.37,641.59,439.11z"/>
+</svg>

example/ios/Flutter/Debug.xcconfig

@@ -1 +1,2 @@
+#include "Pods/Target Support Files/Pods-Runner/Pods-Runner.debug.xcconfig"
 #include "Generated.xcconfig"

example/ios/Flutter/Release.xcconfig

@@ -1 +1,2 @@
+#include "Pods/Target Support Files/Pods-Runner/Pods-Runner.release.xcconfig"
 #include "Generated.xcconfig"

example/ios/Podfile

@@ -0,0 +1,87 @@
+# Uncomment this line to define a global platform for your project
+# platform :ios, '9.0'
+
+# CocoaPods analytics sends network stats synchronously affecting flutter build latency.
+ENV['COCOAPODS_DISABLE_STATS'] = 'true'
+
+project 'Runner', {
+  'Debug' => :debug,
+  'Profile' => :release,
+  'Release' => :release,
+}
+
+def parse_KV_file(file, separator='=')
+  file_abs_path = File.expand_path(file)
+  if !File.exists? file_abs_path
+    return [];
+  end
+  generated_key_values = {}
+  skip_line_start_symbols = ["#", "/"]
+  File.foreach(file_abs_path) do |line|
+    next if skip_line_start_symbols.any? { |symbol| line =~ /^\s*#{symbol}/ }
+    plugin = line.split(pattern=separator)
+    if plugin.length == 2
+      podname = plugin[0].strip()
+      path = plugin[1].strip()
+      podpath = File.expand_path("#{path}", file_abs_path)
+      generated_key_values[podname] = podpath
+    else
+      puts "Invalid plugin specification: #{line}"
+    end
+  end
+  generated_key_values
+end
+
+target 'Runner' do
+  use_frameworks!
+  use_modular_headers!
+
+  # Flutter Pod
+
+  copied_flutter_dir = File.join(__dir__, 'Flutter')
+  copied_framework_path = File.join(copied_flutter_dir, 'Flutter.framework')
+  copied_podspec_path = File.join(copied_flutter_dir, 'Flutter.podspec')
+  unless File.exist?(copied_framework_path) && File.exist?(copied_podspec_path)
+    # Copy Flutter.framework and Flutter.podspec to Flutter/ to have something to link against if the xcode backend script has not run yet.
+    # That script will copy the correct debug/profile/release version of the framework based on the currently selected Xcode configuration.
+    # CocoaPods will not embed the framework on pod install (before any build phases can generate) if the dylib does not exist.
+
+    generated_xcode_build_settings_path = File.join(copied_flutter_dir, 'Generated.xcconfig')
+    unless File.exist?(generated_xcode_build_settings_path)
+      raise "Generated.xcconfig must exist. If you're running pod install manually, make sure flutter pub get is executed first"
+    end
+    generated_xcode_build_settings = parse_KV_file(generated_xcode_build_settings_path)
+    cached_framework_dir = generated_xcode_build_settings['FLUTTER_FRAMEWORK_DIR'];
+
+    unless File.exist?(copied_framework_path)
+      FileUtils.cp_r(File.join(cached_framework_dir, 'Flutter.framework'), copied_flutter_dir)
+    end
+    unless File.exist?(copied_podspec_path)
+      FileUtils.cp(File.join(cached_framework_dir, 'Flutter.podspec'), copied_flutter_dir)
+    end
+  end
+
+  # Keep pod path relative so it can be checked into Podfile.lock.
+  pod 'Flutter', :path => 'Flutter'
+
+  # Plugin Pods
+
+  # Prepare symlinks folder. We use symlinks to avoid having Podfile.lock
+  # referring to absolute paths on developers' machines.
+  system('rm -rf .symlinks')
+  system('mkdir -p .symlinks/plugins')
+  plugin_pods = parse_KV_file('../.flutter-plugins')
+  plugin_pods.each do |name, path|
+    symlink = File.join('.symlinks', 'plugins', name)
+    File.symlink(path, symlink)
+    pod name, :path => File.join(symlink, 'ios')
+  end
+end
+
+post_install do |installer|
+  installer.pods_project.targets.each do |target|
+    target.build_configurations.each do |config|
+      config.build_settings['ENABLE_BITCODE'] = 'NO'
+    end
+  end
+end

example/ios/Podfile.lock

@@ -0,0 +1,28 @@
+PODS:
+  - Flutter (1.0.0)
+  - path_provider (0.0.1):
+    - Flutter
+  - path_provider_macos (0.0.1):
+    - Flutter
+
+DEPENDENCIES:
+  - Flutter (from `Flutter`)
+  - path_provider (from `.symlinks/plugins/path_provider/ios`)
+  - path_provider_macos (from `.symlinks/plugins/path_provider_macos/ios`)
+
+EXTERNAL SOURCES:
+  Flutter:
+    :path: Flutter
+  path_provider:
+    :path: ".symlinks/plugins/path_provider/ios"
+  path_provider_macos:
+    :path: ".symlinks/plugins/path_provider_macos/ios"
+
+SPEC CHECKSUMS:
+  Flutter: 0e3d915762c693b495b44d77113d4970485de6ec
+  path_provider: fb74bd0465e96b594bb3b5088ee4a4e7bb1f2a9d
+  path_provider_macos: f760a3c5b04357c380e2fddb6f9db6f3015897e0
+
+PODFILE CHECKSUM: c34e2287a9ccaa606aeceab922830efb9a6ff69a
+
+COCOAPODS: 1.9.1

example/ios/Runner.xcodeproj/project.pbxproj

@@ -9,11 +9,8 @@
 /* Begin PBXBuildFile section */
 		1498D2341E8E89220040F4C2 /* GeneratedPluginRegistrant.m in Sources */ = {isa = PBXBuildFile; fileRef = 1498D2331E8E89220040F4C2 /* GeneratedPluginRegistrant.m */; };
 		3B3967161E833CAA004F5970 /* AppFrameworkInfo.plist in Resources */ = {isa = PBXBuildFile; fileRef = 3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */; };
-		3B80C3941E831B6300D905FE /* App.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 3B80C3931E831B6300D905FE /* App.framework */; };
-		3B80C3951E831B6300D905FE /* App.framework in Embed Frameworks */ = {isa = PBXBuildFile; fileRef = 3B80C3931E831B6300D905FE /* App.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
+		4E7FB8175FD7E724C16AD66F /* Pods_Runner.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 3978ECE970E899926A99EA4E /* Pods_Runner.framework */; };
 		74858FAF1ED2DC5600515810 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 74858FAE1ED2DC5600515810 /* AppDelegate.swift */; };
-		9705A1C61CF904A100538489 /* Flutter.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 9740EEBA1CF902C7004384FC /* Flutter.framework */; };
-		9705A1C71CF904A300538489 /* Flutter.framework in Embed Frameworks */ = {isa = PBXBuildFile; fileRef = 9740EEBA1CF902C7004384FC /* Flutter.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
 		97C146FC1CF9000F007C117D /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FA1CF9000F007C117D /* Main.storyboard */; };
 		97C146FE1CF9000F007C117D /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FD1CF9000F007C117D /* Assets.xcassets */; };
 		97C147011CF9000F007C117D /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FF1CF9000F007C117D /* LaunchScreen.storyboard */; };
@@ -26,8 +23,6 @@
 			dstPath = "";
 			dstSubfolderSpec = 10;
 			files = (
-				3B80C3951E831B6300D905FE /* App.framework in Embed Frameworks */,
-				9705A1C71CF904A300538489 /* Flutter.framework in Embed Frameworks */,
 			);
 			name = "Embed Frameworks";
 			runOnlyForDeploymentPostprocessing = 0;
@@ -37,14 +32,16 @@
 /* Begin PBXFileReference section */
 		1498D2321E8E86230040F4C2 /* GeneratedPluginRegistrant.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = GeneratedPluginRegistrant.h; sourceTree = "<group>"; };
 		1498D2331E8E89220040F4C2 /* GeneratedPluginRegistrant.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = GeneratedPluginRegistrant.m; sourceTree = "<group>"; };
+		1B497423C23FD55DD0B8C378 /* Pods-Runner.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-Runner.debug.xcconfig"; path = "Target Support Files/Pods-Runner/Pods-Runner.debug.xcconfig"; sourceTree = "<group>"; };
+		31ACBCF01D379565237D9814 /* Pods-Runner.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-Runner.release.xcconfig"; path = "Target Support Files/Pods-Runner/Pods-Runner.release.xcconfig"; sourceTree = "<group>"; };
+		3978ECE970E899926A99EA4E /* Pods_Runner.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = Pods_Runner.framework; sourceTree = BUILT_PRODUCTS_DIR; };
 		3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; name = AppFrameworkInfo.plist; path = Flutter/AppFrameworkInfo.plist; sourceTree = "<group>"; };
-		3B80C3931E831B6300D905FE /* App.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = App.framework; path = Flutter/App.framework; sourceTree = "<group>"; };
+		5A699D4B67473B61D811D350 /* Pods-Runner.profile.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-Runner.profile.xcconfig"; path = "Target Support Files/Pods-Runner/Pods-Runner.profile.xcconfig"; sourceTree = "<group>"; };
 		74858FAD1ED2DC5600515810 /* Runner-Bridging-Header.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = "Runner-Bridging-Header.h"; sourceTree = "<group>"; };
 		74858FAE1ED2DC5600515810 /* AppDelegate.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
 		7AFA3C8E1D35360C0083082E /* Release.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; name = Release.xcconfig; path = Flutter/Release.xcconfig; sourceTree = "<group>"; };
 		9740EEB21CF90195004384FC /* Debug.xcconfig */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.xcconfig; name = Debug.xcconfig; path = Flutter/Debug.xcconfig; sourceTree = "<group>"; };
 		9740EEB31CF90195004384FC /* Generated.xcconfig */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.xcconfig; name = Generated.xcconfig; path = Flutter/Generated.xcconfig; sourceTree = "<group>"; };
-		9740EEBA1CF902C7004384FC /* Flutter.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = Flutter.framework; path = Flutter/Flutter.framework; sourceTree = "<group>"; };
 		97C146EE1CF9000F007C117D /* Runner.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = Runner.app; sourceTree = BUILT_PRODUCTS_DIR; };
 		97C146FB1CF9000F007C117D /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
 		97C146FD1CF9000F007C117D /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
@@ -57,20 +54,36 @@
 			isa = PBXFrameworksBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
-				9705A1C61CF904A100538489 /* Flutter.framework in Frameworks */,
-				3B80C3941E831B6300D905FE /* App.framework in Frameworks */,
+				4E7FB8175FD7E724C16AD66F /* Pods_Runner.framework in Frameworks */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
 /* End PBXFrameworksBuildPhase section */
 
 /* Begin PBXGroup section */
+		14B9AAB3E57437F7B9E442AA /* Pods */ = {
+			isa = PBXGroup;
+			children = (
+				1B497423C23FD55DD0B8C378 /* Pods-Runner.debug.xcconfig */,
+				31ACBCF01D379565237D9814 /* Pods-Runner.release.xcconfig */,
+				5A699D4B67473B61D811D350 /* Pods-Runner.profile.xcconfig */,
+			);
+			name = Pods;
+			path = Pods;
+			sourceTree = "<group>";
+		};
+		3E6BFE152BA6E928D3C57CB7 /* Frameworks */ = {
+			isa = PBXGroup;
+			children = (
+				3978ECE970E899926A99EA4E /* Pods_Runner.framework */,
+			);
+			name = Frameworks;
+			sourceTree = "<group>";
+		};
 		9740EEB11CF90186004384FC /* Flutter */ = {
 			isa = PBXGroup;
 			children = (
-				3B80C3931E831B6300D905FE /* App.framework */,
 				3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */,
-				9740EEBA1CF902C7004384FC /* Flutter.framework */,
 				9740EEB21CF90195004384FC /* Debug.xcconfig */,
 				7AFA3C8E1D35360C0083082E /* Release.xcconfig */,
 				9740EEB31CF90195004384FC /* Generated.xcconfig */,
@@ -84,6 +97,8 @@
 				9740EEB11CF90186004384FC /* Flutter */,
 				97C146F01CF9000F007C117D /* Runner */,
 				97C146EF1CF9000F007C117D /* Products */,
+				14B9AAB3E57437F7B9E442AA /* Pods */,
+				3E6BFE152BA6E928D3C57CB7 /* Frameworks */,
 			);
 			sourceTree = "<group>";
 		};
@@ -125,12 +140,14 @@
 			isa = PBXNativeTarget;
 			buildConfigurationList = 97C147051CF9000F007C117D /* Build configuration list for PBXNativeTarget "Runner" */;
 			buildPhases = (
+				43690862AB1C8D2C663E62A1 /* [CP] Check Pods Manifest.lock */,
 				9740EEB61CF901F6004384FC /* Run Script */,
 				97C146EA1CF9000F007C117D /* Sources */,
 				97C146EB1CF9000F007C117D /* Frameworks */,
 				97C146EC1CF9000F007C117D /* Resources */,
 				9705A1C41CF9048500538489 /* Embed Frameworks */,
 				3B06AD1E1E4923F5004D2608 /* Thin Binary */,
+				DA3E0E6397CD983DB6281FAB /* [CP] Embed Pods Frameworks */,
 			);
 			buildRules = (
 			);
@@ -202,7 +219,29 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/sh;
-			shellScript = "/bin/sh \"$FLUTTER_ROOT/packages/flutter_tools/bin/xcode_backend.sh\" thin";
+			shellScript = "/bin/sh \"$FLUTTER_ROOT/packages/flutter_tools/bin/xcode_backend.sh\" embed_and_thin";
+		};
+		43690862AB1C8D2C663E62A1 /* [CP] Check Pods Manifest.lock */ = {
+			isa = PBXShellScriptBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			inputFileListPaths = (
+			);
+			inputPaths = (
+				"${PODS_PODFILE_DIR_PATH}/Podfile.lock",
+				"${PODS_ROOT}/Manifest.lock",
+			);
+			name = "[CP] Check Pods Manifest.lock";
+			outputFileListPaths = (
+			);
+			outputPaths = (
+				"$(DERIVED_FILE_DIR)/Pods-Runner-checkManifestLockResult.txt",
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+			shellPath = /bin/sh;
+			shellScript = "diff \"${PODS_PODFILE_DIR_PATH}/Podfile.lock\" \"${PODS_ROOT}/Manifest.lock\" > /dev/null\nif [ $? != 0 ] ; then\n    # print error to STDERR\n    echo \"error: The sandbox is not in sync with the Podfile.lock. Run 'pod install' or update your CocoaPods installation.\" >&2\n    exit 1\nfi\n# This output is used by Xcode 'outputs' to avoid re-running this script phase.\necho \"SUCCESS\" > \"${SCRIPT_OUTPUT_FILE_0}\"\n";
+			showEnvVarsInLog = 0;
 		};
 		9740EEB61CF901F6004384FC /* Run Script */ = {
 			isa = PBXShellScriptBuildPhase;
@@ -218,6 +257,26 @@
 			shellPath = /bin/sh;
 			shellScript = "/bin/sh \"$FLUTTER_ROOT/packages/flutter_tools/bin/xcode_backend.sh\" build";
 		};
+		DA3E0E6397CD983DB6281FAB /* [CP] Embed Pods Frameworks */ = {
+			isa = PBXShellScriptBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			inputPaths = (
+				"${PODS_ROOT}/Target Support Files/Pods-Runner/Pods-Runner-frameworks.sh",
+				"${PODS_ROOT}/../Flutter/Flutter.framework",
+				"${BUILT_PRODUCTS_DIR}/path_provider/path_provider.framework",
+			);
+			name = "[CP] Embed Pods Frameworks";
+			outputPaths = (
+				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/Flutter.framework",
+				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/path_provider.framework",
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+			shellPath = /bin/sh;
+			shellScript = "\"${PODS_ROOT}/Target Support Files/Pods-Runner/Pods-Runner-frameworks.sh\"\n";
+			showEnvVarsInLog = 0;
+		};
 /* End PBXShellScriptBuildPhase section */
 
 /* Begin PBXSourcesBuildPhase section */

example/ios/Runner.xcworkspace/contents.xcworkspacedata

@@ -4,4 +4,7 @@
    <FileRef
       location = "group:Runner.xcodeproj">
    </FileRef>
+   <FileRef
+      location = "group:Pods/Pods.xcodeproj">
+   </FileRef>
 </Workspace>

example/lib/examples/alert_dialog.dart

@@ -0,0 +1,47 @@
+import 'package:flutter/material.dart';
+import 'package:flutter/scheduler.dart';
+import 'package:lottie/lottie.dart';
+
+void main() => runApp(App());
+
+class App extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      home: Scaffold(body: _Page()),
+    );
+  }
+}
+
+class _Page extends StatefulWidget {
+  @override
+  __PageState createState() => __PageState();
+}
+
+class __PageState extends State<_Page> {
+  @override
+  void initState() {
+    super.initState();
+
+    SchedulerBinding.instance.addPostFrameCallback((_) => _showLoader());
+  }
+
+  void _showLoader() {
+    showDialog<void>(
+      context: context,
+      builder: (context) => Center(
+        child: Lottie.network(
+          'https://assets10.lottiefiles.com/datafiles/QeC7XD39x4C1CIj/data.json',
+          fit: BoxFit.contain,
+          width: 200,
+          height: 200,
+        ),
+      ),
+    );
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Center();
+  }
+}

example/lib/examples/animate_no_repeat.dart

@@ -0,0 +1,31 @@
+import 'package:flutter/material.dart';
+import 'package:lottie/lottie.dart';
+
+void main() async {
+  runApp(App());
+}
+
+class App extends StatelessWidget {
+  const App({Key key}) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      color: Colors.lightBlue,
+      home: Scaffold(
+        backgroundColor: Colors.lightBlue,
+        body: Center(
+          child: SizedBox(
+            width: 300,
+            height: 300,
+            child: Lottie.asset(
+              'assets/LottieLogo1.json',
+              animate: true,
+              repeat: false,
+            ),
+          ),
+        ),
+      ),
+    );
+  }
+}

example/lib/examples/animation_controller.dart

@@ -30,8 +30,8 @@ class _MyAppState extends State<MyApp> with TickerProviderStateMixin {
       home: Scaffold(
         body: ListView(
           children: [
-            Lottie.network(
-              'https://raw.githubusercontent.com/xvrh/lottie-flutter/master/sample_app/assets/Mobilo/C.json',
+            Lottie.asset(
+              'assets/LottieLogo1.json',
               controller: _controller,
               onLoaded: (composition) {
                 // Configure the AnimationController with the duration of the

example/lib/examples/animation_full_control.dart

@@ -0,0 +1,109 @@
+import 'package:flutter/material.dart';
+import 'package:lottie/lottie.dart';
+
+/// This example show how to play the Lottie animation in various way:
+/// - Start and stop the animation on event callback
+/// - Play the animation forward and backward
+/// - Loop between two specific frames
+///
+/// This works by creating an AnimationController instance and passing it
+/// to the Lottie widget.
+/// The AnimationController class has a rich API to run the animation in various ways.
+void main() => runApp(MyApp());
+
+class MyApp extends StatefulWidget {
+  @override
+  _MyAppState createState() => _MyAppState();
+}
+
+class _MyAppState extends State<MyApp> with TickerProviderStateMixin {
+  AnimationController _controller;
+
+  @override
+  void initState() {
+    super.initState();
+
+    _controller = AnimationController(vsync: this)
+      ..value = 0.5
+      ..addListener(() {
+        setState(() {
+          // Rebuild the widget at each frame to update the "progress" label.
+        });
+      });
+  }
+
+  @override
+  void dispose() {
+    _controller.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      home: Scaffold(
+        appBar: AppBar(
+          title: Text('Animation control'),
+        ),
+        body: Column(
+          children: <Widget>[
+            const SizedBox(height: 20),
+            Lottie.asset(
+              'assets/LottieLogo1.json',
+              controller: _controller,
+              height: 300,
+              onLoaded: (composition) {
+                setState(() {
+                  _controller.duration = composition.duration;
+                });
+              },
+            ),
+            Text('${_controller.value.toStringAsFixed(2)}'),
+            Row(
+              mainAxisAlignment: MainAxisAlignment.center,
+              children: [
+                // Play backward
+                IconButton(
+                  icon: Icon(Icons.arrow_left),
+                  onPressed: () {
+                    _controller.reverse();
+                  },
+                ),
+                // Pause
+                IconButton(
+                  icon: Icon(Icons.pause),
+                  onPressed: () {
+                    _controller.stop();
+                  },
+                ),
+                // Play forward
+                IconButton(
+                  icon: Icon(Icons.arrow_right),
+                  onPressed: () {
+                    _controller.forward();
+                  },
+                ),
+              ],
+            ),
+            const SizedBox(height: 30),
+            RaisedButton(
+              child: Text('Loop between frames'),
+              onPressed: () {
+                // Loop between 2 specifics frames
+
+                var start = 0.1;
+                var stop = 0.5;
+                _controller.repeat(
+                  min: start,
+                  max: stop,
+                  reverse: true,
+                  period: _controller.duration * (stop - start),
+                );
+              },
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}

example/lib/examples/custom_draw.dart

@@ -69,19 +69,20 @@ class CustomDrawer extends StatelessWidget {
 }
 
 class _Painter extends CustomPainter {
-  final LottieComposition composition;
+  final LottieDrawable drawable;
 
-  _Painter(this.composition);
+  _Painter(LottieComposition composition)
+      : drawable = LottieDrawable(composition);
 
   @override
   void paint(Canvas canvas, Size size) {
-    var drawable = LottieDrawable(composition);
-
     var frameCount = 40;
     var columns = 10;
     for (var i = 0; i < frameCount; i++) {
       var destRect = Offset(i % columns * 50.0, i ~/ 10 * 80.0) & (size / 5);
-      drawable.draw(canvas, destRect, progress: i / frameCount);
+      drawable
+        ..setProgress(i / frameCount)
+        ..draw(canvas, destRect);
     }
   }
 

example/lib/examples/dynamic_properties.dart

@@ -0,0 +1,86 @@
+import 'package:flutter/cupertino.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_colorpicker/flutter_colorpicker.dart';
+import 'package:lottie/lottie.dart';
+
+void main() async {
+  runApp(App());
+}
+
+class App extends StatefulWidget {
+  const App({Key key}) : super(key: key);
+
+  @override
+  _AppState createState() => _AppState();
+}
+
+class _AppState extends State<App> with TickerProviderStateMixin {
+  Color _color = Colors.green;
+  double _opacity = 0.5;
+  bool _useDelegates = true;
+
+  @override
+  Widget build(BuildContext context) {
+    var valueDelegates = [
+      ValueDelegate.color(['Shape Layer 1', 'Rectangle', 'Fill 1'],
+          value: _color),
+      ValueDelegate.opacity(['Shape Layer 1', 'Rectangle', 'Fill 1'],
+          callback: (_) => (_opacity * 100).round()),
+    ];
+
+    return MaterialApp(
+      color: Colors.blue,
+      home: Scaffold(
+        backgroundColor: Colors.white,
+        appBar: AppBar(
+          title: Text('Dynamic properties'),
+        ),
+        body: ListView(
+          children: <Widget>[
+            SizedBox(
+              width: 300,
+              height: 300,
+              child: Lottie.asset(
+                'assets/Tests/Shapes.json',
+                delegates: LottieDelegates(
+                    values: _useDelegates ? valueDelegates : null),
+              ),
+            ),
+            Checkbox(
+              value: _useDelegates,
+              onChanged: (newValue) {
+                setState(() {
+                  _useDelegates = newValue;
+                });
+              },
+            ),
+            Slider(
+              value: _opacity,
+              onChanged: (newOpacity) {
+                setState(() {
+                  _opacity = newOpacity;
+                });
+              },
+            ),
+            Center(
+              child: Container(
+                width: 500,
+                child: ColorPicker(
+                  pickerColor: _color,
+                  onColorChanged: (newColor) {
+                    setState(() {
+                      _color = newColor;
+                    });
+                  },
+                  showLabel: false,
+                  enableAlpha: false,
+                  pickerAreaHeightPercent: 0.8,
+                ),
+              ),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}

example/lib/examples/dynamic_text.dart

@@ -0,0 +1,72 @@
+import 'package:flutter/cupertino.dart';
+import 'package:flutter/material.dart';
+import 'package:lottie/lottie.dart';
+
+void main() async {
+  runApp(App());
+}
+
+class App extends StatefulWidget {
+  const App({Key key}) : super(key: key);
+
+  @override
+  _AppState createState() => _AppState();
+}
+
+class _AppState extends State<App> with TickerProviderStateMixin {
+  TextEditingController _textController;
+
+  @override
+  void initState() {
+    super.initState();
+
+    _textController = TextEditingController(text: /*'🔥Fire🔥'*/ 'Fire');
+  }
+
+  @override
+  void dispose() {
+    _textController.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      color: Colors.blue,
+      home: Scaffold(
+        backgroundColor: Colors.white,
+        appBar: AppBar(
+          title: Text('Dynamic text'),
+        ),
+        body: Center(
+          child: Column(
+            children: <Widget>[
+              SizedBox(
+                width: 300,
+                height: 300,
+                child: Lottie.asset(
+                  'assets/Tests/DynamicText.json',
+                  delegates: LottieDelegates(
+                    text: (animationText) => _textController.text,
+                    textStyle: (font) => TextStyle(
+                        fontFamily: font.fontFamily,
+                        fontStyle: FontStyle.italic),
+                  ),
+                ),
+              ),
+              Container(
+                width: 300,
+                child: CupertinoTextField(
+                  controller: _textController,
+                  onChanged: (newText) {
+                    setState(() {});
+                  },
+                ),
+              )
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+}

example/lib/examples/hide_after_complete.dart

@@ -0,0 +1,70 @@
+import 'package:flutter/material.dart';
+import 'package:lottie/lottie.dart';
+
+void main() async {
+  runApp(App());
+}
+
+class App extends StatefulWidget {
+  const App({Key key}) : super(key: key);
+
+  @override
+  _AppState createState() => _AppState();
+}
+
+class _AppState extends State<App> with TickerProviderStateMixin {
+  AnimationController _animationController;
+  bool _showAnimation = true;
+
+  @override
+  void initState() {
+    super.initState();
+    _animationController = AnimationController(vsync: this)
+      ..addStatusListener((status) {
+        if (status == AnimationStatus.completed) {
+          setState(() {
+            _showAnimation = false;
+          });
+        }
+      });
+  }
+
+  @override
+  void dispose() {
+    _animationController.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      color: Colors.lightBlue,
+      home: Scaffold(
+        backgroundColor: Colors.lightBlue,
+        appBar: AppBar(
+          title: Text('Show lottie animation: $_showAnimation'),
+        ),
+        body: SingleChildScrollView(
+          child: Center(
+            child: Column(
+              children: [
+                if (_showAnimation)
+                  Lottie.asset(
+                    'assets/LottieLogo1.json',
+                    controller: _animationController,
+                    width: 200,
+                    onLoaded: (composition) {
+                      _animationController
+                        ..duration = composition.duration
+                        ..reset()
+                        ..forward();
+                    },
+                  ),
+              ],
+            ),
+          ),
+        ),
+      ),
+    );
+  }
+}

example/lib/examples/main.dart

@@ -1,27 +0,0 @@
-import 'package:flutter/material.dart';
-import 'package:lottie/lottie.dart';
-
-void main() => runApp(MyApp());
-
-class MyApp extends StatelessWidget {
-  @override
-  Widget build(BuildContext context) {
-    return MaterialApp(
-      home: Scaffold(
-        body: ListView(
-          children: [
-            // Load a Lottie file from your assets
-            Lottie.asset('assets/LottieLogo1.json'),
-
-            // Load a Lottie file from a remote url
-            Lottie.network(
-                'https://raw.githubusercontent.com/xvrh/lottie-flutter/master/example/assets/Mobilo/A.json'),
-
-            // Load an animation and its images from a zip file
-            Lottie.asset('assets/lottiesfiles/angel.zip'),
-          ],
-        ),
-      ),
-    );
-  }
-}

example/lib/examples/markers.dart

@@ -0,0 +1,122 @@
+import 'package:flutter/material.dart';
+import 'package:lottie/lottie.dart';
+
+/// This example shows how to play the animation between two markers.
+/// It is based on this article for lottie-ios:
+/// https://medium.com/swlh/controlling-lottie-animation-with-markers-5e9035d94623
+void main() async {
+  runApp(App());
+}
+
+class App extends StatefulWidget {
+  const App({Key key}) : super(key: key);
+
+  @override
+  _AppState createState() => _AppState();
+}
+
+class _AppState extends State<App> with TickerProviderStateMixin {
+  Future<LottieComposition> _composition;
+
+  @override
+  void initState() {
+    super.initState();
+    _composition = AssetLottie('assets/TwitterHeartButton.json').load();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      theme: ThemeData.dark(),
+      home: Scaffold(
+        appBar: AppBar(
+          title: Text('Markers'),
+        ),
+        body: FutureBuilder<LottieComposition>(
+          future: _composition,
+          builder: (context, snapshot) {
+            if (snapshot.hasError) return ErrorWidget(snapshot.error);
+            if (!snapshot.hasData) return CircularProgressIndicator();
+            return _LottieDetails(snapshot.data);
+          },
+        ),
+      ),
+    );
+  }
+}
+
+class _LottieDetails extends StatefulWidget {
+  final LottieComposition composition;
+
+  const _LottieDetails(this.composition, {Key key}) : super(key: key);
+
+  @override
+  _LottieDetailsState createState() => _LottieDetailsState();
+}
+
+class _LottieDetailsState extends State<_LottieDetails>
+    with TickerProviderStateMixin {
+  AnimationController _controller;
+
+  @override
+  void initState() {
+    super.initState();
+    _controller = AnimationController(vsync: this);
+  }
+
+  @override
+  void dispose() {
+    _controller.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return ListView(
+      children: [
+        Lottie(
+          composition: widget.composition,
+          controller: _controller,
+          height: 150,
+        ),
+        ListTile(
+          title: Text('Composition start frame'),
+          trailing: Text(widget.composition.startFrame.toStringAsFixed(1)),
+        ),
+        ListTile(
+          title: Text('Composition duration'),
+          trailing: Text(widget.composition.durationFrames.toStringAsFixed(1)),
+        ),
+        RaisedButton(
+          child: Text('touchDownEnd - touchUpCancel'),
+          onPressed: () => _playBetween('touchDownEnd', 'touchUpCancel'),
+        ),
+        RaisedButton(
+          child: Text('touchDownStart - touchDownEnd'),
+          onPressed: () => _playBetween('touchDownStart', 'touchDownEnd'),
+        ),
+        RaisedButton(
+          child: Text('touchDownEnd - touchUpEnd'),
+          onPressed: () => _playBetween('touchDownEnd', 'touchUpEnd'),
+        ),
+        for (var marker in widget.composition.markers)
+          ListTile(
+            title: Text(marker.name),
+            subtitle: Text(
+                '${marker.startFrame.toStringAsFixed(1)} ${marker.durationFrames.toStringAsFixed(1)}'),
+            trailing: Text(
+                '[${marker.start.toStringAsFixed(2)}-${marker.end.toStringAsFixed(2)}]'),
+          ),
+      ],
+    );
+  }
+
+  void _playBetween(String marker1, String marker2) {
+    var start = widget.composition.getMarker(marker1).start;
+    var end = widget.composition.getMarker(marker2).start;
+
+    _controller.value = start;
+    _controller.animateTo(end,
+        duration: widget.composition.duration * (end - start).abs());
+  }
+}

example/lib/examples/run_once.dart

@@ -0,0 +1,71 @@
+import 'package:flutter/material.dart';
+import 'package:logging/logging.dart';
+import 'package:lottie/lottie.dart';
+import '../src/all_files.g.dart';
+
+void main() async {
+  Logger.root
+    ..level = Level.ALL
+    ..onRecord.listen(print);
+
+  runApp(App());
+}
+
+class App extends StatefulWidget {
+  const App({Key key}) : super(key: key);
+
+  @override
+  _AppState createState() => _AppState();
+}
+
+class _AppState extends State<App> with TickerProviderStateMixin {
+  int _index = 0;
+  AnimationController _animationController;
+
+  @override
+  void initState() {
+    super.initState();
+    _animationController = AnimationController(vsync: this)
+      ..addStatusListener((status) {
+        if (status == AnimationStatus.completed) {
+          setState(() {
+            ++_index;
+          });
+        }
+      });
+  }
+
+  @override
+  void dispose() {
+    _animationController.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      color: Colors.lightBlue,
+      home: Scaffold(
+        backgroundColor: Colors.lightBlue,
+        appBar: AppBar(
+          title: Text('$_index'),
+        ),
+        body: SingleChildScrollView(
+          child: Center(
+            child: Column(
+              children: [
+                Lottie.asset(files[_index % files.length],
+                    controller: _animationController, onLoaded: (composition) {
+                  _animationController
+                    ..duration = composition.duration
+                    ..reset()
+                    ..forward();
+                }),
+              ],
+            ),
+          ),
+        ),
+      ),
+    );
+  }
+}

example/lib/examples/save_frames.dart

@@ -0,0 +1,100 @@
+import 'dart:io';
+import 'dart:ui';
+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+import 'package:lottie/lottie.dart';
+import 'package:path/path.dart' as p;
+import 'package:path_provider/path_provider.dart';
+
+/// This example shows how to save the frame of an animation to files on disk.
+void main() => runApp(MyApp());
+
+class MyApp extends StatefulWidget {
+  @override
+  _MyAppState createState() => _MyAppState();
+}
+
+class _MyAppState extends State<MyApp> {
+  List<File> _frames;
+
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      home: Scaffold(
+        backgroundColor: Colors.grey,
+        body: SafeArea(
+          child: Column(
+            crossAxisAlignment: CrossAxisAlignment.stretch,
+            children: [
+              RaisedButton(
+                child: Text('Export all frames'),
+                onPressed: _export,
+              ),
+              if (_frames != null)
+                Expanded(
+                  child: GridView.count(
+                    crossAxisCount: 10,
+                    children: [..._frames.map((f) => Image.file(f))],
+                  ),
+                )
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+
+  Future<void> _export() async {
+    var composition =
+        await AssetLottie('assets/lottiefiles/airbnb.json').load();
+
+    var frames = await exportFrames(
+        composition, await _createTempDirectory('export-lottie'),
+        progresses: [for (var i = 0.0; i <= 1; i += 0.1) i],
+        size: Size(50, 50));
+
+    setState(() {
+      _frames = frames;
+    });
+  }
+}
+
+Future<List<File>> exportFrames(LottieComposition composition, String directory,
+    {@required Size size, @required List<double> progresses}) async {
+  var drawable = LottieDrawable(composition);
+
+  var frames = <File>[];
+  for (var progress in progresses) {
+    drawable.setProgress(progress);
+
+    var bytes = await _toByteData(drawable, size);
+    var fileName = (progress * 100).round().toString().padLeft(3, '0');
+
+    var file = File(p.join(directory, '$fileName.png'));
+    await file.writeAsBytes(bytes.buffer.asUint8List());
+
+    frames.add(file);
+  }
+
+  return frames;
+}
+
+Future<ByteData> _toByteData(LottieDrawable drawable, Size size) async {
+  var pictureRecorder = PictureRecorder();
+  var canvas = Canvas(pictureRecorder);
+
+  drawable.draw(canvas, Offset.zero & size);
+
+  var picture = pictureRecorder.endRecording();
+  var image = await picture.toImage(size.width.toInt(), size.height.toInt());
+  return await image.toByteData(format: ImageByteFormat.png);
+}
+
+Future<String> _createTempDirectory(String folderName) async {
+  final tempDirectory = await getTemporaryDirectory();
+  var dir = Directory(p.join(tempDirectory.path, folderName));
+  if (!dir.existsSync()) {
+    await dir.create(recursive: true);
+  }
+  return dir.path;
+}

example/lib/examples/simple_dynamic_properties.dart

@@ -0,0 +1,45 @@
+import 'package:flutter/material.dart';
+import 'package:lottie/lottie.dart';
+
+void main() => runApp(MyApp());
+
+class MyApp extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      home: Scaffold(
+        body: ListView(
+          children: [_Animation()],
+        ),
+      ),
+    );
+  }
+}
+
+//--- example
+class _Animation extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    return Lottie.asset(
+      'assets/Tests/Shapes.json',
+      delegates: LottieDelegates(
+        text: (initialText) => '**$initialText**',
+        values: [
+          ValueDelegate.color(
+            const ['Shape Layer 1', 'Rectangle', 'Fill 1'],
+            value: Colors.red,
+          ),
+          ValueDelegate.opacity(
+            const ['Shape Layer 1', 'Rectangle'],
+            callback: (frameInfo) => (frameInfo.overallProgress * 100).round(),
+          ),
+          ValueDelegate.position(
+            const ['Shape Layer 1', 'Rectangle', '**'],
+            relative: Offset(100, 200),
+          ),
+        ],
+      ),
+    );
+  }
+}
+//---

example/lib/main.dart

@@ -1,159 +1,24 @@
-import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
-import 'package:logging/logging.dart';
 import 'package:lottie/lottie.dart';
-import 'package:lottie/src/l.dart';
-import 'src/all_files.g.dart';
 
-void main() {
-  Logger.root
-    ..level = Level.ALL
-    ..onRecord.listen(print);
-  L.setTraceEnabled(true);
-  runApp(App());
-}
+void main() => runApp(MyApp());
 
-class App extends StatelessWidget {
+class MyApp extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     return MaterialApp(
-      //showPerformanceOverlay: true,
       home: Scaffold(
-        appBar: AppBar(
-          title: Text('Lottie Flutter'),
-        ),
-        body: GridView.builder(
-          itemCount: files.length,
-          gridDelegate:
-              SliverGridDelegateWithFixedCrossAxisCount(crossAxisCount: 4),
-          itemBuilder: (context, index) {
-            var assetName = files[index];
-            return GestureDetector(
-              child: _Item(
-                child: Lottie.asset(
-                  assetName,
-                  frameBuilder: (context, child, composition) {
-                    return AnimatedOpacity(
-                      child: child,
-                      opacity: composition == null ? 0 : 1,
-                      duration: const Duration(seconds: 1),
-                      curve: Curves.easeOut,
-                    );
-                  },
-                ),
-              ),
-              onTap: () {
-                Navigator.of(context).push(
-                    MaterialPageRoute(builder: (context) => Detail(assetName)));
-              },
-            );
-          },
-        ),
-      ),
-    );
-  }
-}
-
-class _Item extends StatelessWidget {
-  final Widget child;
-
-  const _Item({Key key, this.child}) : super(key: key);
-
-  @override
-  Widget build(BuildContext context) {
-    return Padding(
-      padding: const EdgeInsets.all(8.0),
-      child: Container(
-        decoration: BoxDecoration(
-            color: Colors.white,
-            //border: Border.all(color: Colors.black12),
-            borderRadius: BorderRadius.all(Radius.circular(10)),
-            boxShadow: [
-              BoxShadow(
-                  color: Colors.black.withOpacity(0.1),
-                  offset: Offset(2, 2),
-                  blurRadius: 5)
-            ]),
-        child: child,
-      ),
-    );
-  }
-}
-
-class Detail extends StatefulWidget {
-  final String assetName;
-
-  const Detail(this.assetName, {Key key}) : super(key: key);
-
-  @override
-  _DetailState createState() => _DetailState();
-}
-
-class _DetailState extends State<Detail> with TickerProviderStateMixin {
-  AnimationController _controller;
-
-  @override
-  void initState() {
-    super.initState();
-
-    _controller = AnimationController(vsync: this);
-  }
-
-  @override
-  void dispose() {
-    _controller.dispose();
-
-    super.dispose();
-  }
-
-  @override
-  Widget build(BuildContext context) {
-    return Scaffold(
-      appBar: AppBar(
-        title: Text('${widget.assetName}'),
-      ),
-      body: SingleChildScrollView(
-        child: Column(
+        body: ListView(
           children: [
-            Center(
-              child: Lottie.asset(
-                widget.assetName,
-                controller: _controller,
-                onLoaded: (composition) {
-                  _controller.duration = composition.duration;
-                  _controller.repeat();
-                },
-              ),
-            ),
-            AnimatedBuilder(
-              animation: _controller,
-              builder: (context, _) => Row(
-                children: <Widget>[
-                  Expanded(
-                    child: Slider(
-                      value: _controller.value,
-                      onChanged: (newValue) {
-                        _controller.value = newValue;
-                      },
-                    ),
-                  ),
-                  IconButton(
-                    icon: Icon(_controller.isAnimating
-                        ? Icons.stop
-                        : Icons.play_arrow),
-                    onPressed: () {
-                      setState(() {
-                        if (_controller.isAnimating) {
-                          _controller.stop();
-                        } else {
-                          _controller.repeat();
-                        }
-                      });
-                    },
-                  ),
-                ],
-              ),
-            ),
+            // Load a Lottie file from your assets
+            Lottie.asset('assets/LottieLogo1.json'),
+
+            // Load a Lottie file from a remote url
+            Lottie.network(
+                'https://raw.githubusercontent.com/xvrh/lottie-flutter/master/example/assets/Mobilo/A.json'),
+
+            // Load an animation and its images from a zip file
+            Lottie.asset('assets/lottiefiles/angel.zip'),
           ],
         ),
       ),

example/lib/main_app.dart

@@ -0,0 +1,160 @@
+import 'package:flutter/cupertino.dart';
+import 'package:flutter/material.dart';
+import 'package:logging/logging.dart';
+import 'package:lottie/lottie.dart';
+import 'src/all_files.g.dart';
+
+void main() {
+  Logger.root
+    ..level = Level.ALL
+    ..onRecord.listen(print);
+  Lottie.traceEnabled = true;
+  runApp(App());
+}
+
+class App extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      //showPerformanceOverlay: true,
+      home: Scaffold(
+        appBar: AppBar(
+          title: Text('Lottie Flutter'),
+        ),
+        body: GridView.builder(
+          itemCount: files.length,
+          gridDelegate:
+              SliverGridDelegateWithFixedCrossAxisCount(crossAxisCount: 4),
+          itemBuilder: (context, index) {
+            var assetName = files[index];
+            return GestureDetector(
+              child: _Item(
+                child: Lottie.asset(
+                  assetName,
+                  frameBuilder: (context, child, composition) {
+                    return AnimatedOpacity(
+                      child: child,
+                      opacity: composition == null ? 0 : 1,
+                      duration: const Duration(seconds: 1),
+                      curve: Curves.easeOut,
+                    );
+                  },
+                ),
+              ),
+              onTap: () {
+                Navigator.of(context).push(MaterialPageRoute<void>(
+                    builder: (context) => Detail(assetName)));
+              },
+            );
+          },
+        ),
+      ),
+    );
+  }
+}
+
+class _Item extends StatelessWidget {
+  final Widget child;
+
+  const _Item({Key key, this.child}) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return Padding(
+      padding: const EdgeInsets.all(8.0),
+      child: Container(
+        decoration: BoxDecoration(
+            color: Colors.white,
+            borderRadius: BorderRadius.all(Radius.circular(10)),
+            boxShadow: [
+              BoxShadow(
+                  color: Colors.black.withOpacity(0.1),
+                  offset: Offset(2, 2),
+                  blurRadius: 5)
+            ]),
+        child: child,
+      ),
+    );
+  }
+}
+
+class Detail extends StatefulWidget {
+  final String assetName;
+
+  const Detail(this.assetName, {Key key}) : super(key: key);
+
+  @override
+  _DetailState createState() => _DetailState();
+}
+
+class _DetailState extends State<Detail> with TickerProviderStateMixin {
+  AnimationController _controller;
+
+  @override
+  void initState() {
+    super.initState();
+
+    _controller = AnimationController(vsync: this);
+  }
+
+  @override
+  void dispose() {
+    _controller.dispose();
+
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: Text('${widget.assetName}'),
+      ),
+      body: SingleChildScrollView(
+        child: Column(
+          children: [
+            Center(
+              child: Lottie.asset(
+                widget.assetName,
+                controller: _controller,
+                onLoaded: (composition) {
+                  _controller.duration = composition.duration;
+                  _controller.repeat();
+                },
+              ),
+            ),
+            AnimatedBuilder(
+              animation: _controller,
+              builder: (context, _) => Row(
+                children: <Widget>[
+                  Expanded(
+                    child: Slider(
+                      value: _controller.value,
+                      onChanged: (newValue) {
+                        _controller.value = newValue;
+                      },
+                    ),
+                  ),
+                  IconButton(
+                    icon: Icon(_controller.isAnimating
+                        ? Icons.stop
+                        : Icons.play_arrow),
+                    onPressed: () {
+                      setState(() {
+                        if (_controller.isAnimating) {
+                          _controller.stop();
+                        } else {
+                          _controller.repeat();
+                        }
+                      });
+                    },
+                  ),
+                ],
+              ),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}

example/lib/src/all_files.g.dart

@@ -1,341 +1,355 @@
 // Generated from tool/generate_file_list.dart
 final files = [
   'assets/14595-thumbs-up.json',
-  'assets/Mobilo/T.json',
+  'assets/17297-fireworks.json',
+  'assets/AndroidWave.json',
+  'assets/DynamicGradient.json',
+  'assets/HamburgerArrow.json',
+  'assets/Logo/LogoSmall.json',
+  'assets/LottieLogo1.json',
+  'assets/LottieLogo2.json',
   'assets/Mobilo/A.json',
-  'assets/Mobilo/X.json',
-  'assets/Mobilo/BlinkingCursor.json',
-  'assets/Mobilo/M.json',
-  'assets/Mobilo/L.json',
-  'assets/Mobilo/Y.json',
-  'assets/Mobilo/U.json',
-  'assets/Mobilo/K.json',
-  'assets/Mobilo/R.json',
-  'assets/Mobilo/G.json',
-  'assets/Mobilo/F.json',
-  'assets/Mobilo/S.json',
-  'assets/Mobilo/J.json',
-  'assets/Mobilo/I.json',
-  'assets/Mobilo/E.json',
   'assets/Mobilo/Apostrophe.json',
+  'assets/Mobilo/B.json',
+  'assets/Mobilo/BlinkingCursor.json',
+  'assets/Mobilo/C.json',
+  'assets/Mobilo/Colon.json',
+  'assets/Mobilo/Comma.json',
+  'assets/Mobilo/D.json',
+  'assets/Mobilo/E.json',
+  'assets/Mobilo/F.json',
+  'assets/Mobilo/G.json',
+  'assets/Mobilo/H.json',
+  'assets/Mobilo/I.json',
+  'assets/Mobilo/J.json',
+  'assets/Mobilo/K.json',
+  'assets/Mobilo/L.json',
+  'assets/Mobilo/M.json',
+  'assets/Mobilo/N.json',
+  'assets/Mobilo/O.json',
   'assets/Mobilo/P.json',
   'assets/Mobilo/Q.json',
-  'assets/Mobilo/D.json',
-  'assets/Mobilo/Colon.json',
-  'assets/Mobilo/H.json',
-  'assets/Mobilo/C.json',
+  'assets/Mobilo/R.json',
+  'assets/Mobilo/S.json',
+  'assets/Mobilo/T.json',
+  'assets/Mobilo/U.json',
   'assets/Mobilo/V.json',
-  'assets/Mobilo/Comma.json',
-  'assets/Mobilo/O.json',
-  'assets/Mobilo/Z.json',
-  'assets/Mobilo/N.json',
   'assets/Mobilo/W.json',
-  'assets/Mobilo/B.json',
-  'assets/HamburgerArrow.json',
-  'assets/Tests/Remap.json',
-  'assets/Tests/Airbnb400.zip',
-  'assets/Tests/catrim_converted.json',
-  'assets/Tests/StartEndFrame.json',
-  'assets/Tests/TrackMattes.json',
-  'assets/Tests/DynamicText.json',
-  'assets/Tests/Precomps.json',
-  'assets/Tests/2ParentsMatte.json',
+  'assets/Mobilo/X.json',
+  'assets/Mobilo/Y.json',
+  'assets/Mobilo/Z.json',
   'assets/Tests/2FrameAnimation.json',
-  'assets/Tests/LoopPlayOnce.json',
-  'assets/Tests/bm_converted.json',
-  'assets/Tests/RGBMarker.json',
-  'assets/Tests/WeAccept.json',
-  'assets/Tests/MiterLimit.json',
-  'assets/Tests/dalek.json',
-  'assets/Tests/MaskInv.json',
-  'assets/Tests/MatteTimeStretchScan.json',
-  'assets/Tests/Marker.json',
-  'assets/Tests/TrimPathsInsideAndOutsideGroup.json',
-  'assets/Tests/MaskNone.json',
-  'assets/Tests/Text_Justification_Translate_Scale_Rotation_Text.json',
-  'assets/Tests/InterpolatorLoopBack.json',
-  'assets/Tests/SplitDimensions.json',
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-  'assets/Tests/SolidLayerTransform.json',
-  'assets/Tests/WeAcceptInlineImage.json',
-  'assets/Tests/TrimPaths.json',
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   'assets/Tests/Airbnb.zip',
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-  'assets/Tests/Skew.json',
-  'assets/Tests/GradientFill.json',
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-  'assets/Tests/TimeStretchPrecomp.json',
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   'assets/Tests/Airbnb800.zip',
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-  'assets/LottieLogo2.json',
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-  'assets/LottieLogo1.json',
-  'assets/Logo/LogoSmall.json',
-  'assets/lottiefiles/the_final_frontier.json',
+  'assets/Tests/CheckSwitch.json',
+  'assets/Tests/DifferentPointsCount.json',
+  'assets/Tests/DynamicGradient.json',
+  'assets/Tests/DynamicText.json',
+  'assets/Tests/EllipseDirection.json',
+  'assets/Tests/EndFrame.json',
+  'assets/Tests/Fill.json',
+  'assets/Tests/Font_Text_Justification_Translate_Scale_Rotation_Test.json',
+  'assets/Tests/Frame.json',
+  'assets/Tests/GradientFill.json',
+  'assets/Tests/InterpolatorLoopBack.json',
+  'assets/Tests/KeyframeTypes.json',
+  'assets/Tests/Laugh4.json',
+  'assets/Tests/LoopPlayOnce.json',
+  'assets/Tests/Marker.json',
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+  'assets/Tests/MaskInv.json',
+  'assets/Tests/MaskNone.json',
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+  'assets/Tests/MatteTimeStretchLine.json',
+  'assets/Tests/MatteTimeStretchScan.json',
+  'assets/Tests/MiterLimit.json',
+  'assets/Tests/OverlapShapeWithOpacity.json',
+  'assets/Tests/Parenting.json',
+  'assets/Tests/Precomps.json',
+  'assets/Tests/RGB.json',
+  'assets/Tests/RGBMarker.json',
+  'assets/Tests/Remap.json',
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+  'assets/Tests/Shapes.json',
+  'assets/Tests/Skew.json',
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+  'assets/Tests/Squares.json',
+  'assets/Tests/StarSkew.json',
+  'assets/Tests/StartEndFrame.json',
+  'assets/Tests/Stroke.json',
+  'assets/Tests/TelegramAlphaCompat.json',
+  'assets/Tests/Text.json',
+  'assets/Tests/TextBaseline.json',
+  'assets/Tests/Text_Justification_Translate_Scale_Rotation_Text.json',
+  'assets/Tests/TimeRemapAndStartOffset.json',
+  'assets/Tests/TimeStretch.json',
+  'assets/Tests/TimeStretchMask.json',
+  'assets/Tests/TimeStretchPrecomp.json',
+  'assets/Tests/TrackMattes.json',
+  'assets/Tests/TransformWithoutEndValues.json',
+  'assets/Tests/TrimPaths.json',
+  'assets/Tests/TrimPathsInsideAndOutsideGroup.json',
+  'assets/Tests/WeAccept.json',
+  'assets/Tests/WeAcceptInlineImage.json',
+  'assets/Tests/adrock.json',
+  'assets/Tests/adrock_converted.json',
+  'assets/Tests/august_view_pulse.zip',
+  'assets/Tests/bm.json',
+  'assets/Tests/bm_converted.json',
+  'assets/Tests/catrim.json',
+  'assets/Tests/catrim_converted.json',
+  'assets/Tests/dalek.json',
+  'assets/Tests/dalek_converted.json',
+  'assets/Tests/hd.json',
+  'assets/Tests/map.zip',
+  'assets/TwitterHeartButton.json',
+  'assets/_loading_indicator.json',
+  'assets/bluetoothscanning.json',
+  'assets/example_with_images/data.json',
+  'assets/lf20_w2Afea.json',
+  'assets/lottiefiles/100_percent.json',
+  'assets/lottiefiles/Plane.json',
+  'assets/lottiefiles/StreetByMorning.json',
+  'assets/lottiefiles/___.json',
+  'assets/lottiefiles/a_mountain.json',
+  'assets/lottiefiles/accept_arrows.json',
+  'assets/lottiefiles/airbnb.json',
+  'assets/lottiefiles/android_fingerprint.json',
+  'assets/lottiefiles/angel.zip',
+  'assets/lottiefiles/anima.json',
+  'assets/lottiefiles/animated_graph.json',
+  'assets/lottiefiles/animated_laptop_.json',
+  'assets/lottiefiles/animated_logo.json',
+  'assets/lottiefiles/atm_link.json',
+  'assets/lottiefiles/autoconnect_loading.json',
+  'assets/lottiefiles/ball_&_map.zip',
+  'assets/lottiefiles/banner_animation.json',
+  'assets/lottiefiles/bb8.json',
+  'assets/lottiefiles/bell.json',
+  'assets/lottiefiles/birds.json',
+  'assets/lottiefiles/bitcoin_to_the_moon.json',
+  'assets/lottiefiles/blood_transfusion_kawaii.json',
+  'assets/lottiefiles/bomb.json',
+  'assets/lottiefiles/books.json',
+  'assets/lottiefiles/bootymovin.json',
+  'assets/lottiefiles/bounching_ball.json',
+  'assets/lottiefiles/brain__.json',
+  'assets/lottiefiles/browser.json',
+  'assets/lottiefiles/building_evolution_animation.json',
+  'assets/lottiefiles/camera.json',
+  'assets/lottiefiles/camptravel.zip',
+  'assets/lottiefiles/cancel_button.json',
+  'assets/lottiefiles/cash.json',
+  'assets/lottiefiles/change_to_search_bar.json',
+  'assets/lottiefiles/check_pop.json',
+  'assets/lottiefiles/chinese.json',
+  'assets/lottiefiles/clock.json',
+  'assets/lottiefiles/cloud_disconnection.json',
+  'assets/lottiefiles/code_invite_success.json',
+  'assets/lottiefiles/coding_ape.json',
+  'assets/lottiefiles/coinfall.json',
+  'assets/lottiefiles/colorline.json',
+  'assets/lottiefiles/confusion.json',
+  'assets/lottiefiles/construction_site.json',
+  'assets/lottiefiles/cooking_app.json',
+  'assets/lottiefiles/countdown.json',
+  'assets/lottiefiles/credit_card.json',
+  'assets/lottiefiles/credit_level.json',
+  'assets/lottiefiles/cube_loader.json',
+  'assets/lottiefiles/cubo_livre.json',
+  'assets/lottiefiles/curly_hair_character_loop.json',
+  'assets/lottiefiles/cycle_animation.json',
+  'assets/lottiefiles/day_night_cycle.json',
+  'assets/lottiefiles/day_of_the_dead.json',
+  'assets/lottiefiles/deadpool.json',
+  'assets/lottiefiles/delivery_van.json',
+  'assets/lottiefiles/developer-animation.zip',
+  'assets/lottiefiles/dna_loader.json',
+  'assets/lottiefiles/dog.json',
+  'assets/lottiefiles/done.json',
+  'assets/lottiefiles/download copy.json',
+  'assets/lottiefiles/download.json',
+  'assets/lottiefiles/downloader.json',
+  'assets/lottiefiles/drop.json',
+  'assets/lottiefiles/drop_to_refresh.json',
+  'assets/lottiefiles/edited-landscape.json',
+  'assets/lottiefiles/elephant_trunk_swing.json',
+  'assets/lottiefiles/emoji_shock.json',
+  'assets/lottiefiles/emoji_tongue.json',
+  'assets/lottiefiles/emoji_wink.json',
+  'assets/lottiefiles/empty_status.json',
+  'assets/lottiefiles/estimate.json',
+  'assets/lottiefiles/fab_animate.json',
+  'assets/lottiefiles/fabulous_onboarding_animation.json',
+  'assets/lottiefiles/favourite_app_icon.json',
+  'assets/lottiefiles/file_error.json',
+  'assets/lottiefiles/finance_animation.json',
+  'assets/lottiefiles/fingerprint_scanner.json',
+  'assets/lottiefiles/finish,done.json',
+  'assets/lottiefiles/fish.json',
+  'assets/lottiefiles/flag_of_mexico.json',
+  'assets/lottiefiles/flow.json',
+  'assets/lottiefiles/frog.json',
+  'assets/lottiefiles/funky_chicken.json',
+  'assets/lottiefiles/gaming_pad.json',
+  'assets/lottiefiles/gears.json',
+  'assets/lottiefiles/geometry.zip',
+  'assets/lottiefiles/glow_loading.json',
+  'assets/lottiefiles/gradient_animated_background.json',
+  'assets/lottiefiles/happy birthday.json',
+  'assets/lottiefiles/hardware.json',
+  'assets/lottiefiles/hint_01.json',
+  'assets/lottiefiles/im_thirsty.json',
+  'assets/lottiefiles/immiguide_.json',
+  'assets/lottiefiles/in-app_purchasing.json',
+  'assets/lottiefiles/india.json',
+  'assets/lottiefiles/infinite_rainbow.json',
+  'assets/lottiefiles/intelia_logo_animation.json',
+  'assets/lottiefiles/iphone_x_loading.json',
+  'assets/lottiefiles/jojo_the_bird.json',
+  'assets/lottiefiles/jolly_walker.json',
+  'assets/lottiefiles/judgement.json',
+  'assets/lottiefiles/kod.io_logo_reveal.json',
+  'assets/lottiefiles/la_calavera.json',
+  'assets/lottiefiles/landing_page.json',
+  'assets/lottiefiles/lego_loader.json',
+  'assets/lottiefiles/light.json',
+  'assets/lottiefiles/lightsaber.json',
+  'assets/lottiefiles/little_girl_jumping_-_loader.json',
+  'assets/lottiefiles/loading.json',
+  'assets/lottiefiles/loading_copy.json',
+  'assets/lottiefiles/loading_disc.json',
+  'assets/lottiefiles/loading_semicircle.json',
+  'assets/lottiefiles/location.json',
+  'assets/lottiefiles/location_marker.json',
+  'assets/lottiefiles/location_pin.json',
+  'assets/lottiefiles/lottie_logo_1.json',
+  'assets/lottiefiles/lottiepreview_qr.json',
+  'assets/lottiefiles/mailsent.json',
+  'assets/lottiefiles/man_and_pay_with_credit_card.json',
+  'assets/lottiefiles/map_animation.json',
+  'assets/lottiefiles/material loading.json',
+  'assets/lottiefiles/material_loader.json',
   'assets/lottiefiles/material_loading_2.json',
   'assets/lottiefiles/material_wave_loading.json',
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-  'assets/lottiefiles/rocket.json',
-  'assets/lottiefiles/chinese.json',
-  'assets/lottiefiles/cubo_livre.json',
-  'assets/lottiefiles/slack_app_loader.json',
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-  'assets/lottiefiles/moving_eye.json',
-  'assets/lottiefiles/downloader.json',
-  'assets/lottiefiles/poo_loader.json',
-  'assets/lottiefiles/airbnb.json',
-  'assets/lottiefiles/phonological.json',
-  'assets/lottiefiles/camptravel.zip',
-  'assets/lottiefiles/bounching_ball.json',
-  'assets/lottiefiles/walking.json',
-  'assets/lottiefiles/coding_ape.json',
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-  'assets/lottiefiles/timer_(3_second_loop).json',
-  'assets/lottiefiles/file_error.json',
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-  'assets/lottiefiles/patient_successfully_added.json',
-  'assets/lottiefiles/toggle_switch.json',
-  'assets/lottiefiles/notification_request.json',
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-  'assets/lottiefiles/Plane.json',
-  'assets/lottiefiles/retweet.json',
-  'assets/lottiefiles/blood_transfusion_kawaii.json',
-  'assets/lottiefiles/truecosmos.json',
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-  'assets/lottiefiles/jolly_walker.json',
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-  'assets/lottiefiles/credit_card.json',
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-  'assets/lottiefiles/bell.json',
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-  'assets/lottiefiles/mailsent.json',
-  'assets/lottiefiles/square_drop_loader.json',
-  'assets/lottiefiles/gradient_animated_background.json',
-  'assets/lottiefiles/vr_animation.json',
-  'assets/lottiefiles/rocksauce_title_card.json',
-  'assets/lottiefiles/streetby_test_loading.json',
-  'assets/lottiefiles/hardware.json',
-  'assets/lottiefiles/man_and_pay_with_credit_card.json',
-  'assets/lottiefiles/tractor.json',
-  'assets/lottiefiles/brain__.json',
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-  'assets/lottiefiles/passport.json',
-  'assets/lottiefiles/drop_to_refresh.json',
-  'assets/lottiefiles/penguin.json',
-  'assets/lottiefiles/location_marker.json',
-  'assets/lottiefiles/dna_loader.json',
-  'assets/lottiefiles/geometry.zip',
-  'assets/lottiefiles/pink_drink_machine.json',
-  'assets/lottiefiles/sensor_scan.zip',
-  'assets/lottiefiles/fingerprint_scanner.json',
-  'assets/lottiefiles/play_button.json',
-  'assets/lottiefiles/jojo_the_bird.json',
-  'assets/lottiefiles/cloud_disconnection.json',
-  'assets/lottiefiles/dog.json',
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-  'assets/lottiefiles/curly_hair_character_loop.json',
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-  'assets/lottiefiles/in-app_purchasing.json',
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-  'assets/lottiefiles/splashy_loader.json',
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-  'assets/lottiefiles/change_to_search_bar.json',
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-  'assets/lottiefiles/socar_logo.json',
-  'assets/lottiefiles/fish.json',
-  'assets/lottiefiles/landing_page.json',
-  'assets/lottiefiles/turbine.json',
-  'assets/lottiefiles/ofrenda.json',
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-  'assets/lottiefiles/sky.zip',
-  'assets/lottiefiles/bb8.json',
-  'assets/lottiefiles/powerupp_app_onboard (1).json',
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   'assets/lottiefiles/me_at_office.json',
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-  'assets/lottiefiles/favourite_app_icon.json',
-  'assets/lottiefiles/atm_link.json',
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-  'assets/lottiefiles/preloader.json',
-  'assets/lottiefiles/us.json',
-  'assets/lottiefiles/soda_loader.json',
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+  'assets/lottiefiles/menuButton2.json',
+  'assets/lottiefiles/menu_button_alt.json',
+  'assets/lottiefiles/mindful.json',
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+  'assets/lottiefiles/notification_request.json',
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+  'assets/lottiefiles/on_off_settings_switch.json',
+  'assets/lottiefiles/pagado.json',
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+  'assets/lottiefiles/panel2d.json',
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+  'assets/lottiefiles/peli-canon.json',
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+  'assets/lottiefiles/pencil_write.json',
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+  'assets/lottiefiles/poo_loader.json',
+  'assets/lottiefiles/powerupp_app_onboard (1).json',
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+  'assets/lottiefiles/print.json',
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+  'assets/lottiefiles/star 2.json',
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+  'assets/lottiefiles/tigerobo_demo.json',
+  'assets/lottiefiles/timer_(3_second_loop).json',
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+  'assets/lottiefiles/toggle_switch.json',
+  'assets/lottiefiles/touch_id.json',
+  'assets/lottiefiles/tractor.json',
+  'assets/lottiefiles/tractor_animation.json',
+  'assets/lottiefiles/trail_loading.json',
   'assets/lottiefiles/trophy.json',
   'assets/lottiefiles/trophy_animation.zip',
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-  'assets/lottiefiles/payme.json',
-  'assets/lottiefiles/lego_loader.json',
-  'assets/lottiefiles/deadpool.json',
-  'assets/lottiefiles/updating_map.json',
-  'assets/lottiefiles/elephant_trunk_swing.json',
-  'assets/lottiefiles/lottie_logo_1.json',
-  'assets/lottiefiles/tigerobo_demo.json',
-  'assets/lottiefiles/100_percent.json',
-  'assets/lottiefiles/flow.json',
-  'assets/lottiefiles/hint_01.json',
-  'assets/lottiefiles/moving bus.json',
-  'assets/lottiefiles/light.json',
-  'assets/lottiefiles/little_girl_jumping_-_loader.json',
-  'assets/lottiefiles/red_pocket_pop_up.json',
-  'assets/lottiefiles/star 2.json',
-  'assets/lottiefiles/playing.json',
-  'assets/lottiefiles/motorcycle.json',
-  'assets/lottiefiles/submit button.json',
-  'assets/lottiefiles/infinite_rainbow.json',
-  'assets/lottiefiles/print.json',
-  'assets/lottiefiles/powerupp_app_onboard.json',
-  'assets/lottiefiles/cycle_animation.json',
-  'assets/lottiefiles/vigilance_camera.json',
-  'assets/lottiefiles/code_invite_success.json',
-  'assets/lottiefiles/walking_arrow.json',
-  'assets/lottiefiles/pen_tool_loop.json',
-  'assets/lottiefiles/mnemonics.json',
-  'assets/lottiefiles/bootymovin.json',
-  'assets/lottiefiles/happy birthday.json',
-  'assets/lottiefiles/books.json',
-  'assets/lottiefiles/angel.zip',
-  'assets/lottiefiles/building_evolution_animation.json',
-  'assets/lottiefiles/edited-landscape.json',
-  'assets/lottiefiles/spinner loading.json',
-  'assets/lottiefiles/accept_arrows.json',
-  'assets/lottiefiles/mindful.json',
-  'assets/lottiefiles/gaming_pad.json',
-  'assets/lottiefiles/menuButton2.json',
-  'assets/lottiefiles/wolf_peek.json',
-  'assets/lottiefiles/security_token_roundtable.zip',
-  'assets/lottiefiles/day_night_cycle.json',
-  'assets/lottiefiles/cancel_button.json',
-  'assets/lottiefiles/menu_button_alt.json',
-  'assets/lottiefiles/animated_graph.json',
-  'assets/lottiefiles/point.json',
-  'assets/lottiefiles/search_button.json',
-  'assets/lottiefiles/a_mountain.json',
-  'assets/lottiefiles/on_off_settings_switch.json',
+  'assets/lottiefiles/truecosmos.json',
+  'assets/lottiefiles/turbine.json',
   'assets/lottiefiles/typing dot.json',
-  'assets/lottiefiles/kod.io_logo_reveal.json',
-  'assets/lottiefiles/___.json',
-  'assets/lottiefiles/animated_laptop_.json',
-  'assets/lottiefiles/simple_loader.json',
-  'assets/lottiefiles/personal_character.json',
-  'assets/lottiefiles/check_pop.json',
-  'assets/lottiefiles/xuanwheel_logo.json',
-  'assets/lottiefiles/lightsaber.json',
-  'assets/lottiefiles/peli-canon.json',
-  'assets/lottiefiles/map_animation.json',
-  'assets/lottiefiles/funky_chicken.json',
-  'assets/lottiefiles/ball_&_map.zip',
-  'assets/lottiefiles/snowcation.json',
-  'assets/lottiefiles/estimate.json',
-  'assets/lottiefiles/delivery_van.json',
-  'assets/lottiefiles/spacehub.json',
-  'assets/lottiefiles/material loading.json',
-  'assets/lottiefiles/swipe_right_indicator.json',
-  'assets/lottiefiles/pagination.json',
-  'assets/lottiefiles/confusion.json',
-  'assets/lottiefiles/coinfall.json',
-  'assets/lottiefiles/fabulous_onboarding_animation.json',
-  'assets/lottiefiles/win_result_2.json',
-  'assets/lottiefiles/scan.json',
-  'assets/lottiefiles/la_calavera.json',
-  'assets/lottiefiles/drop.json',
-  'assets/lottiefiles/scan_qr_code_success.json',
-  'assets/lottiefiles/loading_semicircle.json',
-  'assets/lottiefiles/immiguide_.json',
-  'assets/lottiefiles/vr_sickness.json',
-  'assets/lottiefiles/cash.json',
-  'assets/lottiefiles/ph_onboarding_.json',
+  'assets/lottiefiles/uk.json',
+  'assets/lottiefiles/updating_map.json',
+  'assets/lottiefiles/us.json',
   'assets/lottiefiles/video_cam.json',
-  'assets/lottiefiles/material_loader.json',
-  'assets/lottiefiles/toggle.json',
-  'assets/lottiefiles/browser.json',
-  'assets/lottiefiles/day_of_the_dead.json',
-  'assets/lottiefiles/cube_loader.json',
-  'assets/lottiefiles/washing_machine.json',
+  'assets/lottiefiles/vigilance_camera.json',
+  'assets/lottiefiles/volume_indicator.json',
+  'assets/lottiefiles/volume_shake_indicator.json',
+  'assets/lottiefiles/vr_animation.json',
+  'assets/lottiefiles/vr_sickness.json',
+  'assets/lottiefiles/walking.json',
+  'assets/lottiefiles/walking_arrow.json',
   'assets/lottiefiles/wallet recharge.json',
-  'assets/lottiefiles/pencil_write.json',
-  'assets/lottiefiles/progress_bar.json',
-  'assets/lottiefiles/iphone_x_loading.json',
-  'assets/lottiefiles/bomb.json',
-  'assets/lottiefiles/swipe_menu.json',
-  'assets/lottiefiles/trail_loading.json',
-  'assets/lottiefiles/StreetByMorning.json',
-  'assets/lottiefiles/cooking_app.json',
-  'assets/lottiefiles/lottiepreview_qr.json',
-  'assets/lottiefiles/touch_id.json',
-  'assets/lf20_w2Afea.json',
+  'assets/lottiefiles/washing_machine.json',
+  'assets/lottiefiles/win_result_2.json',
+  'assets/lottiefiles/wolf_peek.json',
+  'assets/lottiefiles/x_pop.json',
+  'assets/lottiefiles/xamarin_logo_2.json',
+  'assets/lottiefiles/xuanwheel_logo.json',
+  'assets/lottiefiles/yoga_carpet.json',
+  'assets/lottiefiles/youtube_icon_reveal.json',
+  'assets/playing.json',
+  'assets/weather/_hurricane.json',
+  'assets/weather/fog.json',
+  'assets/weather/hurricane.json',
+  'assets/weather/thunder-storm.json',
+  'assets/weather/tornado.json',
+  'assets/weather/windy.json',
 ];

example/macos/Flutter/Flutter-Debug.xcconfig

@@ -1 +1,2 @@
+#include "Pods/Target Support Files/Pods-Runner/Pods-Runner.debug.xcconfig"
 #include "ephemeral/Flutter-Generated.xcconfig"

example/macos/Flutter/Flutter-Release.xcconfig

@@ -1 +1,2 @@
+#include "Pods/Target Support Files/Pods-Runner/Pods-Runner.release.xcconfig"
 #include "ephemeral/Flutter-Generated.xcconfig"

example/macos/Flutter/GeneratedPluginRegistrant.swift

@@ -5,6 +5,8 @@
 import FlutterMacOS
 import Foundation
 
+import path_provider_macos
 
 func RegisterGeneratedPlugins(registry: FlutterPluginRegistry) {
+  PathProviderPlugin.register(with: registry.registrar(forPlugin: "PathProviderPlugin"))
 }

example/macos/Podfile

@@ -0,0 +1,82 @@
+platform :osx, '10.11'
+
+# CocoaPods analytics sends network stats synchronously affecting flutter build latency.
+ENV['COCOAPODS_DISABLE_STATS'] = 'true'
+
+project 'Runner', {
+  'Debug' => :debug,
+  'Profile' => :release,
+  'Release' => :release,
+}
+
+def parse_KV_file(file, separator='=')
+  file_abs_path = File.expand_path(file)
+  if !File.exists? file_abs_path
+    return [];
+  end
+  pods_ary = []
+  skip_line_start_symbols = ["#", "/"]
+  File.foreach(file_abs_path) { |line|
+      next if skip_line_start_symbols.any? { |symbol| line =~ /^\s*#{symbol}/ }
+      plugin = line.split(pattern=separator)
+      if plugin.length == 2
+        podname = plugin[0].strip()
+        path = plugin[1].strip()
+        podpath = File.expand_path("#{path}", file_abs_path)
+        pods_ary.push({:name => podname, :path => podpath});
+      else
+        puts "Invalid plugin specification: #{line}"
+      end
+  }
+  return pods_ary
+end
+
+def pubspec_supports_macos(file)
+  file_abs_path = File.expand_path(file)
+  if !File.exists? file_abs_path
+    return false;
+  end
+  File.foreach(file_abs_path) { |line|
+    return true if line =~ /^\s*macos:/
+  }
+  return false
+end
+
+target 'Runner' do
+  use_frameworks!
+  use_modular_headers!
+
+  # Prepare symlinks folder. We use symlinks to avoid having Podfile.lock
+  # referring to absolute paths on developers' machines.
+  ephemeral_dir = File.join('Flutter', 'ephemeral')
+  symlink_dir = File.join(ephemeral_dir, '.symlinks')
+  symlink_plugins_dir = File.join(symlink_dir, 'plugins')
+  system("rm -rf #{symlink_dir}")
+  system("mkdir -p #{symlink_plugins_dir}")
+
+  # Flutter Pods
+  generated_xcconfig = parse_KV_file(File.join(ephemeral_dir, 'Flutter-Generated.xcconfig'))
+  if generated_xcconfig.empty?
+    puts "Flutter-Generated.xcconfig must exist. If you're running pod install manually, make sure flutter packages get is executed first."
+  end
+  generated_xcconfig.map { |p|
+    if p[:name] == 'FLUTTER_FRAMEWORK_DIR'
+      symlink = File.join(symlink_dir, 'flutter')
+      File.symlink(File.dirname(p[:path]), symlink)
+      pod 'FlutterMacOS', :path => File.join(symlink, File.basename(p[:path]))
+    end
+  }
+
+  # Plugin Pods
+  plugin_pods = parse_KV_file('../.flutter-plugins')
+  plugin_pods.map { |p|
+    symlink = File.join(symlink_plugins_dir, p[:name])
+    File.symlink(p[:path], symlink)
+    if pubspec_supports_macos(File.join(symlink, 'pubspec.yaml'))
+      pod p[:name], :path => File.join(symlink, 'macos')
+    end
+  }
+end
+
+# Prevent Cocoapods from embedding a second Flutter framework and causing an error with the new Xcode build system.
+install! 'cocoapods', :disable_input_output_paths => true

example/macos/Podfile.lock

@@ -0,0 +1,27 @@
+PODS:
+  - FlutterMacOS (1.0.0)
+  - path_provider (0.0.1)
+  - path_provider_macos (0.0.1):
+    - FlutterMacOS
+
+DEPENDENCIES:
+  - FlutterMacOS (from `Flutter/ephemeral/.symlinks/flutter/darwin-x64-profile`)
+  - path_provider (from `Flutter/ephemeral/.symlinks/plugins/path_provider/macos`)
+  - path_provider_macos (from `Flutter/ephemeral/.symlinks/plugins/path_provider_macos/macos`)
+
+EXTERNAL SOURCES:
+  FlutterMacOS:
+    :path: Flutter/ephemeral/.symlinks/flutter/darwin-x64-profile
+  path_provider:
+    :path: Flutter/ephemeral/.symlinks/plugins/path_provider/macos
+  path_provider_macos:
+    :path: Flutter/ephemeral/.symlinks/plugins/path_provider_macos/macos
+
+SPEC CHECKSUMS:
+  FlutterMacOS: 15bea8a44d2fa024068daa0140371c020b4b6ff9
+  path_provider: e0848572d1d38b9a7dd099e79cf83f5b7e2cde9f
+  path_provider_macos: a0a3fd666cb7cd0448e936fb4abad4052961002b
+
+PODFILE CHECKSUM: d8ba9b3e9e93c62c74a660b46c6fcb09f03991a7
+
+COCOAPODS: 1.9.1

example/macos/Runner.xcodeproj/project.pbxproj

@@ -30,6 +30,7 @@
 		33D1A10522148B93006C7A3E /* FlutterMacOS.framework in Bundle Framework */ = {isa = PBXBuildFile; fileRef = 33D1A10322148B71006C7A3E /* FlutterMacOS.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
 		D73912F022F37F9E000D13A0 /* App.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = D73912EF22F37F9E000D13A0 /* App.framework */; };
 		D73912F222F3801D000D13A0 /* App.framework in Bundle Framework */ = {isa = PBXBuildFile; fileRef = D73912EF22F37F9E000D13A0 /* App.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
+		F03CC91740A974D36C2A6384 /* Pods_Runner.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 0BC6FF5FCD90624533CC60DB /* Pods_Runner.framework */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXContainerItemProxy section */
@@ -58,9 +59,12 @@
 /* End PBXCopyFilesBuildPhase section */
 
 /* Begin PBXFileReference section */
+		07433C750748E9780BC34A17 /* Pods-Runner.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-Runner.release.xcconfig"; path = "Target Support Files/Pods-Runner/Pods-Runner.release.xcconfig"; sourceTree = "<group>"; };
+		0BC6FF5FCD90624533CC60DB /* Pods_Runner.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = Pods_Runner.framework; sourceTree = BUILT_PRODUCTS_DIR; };
+		10F2CF3D6900CD627E92FAFB /* Pods-Runner.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-Runner.debug.xcconfig"; path = "Target Support Files/Pods-Runner/Pods-Runner.debug.xcconfig"; sourceTree = "<group>"; };
 		333000ED22D3DE5D00554162 /* Warnings.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; path = Warnings.xcconfig; sourceTree = "<group>"; };
 		335BBD1A22A9A15E00E9071D /* GeneratedPluginRegistrant.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = GeneratedPluginRegistrant.swift; sourceTree = "<group>"; };
-		33CC10ED2044A3C60003C045 /* example.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = "example.app"; sourceTree = BUILT_PRODUCTS_DIR; };
+		33CC10ED2044A3C60003C045 /* example.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = example.app; sourceTree = BUILT_PRODUCTS_DIR; };
 		33CC10F02044A3C60003C045 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
 		33CC10F22044A3C60003C045 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; name = Assets.xcassets; path = Runner/Assets.xcassets; sourceTree = "<group>"; };
 		33CC10F52044A3C60003C045 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.xib; name = Base; path = Base.lproj/MainMenu.xib; sourceTree = "<group>"; };
@@ -73,6 +77,7 @@
 		33E51913231747F40026EE4D /* DebugProfile.entitlements */ = {isa = PBXFileReference; lastKnownFileType = text.plist.entitlements; path = DebugProfile.entitlements; sourceTree = "<group>"; };
 		33E51914231749380026EE4D /* Release.entitlements */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.entitlements; path = Release.entitlements; sourceTree = "<group>"; };
 		33E5194F232828860026EE4D /* AppInfo.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; path = AppInfo.xcconfig; sourceTree = "<group>"; };
+		5B4C0E87024EC2686CA05E23 /* Pods-Runner.profile.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-Runner.profile.xcconfig"; path = "Target Support Files/Pods-Runner/Pods-Runner.profile.xcconfig"; sourceTree = "<group>"; };
 		7AFA3C8E1D35360C0083082E /* Release.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; path = Release.xcconfig; sourceTree = "<group>"; };
 		9740EEB21CF90195004384FC /* Debug.xcconfig */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.xcconfig; path = Debug.xcconfig; sourceTree = "<group>"; };
 		D73912EF22F37F9E000D13A0 /* App.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = App.framework; path = Flutter/ephemeral/App.framework; sourceTree = SOURCE_ROOT; };
@@ -85,6 +90,7 @@
 			files = (
 				D73912F022F37F9E000D13A0 /* App.framework in Frameworks */,
 				33D1A10422148B71006C7A3E /* FlutterMacOS.framework in Frameworks */,
+				F03CC91740A974D36C2A6384 /* Pods_Runner.framework in Frameworks */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -109,6 +115,7 @@
 				33CEB47122A05771004F2AC0 /* Flutter */,
 				33CC10EE2044A3C60003C045 /* Products */,
 				D73912EC22F37F3D000D13A0 /* Frameworks */,
+				E1769B635E3D601E790C66A4 /* Pods */,
 			);
 			sourceTree = "<group>";
 		};
@@ -160,10 +167,22 @@
 		D73912EC22F37F3D000D13A0 /* Frameworks */ = {
 			isa = PBXGroup;
 			children = (
+				0BC6FF5FCD90624533CC60DB /* Pods_Runner.framework */,
 			);
 			name = Frameworks;
 			sourceTree = "<group>";
 		};
+		E1769B635E3D601E790C66A4 /* Pods */ = {
+			isa = PBXGroup;
+			children = (
+				10F2CF3D6900CD627E92FAFB /* Pods-Runner.debug.xcconfig */,
+				07433C750748E9780BC34A17 /* Pods-Runner.release.xcconfig */,
+				5B4C0E87024EC2686CA05E23 /* Pods-Runner.profile.xcconfig */,
+			);
+			name = Pods;
+			path = Pods;
+			sourceTree = "<group>";
+		};
 /* End PBXGroup section */
 
 /* Begin PBXNativeTarget section */
@@ -171,11 +190,13 @@
 			isa = PBXNativeTarget;
 			buildConfigurationList = 33CC10FB2044A3C60003C045 /* Build configuration list for PBXNativeTarget "Runner" */;
 			buildPhases = (
+				66E2D04933C70A4FC0890B06 /* [CP] Check Pods Manifest.lock */,
 				33CC10E92044A3C60003C045 /* Sources */,
 				33CC10EA2044A3C60003C045 /* Frameworks */,
 				33CC10EB2044A3C60003C045 /* Resources */,
 				33CC110E2044A8840003C045 /* Bundle Framework */,
 				3399D490228B24CF009A79C7 /* ShellScript */,
+				F22406C58ADF93CA802196B1 /* [CP] Embed Pods Frameworks */,
 			);
 			buildRules = (
 			);
@@ -282,6 +303,43 @@
 			shellPath = /bin/sh;
 			shellScript = "\"$FLUTTER_ROOT\"/packages/flutter_tools/bin/macos_assemble.sh\ntouch Flutter/ephemeral/tripwire\n";
 		};
+		66E2D04933C70A4FC0890B06 /* [CP] Check Pods Manifest.lock */ = {
+			isa = PBXShellScriptBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			inputFileListPaths = (
+			);
+			inputPaths = (
+				"${PODS_PODFILE_DIR_PATH}/Podfile.lock",
+				"${PODS_ROOT}/Manifest.lock",
+			);
+			name = "[CP] Check Pods Manifest.lock";
+			outputFileListPaths = (
+			);
+			outputPaths = (
+				"$(DERIVED_FILE_DIR)/Pods-Runner-checkManifestLockResult.txt",
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+			shellPath = /bin/sh;
+			shellScript = "diff \"${PODS_PODFILE_DIR_PATH}/Podfile.lock\" \"${PODS_ROOT}/Manifest.lock\" > /dev/null\nif [ $? != 0 ] ; then\n    # print error to STDERR\n    echo \"error: The sandbox is not in sync with the Podfile.lock. Run 'pod install' or update your CocoaPods installation.\" >&2\n    exit 1\nfi\n# This output is used by Xcode 'outputs' to avoid re-running this script phase.\necho \"SUCCESS\" > \"${SCRIPT_OUTPUT_FILE_0}\"\n";
+			showEnvVarsInLog = 0;
+		};
+		F22406C58ADF93CA802196B1 /* [CP] Embed Pods Frameworks */ = {
+			isa = PBXShellScriptBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			inputFileListPaths = (
+			);
+			name = "[CP] Embed Pods Frameworks";
+			outputFileListPaths = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+			shellPath = /bin/sh;
+			shellScript = "\"${PODS_ROOT}/Target Support Files/Pods-Runner/Pods-Runner-frameworks.sh\"\n";
+			showEnvVarsInLog = 0;
+		};
 /* End PBXShellScriptBuildPhase section */
 
 /* Begin PBXSourcesBuildPhase section */

example/macos/Runner.xcworkspace/contents.xcworkspacedata

@@ -4,4 +4,7 @@
    <FileRef
       location = "group:Runner.xcodeproj">
    </FileRef>
+   <FileRef
+      location = "group:Pods/Pods.xcodeproj">
+   </FileRef>
 </Workspace>

example/macos/Runner/DebugProfile.entitlements

@@ -4,8 +4,14 @@
 <dict>
 	<key>com.apple.security.app-sandbox</key>
 	<true/>
+	<key>com.apple.security.assets.pictures.read-write</key>
+	<true/>
 	<key>com.apple.security.cs.allow-jit</key>
 	<true/>
+	<key>com.apple.security.files.downloads.read-write</key>
+	<true/>
+	<key>com.apple.security.files.user-selected.read-write</key>
+	<true/>
 	<key>com.apple.security.network.client</key>
 	<true/>
 	<key>com.apple.security.network.server</key>

example/macos/Runner/Release.entitlements

@@ -4,6 +4,12 @@
 <dict>
 	<key>com.apple.security.app-sandbox</key>
 	<true/>
+	<key>com.apple.security.assets.pictures.read-write</key>
+	<true/>
+	<key>com.apple.security.files.downloads.read-write</key>
+	<true/>
+	<key>com.apple.security.files.user-selected.read-write</key>
+	<true/>
 	<key>com.apple.security.network.client</key>
 	<true/>
 	<key>com.apple.security.network.server</key>

example/pubspec.lock

@@ -7,42 +7,56 @@ packages:
       name: archive
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.11"
+    version: "2.0.13"
   args:
     dependency: transitive
     description:
       name: args
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.5.2"
+    version: "1.6.0"
   async:
     dependency: transitive
     description:
       name: async
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.4.0"
+    version: "2.5.0-nullsafety.1"
   boolean_selector:
     dependency: transitive
     description:
       name: boolean_selector
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.5"
+    version: "2.1.0-nullsafety.1"
+  characters:
+    dependency: transitive
+    description:
+      name: characters
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.0-nullsafety.3"
   charcode:
     dependency: transitive
     description:
       name: charcode
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.2"
+    version: "1.2.0-nullsafety.1"
+  clock:
+    dependency: transitive
+    description:
+      name: clock
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.0-nullsafety.1"
   collection:
     dependency: transitive
     description:
       name: collection
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.14.11"
+    version: "1.15.0-nullsafety.3"
   convert:
     dependency: transitive
     description:
@@ -56,24 +70,73 @@ packages:
       name: crypto
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.3"
+    version: "2.1.5"
+  fake_async:
+    dependency: transitive
+    description:
+      name: fake_async
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.2.0-nullsafety.1"
+  ffi:
+    dependency: transitive
+    description:
+      name: ffi
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.1.3"
+  file:
+    dependency: transitive
+    description:
+      name: file
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "5.2.1"
   flutter:
     dependency: "direct main"
     description: flutter
     source: sdk
     version: "0.0.0"
+  flutter_colorpicker:
+    dependency: "direct main"
+    description:
+      name: flutter_colorpicker
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.3.4"
   flutter_test:
     dependency: "direct dev"
     description: flutter
     source: sdk
     version: "0.0.0"
-  image:
-    dependency: transitive
+  golden_toolkit:
+    dependency: "direct dev"
     description:
-      name: image
+      name: golden_toolkit
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.4"
+    version: "0.6.0"
+  http:
+    dependency: "direct main"
+    description:
+      name: http
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.12.2"
+  http_parser:
+    dependency: transitive
+    description:
+      name: http_parser
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.1.4"
+  intl:
+    dependency: transitive
+    description:
+      name: intl
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.16.1"
   logging:
     dependency: transitive
     description:
@@ -87,49 +150,91 @@ packages:
       path: ".."
       relative: true
     source: path
-    version: "0.2.1"
+    version: "0.7.0"
   matcher:
     dependency: transitive
     description:
       name: matcher
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.12.6"
+    version: "0.12.10-nullsafety.1"
   meta:
     dependency: transitive
     description:
       name: meta
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.8"
+    version: "1.3.0-nullsafety.3"
   path:
     dependency: transitive
     description:
       name: path
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.6.4"
+    version: "1.8.0-nullsafety.1"
+  path_provider:
+    dependency: "direct main"
+    description:
+      name: path_provider
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.6.21"
+  path_provider_linux:
+    dependency: transitive
+    description:
+      name: path_provider_linux
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.0.1+2"
+  path_provider_macos:
+    dependency: transitive
+    description:
+      name: path_provider_macos
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.0.4+4"
+  path_provider_platform_interface:
+    dependency: transitive
+    description:
+      name: path_provider_platform_interface
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.3"
+  path_provider_windows:
+    dependency: transitive
+    description:
+      name: path_provider_windows
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.0.4+1"
   pedantic:
-    dependency: "direct overridden"
+    dependency: transitive
     description:
       name: pedantic
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.9.0"
-  petitparser:
+    version: "1.9.2"
+  platform:
     dependency: transitive
     description:
-      name: petitparser
+      name: platform
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.4.0"
-  quiver:
+    version: "2.2.1"
+  plugin_platform_interface:
     dependency: transitive
     description:
-      name: quiver
+      name: plugin_platform_interface
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.5"
+    version: "1.0.3"
+  process:
+    dependency: transitive
+    description:
+      name: process
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.0.13"
   sky_engine:
     dependency: transitive
     description: flutter
@@ -141,62 +246,70 @@ packages:
       name: source_span
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.5.5"
+    version: "1.8.0-nullsafety.2"
   stack_trace:
     dependency: transitive
     description:
       name: stack_trace
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.9.3"
+    version: "1.10.0-nullsafety.1"
   stream_channel:
     dependency: transitive
     description:
       name: stream_channel
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.0"
+    version: "2.1.0-nullsafety.1"
   string_scanner:
     dependency: transitive
     description:
       name: string_scanner
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.5"
+    version: "1.1.0-nullsafety.1"
   term_glyph:
     dependency: transitive
     description:
       name: term_glyph
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.0"
+    version: "1.2.0-nullsafety.1"
   test_api:
     dependency: transitive
     description:
       name: test_api
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.2.11"
+    version: "0.2.19-nullsafety.2"
   typed_data:
     dependency: transitive
     description:
       name: typed_data
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.6"
+    version: "1.3.0-nullsafety.3"
   vector_math:
     dependency: transitive
     description:
       name: vector_math
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.8"
-  xml:
+    version: "2.1.0-nullsafety.3"
+  win32:
     dependency: transitive
     description:
-      name: xml
+      name: win32
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.5.0"
+    version: "1.7.3"
+  xdg_directories:
+    dependency: transitive
+    description:
+      name: xdg_directories
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.1.2"
 sdks:
-  dart: ">=2.7.0 <3.0.0"
+  dart: ">=2.10.0-110 <2.11.0"
+  flutter: ">=1.12.13+hotfix.5 <2.0.0"

example/pubspec.yaml

@@ -8,15 +8,16 @@ environment:
 dependencies:
   flutter:
     sdk: flutter
+  flutter_colorpicker:
+  http:
   lottie:
     path: ../
+  path_provider:
 
 dev_dependencies:
   flutter_test:
     sdk: flutter
-
-dependency_overrides:
-  pedantic: ^1.9.0
+  golden_toolkit:
 
 # For information on the generic Dart part of this file, see the
 # following page: https://dart.dev/tools/pub/pubspec
@@ -33,34 +34,29 @@ flutter:
     - assets/Logo/
     - assets/Images/
     - assets/Images/WeAccept/
+    - assets/weather/
+    - assets/example_with_images/
+    - assets/example_with_images/images/
 
-  # To add assets to your package, add an assets section, like this:
-  # assets:
-  #  - images/a_dot_burr.jpeg
-  #  - images/a_dot_ham.jpeg
-  #
-  # For details regarding assets in packages, see
-  # https://flutter.dev/assets-and-images/#from-packages
-  #
-  # An image asset can refer to one or more resolution-specific "variants", see
-  # https://flutter.dev/assets-and-images/#resolution-aware.
-
-  # To add custom fonts to your package, add a fonts section here,
-  # in this "flutter" section. Each entry in this list should have a
-  # "family" key with the font family name, and a "fonts" key with a
-  # list giving the asset and other descriptors for the font. For
-  # example:
-  # fonts:
-  #   - family: Schyler
-  #     fonts:
-  #       - asset: fonts/Schyler-Regular.ttf
-  #       - asset: fonts/Schyler-Italic.ttf
-  #         style: italic
-  #   - family: Trajan Pro
-  #     fonts:
-  #       - asset: fonts/TrajanPro.ttf
-  #       - asset: fonts/TrajanPro_Bold.ttf
-  #         weight: 700
-  #
-  # For details regarding fonts in packages, see
-  # https://flutter.dev/custom-fonts/#from-packages
+  fonts:
+    - family: Comic Neue
+      fonts:
+        - asset: assets/fonts/Comic-Neue.ttf
+    - family: Helvetica
+      fonts:
+        - asset: assets/fonts/Helvetica.ttf
+    - family: Helvetica Neue
+      fonts:
+        - asset: assets/fonts/Helvetica-Neue.ttf
+    - family: Open Sans
+      fonts:
+        - asset: assets/fonts/Open-Sans.ttf
+    - family: PT Serif
+      fonts:
+        - asset: assets/fonts/PT-Serif.ttf
+    - family: Roboto
+      fonts:
+        - asset: assets/fonts/Roboto.ttf
+    - family: Noto Emoji
+      fonts:
+        - asset: assets/fonts/NotoEmoji-Regular.ttf

example/test/dynamic_properties_test.dart

@@ -0,0 +1,346 @@
+import 'dart:io';
+import 'dart:ui';
+import 'package:flutter/material.dart';
+import 'package:flutter/painting.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:lottie/lottie.dart';
+import 'utils.dart';
+
+void main() {
+  LottieComposition composition;
+
+  setUpAll(() async {
+    composition = await LottieComposition.fromBytes(
+        File('assets/Tests/Shapes.json').readAsBytesSync());
+  });
+
+  void testGolden(String description, ValueDelegate delegate,
+      {double progress}) async {
+    var screenshotName = description
+        .toLowerCase()
+        .replaceAll(RegExp('[^a-z0-9 ]'), '')
+        .replaceAll(' ', '_');
+
+    testWidgets(description, (tester) async {
+      var animation =
+          AnimationController(vsync: tester, duration: composition.duration);
+      if (progress != null) {
+        animation.value = progress;
+      }
+
+      await tester.pumpWidget(
+        Lottie(
+          composition: composition,
+          controller: animation,
+          delegates: LottieDelegates(values: [delegate]),
+          addRepaintBoundary: false,
+        ),
+      );
+      await tester.pump();
+      await expectLater(find.byType(Lottie),
+          matchesGoldenFile('goldens/dynamic/$screenshotName.png'));
+
+      if (progress == null || progress == 0) {
+        await tester.pumpWidget(
+          Lottie(
+            composition: composition,
+            controller: animation,
+            delegates: LottieDelegates(values: []),
+            addRepaintBoundary: false,
+          ),
+        );
+        await tester.pump();
+        await expectLater(find.byType(Lottie),
+            matchesGoldenFile('goldens/dynamic_without_delegate.png'));
+      }
+    });
+  }
+
+  testGolden(
+    'Fill color (Green)',
+    ValueDelegate.color(['Shape Layer 1', 'Rectangle', 'Fill 1'],
+        value: Colors.green),
+  );
+
+  testGolden(
+    'Fill color (Yellow)',
+    ValueDelegate.color(['Shape Layer 1', 'Rectangle', 'Fill 1'],
+        value: Colors.yellow),
+  );
+
+  testGolden(
+    'Fill opacity',
+    ValueDelegate.opacity(['Shape Layer 1', 'Rectangle', 'Fill 1'], value: 50),
+  );
+
+  testGolden(
+    'Stroke color',
+    ValueDelegate.strokeColor(['Shape Layer 1', 'Rectangle', 'Stroke 1'],
+        value: Colors.green),
+  );
+
+  testGolden(
+    'Stroke width',
+    ValueDelegate.strokeWidth(['Shape Layer 1', 'Rectangle', 'Stroke 1'],
+        value: 50),
+  );
+
+  testGolden(
+    'Stroke opacity',
+    ValueDelegate.opacity(['Shape Layer 1', 'Rectangle', 'Stroke 1'],
+        value: 50),
+  );
+
+  testGolden(
+    'Transform anchor point',
+    ValueDelegate.transformAnchorPoint(['Shape Layer 1', 'Rectangle'],
+        value: Offset(20, 20)),
+  );
+
+  testGolden(
+    'Transform position',
+    ValueDelegate.transformPosition(['Shape Layer 1', 'Rectangle'],
+        value: Offset(20, 20)),
+  );
+
+  testGolden(
+    'Transform position (relative)',
+    ValueDelegate.transformPosition(['Shape Layer 1', 'Rectangle'],
+        relative: Offset(20, 20)),
+  );
+
+  testGolden(
+    'Transform opacity',
+    ValueDelegate.transformOpacity(['Shape Layer 1', 'Rectangle'], value: 50),
+  );
+
+  testGolden(
+    'Transform rotation',
+    ValueDelegate.transformRotation(['Shape Layer 1', 'Rectangle'], value: 45),
+  );
+
+  testGolden(
+    'Transform scale',
+    ValueDelegate.transformScale(['Shape Layer 1', 'Rectangle'],
+        value: Offset(0.5, 0.5)),
+  );
+
+  testGolden(
+    'Rectangle corner roundedness',
+    ValueDelegate.cornerRadius(
+        ['Shape Layer 1', 'Rectangle', 'Rectangle Path 1'],
+        value: 7),
+  );
+
+  testGolden(
+    'Rectangle position',
+    ValueDelegate.position(['Shape Layer 1', 'Rectangle', 'Rectangle Path 1'],
+        relative: Offset(20, 20)),
+  );
+
+  testGolden(
+    'Rectangle size',
+    ValueDelegate.rectangleSize(
+        ['Shape Layer 1', 'Rectangle', 'Rectangle Path 1'],
+        relative: Offset(30, 40)),
+  );
+
+  testGolden(
+    'Ellipse position',
+    ValueDelegate.position(['Shape Layer 1', 'Ellipse', 'Ellipse Path 1'],
+        relative: Offset(20, 20)),
+  );
+
+  testGolden(
+    'Ellipse size',
+    ValueDelegate.ellipseSize(['Shape Layer 1', 'Ellipse', 'Ellipse Path 1'],
+        relative: Offset(40, 60)),
+  );
+
+  testGolden(
+    'Star points',
+    ValueDelegate.polystarPoints(['Shape Layer 1', 'Star', 'Polystar Path 1'],
+        value: 8),
+  );
+
+  testGolden(
+    'Star rotation',
+    ValueDelegate.polystarRotation(['Shape Layer 1', 'Star', 'Polystar Path 1'],
+        value: 10),
+  );
+
+  testGolden(
+    'Star position',
+    ValueDelegate.position(['Shape Layer 1', 'Star', 'Polystar Path 1'],
+        relative: Offset(20, 20)),
+  );
+
+  testGolden(
+    'Star inner radius',
+    ValueDelegate.polystarInnerRadius(
+        ['Shape Layer 1', 'Star', 'Polystar Path 1'],
+        value: 10),
+  );
+
+  testGolden(
+    'Star inner roundedness',
+    ValueDelegate.polystarInnerRoundedness(
+        ['Shape Layer 1', 'Star', 'Polystar Path 1'],
+        value: 100),
+  );
+
+  testGolden(
+    'Star outer radius',
+    ValueDelegate.polystarOuterRadius(
+        ['Shape Layer 1', 'Star', 'Polystar Path 1'],
+        value: 60),
+  );
+
+  testGolden(
+    'Star outer roundedness',
+    ValueDelegate.polystarOuterRoundedness(
+        ['Shape Layer 1', 'Star', 'Polystar Path 1'],
+        value: 100),
+  );
+
+  testGolden(
+    'Polygon points',
+    ValueDelegate.polystarPoints(['Shape Layer 1', 'Star', 'Polystar Path 1'],
+        value: 8),
+  );
+
+  testGolden(
+    'Polygon rotation',
+    ValueDelegate.polystarRotation(['Shape Layer 1', 'Star', 'Polystar Path 1'],
+        value: 10),
+  );
+
+  testGolden(
+    'Polygon position',
+    ValueDelegate.position(['Shape Layer 1', 'Star', 'Polystar Path 1'],
+        relative: Offset(20, 20)),
+  );
+
+  testGolden(
+    'Polygon radius',
+    ValueDelegate.polystarOuterRadius(
+        ['Shape Layer 1', 'Star', 'Polystar Path 1'],
+        relative: 60),
+  );
+
+  testGolden(
+    'Polygon roundedness',
+    ValueDelegate.polystarOuterRoundedness(
+        ['Shape Layer 1', 'Star', 'Polystar Path 1'],
+        value: 100),
+  );
+
+  testGolden(
+    'Repeater transform position',
+    ValueDelegate.transformPosition(
+        ['Shape Layer 1', 'Repeater Shape', 'Repeater 1'],
+        relative: Offset(100, 100)),
+  );
+
+  testGolden(
+    'Repeater transform start opacity',
+    ValueDelegate.transformStartOpacity(
+        ['Shape Layer 1', 'Repeater Shape', 'Repeater 1'],
+        value: 25),
+  );
+
+  testGolden(
+    'Repeater transform end opacity',
+    ValueDelegate.transformEndOpacity(
+        ['Shape Layer 1', 'Repeater Shape', 'Repeater 1'],
+        value: 25),
+  );
+
+  testGolden(
+    'Repeater transform rotation',
+    ValueDelegate.transformRotation(
+        ['Shape Layer 1', 'Repeater Shape', 'Repeater 1'],
+        value: 45),
+  );
+
+  testGolden(
+    'Repeater transform scale',
+    ValueDelegate.transformScale(
+        ['Shape Layer 1', 'Repeater Shape', 'Repeater 1'],
+        value: Offset(2, 2)),
+  );
+
+  testGolden('Time remapping', ValueDelegate.timeRemap(['Circle 1'], value: 1),
+      progress: 0.1);
+
+  testGolden(
+    'Color Filter',
+    ValueDelegate.colorFilter(['**'],
+        value: ColorFilter.mode(Colors.green, BlendMode.srcATop)),
+  );
+
+  testGolden(
+    'Null Color Filter',
+    ValueDelegate.colorFilter(['**'], value: null),
+  );
+
+  for (var progress in [0.0, 0.5, 1.0]) {
+    testGolden(
+        'Opacity interpolation ($progress)',
+        ValueDelegate.transformOpacity(['Shape Layer 1', 'Rectangle'],
+            callback: (frameInfo) => lerpDouble(
+                    10, 100, Curves.linear.transform(frameInfo.overallProgress))
+                .round()),
+        progress: progress);
+  }
+
+  testWidgets('warningShimmer', (tester) async {
+    var size = Size(500, 400);
+    tester.binding.window.physicalSizeTestValue = size;
+    tester.binding.window.devicePixelRatioTestValue = 1.0;
+
+    var composition = await LottieComposition.fromBytes(
+        File('test/data/warningShimmer.json').readAsBytesSync());
+
+    var delegates = <String, List<ValueDelegate>>{
+      '1': [
+        for (var i in ['1', '2', '5'])
+          ValueDelegate.color(['Layer $i Outlines', '**'], value: Colors.red),
+        for (var i in ['3', '4'])
+          ValueDelegate.color(['Layer $i Outlines', '**'],
+              value: Colors.greenAccent),
+      ],
+      '2': [
+        for (var i in ['1', '2', '5'])
+          ValueDelegate.color(['Layer $i Outlines', 'Group 1', '*'],
+              value: Colors.red),
+        for (var i in ['3', '4'])
+          ValueDelegate.color(['Layer $i Outlines', 'Group 1', '*'],
+              value: Colors.greenAccent),
+      ],
+      '3': [
+        for (var i in ['1', '2', '5'])
+          ValueDelegate.color(['Layer $i Outlines', 'Group 1', 'Fill 1'],
+              value: Colors.red),
+        for (var i in ['3', '4'])
+          ValueDelegate.color(['Layer $i Outlines', 'Group 1', 'Fill 1'],
+              value: Colors.greenAccent),
+      ],
+    };
+
+    for (var variant in delegates.entries) {
+      await tester.pumpWidget(
+        FilmStrip(
+          composition,
+          size: size,
+          delegates: LottieDelegates(
+            values: variant.value,
+          ),
+        ),
+      );
+
+      await expectLater(find.byType(FilmStrip),
+          matchesGoldenFile('goldens/warningShimmer_${variant.key}.png'));
+    }
+  });
+}

example/test/dynamic_text_test.dart

@@ -0,0 +1,29 @@
+import 'dart:io';
+import 'dart:ui';
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:lottie/lottie.dart';
+
+void main() {
+  testWidgets('Dynamic test', (tester) async {
+    var composition = await LottieComposition.fromBytes(
+        File('assets/Tests/DynamicText.json').readAsBytesSync());
+
+    await tester.pumpWidget(
+      MaterialApp(
+        home: Lottie(
+          composition: composition,
+          animate: false,
+          delegates: LottieDelegates(
+              text: (input) => '🔥c️🔥👮🏿‍🔥',
+              textStyle: (font) => TextStyle(
+                  fontFamily: 'Roboto', fontFamilyFallback: ['Noto Emoji']),
+              values: []),
+        ),
+      ),
+    );
+
+    await expectLater(
+        find.byType(Lottie), matchesGoldenFile('goldens/dynamic_text.png'));
+  });
+}

example/test/fireworks_test.dart

@@ -0,0 +1,23 @@
+import 'dart:io';
+import 'dart:ui';
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:lottie/lottie.dart';
+import 'package:path/path.dart' as p;
+import 'utils.dart';
+
+void main() {
+  testWidgets('Animations with stroke', (tester) async {
+    var size = Size(500, 400);
+    tester.binding.window.physicalSizeTestValue = size;
+    tester.binding.window.devicePixelRatioTestValue = 1.0;
+
+    var composition = await LottieComposition.fromBytes(
+        File('assets/17297-fireworks.json').readAsBytesSync());
+
+    await tester.pumpWidget(FilmStrip(composition, size: size));
+
+    await expectLater(find.byType(FilmStrip),
+        matchesGoldenFile(p.join('goldens/fireworks.png')));
+  });
+}

example/test/flutter_test_config.dart

@@ -0,0 +1,7 @@
+import 'dart:async';
+import 'package:golden_toolkit/golden_toolkit.dart';
+
+Future<void> main(FutureOr<void> Function() testMain) async {
+  await loadAppFonts();
+  return testMain();
+}

example/test/golden_test.dart

@@ -0,0 +1,32 @@
+import 'dart:io';
+import 'dart:ui';
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:lottie/lottie.dart';
+import 'package:path/path.dart' as p;
+import 'utils.dart';
+
+void main() {
+  var root = 'assets';
+  for (var asset in Directory(root)
+      .listSync(recursive: true)
+      .whereType<File>()
+      .where((f) => const ['.json', '.zip'].contains(p.extension(f.path)))) {
+    testWidgets('Goldens ${asset.path}', (tester) async {
+      var size = Size(500, 400);
+      tester.binding.window.physicalSizeTestValue = size;
+      tester.binding.window.devicePixelRatioTestValue = 1.0;
+      var composition = await tester.runAsync(() => FileLottie(asset).load());
+
+      await tester.pumpWidget(FilmStrip(composition, size: size));
+
+      var folder = p.relative(asset.path, from: root);
+      var fileName =
+          '${p.basenameWithoutExtension(asset.path)}.png'.toLowerCase();
+      await expectLater(
+          find.byType(FilmStrip),
+          matchesGoldenFile(
+              p.join('goldens/all', p.dirname(folder), fileName)));
+    });
+  }
+}