fix: Revert Cubic to PathInterpolator.cubic (#173)

And allow to use an imageProviderFactory with a zip file.

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

@@ -10,8 +10,8 @@ jobs:
     name: Flutter analyze
     strategy:
       matrix:
-        flutter: ['stable', 'dev']
-    runs-on: ubuntu-latest
+        flutter: ['beta']
+    runs-on: macos-latest
     steps:
       - uses: actions/checkout@v2
       - uses: subosito/flutter-action@v1
@@ -19,13 +19,31 @@ 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)
-        shell: bash
+        shell: bash
+  build_web_version:
+    name: Check that the web version compile
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: subosito/flutter-action@v1
+        with:
+          channel: 'beta'
+      - run: flutter config --enable-web
+      - run: flutter precache web
+      - run: flutter pub get
+        working-directory: example
+      - run: flutter build web
+        working-directory: example

.github/workflows/publish-on-pub.yaml

@@ -10,16 +10,14 @@ jobs:
       - uses: actions/checkout@v2
       - uses: subosito/flutter-action@v1
         with:
-          channel: 'stable'
+          channel: 'beta'
       - run: flutter pub get
       - run: flutter pub run tool/publish/comment_dependency_overrides.dart
       - run: flutter pub get
-      - run: echo ::set-env name=RELEASE_VERSION::${GITHUB_REF}
-      - run: flutter pub run tool/publish/check_version.dart ${{ env.RELEASE_VERSION }}
+      - run: flutter pub run tool/publish/check_version.dart ${GITHUB_REF}
       - name: Setup credentials
         run: |
-          mkdir -p $FLUTTER_HOME/.pub-cache
-          cat <<EOF > $FLUTTER_HOME/.pub-cache/credentials.json
+          cat <<EOF > $PUB_CACHE/credentials.json
           {
             "accessToken":"${{ secrets.OAUTH_ACCESS_TOKEN }}",
             "refreshToken":"${{ secrets.OAUTH_REFRESH_TOKEN }}",

.gitignore

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

CHANGELOG.md

@@ -1,27 +1,176 @@
-## [0.2.1] - 2020-02-11
+## [1.2.1]
+- Fix: Revert Cubic to `PathInterpolator.cubic`
+
+## [1.2.0]
+- Add support for gaussian blurs.
+
+Example to blur some elements dynamically:
+  
+```dart
+Lottie.asset(
+  'assets/AndroidWave.json',
+  delegates: LottieDelegates(values: [
+    ValueDelegate.blurRadius(
+      ['**'], // The path to the element to blur
+      value: 20,
+    ),
+  ]),
+)
+```
+
+- Add support for drop shadows.
+
+Example to add a shadow dynamically:
+```dart
+Lottie.asset(
+  'assets/animation.json',
+  delegates: LottieDelegates(values: [
+    ValueDelegate.dropShadow(
+      ['**'], // The path to the elements with shadow
+      value: const DropShadow(
+        color: Colors.blue,
+        direction: 140,
+        distance: 60,
+        radius: 10,
+      ),
+    ),
+  ]),
+)
+```
+
+## [1.1.0]
+- Add `errorBuilder` callback to provide an alternative widget in case an error occurs during loading.
+```dart
+Lottie.network(
+  'https://example.does.not.exist/lottie.json',
+  errorBuilder: (context, exception, stackTrace) {
+    return const Text('😢');
+  },
+);
+```
+
+- Add `onWarning` to be notified when a warning occurs during the animation parsing or painting.
+  Previously the warnings where written in an internal `logger`.
+  ```dart
+  Lottie.asset('animation.json'
+    onWarning: (warning) {
+      _logger.info(warning);
+    },
+  );
+  ```
+- Various bug fixes
+
+## [1.0.1]
+- Implement `RenderBox.computeDryLayout`
+
+## [1.0.0]
+- Migrate to null safety
+- Fix some rendering bugs
+- Add an image delegate to dynamically change images
+- Allow to use an imageProviderFactory with a zip file
+
+## [0.7.1]
+- Fix a crash for some lottie file with empty paths.
+
+## [0.7.0+1]
+- Fix Flutter Web compilation error
+
+## [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]
 - 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. 
+This repository is an 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, macOS, linux, windows and web.
 
 ## Usage
 
@@ -20,9 +20,11 @@ The `Lottie` widget will load the json file and run the animation indefinitely.
 import 'package:flutter/material.dart';
 import 'package:lottie/lottie.dart';
 
-void main() => runApp(MyApp());
+void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
+  const MyApp({Key? key}) : super(key: key);
+
   @override
   Widget build(BuildContext context) {
     return MaterialApp(
@@ -37,7 +39,7 @@ 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'),
           ],
         ),
       ),
@@ -46,29 +48,27 @@ 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';
 import 'package:lottie/lottie.dart';
 
-void main() => runApp(MyApp());
+void main() => runApp(const MyApp());
 
 class MyApp extends StatefulWidget {
+  const MyApp({Key? key}) : super(key: key);
+
   @override
   _MyAppState createState() => _MyAppState();
 }
 
 class _MyAppState extends State<MyApp> with TickerProviderStateMixin {
-  AnimationController _controller;
+  late final AnimationController _controller;
 
   @override
   void initState() {
@@ -89,8 +89,8 @@ 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 +108,8 @@ 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.
@@ -124,21 +126,24 @@ 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 {
+  const MyWidget({Key? key}) : super(key: key);
+
   @override
   _MyWidgetState createState() => _MyWidgetState();
 }
 
 class _MyWidgetState extends State<MyWidget> {
-  Future<LottieComposition> _composition;
+  late final Future<LottieComposition> _composition;
 
   @override
   void initState() {
@@ -161,7 +166,7 @@ class _MyWidgetState extends State<MyWidget> {
         if (composition != null) {
           return Lottie(composition: composition);
         } else {
-          return Center(child: CircularProgressIndicator());
+          return const Center(child: CircularProgressIndicator());
         }
       },
     );
@@ -177,31 +182,32 @@ a specific position and size.
 class CustomDrawer extends StatelessWidget {
   final LottieComposition composition;
 
-  const CustomDrawer(this.composition, {Key key}) : super(key: key);
+  const CustomDrawer(this.composition, {Key? key}) : super(key: key);
 
   @override
   Widget build(BuildContext context) {
     return CustomPaint(
       painter: _Painter(composition),
-      size: Size(400, 400),
+      size: const Size(400, 400),
     );
   }
 }
 
 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 +218,46 @@ 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: const Offset(100, 200),
+          ),
+        ],
+      ),
+    );
+  }
+}
+````
+
+## Limitations
+This port supports the same [feature set as Lottie Android](https://airbnb.io/lottie/#/supported-features).
 
 ## Flutter Web
-Run the app with `flutter run -d Chrome --dart-define=FLUTTER_WEB_USE_SKIA=true --release`
+Run the app with `flutter run -d chrome --web-renderer canvaskit`
 
-The performance are not great and some features are missing.
+See a preview here: https://xvrh.github.io/lottie-flutter-web/
 
-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. 
+This repository is an 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, macOS, linux, windows 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 +68,22 @@ 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
+This port supports the same [feature set as Lottie Android](https://airbnb.io/lottie/#/supported-features).
 
 ## Flutter Web
-Run the app with `flutter run -d Chrome --dart-define=FLUTTER_WEB_USE_SKIA=true --release`
+Run the app with `flutter run -d chrome --web-renderer canvaskit`
 
-The performance are not great and some features are missing.
+See a preview here: https://xvrh.github.io/lottie-flutter-web/
 
-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

@@ -1,38 +1,29 @@
-include: package:pedantic/analysis_options.yaml
+include: package:flutter_lints/flutter.yaml
 analyzer:
-  errors:
   strong-mode:
     implicit-casts: false
+    implicit-dynamic: false
 linter:
   rules:
-    avoid_renaming_method_parameters: true
-    avoid_returning_null_for_future: true
-    avoid_returning_null_for_void: true
-    avoid_returning_this: true
+    avoid_print: false
+
+    always_declare_return_types: true
+    avoid_dynamic_calls: true
+    avoid_escaping_inner_quotes: true
     avoid_setters_without_getters: true
-    await_only_futures: true
-    camel_case_types: true
-    cancel_subscriptions: true
+    cast_nullable_to_non_nullable: true
     close_sinks: true
-    constant_identifier_names: true
-    empty_statements: true
-    hash_and_equals: true
-    iterable_contains_unrelated_type: true
-    list_remove_unrelated_type: true
     no_adjacent_strings_in_list: true
-    non_constant_identifier_names: true
+    no_default_cases: true
+    omit_local_variable_types: true
     only_throw_errors: true
-    overridden_fields: true
-    prefer_inlined_adds: true
     prefer_interpolation_to_compose_strings: true
-    prefer_null_aware_operators: true
-    prefer_relative_imports: true
-    prefer_typing_uninitialized_variables: true
+    prefer_single_quotes: true
+    sort_child_properties_last: true
     sort_pub_dependencies: true
     test_types_in_equals: true
-    unnecessary_brace_in_string_interps: true
-    unnecessary_getters_setters: true
+    unawaited_futures: true
     unnecessary_parenthesis: true
     unnecessary_statements: true
-    use_function_type_syntax_for_parameters: true
-    void_checks: true
+    unsafe_html: true
+    use_raw_strings: true

example/README.md

@@ -6,9 +6,11 @@
 import 'package:flutter/material.dart';
 import 'package:lottie/lottie.dart';
 
-void main() => runApp(MyApp());
+void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
+  const MyApp({Key? key}) : super(key: key);
+
   @override
   Widget build(BuildContext context) {
     return MaterialApp(

example/assets/Tests/AnimatedShadow.json

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example/assets/Tests/FillBlur.json

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example/assets/Tests/GradientFillBlur.json

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example/assets/Tests/GradientOpacityInterpolation.json

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+  "v": "5.7.1",
+  "fr": 60,
+  "ip": 0,
+  "op": 65,
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+  "h": 1056,
+  "nm": "Animation",
+  "ddd": 0,
+  "assets": [],
+  "layers": [
+    {
+      "ddd": 0,
+      "ind": 1,
+      "ty": 4,
+      "nm": "Shape Layer 3",
+      "sr": 1,
+      "ks": {
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+        "r": { "a": 0, "k": 0, "ix": 10 },
+        "p": { "a": 0, "k": [528, 531, 0], "ix": 2 },
+        "a": { "a": 0, "k": [0, 0, 0], "ix": 1 },
+        "s": { "a": 0, "k": [147.368, 147.368, 100], "ix": 6 }
+      },
+      "ao": 0,
+      "shapes": [
+        {
+          "ty": "gr",
+          "it": [
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+              "s": { "a": 0, "k": [415, 415], "ix": 2 },
+              "p": { "a": 0, "k": [0, 0], "ix": 3 },
+              "nm": "Ellipse Path 1",
+              "mn": "ADBE Vector Shape - Ellipse",
+              "hd": false
+            },
+            {
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+              "o": { "a": 0, "k": 55, "ix": 10 },
+              "r": 1,
+              "bm": 0,
+              "g": {
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+                }
+              },
+              "s": { "a": 0, "k": [-206.344, -144.451], "ix": 5 },
+              "e": { "a": 0, "k": [173.147, 192.356], "ix": 6 },
+              "t": 1,
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+              "mn": "ADBE Vector Graphic - G-Fill",
+              "hd": false
+            },
+            {
+              "ty": "tr",
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+      "st": 1.2,
+      "bm": 0
+    }
+  ],
+  "markers": []
+}

example/assets/Tests/GradientStrokeBlur.json

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example/assets/Tests/Rect1.json

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example/assets/Tests/Rect3.json

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example/assets/Tests/Rect4.json

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example/assets/Tests/Rect5.json

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example/assets/Tests/Rect6.json

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example/assets/Tests/Rect7.json

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example/assets/Tests/StrokeBlur.json

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example/assets/Tests/TelegramAlphaCompat.json

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+}

example/assets/Tests/TimeStretchPrecomp2.json

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+}

example/assets/Tests/rect2.json

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example/assets/example_with_images/data.json

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+      "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
+          ],
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+        },
+        "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 +1,3 @@
+#include? "Pods/Target Support Files/Pods-Runner/Pods-Runner.debug.xcconfig"
+#include "Pods/Target Support Files/Pods-Runner/Pods-Runner.debug.xcconfig"
 #include "Generated.xcconfig"

example/ios/Flutter/Release.xcconfig

@@ -1 +1,3 @@
+#include? "Pods/Target Support Files/Pods-Runner/Pods-Runner.release.xcconfig"
+#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 +1,49 @@
+import 'package:flutter/material.dart';
+import 'package:flutter/scheduler.dart';
+import 'package:lottie/lottie.dart';
+
+void main() => runApp(const App());
+
+class App extends StatelessWidget {
+  const App({Key? key}) : super(key: key);
+
+  @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 const 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(const 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

@@ -1,15 +1,17 @@
 import 'package:flutter/material.dart';
 import 'package:lottie/lottie.dart';
 
-void main() => runApp(MyApp());
+void main() => runApp(const MyApp());
 
 class MyApp extends StatefulWidget {
+  const MyApp({Key? key}) : super(key: key);
+
   @override
   _MyAppState createState() => _MyAppState();
 }
 
 class _MyAppState extends State<MyApp> with TickerProviderStateMixin {
-  AnimationController _controller;
+  late final AnimationController _controller;
 
   @override
   void initState() {
@@ -30,8 +32,8 @@ 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 +1,111 @@
+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(const MyApp());
+
+class MyApp extends StatefulWidget {
+  const MyApp({Key? key}) : super(key: key);
+
+  @override
+  _MyAppState createState() => _MyAppState();
+}
+
+class _MyAppState extends State<MyApp> with TickerProviderStateMixin {
+  late final 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: const 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: const Icon(Icons.arrow_left),
+                  onPressed: () {
+                    _controller.reverse();
+                  },
+                ),
+                // Pause
+                IconButton(
+                  icon: const Icon(Icons.pause),
+                  onPressed: () {
+                    _controller.stop();
+                  },
+                ),
+                // Play forward
+                IconButton(
+                  icon: const Icon(Icons.arrow_right),
+                  onPressed: () {
+                    _controller.forward();
+                  },
+                ),
+              ],
+            ),
+            const SizedBox(height: 30),
+            ElevatedButton(
+              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),
+                );
+              },
+              child: const Text('Loop between frames'),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}

example/lib/examples/blur.dart

@@ -0,0 +1,30 @@
+import 'package:flutter/material.dart';
+import 'package:lottie/lottie.dart';
+
+void main() => runApp(const MyApp());
+
+class MyApp extends StatelessWidget {
+  const MyApp({Key? key}) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      home: Scaffold(
+        body: ListView(
+          children: [
+            Lottie.asset(
+              'assets/AndroidWave.json',
+              height: 300,
+              delegates: LottieDelegates(values: [
+                ValueDelegate.blurRadius(
+                  ['**'],
+                  value: 20,
+                ),
+              ]),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}

example/lib/examples/custom_draw.dart

@@ -3,12 +3,14 @@ import 'package:flutter/services.dart';
 import 'package:flutter/widgets.dart';
 import 'package:lottie/lottie.dart';
 
-void main() => runApp(MyApp());
+void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
+  const MyApp({Key? key}) : super(key: key);
+
   @override
   Widget build(BuildContext context) {
-    return MaterialApp(
+    return const MaterialApp(
       home: Scaffold(
         body: MyWidget(),
       ),
@@ -17,12 +19,14 @@ class MyApp extends StatelessWidget {
 }
 
 class MyWidget extends StatefulWidget {
+  const MyWidget({Key? key}) : super(key: key);
+
   @override
   _MyWidgetState createState() => _MyWidgetState();
 }
 
 class _MyWidgetState extends State<MyWidget> {
-  Future<LottieComposition> _composition;
+  late final Future<LottieComposition> _composition;
 
   @override
   void initState() {
@@ -46,7 +50,7 @@ class _MyWidgetState extends State<MyWidget> {
         if (composition != null) {
           return CustomDrawer(composition);
         } else {
-          return Center(child: CircularProgressIndicator());
+          return const Center(child: CircularProgressIndicator());
         }
       },
     );
@@ -57,31 +61,32 @@ class _MyWidgetState extends State<MyWidget> {
 class CustomDrawer extends StatelessWidget {
   final LottieComposition composition;
 
-  const CustomDrawer(this.composition, {Key key}) : super(key: key);
+  const CustomDrawer(this.composition, {Key? key}) : super(key: key);
 
   @override
   Widget build(BuildContext context) {
     return CustomPaint(
       painter: _Painter(composition),
-      size: Size(400, 400),
+      size: const Size(400, 400),
     );
   }
 }
 
 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/custom_load.dart

@@ -3,12 +3,14 @@ import 'package:flutter/services.dart';
 import 'package:flutter/widgets.dart';
 import 'package:lottie/lottie.dart';
 
-void main() => runApp(MyApp());
+void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
+  const MyApp({Key? key}) : super(key: key);
+
   @override
   Widget build(BuildContext context) {
-    return MaterialApp(
+    return const MaterialApp(
       home: Scaffold(
         body: MyWidget(),
       ),
@@ -18,12 +20,14 @@ class MyApp extends StatelessWidget {
 
 //--- example
 class MyWidget extends StatefulWidget {
+  const MyWidget({Key? key}) : super(key: key);
+
   @override
   _MyWidgetState createState() => _MyWidgetState();
 }
 
 class _MyWidgetState extends State<MyWidget> {
-  Future<LottieComposition> _composition;
+  late final Future<LottieComposition> _composition;
 
   @override
   void initState() {
@@ -46,7 +50,7 @@ class _MyWidgetState extends State<MyWidget> {
         if (composition != null) {
           return Lottie(composition: composition);
         } else {
-          return Center(child: CircularProgressIndicator());
+          return const Center(child: CircularProgressIndicator());
         }
       },
     );

example/lib/examples/drop_shadow.dart

@@ -0,0 +1,35 @@
+import 'package:flutter/material.dart';
+import 'package:lottie/lottie.dart';
+
+void main() => runApp(const MyApp());
+
+class MyApp extends StatelessWidget {
+  const MyApp({Key? key}) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      home: Scaffold(
+        body: ListView(
+          children: [
+            Lottie.asset(
+              'assets/Tests/Fill.json',
+              height: 300,
+              delegates: LottieDelegates(values: [
+                ValueDelegate.dropShadow(
+                  ['**'],
+                  value: const DropShadow(
+                    color: Colors.blue,
+                    direction: 140,
+                    distance: 60,
+                    radius: 10,
+                  ),
+                ),
+              ]),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}

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(const 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: const 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: SizedBox(
+                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(const App());
+}
+
+class App extends StatefulWidget {
+  const App({Key? key}) : super(key: key);
+
+  @override
+  _AppState createState() => _AppState();
+}
+
+class _AppState extends State<App> with TickerProviderStateMixin {
+  late final 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: const 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),
+                  ),
+                ),
+              ),
+              SizedBox(
+                width: 300,
+                child: CupertinoTextField(
+                  controller: _textController,
+                  onChanged: (newText) {
+                    setState(() {});
+                  },
+                ),
+              )
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+}

example/lib/examples/error_builder.dart

@@ -0,0 +1,31 @@
+import 'package:flutter/material.dart';
+import 'package:lottie/lottie.dart';
+
+void main() => runApp(const MyApp());
+
+class MyApp extends StatelessWidget {
+  const MyApp({Key? key}) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      home: Scaffold(
+        body: ListView(
+          children: [_Animation()],
+        ),
+      ),
+    );
+  }
+}
+
+class _Animation extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    return Lottie.network(
+      'https://example.does.not.exist/lottie.json',
+      errorBuilder: (context, exception, stackTrace) {
+        return const Text('😢');
+      },
+    );
+  }
+}

example/lib/examples/examples.dart

@@ -1,9 +1,11 @@
 import 'package:flutter/material.dart';
 import 'package:lottie/lottie.dart';
 
-void main() => runApp(MyApp());
+void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
+  const MyApp({Key? key}) : super(key: key);
+
   @override
   Widget build(BuildContext context) {
     return MaterialApp(

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(const App());
+}
+
+class App extends StatefulWidget {
+  const App({Key? key}) : super(key: key);
+
+  @override
+  _AppState createState() => _AppState();
+}
+
+class _AppState extends State<App> with TickerProviderStateMixin {
+  late final 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(const App());
+}
+
+class App extends StatefulWidget {
+  const App({Key? key}) : super(key: key);
+
+  @override
+  _AppState createState() => _AppState();
+}
+
+class _AppState extends State<App> with TickerProviderStateMixin {
+  late final 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: const Text('Markers'),
+        ),
+        body: FutureBuilder<LottieComposition>(
+          future: _composition,
+          builder: (context, snapshot) {
+            if (snapshot.hasError) return ErrorWidget(snapshot.error!);
+            if (!snapshot.hasData) return const 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 {
+  late final 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: const Text('Composition start frame'),
+          trailing: Text(widget.composition.startFrame.toStringAsFixed(1)),
+        ),
+        ListTile(
+          title: const Text('Composition duration'),
+          trailing: Text(widget.composition.durationFrames.toStringAsFixed(1)),
+        ),
+        ElevatedButton(
+          onPressed: () => _playBetween('touchDownEnd', 'touchUpCancel'),
+          child: const Text('touchDownEnd - touchUpCancel'),
+        ),
+        ElevatedButton(
+          onPressed: () => _playBetween('touchDownStart', 'touchDownEnd'),
+          child: const Text('touchDownStart - touchDownEnd'),
+        ),
+        ElevatedButton(
+          onPressed: () => _playBetween('touchDownEnd', 'touchUpEnd'),
+          child: const Text('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/repeat.dart

@@ -0,0 +1,65 @@
+import 'package:flutter/material.dart';
+import 'package:lottie/lottie.dart';
+
+void main() => runApp(const MyApp());
+
+class MyApp extends StatefulWidget {
+  const MyApp({Key? key}) : super(key: key);
+
+  @override
+  _MyAppState createState() => _MyAppState();
+}
+
+class _MyAppState extends State<MyApp> with TickerProviderStateMixin {
+  late final AnimationController _controller;
+  int _repeatIndex = 0;
+
+  @override
+  void initState() {
+    super.initState();
+
+    _controller = AnimationController(vsync: this)
+      ..addStatusListener((status) {
+        if (status == AnimationStatus.completed) {
+          setState(() {
+            _repeatIndex++;
+          });
+          if (_repeatIndex < 5) {
+            _controller.reset();
+            _controller.forward();
+          }
+        }
+      });
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      home: Scaffold(
+        body: ListView(
+          children: [
+            Lottie.asset(
+              'assets/AndroidWave.json',
+              controller: _controller,
+              width: 150,
+              height: 150,
+              onLoaded: (composition) {
+                // Configure the AnimationController with the duration of the
+                // Lottie file and start the animation.
+                _controller.duration = composition.duration;
+                _controller.forward();
+              },
+            ),
+            Center(child: Text('Repeat: $_repeatIndex')),
+          ],
+        ),
+      ),
+    );
+  }
+
+  @override
+  void dispose() {
+    _controller.dispose();
+    super.dispose();
+  }
+}

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(const 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;
+  late final 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 +1,102 @@
+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(const MyApp());
+
+class MyApp extends StatefulWidget {
+  const MyApp({Key? key}) : super(key: key);
+
+  @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: [
+              ElevatedButton(
+                onPressed: _export,
+                child: const Text('Export all frames'),
+              ),
+              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: const 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 +1,47 @@
+import 'package:flutter/material.dart';
+import 'package:lottie/lottie.dart';
+
+void main() => runApp(const MyApp());
+
+class MyApp extends StatelessWidget {
+  const MyApp({Key? key}) : super(key: key);
+
+  @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: const Offset(100, 200),
+          ),
+        ],
+      ),
+    );
+  }
+}
+//---

example/lib/main.dart

@@ -1,159 +1,26 @@
-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(const MyApp());
+
+class MyApp extends StatelessWidget {
+  const MyApp({Key? key}) : super(key: key);
 
-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(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 +1,161 @@
+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';
+
+final _logger = Logger('main_app');
+
+void main() {
+  Logger.root
+    ..level = Level.ALL
+    ..onRecord.listen(print);
+  Lottie.traceEnabled = true;
+  runApp(const App());
+}
+
+class App extends StatelessWidget {
+  const App({Key? key}) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      //showPerformanceOverlay: true,
+      home: Scaffold(
+        appBar: AppBar(
+          title: const Text('Lottie Flutter'),
+        ),
+        body: Scrollbar(
+          child: GridView.builder(
+            itemCount: files.length,
+            gridDelegate: const SliverGridDelegateWithFixedCrossAxisCount(
+                crossAxisCount: 4),
+            itemBuilder: (context, index) {
+              var assetName = files[index];
+              return GestureDetector(
+                onTap: () {
+                  Navigator.push(
+                      context,
+                      MaterialPageRoute<void>(
+                          builder: (context) => Detail(assetName)));
+                },
+                child: _Item(
+                  child: Lottie.asset(
+                    assetName,
+                    onWarning: (w) => _logger.info('$assetName - $w'),
+                    frameBuilder: (context, child, composition) {
+                      return AnimatedOpacity(
+                        opacity: composition == null ? 0 : 1,
+                        duration: const Duration(seconds: 1),
+                        curve: Curves.easeOut,
+                        child: child,
+                      );
+                    },
+                  ),
+                ),
+              );
+            },
+          ),
+        ),
+      ),
+    );
+  }
+}
+
+class _Item extends StatelessWidget {
+  final Widget child;
+
+  const _Item({Key? key, required 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: const BorderRadius.all(Radius.circular(10)),
+            boxShadow: [
+              BoxShadow(
+                  color: Colors.black.withOpacity(0.1),
+                  offset: const 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 {
+  late final _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/sizing_example.dart

@@ -13,14 +13,14 @@ void main() async {
 class App extends StatelessWidget {
   final LottieComposition composition;
 
-  const App({Key key, this.composition}) : super(key: key);
+  const App({Key? key, required this.composition}) : super(key: key);
 
   @override
   Widget build(BuildContext context) {
     return MaterialApp(
       home: Scaffold(
         appBar: AppBar(
-          title: Text(''),
+          title: const Text(''),
         ),
         body: SingleChildScrollView(
           child: Center(
@@ -97,13 +97,13 @@ class App extends StatelessWidget {
 
 class _Lottie extends StatefulWidget {
   final LottieComposition composition;
-  final double width;
-  final double height;
-  final BoxFit fit;
-  final AlignmentGeometry alignment;
+  final double? width;
+  final double? height;
+  final BoxFit? fit;
+  final AlignmentGeometry? alignment;
 
   const _Lottie(this.composition,
-      {Key key, this.width, this.height, this.fit, this.alignment})
+      {Key? key, this.width, this.height, this.fit, this.alignment})
       : super(key: key);
 
   @override
@@ -111,7 +111,7 @@ class _Lottie extends StatefulWidget {
 }
 
 class __LottieState extends State<_Lottie> with TickerProviderStateMixin {
-  AnimationController _controller;
+  late AnimationController _controller;
 
   @override
   void initState() {

example/lib/src/all_files.g.dart

@@ -1,341 +1,360 @@
 // 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',
-  'assets/Tests/EndFrame.json',
-  'assets/Tests/RGB.json',
-  'assets/Tests/DynamicGradient.json',
-  'assets/Tests/Font_Text_Justification_Translate_Scale_Rotation_Test.json',
-  'assets/Tests/adrock_converted.json',
-  'assets/Tests/ShapeTypes.json',
-  'assets/Tests/Squares.json',
-  'assets/Tests/Parenting.json',
-  'assets/Tests/catrim.json',
-  'assets/Tests/Stroke.json',
-  'assets/Tests/TimeStretch.json',
-  'assets/Tests/CheckSwitch.json',
-  'assets/Tests/hd.json',
-  'assets/Tests/OverlapShapeWithOpacity.json',
-  'assets/Tests/Shapes.json',
-  'assets/Tests/Masks.json',
-  'assets/Tests/SolidLayerTransform.json',
-  'assets/Tests/WeAcceptInlineImage.json',
-  'assets/Tests/TrimPaths.json',
+  'assets/Tests/2ParentsMatte.json',
   'assets/Tests/Airbnb.zip',
-  'assets/Tests/DifferentPointsCount.json',
-  'assets/Tests/Skew.json',
-  'assets/Tests/GradientFill.json',
-  'assets/Tests/TransformWithoutEndValues.json',
-  'assets/Tests/EllipseDirection.json',
-  'assets/Tests/TimeStretchMask.json',
-  'assets/Tests/Frame.json',
-  'assets/Tests/map.zip',
-  'assets/Tests/august_view_pulse.zip',
-  'assets/Tests/KeyframeTypes.json',
-  'assets/Tests/dalek_converted.json',
-  'assets/Tests/Laugh4.json',
-  'assets/Tests/Scale0.json',
-  'assets/Tests/StarSkew.json',
-  'assets/Tests/TextBaseline.json',
-  'assets/Tests/Text.json',
-  'assets/Tests/bm.json',
-  'assets/Tests/Fill.json',
-  'assets/Tests/MaskA.json',
-  'assets/Tests/Repeater.json',
-  'assets/Tests/TimeStretchPrecomp.json',
-  'assets/Tests/adrock.json',
-  'assets/Tests/MatteTimeStretchLine.json',
+  'assets/Tests/Airbnb400.zip',
   'assets/Tests/Airbnb800.zip',
-  'assets/DynamicGradient.json',
-  'assets/LottieLogo2.json',
-  'assets/AndroidWave.json',
-  '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',
+  'assets/Tests/MaskA.json',
+  'assets/Tests/MaskInv.json',
+  'assets/Tests/MaskNone.json',
+  'assets/Tests/Masks.json',
+  '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',
+  'assets/Tests/Repeater.json',
+  'assets/Tests/Scale0.json',
+  'assets/Tests/ShapeTypes.json',
+  'assets/Tests/Shapes.json',
+  'assets/Tests/Skew.json',
+  'assets/Tests/SolidLayerTransform.json',
+  'assets/Tests/SplitDimensions.json',
+  '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/battery_optimizations.json',
+  'assets/bluetoothscanning.json',
+  'assets/camera_change.json',
+  'assets/envelope.json',
+  'assets/example_with_images/data.json',
+  'assets/lf20_w2Afea.json',
+  'assets/lottiefiles/100_percent.json',
+  'assets/lottiefiles/28861-connection-style-2.json',
+  'assets/lottiefiles/45668-arrow-with-light-passing-through.json',
+  'assets/lottiefiles/Plane.json',
+  'assets/lottiefiles/StreetByMorning.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',
-  'assets/lottiefiles/finish,done.json',
-  'assets/lottiefiles/rocket.json',
-  'assets/lottiefiles/chinese.json',
-  'assets/lottiefiles/cubo_livre.json',
-  'assets/lottiefiles/slack_app_loader.json',
-  'assets/lottiefiles/no_internet_connection.json',
-  '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',
-  'assets/lottiefiles/clock.json',
-  'assets/lottiefiles/timer_(3_second_loop).json',
-  'assets/lottiefiles/file_error.json',
-  'assets/lottiefiles/android_fingerprint.json',
-  'assets/lottiefiles/patient_successfully_added.json',
-  'assets/lottiefiles/toggle_switch.json',
-  'assets/lottiefiles/notification_request.json',
-  'assets/lottiefiles/loading disc.json',
-  'assets/lottiefiles/tractor_animation.json',
-  'assets/lottiefiles/Plane.json',
-  'assets/lottiefiles/retweet.json',
-  'assets/lottiefiles/blood_transfusion_kawaii.json',
-  'assets/lottiefiles/truecosmos.json',
-  'assets/lottiefiles/banner_animation.json',
-  'assets/lottiefiles/gears.json',
-  'assets/lottiefiles/progress_bar 2.json',
-  'assets/lottiefiles/flag_of_mexico.json',
-  'assets/lottiefiles/location_pin.json',
-  'assets/lottiefiles/play,_pause.json',
-  'assets/lottiefiles/panel2d.json',
-  'assets/lottiefiles/emoji_tongue.json',
-  'assets/lottiefiles/jolly_walker.json',
-  'assets/lottiefiles/switch_loop.json',
-  'assets/lottiefiles/intelia_logo_animation.json',
-  'assets/lottiefiles/credit_card.json',
-  'assets/lottiefiles/empty_status.json',
-  'assets/lottiefiles/autoconnect_loading.json',
-  'assets/lottiefiles/camera.json',
-  'assets/lottiefiles/volume_indicator.json',
-  'assets/lottiefiles/bell.json',
-  'assets/lottiefiles/colorline.json',
-  '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',
-  'assets/lottiefiles/summer.json',
-  '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',
-  'assets/lottiefiles/loading.json',
-  'assets/lottiefiles/curly_hair_character_loop.json',
-  'assets/lottiefiles/india.json',
-  'assets/lottiefiles/anima.json',
-  'assets/lottiefiles/volume_shake_indicator.json',
-  'assets/lottiefiles/rating.json',
-  'assets/lottiefiles/birds.json',
-  'assets/lottiefiles/in-app_purchasing.json',
-  'assets/lottiefiles/rejection.json',
-  'assets/lottiefiles/judgement.json',
-  'assets/lottiefiles/splashy_loader.json',
-  'assets/lottiefiles/construction_site.json',
-  'assets/lottiefiles/download.json',
-  'assets/lottiefiles/uk.json',
-  'assets/lottiefiles/location.json',
-  'assets/lottiefiles/change_to_search_bar.json',
-  'assets/lottiefiles/x_pop.json',
-  'assets/lottiefiles/socar_logo.json',
-  'assets/lottiefiles/fish.json',
-  'assets/lottiefiles/landing_page.json',
-  'assets/lottiefiles/turbine.json',
-  'assets/lottiefiles/ofrenda.json',
-  'assets/lottiefiles/emoji_shock.json',
-  'assets/lottiefiles/sky.zip',
-  'assets/lottiefiles/bb8.json',
-  'assets/lottiefiles/powerupp_app_onboard (1).json',
-  'assets/lottiefiles/im_thirsty.json',
-  'assets/lottiefiles/permission.json',
-  'assets/lottiefiles/animated_logo.json',
-  'assets/lottiefiles/youtube_icon_reveal.json',
-  'assets/lottiefiles/fab_animate.json',
-  'assets/lottiefiles/money.json',
-  'assets/lottiefiles/pagado.json',
-  'assets/lottiefiles/servishero_loading.json',
   'assets/lottiefiles/me_at_office.json',
-  'assets/lottiefiles/swiftkey-logo.json',
-  'assets/lottiefiles/favourite_app_icon.json',
-  'assets/lottiefiles/atm_link.json',
-  'assets/lottiefiles/emoji_wink.json',
-  'assets/lottiefiles/preloader.json',
-  'assets/lottiefiles/us.json',
-  'assets/lottiefiles/soda_loader.json',
+  'assets/lottiefiles/medal.json',
+  'assets/lottiefiles/menuButton2.json',
+  'assets/lottiefiles/menu_button_alt.json',
+  'assets/lottiefiles/mindful.json',
+  'assets/lottiefiles/mnemonics.json',
+  'assets/lottiefiles/money.json',
+  'assets/lottiefiles/motorcycle.json',
+  'assets/lottiefiles/moving bus.json',
+  'assets/lottiefiles/moving_eye.json',
+  'assets/lottiefiles/no_internet_connection.json',
+  'assets/lottiefiles/notification_request.json',
+  'assets/lottiefiles/octopus.json',
+  'assets/lottiefiles/ofrenda.json',
+  'assets/lottiefiles/on_off_settings_switch.json',
+  'assets/lottiefiles/pagado.json',
+  'assets/lottiefiles/pagination.json',
+  'assets/lottiefiles/panel2d.json',
+  'assets/lottiefiles/passport.json',
+  'assets/lottiefiles/patient_successfully_added.json',
+  'assets/lottiefiles/payme.json',
+  'assets/lottiefiles/peli-canon.json',
+  'assets/lottiefiles/pen_tool_loop.json',
+  'assets/lottiefiles/pencil_write.json',
+  'assets/lottiefiles/penguin.json',
+  'assets/lottiefiles/permission.json',
+  'assets/lottiefiles/personal_character.json',
+  'assets/lottiefiles/ph_onboarding_.json',
+  'assets/lottiefiles/phonological.json',
+  'assets/lottiefiles/pink_drink_machine.json',
+  'assets/lottiefiles/plane_to_dollar.json',
+  'assets/lottiefiles/play,_pause.json',
   'assets/lottiefiles/play_and_like_it.json',
+  'assets/lottiefiles/play_button.json',
+  'assets/lottiefiles/playing.json',
+  'assets/lottiefiles/point.json',
+  'assets/lottiefiles/poo_loader.json',
+  'assets/lottiefiles/powerupp_app_onboard (1).json',
+  'assets/lottiefiles/powerupp_app_onboard.json',
+  'assets/lottiefiles/preloader.json',
+  'assets/lottiefiles/print.json',
+  'assets/lottiefiles/progress_bar 2.json',
+  'assets/lottiefiles/progress_bar.json',
+  'assets/lottiefiles/rating.json',
+  'assets/lottiefiles/red_pocket_pop_up.json',
+  'assets/lottiefiles/rejection.json',
+  'assets/lottiefiles/retweet.json',
+  'assets/lottiefiles/rocket.json',
+  'assets/lottiefiles/rocksauce_title_card.json',
+  'assets/lottiefiles/scan.json',
+  'assets/lottiefiles/scan_qr_code_success.json',
+  'assets/lottiefiles/search_button.json',
+  'assets/lottiefiles/security_token_roundtable.zip',
+  'assets/lottiefiles/sensor_scan.zip',
+  'assets/lottiefiles/servishero_loading.json',
+  'assets/lottiefiles/simple_loader.json',
+  'assets/lottiefiles/sky.zip',
+  'assets/lottiefiles/slack_app_loader.json',
+  'assets/lottiefiles/snowcation.json',
+  'assets/lottiefiles/socar_logo.json',
+  'assets/lottiefiles/soda_loader.json',
+  'assets/lottiefiles/spacehub.json',
+  'assets/lottiefiles/spinner loading.json',
+  'assets/lottiefiles/splashy_loader.json',
+  'assets/lottiefiles/square_drop_loader.json',
+  'assets/lottiefiles/star 2.json',
+  'assets/lottiefiles/streetby_test_loading.json',
+  'assets/lottiefiles/submit button.json',
+  'assets/lottiefiles/summer.json',
+  'assets/lottiefiles/sushi_and_wine.zip',
+  'assets/lottiefiles/swiftkey-logo.json',
+  'assets/lottiefiles/swipe_menu.json',
+  'assets/lottiefiles/swipe_right_indicator.json',
+  'assets/lottiefiles/switch_loop.json',
+  'assets/lottiefiles/the_final_frontier.json',
+  'assets/lottiefiles/tigerobo_demo.json',
+  'assets/lottiefiles/timer_(3_second_loop).json',
+  'assets/lottiefiles/toggle.json',
+  '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',
-  'assets/lottiefiles/countdown.json',
-  'assets/lottiefiles/glow_loading.json',
-  'assets/lottiefiles/developer-animation.zip',
-  'assets/lottiefiles/bitcoin_to_the_moon.json',
-  'assets/lottiefiles/credit_level.json',
-  'assets/lottiefiles/medal.json',
-  'assets/lottiefiles/xamarin_logo_2.json',
-  'assets/lottiefiles/loading copy.json',
-  'assets/lottiefiles/done.json',
-  'assets/lottiefiles/plane_to_dollar.json',
-  'assets/lottiefiles/octopus.json',
-  'assets/lottiefiles/finance_animation.json',
-  'assets/lottiefiles/download copy.json',
-  'assets/lottiefiles/frog.json',
-  'assets/lottiefiles/yoga_carpet.json',
-  'assets/lottiefiles/sushi_and_wine.zip',
-  '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/spinning_carrousel.zip',
+  'assets/sticker.json',
+  'assets/tent.json',
+  'assets/weather/fog.json',
+  'assets/weather/hurricane.json',
+  'assets/weather/thunder-storm.json',
+  'assets/weather/tornado.json',
+  'assets/weather/windy.json',
 ];

example/lib/src/web_files.dart

@@ -0,0 +1,11 @@
+final files = [
+  'assets/lottiefiles/cubo_livre.json',
+  'assets/lottiefiles/slack_app_loader.json',
+  'assets/lottiefiles/walking.json',
+  'assets/lottiefiles/jojo_the_bird.json',
+  'assets/lottiefiles/bitcoin_to_the_moon.json',
+  'assets/lottiefiles/splashy_loader.json',
+  'assets/lottiefiles/uk.json',
+  'assets/lottiefiles/yoga_carpet.json',
+  'assets/lottiefiles/books.json',
+];

example/lib/tests/airbnb.dart

@@ -2,18 +2,18 @@ import 'package:flutter/material.dart';
 import 'package:lottie/lottie.dart';
 
 void main() async {
-  runApp(App());
+  runApp(const App());
 }
 
 class App extends StatelessWidget {
-  const App({Key key}) : super(key: key);
+  const App({Key? key}) : super(key: key);
 
   @override
   Widget build(BuildContext context) {
     return MaterialApp(
       home: Scaffold(
         appBar: AppBar(
-          title: Text(''),
+          title: const Text(''),
         ),
         body: SingleChildScrollView(
           child: Center(