Add errorBuilder

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

@@ -10,11 +10,11 @@ jobs:
     name: Flutter analyze
     strategy:
       matrix:
-        flutter: ['stable']
+        flutter: ['stable', 'dev']
     runs-on: macos-latest
     steps:
       - uses: actions/checkout@v2
-      - uses: subosito/flutter-action@v2
+      - uses: subosito/flutter-action@v1
         with:
           channel: ${{ matrix.flutter }}
       - run: flutter doctor
@@ -22,8 +22,8 @@ jobs:
       - run: flutter pub get
         working-directory: example
       - run: flutter analyze
-      - run: flutter test
-      - run: flutter test
+      - 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"
@@ -32,17 +32,4 @@ jobs:
           || (echo "##[error] found changed files after build. please run 'dart tool/prepare_submit.dart'" \
                    "and check in all changes" \
               && exit 1)
-        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@v2
-        with:
-          channel: 'stable'
-      - run: flutter precache web
-      - run: flutter pub get
-        working-directory: example
-      - run: flutter build web
-        working-directory: example
+        shell: bash

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

@@ -8,16 +8,18 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
-      - uses: subosito/flutter-action@v2
+      - uses: subosito/flutter-action@v1
         with:
           channel: 'stable'
       - run: flutter pub get
       - run: flutter pub run tool/publish/comment_dependency_overrides.dart
       - run: flutter pub get
-      - run: flutter pub run tool/publish/check_version.dart ${GITHUB_REF}
+      - run: echo ::set-env name=RELEASE_VERSION::${GITHUB_REF}
+      - run: flutter pub run tool/publish/check_version.dart ${{ env.RELEASE_VERSION }}
       - name: Setup credentials
         run: |
-          cat <<EOF > $PUB_CACHE/credentials.json
+          mkdir -p $FLUTTER_HOME/.pub-cache
+          cat <<EOF > $FLUTTER_HOME/.pub-cache/credentials.json
           {
             "accessToken":"${{ secrets.OAUTH_ACCESS_TOKEN }}",
             "refreshToken":"${{ secrets.OAUTH_REFRESH_TOKEN }}",

.gitignore

@@ -3,7 +3,6 @@ _*
 
 !.gitignore
 !.github
-!.pubignore
 
 **/failures/*.png
 

.pubignore

@@ -1,15 +0,0 @@
-.dart_tool/
-.packages
-build/
-doc/api/
-*.iml
-_*
-.*
-**/failures/*.png
-test/golden/
-test/goldens/
-example/assets/
-example/android/
-example/ios/
-example/macos/
-example/web/

CHANGELOG.md

@@ -1,117 +1,3 @@
-## [1.4.2]
-- Use `FilterQuality.low` as default to draw image layers.
-
-## [1.4.1]
-- Allow `AlignmentGeometry` for `alignment`.
-
-## [1.4.0]
-- Added `filterQuality` property to control the performance vs quality trade-off to use when drawing images
-
-## [1.3.0]
-- Added support for rounded corners on shapes and rects
-- Add support for text in dynamic properties (`ValueDelegate`)
-
-Example:
-
-```dart
-Lottie.asset(
-  'assets/DynamicText.json',
-  delegates: LottieDelegates(values: [
-    ValueDelegate.text(
-      ['Text layer'], // The path to the text element to change
-      value: 'The new text',
-    ),
-  ]),
-)
-```
-
-- Improve stroke with offset
-- Add support for reversed polystar paths
-- Enforce order of operations to avoid rounding errors
-
-## [1.2.2]
-- Internal maintenance: fix lints for Flutter 2.10
-
-## [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).  

README.md

@@ -6,9 +6,9 @@
 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 an unofficial conversion of the [Lottie-android](https://github.com/airbnb/lottie-android) library in pure Dart. 
+This repository is a unofficial conversion of the [Lottie-android](https://github.com/airbnb/lottie-android) library in pure Dart. 
 
-It works on Android, iOS, macOS, linux, windows and web.
+It works on Android, iOS and macOS and web.
 
 ## Usage
 
@@ -20,11 +20,9 @@ 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(const MyApp());
+void main() => runApp(MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
-
   @override
   Widget build(BuildContext context) {
     return MaterialApp(
@@ -58,17 +56,15 @@ With a custom `AnimationController` you have a rich API to play the animation in
 import 'package:flutter/material.dart';
 import 'package:lottie/lottie.dart';
 
-void main() => runApp(const MyApp());
+void main() => runApp(MyApp());
 
 class MyApp extends StatefulWidget {
-  const MyApp({Key? key}) : super(key: key);
-
   @override
-  State<MyApp> createState() => _MyAppState();
+  _MyAppState createState() => _MyAppState();
 }
 
 class _MyAppState extends State<MyApp> with TickerProviderStateMixin {
-  late final AnimationController _controller;
+  AnimationController _controller;
 
   @override
   void initState() {
@@ -136,14 +132,12 @@ 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
-  State<MyWidget> createState() => _MyWidgetState();
+  _MyWidgetState createState() => _MyWidgetState();
 }
 
 class _MyWidgetState extends State<MyWidget> {
-  late final Future<LottieComposition> _composition;
+  Future<LottieComposition> _composition;
 
   @override
   void initState() {
@@ -166,7 +160,7 @@ class _MyWidgetState extends State<MyWidget> {
         if (composition != null) {
           return Lottie(composition: composition);
         } else {
-          return const Center(child: CircularProgressIndicator());
+          return Center(child: CircularProgressIndicator());
         }
       },
     );
@@ -182,13 +176,13 @@ 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: const Size(400, 400),
+      size: Size(400, 400),
     );
   }
 }
@@ -242,7 +236,7 @@ class _Animation extends StatelessWidget {
           ),
           ValueDelegate.position(
             const ['Shape Layer 1', 'Rectangle', '**'],
-            relative: const Offset(100, 200),
+            relative: Offset(100, 200),
           ),
         ],
       ),
@@ -252,12 +246,13 @@ class _Animation extends StatelessWidget {
 ````
 
 ## Limitations
-This port supports the same [feature set as Lottie Android](https://airbnb.io/lottie/#/supported-features).
+Only the [supported features of Lottie Android](https://airbnb.io/lottie/#/supported-features)
+are supported in this port.
 
 ## Flutter Web
-Run the app with `flutter run -d chrome --web-renderer canvaskit`
+Run the app with `flutter run -d Chrome --dart-define=FLUTTER_WEB_USE_SKIA=true --release`
 
-See a preview here: https://xvrh.github.io/lottie-flutter-web/
+See a preview here: https://xvrh.github.io/lottie-flutter/index.html
 
 ## More examples
 See the `example` folder for more code samples of the various possibilities.

README.template.md

@@ -6,9 +6,9 @@
 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 an unofficial conversion of the [Lottie-android](https://github.com/airbnb/lottie-android) library in pure Dart. 
+This repository is a unofficial conversion of the [Lottie-android](https://github.com/airbnb/lottie-android) library in pure Dart. 
 
-It works on Android, iOS, macOS, linux, windows and web.
+It works on Android, iOS and macOS and web.
 
 ## Usage
 
@@ -78,12 +78,13 @@ 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).
+Only the [supported features of Lottie Android](https://airbnb.io/lottie/#/supported-features)
+are supported in this port.
 
 ## Flutter Web
-Run the app with `flutter run -d chrome --web-renderer canvaskit`
+Run the app with `flutter run -d Chrome --dart-define=FLUTTER_WEB_USE_SKIA=true --release`
 
-See a preview here: https://xvrh.github.io/lottie-flutter-web/
+See a preview here: https://xvrh.github.io/lottie-flutter/index.html
 
 ## More examples
 See the `example` folder for more code samples of the various possibilities.

analysis_options.yaml

@@ -1,29 +1,39 @@
-include: package:flutter_lints/flutter.yaml
+include: package:pedantic/analysis_options.yaml
 analyzer:
+  errors:
   strong-mode:
     implicit-casts: false
     implicit-dynamic: false
 linter:
   rules:
-    avoid_print: false
-
-    always_declare_return_types: true
-    avoid_dynamic_calls: true
-    avoid_escaping_inner_quotes: true
+    avoid_renaming_method_parameters: true
+    avoid_returning_null_for_future: true
+    avoid_returning_null_for_void: true
+    avoid_returning_this: true
     avoid_setters_without_getters: true
-    cast_nullable_to_non_nullable: true
+    await_only_futures: true
+    camel_case_types: true
+    cancel_subscriptions: 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
-    no_default_cases: true
-    omit_local_variable_types: true
+    non_constant_identifier_names: true
     only_throw_errors: true
+    overridden_fields: true
+    prefer_inlined_adds: true
     prefer_interpolation_to_compose_strings: true
-    prefer_single_quotes: true
-    sort_child_properties_last: true
+    prefer_null_aware_operators: true
+    prefer_relative_imports: true
+    prefer_typing_uninitialized_variables: true
     sort_pub_dependencies: true
     test_types_in_equals: true
-    unawaited_futures: true
+    unnecessary_brace_in_string_interps: true
+    unnecessary_getters_setters: true
     unnecessary_parenthesis: true
     unnecessary_statements: true
-    unsafe_html: true
-    use_raw_strings: true
+    use_function_type_syntax_for_parameters: true
+    void_checks: true

example/README.md

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

example/android/.gitignore

@@ -5,9 +5,3 @@ gradle-wrapper.jar
 /gradlew.bat
 /local.properties
 GeneratedPluginRegistrant.java
-
-# Remember to never publicly share your keystore.
-# See https://flutter.dev/docs/deployment/android#reference-the-keystore-from-the-app
-key.properties
-**/*.keystore
-**/*.jks

example/android/app/build.gradle

@@ -8,7 +8,7 @@ if (localPropertiesFile.exists()) {
 
 def flutterRoot = localProperties.getProperty('flutter.sdk')
 if (flutterRoot == null) {
-    throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
+    throw new Exception("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
 }
 
 def flutterVersionCode = localProperties.getProperty('flutter.versionCode')
@@ -26,28 +26,23 @@ apply plugin: 'kotlin-android'
 apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
 
 android {
-    compileSdkVersion flutter.compileSdkVersion
-
-    compileOptions {
-        sourceCompatibility JavaVersion.VERSION_1_8
-        targetCompatibility JavaVersion.VERSION_1_8
-    }
-
-    kotlinOptions {
-        jvmTarget = '1.8'
-    }
+    compileSdkVersion 28
 
     sourceSets {
         main.java.srcDirs += 'src/main/kotlin'
     }
 
+    lintOptions {
+        disable 'InvalidPackage'
+    }
+
     defaultConfig {
-        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
-        applicationId "com.github.xvrh.lottie.example"
-        minSdkVersion flutter.minSdkVersion
-        targetSdkVersion flutter.targetSdkVersion
+        applicationId "com.github.xvrh.lottie.sample"
+        minSdkVersion 16
+        targetSdkVersion 28
         versionCode flutterVersionCode.toInteger()
         versionName flutterVersionName
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
     }
 
     buildTypes {
@@ -65,4 +60,7 @@ flutter {
 
 dependencies {
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'androidx.test:runner:1.1.1'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.1'
 }

example/android/app/src/debug/AndroidManifest.xml

@@ -1,5 +1,5 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.github.xvrh.lottie.example">
+    package="com.github.xvrh.lottie.sample">
     <!-- Flutter needs it to communicate with the running application
          to allow setting breakpoints, to provide hot reload, etc.
     -->

example/android/app/src/main/AndroidManifest.xml

@@ -1,25 +1,21 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.github.xvrh.lottie.example">
-   <application
+    package="com.github.xvrh.lottie.sample">
+    <!-- io.flutter.app.FlutterApplication is an android.app.Application that
+         calls FlutterMain.startInitialization(this); in its onCreate method.
+         In most cases you can leave this as-is, but you if you want to provide
+         additional functionality it is fine to subclass or reimplement
+         FlutterApplication and put your custom class here. -->
+    <application
+        android:name="io.flutter.app.FlutterApplication"
         android:label="example"
-        android:name="${applicationName}"
         android:icon="@mipmap/ic_launcher">
         <activity
             android:name=".MainActivity"
-            android:exported="true"
             android:launchMode="singleTop"
             android:theme="@style/LaunchTheme"
             android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
             android:hardwareAccelerated="true"
             android:windowSoftInputMode="adjustResize">
-            <!-- Specifies an Android theme to apply to this Activity as soon as
-                 the Android process has started. This theme is visible to the user
-                 while the Flutter UI initializes. After that, this theme continues
-                 to determine the Window background behind the Flutter UI. -->
-            <meta-data
-              android:name="io.flutter.embedding.android.NormalTheme"
-              android:resource="@style/NormalTheme"
-              />
             <intent-filter>
                 <action android:name="android.intent.action.MAIN"/>
                 <category android:name="android.intent.category.LAUNCHER"/>

example/android/app/src/main/kotlin/com/github/xvrh/lottie/example/MainActivity.kt

@@ -1,6 +0,0 @@
-package com.github.xvrh.lottie.example
-
-import io.flutter.embedding.android.FlutterActivity
-
-class MainActivity: FlutterActivity() {
-}

example/android/app/src/main/kotlin/com/github/xvrh/lottie/sample/MainActivity.kt

@@ -0,0 +1,12 @@
+package com.github.xvrh.lottie.sample
+
+import androidx.annotation.NonNull;
+import io.flutter.embedding.android.FlutterActivity
+import io.flutter.embedding.engine.FlutterEngine
+import io.flutter.plugins.GeneratedPluginRegistrant
+
+class MainActivity: FlutterActivity() {
+    override fun configureFlutterEngine(@NonNull flutterEngine: FlutterEngine) {
+        GeneratedPluginRegistrant.registerWith(flutterEngine);
+    }
+}

example/android/app/src/main/res/drawable-v21/launch_background.xml

@@ -1,12 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!-- Modify this file to customize your launch splash screen -->
-<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
-    <item android:drawable="?android:colorBackground" />
-
-    <!-- You can insert your own image assets here -->
-    <!-- <item>
-        <bitmap
-            android:gravity="center"
-            android:src="@mipmap/launch_image" />
-    </item> -->
-</layer-list>

example/android/app/src/main/res/values-night/styles.xml

@@ -1,18 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-    <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is on -->
-    <style name="LaunchTheme" parent="@android:style/Theme.Black.NoTitleBar">
-        <!-- Show a splash screen on the activity. Automatically removed when
-             Flutter draws its first frame -->
-        <item name="android:windowBackground">@drawable/launch_background</item>
-    </style>
-    <!-- Theme applied to the Android Window as soon as the process has started.
-         This theme determines the color of the Android Window while your
-         Flutter UI initializes, as well as behind your Flutter UI while its
-         running.
-
-         This Theme is only used starting with V2 of Flutter's Android embedding. -->
-    <style name="NormalTheme" parent="@android:style/Theme.Black.NoTitleBar">
-        <item name="android:windowBackground">?android:colorBackground</item>
-    </style>
-</resources>

example/android/app/src/main/res/values/styles.xml

@@ -1,18 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is off -->
-    <style name="LaunchTheme" parent="@android:style/Theme.Light.NoTitleBar">
+    <style name="LaunchTheme" parent="@android:style/Theme.Black.NoTitleBar">
         <!-- Show a splash screen on the activity. Automatically removed when
              Flutter draws its first frame -->
         <item name="android:windowBackground">@drawable/launch_background</item>
     </style>
-    <!-- Theme applied to the Android Window as soon as the process has started.
-         This theme determines the color of the Android Window while your
-         Flutter UI initializes, as well as behind your Flutter UI while its
-         running.
-
-         This Theme is only used starting with V2 of Flutter's Android embedding. -->
-    <style name="NormalTheme" parent="@android:style/Theme.Light.NoTitleBar">
-        <item name="android:windowBackground">?android:colorBackground</item>
-    </style>
 </resources>

example/android/app/src/profile/AndroidManifest.xml

@@ -1,5 +1,5 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.github.xvrh.lottie.example">
+    package="com.github.xvrh.lottie.sample">
     <!-- Flutter needs it to communicate with the running application
          to allow setting breakpoints, to provide hot reload, etc.
     -->

example/android/build.gradle

@@ -1,12 +1,12 @@
 buildscript {
-    ext.kotlin_version = '1.6.10'
+    ext.kotlin_version = '1.3.50'
     repositories {
         google()
-        mavenCentral()
+        jcenter()
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:4.1.0'
+        classpath 'com.android.tools.build:gradle:3.5.0'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
     }
 }
@@ -14,7 +14,7 @@ buildscript {
 allprojects {
     repositories {
         google()
-        mavenCentral()
+        jcenter()
     }
 }
 

example/android/gradle.properties

@@ -1,3 +1,4 @@
 org.gradle.jvmargs=-Xmx1536M
+android.enableR8=true
 android.useAndroidX=true
 android.enableJetifier=true

example/android/gradle/wrapper/gradle-wrapper.properties

@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.7-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.6.2-all.zip

example/android/settings.gradle

@@ -1,11 +1,15 @@
 include ':app'
 
-def localPropertiesFile = new File(rootProject.projectDir, "local.properties")
-def properties = new Properties()
+def flutterProjectRoot = rootProject.projectDir.parentFile.toPath()
 
-assert localPropertiesFile.exists()
-localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) }
+def plugins = new Properties()
+def pluginsFile = new File(flutterProjectRoot.toFile(), '.flutter-plugins')
+if (pluginsFile.exists()) {
+    pluginsFile.withReader('UTF-8') { reader -> plugins.load(reader) }
+}
 
-def flutterSdkPath = properties.getProperty("flutter.sdk")
-assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
-apply from: "$flutterSdkPath/packages/flutter_tools/gradle/app_plugin_loader.gradle"
+plugins.each { name, path ->
+    def pluginDirectory = flutterProjectRoot.resolve(path).resolve('android').toFile()
+    include ":$name"
+    project(":$name").projectDir = pluginDirectory
+}

example/assets/Tests/AnimatedShadow.json

@@ -1 +0,0 @@
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example/assets/Tests/GradientStrokeBlur.json

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example/assets/Tests/Rect1.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/Rect9.json

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example/assets/Tests/ReversedStar.json

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-{
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example/assets/Tests/RoundedCorners.json

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example/assets/Tests/StaticShadow.json

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example/assets/Tests/StrokeBlur.json

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example/assets/Tests/TimeStretchPrecomp2.json

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example/assets/Tests/rect2.json

@@ -1 +0,0 @@
-{"assets":[],"layers":[{"ddd":0,"ind":0,"ty":4,"nm":"Shape Layer 1","parent":1,"ks":{"o":{"k":100},"r":{"k":0},"p":{"k":[100,100,0]},"a":{"k":[0,0,0]},"s":{"k":[100,100,100]}},"ao":0,"shapes":[{"ty":"gr","it":[{"ty":"rc","d":1,"s":{"k":[{"i":{"x":[0.667,0.667],"y":[1,1]},"o":{"x":[0.333,0.333],"y":[0,0]},"n":["0p667_1_0p333_0","0p667_1_0p333_0"],"t":0,"s":[85.714,85.714],"e":[52.714,52.714]},{"i":{"x":[0.667,0.667],"y":[1,1]},"o":{"x":[0.333,0.333],"y":[0,0]},"n":["0p667_1_0p333_0","0p667_1_0p333_0"],"t":16,"s":[52.714,52.714],"e":[85.714,85.714]},{"t":35}]},"p":{"k":[0,0]},"r":{"k":0},"nm":"Rectangle Path 1","mn":"ADBE Vector Shape - Rect"},{"ty":"st","c":{"k":[0,0,0,1]},"o":{"k":100},"w":{"k":14},"lc":1,"lj":1,"ml":4,"nm":"Stroke 1","mn":"ADBE Vector Graphic - Stroke"},{"ty":"tr","p":{"k":[2.198,1.099],"ix":2},"a":{"k":[0,0],"ix":1},"s":{"k":[100,100],"ix":3},"r":{"k":0,"ix":6},"o":{"k":100,"ix":7},"sk":{"k":0,"ix":4},"sa":{"k":0,"ix":5},"nm":"Transform"}],"nm":"Rectangle 1","np":2,"mn":"ADBE Vector Group"}],"ip":0,"op":36,"st":0,"bm":0,"sr":1},{"ddd":0,"ind":1,"ty":1,"nm":"White Solid 1","ks":{"o":{"k":100},"r":{"k":0},"p":{"k":[45,45,0]},"a":{"k":[100,100,0]},"s":{"k":[45,45,100]}},"ao":0,"sw":200,"sh":200,"sc":"#ffffff","ip":0,"op":36,"st":0,"bm":0,"sr":1}],"v":"4.5.4","ddd":0,"ip":0,"op":36,"fr":60,"w":90,"h":90}

example/ios/Flutter/Debug.xcconfig

@@ -1,3 +1,2 @@
-#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

@@ -1,3 +1,2 @@
-#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/Runner.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist

@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>IDEDidComputeMac32BitWarning</key>
-	<true/>
-</dict>
-</plist>

example/ios/Runner.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings

@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>PreviewsEnabled</key>
-	<false/>
-</dict>
-</plist>

example/ios/Runner.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings

@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>PreviewsEnabled</key>
-	<false/>
-</dict>
-</plist>

example/lib/examples/alert_dialog.dart

@@ -2,11 +2,9 @@ import 'package:flutter/material.dart';
 import 'package:flutter/scheduler.dart';
 import 'package:lottie/lottie.dart';
 
-void main() => runApp(const App());
+void main() => runApp(App());
 
 class App extends StatelessWidget {
-  const App({Key? key}) : super(key: key);
-
   @override
   Widget build(BuildContext context) {
     return MaterialApp(
@@ -44,6 +42,6 @@ class __PageState extends State<_Page> {
 
   @override
   Widget build(BuildContext context) {
-    return const Center();
+    return Center();
   }
 }

example/lib/examples/animate_no_repeat.dart

@@ -2,11 +2,11 @@ import 'package:flutter/material.dart';
 import 'package:lottie/lottie.dart';
 
 void main() async {
-  runApp(const App());
+  runApp(App());
 }
 
 class App extends StatelessWidget {
-  const App({Key? key}) : super(key: key);
+  const App({Key key}) : super(key: key);
 
   @override
   Widget build(BuildContext context) {

example/lib/examples/animation_controller.dart

@@ -1,17 +1,15 @@
 import 'package:flutter/material.dart';
 import 'package:lottie/lottie.dart';
 
-void main() => runApp(const MyApp());
+void main() => runApp(MyApp());
 
 class MyApp extends StatefulWidget {
-  const MyApp({Key? key}) : super(key: key);
-
   @override
-  State<MyApp> createState() => _MyAppState();
+  _MyAppState createState() => _MyAppState();
 }
 
 class _MyAppState extends State<MyApp> with TickerProviderStateMixin {
-  late final AnimationController _controller;
+  AnimationController _controller;
 
   @override
   void initState() {

example/lib/examples/animation_full_control.dart

@@ -9,17 +9,15 @@ import 'package:lottie/lottie.dart';
 /// 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());
+void main() => runApp(MyApp());
 
 class MyApp extends StatefulWidget {
-  const MyApp({Key? key}) : super(key: key);
-
   @override
-  State<MyApp> createState() => _MyAppState();
+  _MyAppState createState() => _MyAppState();
 }
 
 class _MyAppState extends State<MyApp> with TickerProviderStateMixin {
-  late final AnimationController _controller;
+  AnimationController _controller;
 
   @override
   void initState() {
@@ -45,7 +43,7 @@ class _MyAppState extends State<MyApp> with TickerProviderStateMixin {
     return MaterialApp(
       home: Scaffold(
         appBar: AppBar(
-          title: const Text('Animation control'),
+          title: Text('Animation control'),
         ),
         body: Column(
           children: <Widget>[
@@ -60,27 +58,27 @@ class _MyAppState extends State<MyApp> with TickerProviderStateMixin {
                 });
               },
             ),
-            Text(_controller.value.toStringAsFixed(2)),
+            Text('${_controller.value.toStringAsFixed(2)}'),
             Row(
               mainAxisAlignment: MainAxisAlignment.center,
               children: [
                 // Play backward
                 IconButton(
-                  icon: const Icon(Icons.arrow_left),
+                  icon: Icon(Icons.arrow_left),
                   onPressed: () {
                     _controller.reverse();
                   },
                 ),
                 // Pause
                 IconButton(
-                  icon: const Icon(Icons.pause),
+                  icon: Icon(Icons.pause),
                   onPressed: () {
                     _controller.stop();
                   },
                 ),
                 // Play forward
                 IconButton(
-                  icon: const Icon(Icons.arrow_right),
+                  icon: Icon(Icons.arrow_right),
                   onPressed: () {
                     _controller.forward();
                   },
@@ -88,7 +86,8 @@ class _MyAppState extends State<MyApp> with TickerProviderStateMixin {
               ],
             ),
             const SizedBox(height: 30),
-            ElevatedButton(
+            RaisedButton(
+              child: Text('Loop between frames'),
               onPressed: () {
                 // Loop between 2 specifics frames
 
@@ -98,10 +97,9 @@ class _MyAppState extends State<MyApp> with TickerProviderStateMixin {
                   min: start,
                   max: stop,
                   reverse: true,
-                  period: _controller.duration! * (stop - start),
+                  period: _controller.duration * (stop - start),
                 );
               },
-              child: const Text('Loop between frames'),
             ),
           ],
         ),

example/lib/examples/blur.dart

@@ -1,30 +0,0 @@
-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

@@ -1,15 +1,14 @@
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
+import 'package:flutter/widgets.dart';
 import 'package:lottie/lottie.dart';
 
-void main() => runApp(const MyApp());
+void main() => runApp(MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
-
   @override
   Widget build(BuildContext context) {
-    return const MaterialApp(
+    return MaterialApp(
       home: Scaffold(
         body: MyWidget(),
       ),
@@ -18,14 +17,12 @@ class MyApp extends StatelessWidget {
 }
 
 class MyWidget extends StatefulWidget {
-  const MyWidget({Key? key}) : super(key: key);
-
   @override
-  State<MyWidget> createState() => _MyWidgetState();
+  _MyWidgetState createState() => _MyWidgetState();
 }
 
 class _MyWidgetState extends State<MyWidget> {
-  late final Future<LottieComposition> _composition;
+  Future<LottieComposition> _composition;
 
   @override
   void initState() {
@@ -49,7 +46,7 @@ class _MyWidgetState extends State<MyWidget> {
         if (composition != null) {
           return CustomDrawer(composition);
         } else {
-          return const Center(child: CircularProgressIndicator());
+          return Center(child: CircularProgressIndicator());
         }
       },
     );
@@ -60,13 +57,13 @@ 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: const Size(400, 400),
+      size: Size(400, 400),
     );
   }
 }

example/lib/examples/custom_load.dart

@@ -1,15 +1,14 @@
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
+import 'package:flutter/widgets.dart';
 import 'package:lottie/lottie.dart';
 
-void main() => runApp(const MyApp());
+void main() => runApp(MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
-
   @override
   Widget build(BuildContext context) {
-    return const MaterialApp(
+    return MaterialApp(
       home: Scaffold(
         body: MyWidget(),
       ),
@@ -19,14 +18,12 @@ class MyApp extends StatelessWidget {
 
 //--- example
 class MyWidget extends StatefulWidget {
-  const MyWidget({Key? key}) : super(key: key);
-
   @override
-  State<MyWidget> createState() => _MyWidgetState();
+  _MyWidgetState createState() => _MyWidgetState();
 }
 
 class _MyWidgetState extends State<MyWidget> {
-  late final Future<LottieComposition> _composition;
+  Future<LottieComposition> _composition;
 
   @override
   void initState() {
@@ -49,7 +46,7 @@ class _MyWidgetState extends State<MyWidget> {
         if (composition != null) {
           return Lottie(composition: composition);
         } else {
-          return const Center(child: CircularProgressIndicator());
+          return Center(child: CircularProgressIndicator());
         }
       },
     );

example/lib/examples/drop_shadow.dart

@@ -1,35 +0,0 @@
-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

@@ -1,16 +1,17 @@
+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());
+  runApp(App());
 }
 
 class App extends StatefulWidget {
-  const App({Key? key}) : super(key: key);
+  const App({Key key}) : super(key: key);
 
   @override
-  State<App> createState() => _AppState();
+  _AppState createState() => _AppState();
 }
 
 class _AppState extends State<App> with TickerProviderStateMixin {
@@ -32,7 +33,7 @@ class _AppState extends State<App> with TickerProviderStateMixin {
       home: Scaffold(
         backgroundColor: Colors.white,
         appBar: AppBar(
-          title: const Text('Dynamic properties'),
+          title: Text('Dynamic properties'),
         ),
         body: ListView(
           children: <Widget>[
@@ -49,7 +50,7 @@ class _AppState extends State<App> with TickerProviderStateMixin {
               value: _useDelegates,
               onChanged: (newValue) {
                 setState(() {
-                  _useDelegates = newValue!;
+                  _useDelegates = newValue;
                 });
               },
             ),
@@ -62,7 +63,7 @@ class _AppState extends State<App> with TickerProviderStateMixin {
               },
             ),
             Center(
-              child: SizedBox(
+              child: Container(
                 width: 500,
                 child: ColorPicker(
                   pickerColor: _color,
@@ -71,7 +72,7 @@ class _AppState extends State<App> with TickerProviderStateMixin {
                       _color = newColor;
                     });
                   },
-                  labelTypes: const [],
+                  showLabel: false,
                   enableAlpha: false,
                   pickerAreaHeightPercent: 0.8,
                 ),

example/lib/examples/dynamic_text.dart

@@ -3,18 +3,18 @@ import 'package:flutter/material.dart';
 import 'package:lottie/lottie.dart';
 
 void main() async {
-  runApp(const App());
+  runApp(App());
 }
 
 class App extends StatefulWidget {
-  const App({Key? key}) : super(key: key);
+  const App({Key key}) : super(key: key);
 
   @override
-  State<App> createState() => _AppState();
+  _AppState createState() => _AppState();
 }
 
 class _AppState extends State<App> with TickerProviderStateMixin {
-  late final TextEditingController _textController;
+  TextEditingController _textController;
 
   @override
   void initState() {
@@ -36,7 +36,7 @@ class _AppState extends State<App> with TickerProviderStateMixin {
       home: Scaffold(
         backgroundColor: Colors.white,
         appBar: AppBar(
-          title: const Text('Dynamic text'),
+          title: Text('Dynamic text'),
         ),
         body: Center(
           child: Column(
@@ -54,7 +54,7 @@ class _AppState extends State<App> with TickerProviderStateMixin {
                   ),
                 ),
               ),
-              SizedBox(
+              Container(
                 width: 300,
                 child: CupertinoTextField(
                   controller: _textController,

example/lib/examples/error_builder.dart

@@ -1,31 +0,0 @@
-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

@@ -1,11 +1,9 @@
 import 'package:flutter/material.dart';
 import 'package:lottie/lottie.dart';
 
-void main() => runApp(const MyApp());
+void main() => runApp(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

@@ -2,18 +2,18 @@ import 'package:flutter/material.dart';
 import 'package:lottie/lottie.dart';
 
 void main() async {
-  runApp(const App());
+  runApp(App());
 }
 
 class App extends StatefulWidget {
-  const App({Key? key}) : super(key: key);
+  const App({Key key}) : super(key: key);
 
   @override
-  State<App> createState() => _AppState();
+  _AppState createState() => _AppState();
 }
 
 class _AppState extends State<App> with TickerProviderStateMixin {
-  late final AnimationController _animationController;
+  AnimationController _animationController;
   bool _showAnimation = true;
 
   @override

example/lib/examples/markers.dart

@@ -5,18 +5,18 @@ import 'package:lottie/lottie.dart';
 /// 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());
+  runApp(App());
 }
 
 class App extends StatefulWidget {
-  const App({Key? key}) : super(key: key);
+  const App({Key key}) : super(key: key);
 
   @override
-  State<App> createState() => _AppState();
+  _AppState createState() => _AppState();
 }
 
 class _AppState extends State<App> with TickerProviderStateMixin {
-  late final Future<LottieComposition> _composition;
+  Future<LottieComposition> _composition;
 
   @override
   void initState() {
@@ -30,14 +30,14 @@ class _AppState extends State<App> with TickerProviderStateMixin {
       theme: ThemeData.dark(),
       home: Scaffold(
         appBar: AppBar(
-          title: const Text('Markers'),
+          title: 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!);
+            if (snapshot.hasError) return ErrorWidget(snapshot.error);
+            if (!snapshot.hasData) return CircularProgressIndicator();
+            return _LottieDetails(snapshot.data);
           },
         ),
       ),
@@ -48,7 +48,7 @@ class _AppState extends State<App> with TickerProviderStateMixin {
 class _LottieDetails extends StatefulWidget {
   final LottieComposition composition;
 
-  const _LottieDetails(this.composition, {Key? key}) : super(key: key);
+  const _LottieDetails(this.composition, {Key key}) : super(key: key);
 
   @override
   _LottieDetailsState createState() => _LottieDetailsState();
@@ -56,7 +56,7 @@ class _LottieDetails extends StatefulWidget {
 
 class _LottieDetailsState extends State<_LottieDetails>
     with TickerProviderStateMixin {
-  late final AnimationController _controller;
+  AnimationController _controller;
 
   @override
   void initState() {
@@ -80,24 +80,24 @@ class _LottieDetailsState extends State<_LottieDetails>
           height: 150,
         ),
         ListTile(
-          title: const Text('Composition start frame'),
+          title: Text('Composition start frame'),
           trailing: Text(widget.composition.startFrame.toStringAsFixed(1)),
         ),
         ListTile(
-          title: const Text('Composition duration'),
+          title: Text('Composition duration'),
           trailing: Text(widget.composition.durationFrames.toStringAsFixed(1)),
         ),
-        ElevatedButton(
+        RaisedButton(
+          child: Text('touchDownEnd - touchUpCancel'),
           onPressed: () => _playBetween('touchDownEnd', 'touchUpCancel'),
-          child: const Text('touchDownEnd - touchUpCancel'),
         ),
-        ElevatedButton(
+        RaisedButton(
+          child: Text('touchDownStart - touchDownEnd'),
           onPressed: () => _playBetween('touchDownStart', 'touchDownEnd'),
-          child: const Text('touchDownStart - touchDownEnd'),
         ),
-        ElevatedButton(
+        RaisedButton(
+          child: Text('touchDownEnd - touchUpEnd'),
           onPressed: () => _playBetween('touchDownEnd', 'touchUpEnd'),
-          child: const Text('touchDownEnd - touchUpEnd'),
         ),
         for (var marker in widget.composition.markers)
           ListTile(
@@ -112,8 +112,8 @@ class _LottieDetailsState extends State<_LottieDetails>
   }
 
   void _playBetween(String marker1, String marker2) {
-    var start = widget.composition.getMarker(marker1)!.start;
-    var end = widget.composition.getMarker(marker2)!.start;
+    var start = widget.composition.getMarker(marker1).start;
+    var end = widget.composition.getMarker(marker2).start;
 
     _controller.value = start;
     _controller.animateTo(end,

example/lib/examples/repeat.dart

@@ -1,65 +0,0 @@
-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
-  State<MyApp> 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

@@ -8,19 +8,19 @@ void main() async {
     ..level = Level.ALL
     ..onRecord.listen(print);
 
-  runApp(const App());
+  runApp(App());
 }
 
 class App extends StatefulWidget {
-  const App({Key? key}) : super(key: key);
+  const App({Key key}) : super(key: key);
 
   @override
-  State<App> createState() => _AppState();
+  _AppState createState() => _AppState();
 }
 
 class _AppState extends State<App> with TickerProviderStateMixin {
   int _index = 0;
-  late final AnimationController _animationController;
+  AnimationController _animationController;
 
   @override
   void initState() {

example/lib/examples/save_frames.dart

@@ -7,17 +7,15 @@ 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());
+void main() => runApp(MyApp());
 
 class MyApp extends StatefulWidget {
-  const MyApp({Key? key}) : super(key: key);
-
   @override
-  State<MyApp> createState() => _MyAppState();
+  _MyAppState createState() => _MyAppState();
 }
 
 class _MyAppState extends State<MyApp> {
-  List<File>? _frames;
+  List<File> _frames;
 
   @override
   Widget build(BuildContext context) {
@@ -28,15 +26,15 @@ class _MyAppState extends State<MyApp> {
           child: Column(
             crossAxisAlignment: CrossAxisAlignment.stretch,
             children: [
-              ElevatedButton(
+              RaisedButton(
+                child: Text('Export all frames'),
                 onPressed: _export,
-                child: const Text('Export all frames'),
               ),
               if (_frames != null)
                 Expanded(
                   child: GridView.count(
                     crossAxisCount: 10,
-                    children: [..._frames!.map((f) => Image.file(f))],
+                    children: [..._frames.map((f) => Image.file(f))],
                   ),
                 )
             ],
@@ -53,7 +51,7 @@ class _MyAppState extends State<MyApp> {
     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));
+        size: Size(50, 50));
 
     setState(() {
       _frames = frames;
@@ -62,7 +60,7 @@ class _MyAppState extends State<MyApp> {
 }
 
 Future<List<File>> exportFrames(LottieComposition composition, String directory,
-    {required Size size, required List<double> progresses}) async {
+    {@required Size size, @required List<double> progresses}) async {
   var drawable = LottieDrawable(composition);
 
   var frames = <File>[];
@@ -89,7 +87,7 @@ Future<ByteData> _toByteData(LottieDrawable drawable, Size size) async {
 
   var picture = pictureRecorder.endRecording();
   var image = await picture.toImage(size.width.toInt(), size.height.toInt());
-  return (await image.toByteData(format: ImageByteFormat.png))!;
+  return await image.toByteData(format: ImageByteFormat.png);
 }
 
 Future<String> _createTempDirectory(String folderName) async {

example/lib/examples/simple_dynamic_properties.dart

@@ -1,11 +1,9 @@
 import 'package:flutter/material.dart';
 import 'package:lottie/lottie.dart';
 
-void main() => runApp(const MyApp());
+void main() => runApp(MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
-
   @override
   Widget build(BuildContext context) {
     return MaterialApp(
@@ -37,7 +35,7 @@ class _Animation extends StatelessWidget {
           ),
           ValueDelegate.position(
             const ['Shape Layer 1', 'Rectangle', '**'],
-            relative: const Offset(100, 200),
+            relative: Offset(100, 200),
           ),
         ],
       ),

example/lib/main.dart

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

example/lib/main_app.dart

@@ -1,60 +1,52 @@
+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());
+  runApp(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'),
+          title: 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,
-                      );
-                    },
-                  ),
+        body: GridView.builder(
+          itemCount: files.length,
+          gridDelegate:
+              SliverGridDelegateWithFixedCrossAxisCount(crossAxisCount: 4),
+          itemBuilder: (context, index) {
+            var assetName = files[index];
+            return GestureDetector(
+              child: _Item(
+                child: Lottie.asset(
+                  assetName,
+                  frameBuilder: (context, child, composition) {
+                    return AnimatedOpacity(
+                      child: child,
+                      opacity: composition == null ? 0 : 1,
+                      duration: const Duration(seconds: 1),
+                      curve: Curves.easeOut,
+                    );
+                  },
                 ),
-              );
-            },
-          ),
+              ),
+              onTap: () {
+                Navigator.of(context).push(MaterialPageRoute<void>(
+                    builder: (context) => Detail(assetName)));
+              },
+            );
+          },
         ),
       ),
     );
@@ -64,7 +56,7 @@ class App extends StatelessWidget {
 class _Item extends StatelessWidget {
   final Widget child;
 
-  const _Item({Key? key, required this.child}) : super(key: key);
+  const _Item({Key key, this.child}) : super(key: key);
 
   @override
   Widget build(BuildContext context) {
@@ -73,11 +65,11 @@ class _Item extends StatelessWidget {
       child: Container(
         decoration: BoxDecoration(
             color: Colors.white,
-            borderRadius: const BorderRadius.all(Radius.circular(10)),
+            borderRadius: BorderRadius.all(Radius.circular(10)),
             boxShadow: [
               BoxShadow(
                   color: Colors.black.withOpacity(0.1),
-                  offset: const Offset(2, 2),
+                  offset: Offset(2, 2),
                   blurRadius: 5)
             ]),
         child: child,
@@ -89,18 +81,26 @@ class _Item extends StatelessWidget {
 class Detail extends StatefulWidget {
   final String assetName;
 
-  const Detail(this.assetName, {Key? key}) : super(key: key);
+  const Detail(this.assetName, {Key key}) : super(key: key);
 
   @override
-  State<Detail> createState() => _DetailState();
+  _DetailState createState() => _DetailState();
 }
 
 class _DetailState extends State<Detail> with TickerProviderStateMixin {
-  late final _controller = AnimationController(vsync: this);
+  AnimationController _controller;
+
+  @override
+  void initState() {
+    super.initState();
+
+    _controller = AnimationController(vsync: this);
+  }
 
   @override
   void dispose() {
     _controller.dispose();
+
     super.dispose();
   }
 
@@ -108,7 +108,7 @@ class _DetailState extends State<Detail> with TickerProviderStateMixin {
   Widget build(BuildContext context) {
     return Scaffold(
       appBar: AppBar(
-        title: Text(widget.assetName),
+        title: Text('${widget.assetName}'),
       ),
       body: SingleChildScrollView(
         child: Column(

example/lib/sizing_example.dart

@@ -13,14 +13,14 @@ void main() async {
 class App extends StatelessWidget {
   final LottieComposition composition;
 
-  const App({Key? key, required this.composition}) : super(key: key);
+  const App({Key key, this.composition}) : super(key: key);
 
   @override
   Widget build(BuildContext context) {
     return MaterialApp(
       home: Scaffold(
         appBar: AppBar(
-          title: const Text(''),
+          title: 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 {
-  late AnimationController _controller;
+  AnimationController _controller;
 
   @override
   void initState() {

example/lib/src/all_files.g.dart

@@ -108,17 +108,14 @@ final files = [
   'assets/Tests/hd.json',
   'assets/Tests/map.zip',
   'assets/TwitterHeartButton.json',
-  'assets/battery_optimizations.json',
+  'assets/_loading_indicator.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/___.json',
   'assets/lottiefiles/a_mountain.json',
   'assets/lottiefiles/accept_arrows.json',
   'assets/lottiefiles/airbnb.json',
@@ -349,9 +346,7 @@ final files = [
   '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/_hurricane.json',
   'assets/weather/fog.json',
   'assets/weather/hurricane.json',
   'assets/weather/thunder-storm.json',

example/lib/tests/airbnb.dart

@@ -2,18 +2,18 @@ import 'package:flutter/material.dart';
 import 'package:lottie/lottie.dart';
 
 void main() async {
-  runApp(const App());
+  runApp(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: const Text(''),
+          title: Text(''),
         ),
         body: SingleChildScrollView(
           child: Center(

example/lib/tests/we_accept.dart

@@ -2,23 +2,22 @@ import 'package:flutter/material.dart';
 import 'package:lottie/lottie.dart';
 
 void main() async {
-  runApp(const App());
+  runApp(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: const Text(''),
+          title: Text(''),
         ),
         body: GridView(
-          gridDelegate: const SliverGridDelegateWithFixedCrossAxisCount(
-            crossAxisCount: 4,
-          ),
+          gridDelegate:
+              SliverGridDelegateWithFixedCrossAxisCount(crossAxisCount: 4),
           children: [
             Lottie.asset(
               'assets/Tests/WeAccept.json',

example/macos/Flutter/Flutter-Debug.xcconfig

@@ -1,3 +1,2 @@
-#include? "Pods/Target Support Files/Pods-Runner/Pods-Runner.debug.xcconfig"
 #include "Pods/Target Support Files/Pods-Runner/Pods-Runner.debug.xcconfig"
 #include "ephemeral/Flutter-Generated.xcconfig"

example/macos/Flutter/Flutter-Release.xcconfig

@@ -1,3 +1,2 @@
-#include? "Pods/Target Support Files/Pods-Runner/Pods-Runner.release.xcconfig"
 #include "Pods/Target Support Files/Pods-Runner/Pods-Runner.release.xcconfig"
 #include "ephemeral/Flutter-Generated.xcconfig"

example/macos/Podfile

@@ -9,32 +9,74 @@ project 'Runner', {
   'Release' => :release,
 }
 
-def flutter_root
-  generated_xcode_build_settings_path = File.expand_path(File.join('..', 'Flutter', 'ephemeral', 'Flutter-Generated.xcconfig'), __FILE__)
-  unless File.exist?(generated_xcode_build_settings_path)
-    raise "#{generated_xcode_build_settings_path} must exist. If you're running pod install manually, make sure \"flutter pub get\" is executed first"
+def parse_KV_file(file, separator='=')
+  file_abs_path = File.expand_path(file)
+  if !File.exists? file_abs_path
+    return [];
   end
-
-  File.foreach(generated_xcode_build_settings_path) do |line|
-    matches = line.match(/FLUTTER_ROOT\=(.*)/)
-    return matches[1].strip if matches
-  end
-  raise "FLUTTER_ROOT not found in #{generated_xcode_build_settings_path}. Try deleting Flutter-Generated.xcconfig, then run \"flutter pub get\""
+  pods_ary = []
+  skip_line_start_symbols = ["#", "/"]
+  File.foreach(file_abs_path) { |line|
+      next if skip_line_start_symbols.any? { |symbol| line =~ /^\s*#{symbol}/ }
+      plugin = line.split(pattern=separator)
+      if plugin.length == 2
+        podname = plugin[0].strip()
+        path = plugin[1].strip()
+        podpath = File.expand_path("#{path}", file_abs_path)
+        pods_ary.push({:name => podname, :path => podpath});
+      else
+        puts "Invalid plugin specification: #{line}"
+      end
+  }
+  return pods_ary
 end
 
-require File.expand_path(File.join('packages', 'flutter_tools', 'bin', 'podhelper'), flutter_root)
-
-flutter_macos_podfile_setup
+def pubspec_supports_macos(file)
+  file_abs_path = File.expand_path(file)
+  if !File.exists? file_abs_path
+    return false;
+  end
+  File.foreach(file_abs_path) { |line|
+    return true if line =~ /^\s*macos:/
+  }
+  return false
+end
 
 target 'Runner' do
   use_frameworks!
   use_modular_headers!
 
-  flutter_install_all_macos_pods File.dirname(File.realpath(__FILE__))
+  # Prepare symlinks folder. We use symlinks to avoid having Podfile.lock
+  # referring to absolute paths on developers' machines.
+  ephemeral_dir = File.join('Flutter', 'ephemeral')
+  symlink_dir = File.join(ephemeral_dir, '.symlinks')
+  symlink_plugins_dir = File.join(symlink_dir, 'plugins')
+  system("rm -rf #{symlink_dir}")
+  system("mkdir -p #{symlink_plugins_dir}")
+
+  # Flutter Pods
+  generated_xcconfig = parse_KV_file(File.join(ephemeral_dir, 'Flutter-Generated.xcconfig'))
+  if generated_xcconfig.empty?
+    puts "Flutter-Generated.xcconfig must exist. If you're running pod install manually, make sure flutter packages get is executed first."
+  end
+  generated_xcconfig.map { |p|
+    if p[:name] == 'FLUTTER_FRAMEWORK_DIR'
+      symlink = File.join(symlink_dir, 'flutter')
+      File.symlink(File.dirname(p[:path]), symlink)
+      pod 'FlutterMacOS', :path => File.join(symlink, File.basename(p[:path]))
+    end
+  }
+
+  # Plugin Pods
+  plugin_pods = parse_KV_file('../.flutter-plugins')
+  plugin_pods.map { |p|
+    symlink = File.join(symlink_plugins_dir, p[:name])
+    File.symlink(p[:path], symlink)
+    if pubspec_supports_macos(File.join(symlink, 'pubspec.yaml'))
+      pod p[:name], :path => File.join(symlink, 'macos')
+    end
+  }
 end
 
-post_install do |installer|
-  installer.pods_project.targets.each do |target|
-    flutter_additional_macos_build_settings(target)
-  end
-end
+# Prevent Cocoapods from embedding a second Flutter framework and causing an error with the new Xcode build system.
+install! 'cocoapods', :disable_input_output_paths => true

example/macos/Podfile.lock

@@ -1,22 +1,27 @@
 PODS:
   - FlutterMacOS (1.0.0)
+  - path_provider (0.0.1)
   - path_provider_macos (0.0.1):
     - FlutterMacOS
 
 DEPENDENCIES:
-  - FlutterMacOS (from `Flutter/ephemeral`)
+  - FlutterMacOS (from `Flutter/ephemeral/.symlinks/flutter/darwin-x64-profile`)
+  - path_provider (from `Flutter/ephemeral/.symlinks/plugins/path_provider/macos`)
   - path_provider_macos (from `Flutter/ephemeral/.symlinks/plugins/path_provider_macos/macos`)
 
 EXTERNAL SOURCES:
   FlutterMacOS:
-    :path: Flutter/ephemeral
+    :path: Flutter/ephemeral/.symlinks/flutter/darwin-x64-profile
+  path_provider:
+    :path: Flutter/ephemeral/.symlinks/plugins/path_provider/macos
   path_provider_macos:
     :path: Flutter/ephemeral/.symlinks/plugins/path_provider_macos/macos
 
 SPEC CHECKSUMS:
-  FlutterMacOS: 57701585bf7de1b3fc2bb61f6378d73bbdea8424
-  path_provider_macos: 160cab0d5461f0c0e02995469a98f24bdb9a3f1f
+  FlutterMacOS: 15bea8a44d2fa024068daa0140371c020b4b6ff9
+  path_provider: e0848572d1d38b9a7dd099e79cf83f5b7e2cde9f
+  path_provider_macos: a0a3fd666cb7cd0448e936fb4abad4052961002b
 
-PODFILE CHECKSUM: 6eac6b3292e5142cfc23bdeb71848a40ec51c14c
+PODFILE CHECKSUM: d8ba9b3e9e93c62c74a660b46c6fcb09f03991a7
 
-COCOAPODS: 1.11.3
+COCOAPODS: 1.9.1

example/macos/Runner.xcodeproj/project.pbxproj

@@ -26,6 +26,10 @@
 		33CC10F32044A3C60003C045 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 33CC10F22044A3C60003C045 /* Assets.xcassets */; };
 		33CC10F62044A3C60003C045 /* MainMenu.xib in Resources */ = {isa = PBXBuildFile; fileRef = 33CC10F42044A3C60003C045 /* MainMenu.xib */; };
 		33CC11132044BFA00003C045 /* MainFlutterWindow.swift in Sources */ = {isa = PBXBuildFile; fileRef = 33CC11122044BFA00003C045 /* MainFlutterWindow.swift */; };
+		33D1A10422148B71006C7A3E /* FlutterMacOS.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 33D1A10322148B71006C7A3E /* FlutterMacOS.framework */; };
+		33D1A10522148B93006C7A3E /* FlutterMacOS.framework in Bundle Framework */ = {isa = PBXBuildFile; fileRef = 33D1A10322148B71006C7A3E /* FlutterMacOS.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
+		D73912F022F37F9E000D13A0 /* App.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = D73912EF22F37F9E000D13A0 /* App.framework */; };
+		D73912F222F3801D000D13A0 /* App.framework in Bundle Framework */ = {isa = PBXBuildFile; fileRef = D73912EF22F37F9E000D13A0 /* App.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
 		F03CC91740A974D36C2A6384 /* Pods_Runner.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 0BC6FF5FCD90624533CC60DB /* Pods_Runner.framework */; };
 /* End PBXBuildFile section */
 
@@ -46,6 +50,8 @@
 			dstPath = "";
 			dstSubfolderSpec = 10;
 			files = (
+				D73912F222F3801D000D13A0 /* App.framework in Bundle Framework */,
+				33D1A10522148B93006C7A3E /* FlutterMacOS.framework in Bundle Framework */,
 			);
 			name = "Bundle Framework";
 			runOnlyForDeploymentPostprocessing = 0;
@@ -67,12 +73,14 @@
 		33CEB47222A05771004F2AC0 /* Flutter-Debug.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; path = "Flutter-Debug.xcconfig"; sourceTree = "<group>"; };
 		33CEB47422A05771004F2AC0 /* Flutter-Release.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; path = "Flutter-Release.xcconfig"; sourceTree = "<group>"; };
 		33CEB47722A0578A004F2AC0 /* Flutter-Generated.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; name = "Flutter-Generated.xcconfig"; path = "ephemeral/Flutter-Generated.xcconfig"; sourceTree = "<group>"; };
+		33D1A10322148B71006C7A3E /* FlutterMacOS.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = FlutterMacOS.framework; path = Flutter/ephemeral/FlutterMacOS.framework; sourceTree = SOURCE_ROOT; };
 		33E51913231747F40026EE4D /* DebugProfile.entitlements */ = {isa = PBXFileReference; lastKnownFileType = text.plist.entitlements; path = DebugProfile.entitlements; sourceTree = "<group>"; };
 		33E51914231749380026EE4D /* Release.entitlements */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.entitlements; path = Release.entitlements; sourceTree = "<group>"; };
 		33E5194F232828860026EE4D /* AppInfo.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; path = AppInfo.xcconfig; sourceTree = "<group>"; };
 		5B4C0E87024EC2686CA05E23 /* Pods-Runner.profile.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-Runner.profile.xcconfig"; path = "Target Support Files/Pods-Runner/Pods-Runner.profile.xcconfig"; sourceTree = "<group>"; };
 		7AFA3C8E1D35360C0083082E /* Release.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; path = Release.xcconfig; sourceTree = "<group>"; };
 		9740EEB21CF90195004384FC /* Debug.xcconfig */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.xcconfig; path = Debug.xcconfig; sourceTree = "<group>"; };
+		D73912EF22F37F9E000D13A0 /* App.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = App.framework; path = Flutter/ephemeral/App.framework; sourceTree = SOURCE_ROOT; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -80,6 +88,8 @@
 			isa = PBXFrameworksBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				D73912F022F37F9E000D13A0 /* App.framework in Frameworks */,
+				33D1A10422148B71006C7A3E /* FlutterMacOS.framework in Frameworks */,
 				F03CC91740A974D36C2A6384 /* Pods_Runner.framework in Frameworks */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
@@ -135,6 +145,8 @@
 				33CEB47222A05771004F2AC0 /* Flutter-Debug.xcconfig */,
 				33CEB47422A05771004F2AC0 /* Flutter-Release.xcconfig */,
 				33CEB47722A0578A004F2AC0 /* Flutter-Generated.xcconfig */,
+				D73912EF22F37F9E000D13A0 /* App.framework */,
+				33D1A10322148B71006C7A3E /* FlutterMacOS.framework */,
 			);
 			path = Flutter;
 			sourceTree = "<group>";
@@ -269,7 +281,7 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/sh;
-			shellScript = "echo \"$PRODUCT_NAME.app\" > \"$PROJECT_DIR\"/Flutter/ephemeral/.app_filename && \"$FLUTTER_ROOT\"/packages/flutter_tools/bin/macos_assemble.sh embed\n";
+			shellScript = "echo \"$PRODUCT_NAME.app\" > \"$PROJECT_DIR\"/Flutter/ephemeral/.app_filename\n";
 		};
 		33CC111E2044C6BF0003C045 /* ShellScript */ = {
 			isa = PBXShellScriptBuildPhase;
@@ -318,13 +330,10 @@
 			buildActionMask = 2147483647;
 			files = (
 			);
-			inputPaths = (
-				"${PODS_ROOT}/Target Support Files/Pods-Runner/Pods-Runner-frameworks.sh",
-				"${BUILT_PRODUCTS_DIR}/path_provider_macos/path_provider_macos.framework",
+			inputFileListPaths = (
 			);
 			name = "[CP] Embed Pods Frameworks";
-			outputPaths = (
-				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/path_provider_macos.framework",
+			outputFileListPaths = (
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/sh;

example/pubspec.lock

@@ -7,77 +7,84 @@ packages:
       name: archive
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.3.1"
+    version: "2.0.13"
+  args:
+    dependency: transitive
+    description:
+      name: args
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.6.0"
   async:
     dependency: transitive
     description:
       name: async
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.8.2"
+    version: "2.4.2"
   boolean_selector:
     dependency: transitive
     description:
       name: boolean_selector
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.0"
+    version: "2.0.0"
   characters:
     dependency: transitive
     description:
       name: characters
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.2.0"
+    version: "1.0.0"
   charcode:
     dependency: transitive
     description:
       name: charcode
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.3.1"
+    version: "1.1.3"
   clock:
     dependency: transitive
     description:
       name: clock
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.0"
+    version: "1.0.1"
   collection:
     dependency: transitive
     description:
       name: collection
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.16.0"
+    version: "1.14.13"
+  convert:
+    dependency: transitive
+    description:
+      name: convert
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.1"
   crypto:
     dependency: transitive
     description:
       name: crypto
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.0.2"
+    version: "2.1.5"
   fake_async:
     dependency: transitive
     description:
       name: fake_async
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.3.0"
-  ffi:
-    dependency: transitive
-    description:
-      name: ffi
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.0.1"
+    version: "1.1.0"
   file:
     dependency: transitive
     description:
       name: file
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "6.1.2"
+    version: "5.2.1"
   flutter:
     dependency: "direct main"
     description: flutter
@@ -89,14 +96,7 @@ packages:
       name: flutter_colorpicker
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.3"
-  flutter_lints:
-    dependency: "direct dev"
-    description:
-      name: flutter_lints
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.0.1"
+    version: "0.3.4"
   flutter_test:
     dependency: "direct dev"
     description: flutter
@@ -108,140 +108,119 @@ packages:
       name: golden_toolkit
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.13.0"
+    version: "0.6.0"
   http:
     dependency: "direct main"
     description:
       name: http
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.13.4"
+    version: "0.12.2"
   http_parser:
     dependency: transitive
     description:
       name: http_parser
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "4.0.1"
-  lints:
+    version: "3.1.4"
+  intl:
     dependency: transitive
     description:
-      name: lints
+      name: intl
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.0"
+    version: "0.16.1"
   logging:
-    dependency: "direct main"
+    dependency: transitive
     description:
       name: logging
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.2"
+    version: "0.11.4"
   lottie:
     dependency: "direct main"
     description:
       path: ".."
       relative: true
     source: path
-    version: "1.4.2"
+    version: "0.6.0"
   matcher:
     dependency: transitive
     description:
       name: matcher
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.12.11"
-  material_color_utilities:
-    dependency: transitive
-    description:
-      name: material_color_utilities
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.1.4"
+    version: "0.12.8"
   meta:
     dependency: transitive
     description:
       name: meta
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.7.0"
+    version: "1.1.8"
   path:
-    dependency: "direct main"
+    dependency: transitive
     description:
       name: path
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.8.1"
+    version: "1.7.0"
   path_provider:
     dependency: "direct main"
     description:
       name: path_provider
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.11"
-  path_provider_android:
-    dependency: transitive
-    description:
-      name: path_provider_android
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.0.16"
-  path_provider_ios:
-    dependency: transitive
-    description:
-      name: path_provider_ios
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.0.10"
+    version: "1.6.14"
   path_provider_linux:
     dependency: transitive
     description:
       name: path_provider_linux
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.7"
+    version: "0.0.1+2"
   path_provider_macos:
     dependency: transitive
     description:
       name: path_provider_macos
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.6"
+    version: "0.0.4+3"
   path_provider_platform_interface:
     dependency: transitive
     description:
       name: path_provider_platform_interface
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.4"
-  path_provider_windows:
+    version: "1.0.3"
+  pedantic:
     dependency: transitive
     description:
-      name: path_provider_windows
+      name: pedantic
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.0"
+    version: "1.9.0"
   platform:
     dependency: transitive
     description:
       name: platform
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.1.0"
+    version: "2.2.1"
   plugin_platform_interface:
     dependency: transitive
     description:
       name: plugin_platform_interface
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.2"
+    version: "1.0.2"
   process:
     dependency: transitive
     description:
       name: process
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "4.2.4"
+    version: "3.0.13"
   sky_engine:
     dependency: transitive
     description: flutter
@@ -253,70 +232,63 @@ packages:
       name: source_span
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.8.2"
+    version: "1.7.0"
   stack_trace:
     dependency: transitive
     description:
       name: stack_trace
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.10.0"
+    version: "1.9.5"
   stream_channel:
     dependency: transitive
     description:
       name: stream_channel
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.0"
+    version: "2.0.0"
   string_scanner:
     dependency: transitive
     description:
       name: string_scanner
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.0"
+    version: "1.0.5"
   term_glyph:
     dependency: transitive
     description:
       name: term_glyph
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.2.0"
+    version: "1.1.0"
   test_api:
     dependency: transitive
     description:
       name: test_api
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.4.9"
+    version: "0.2.17"
   typed_data:
     dependency: transitive
     description:
       name: typed_data
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.3.1"
+    version: "1.2.0"
   vector_math:
     dependency: transitive
     description:
       name: vector_math
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.2"
-  win32:
-    dependency: transitive
-    description:
-      name: win32
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.7.0"
+    version: "2.0.8"
   xdg_directories:
     dependency: transitive
     description:
       name: xdg_directories
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.2.0+1"
+    version: "0.1.0"
 sdks:
-  dart: ">=2.17.0 <3.0.0"
-  flutter: ">=3.0.0"
+  dart: ">=2.9.0-14.0.dev <3.0.0"
+  flutter: ">=1.12.13+hotfix.5 <2.0.0"

example/pubspec.yaml

@@ -1,23 +1,20 @@
 name: lottie_example
 description: A sample app for the Lottie player
-publish_to: none
+version: 0.0.1
 
 environment:
-  sdk: ">=2.12.0-0 <3.0.0"
+  sdk: ">=2.7.0 <3.0.0"
 
 dependencies:
   flutter:
     sdk: flutter
-  flutter_colorpicker:
-  http:
-  logging:
   lottie:
     path: ../
-  path:
+  flutter_colorpicker:
   path_provider:
+  http:
 
 dev_dependencies:
-  flutter_lints:
   flutter_test:
     sdk: flutter
   golden_toolkit:
@@ -34,7 +31,6 @@ flutter:
     - assets/lottiefiles/
     - assets/Mobilo/
     - assets/Tests/
-    - assets/Tests/images/
     - assets/Logo/
     - assets/Images/
     - assets/Images/WeAccept/
@@ -63,4 +59,4 @@ flutter:
         - asset: assets/fonts/Roboto.ttf
     - family: Noto Emoji
       fonts:
-        - asset: assets/fonts/Noto-Emoji.ttf
+        - asset: assets/fonts/NotoEmoji-Regular.ttf

example/test/dynamic_properties_test.dart

@@ -1,24 +1,27 @@
 import 'dart:io';
 import 'dart:ui';
 import 'package:flutter/material.dart';
+import 'package:flutter/painting.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:lottie/lottie.dart';
 import 'utils.dart';
 
 void main() {
-  void testGolden(String description, ValueDelegate delegate,
-      {double? progress, String? filePath}) {
-    filePath ??= 'Tests/Shapes.json';
+  LottieComposition composition;
 
+  setUpAll(() async {
+    composition = await LottieComposition.fromBytes(
+        File('assets/Tests/Shapes.json').readAsBytesSync());
+  });
+
+  void testGolden(String description, ValueDelegate delegate,
+      {double progress}) async {
     var screenshotName = description
         .toLowerCase()
         .replaceAll(RegExp('[^a-z0-9 ]'), '')
         .replaceAll(' ', '_');
 
     testWidgets(description, (tester) async {
-      var composition = await LottieComposition.fromBytes(
-          File('example/assets/$filePath').readAsBytesSync());
-
       var animation =
           AnimationController(vsync: tester, duration: composition.duration);
       if (progress != null) {
@@ -42,11 +45,13 @@ void main() {
           Lottie(
             composition: composition,
             controller: animation,
-            delegates: const LottieDelegates(values: []),
+            delegates: LottieDelegates(values: []),
             addRepaintBoundary: false,
           ),
         );
         await tester.pump();
+        await expectLater(find.byType(Lottie),
+            matchesGoldenFile('goldens/dynamic_without_delegate.png'));
       }
     });
   }
@@ -89,19 +94,19 @@ void main() {
   testGolden(
     'Transform anchor point',
     ValueDelegate.transformAnchorPoint(['Shape Layer 1', 'Rectangle'],
-        value: const Offset(20, 20)),
+        value: Offset(20, 20)),
   );
 
   testGolden(
     'Transform position',
     ValueDelegate.transformPosition(['Shape Layer 1', 'Rectangle'],
-        value: const Offset(20, 20)),
+        value: Offset(20, 20)),
   );
 
   testGolden(
     'Transform position (relative)',
     ValueDelegate.transformPosition(['Shape Layer 1', 'Rectangle'],
-        relative: const Offset(20, 20)),
+        relative: Offset(20, 20)),
   );
 
   testGolden(
@@ -117,7 +122,7 @@ void main() {
   testGolden(
     'Transform scale',
     ValueDelegate.transformScale(['Shape Layer 1', 'Rectangle'],
-        value: const Offset(0.5, 0.5)),
+        value: Offset(0.5, 0.5)),
   );
 
   testGolden(
@@ -130,26 +135,26 @@ void main() {
   testGolden(
     'Rectangle position',
     ValueDelegate.position(['Shape Layer 1', 'Rectangle', 'Rectangle Path 1'],
-        relative: const Offset(20, 20)),
+        relative: Offset(20, 20)),
   );
 
   testGolden(
     'Rectangle size',
     ValueDelegate.rectangleSize(
         ['Shape Layer 1', 'Rectangle', 'Rectangle Path 1'],
-        relative: const Offset(30, 40)),
+        relative: Offset(30, 40)),
   );
 
   testGolden(
     'Ellipse position',
     ValueDelegate.position(['Shape Layer 1', 'Ellipse', 'Ellipse Path 1'],
-        relative: const Offset(20, 20)),
+        relative: Offset(20, 20)),
   );
 
   testGolden(
     'Ellipse size',
     ValueDelegate.ellipseSize(['Shape Layer 1', 'Ellipse', 'Ellipse Path 1'],
-        relative: const Offset(40, 60)),
+        relative: Offset(40, 60)),
   );
 
   testGolden(
@@ -167,7 +172,7 @@ void main() {
   testGolden(
     'Star position',
     ValueDelegate.position(['Shape Layer 1', 'Star', 'Polystar Path 1'],
-        relative: const Offset(20, 20)),
+        relative: Offset(20, 20)),
   );
 
   testGolden(
@@ -213,7 +218,7 @@ void main() {
   testGolden(
     'Polygon position',
     ValueDelegate.position(['Shape Layer 1', 'Star', 'Polystar Path 1'],
-        relative: const Offset(20, 20)),
+        relative: Offset(20, 20)),
   );
 
   testGolden(
@@ -234,7 +239,7 @@ void main() {
     'Repeater transform position',
     ValueDelegate.transformPosition(
         ['Shape Layer 1', 'Repeater Shape', 'Repeater 1'],
-        relative: const Offset(100, 100)),
+        relative: Offset(100, 100)),
   );
 
   testGolden(
@@ -262,7 +267,7 @@ void main() {
     'Repeater transform scale',
     ValueDelegate.transformScale(
         ['Shape Layer 1', 'Repeater Shape', 'Repeater 1'],
-        value: const Offset(2, 2)),
+        value: Offset(2, 2)),
   );
 
   testGolden('Time remapping', ValueDelegate.timeRemap(['Circle 1'], value: 1),
@@ -271,7 +276,7 @@ void main() {
   testGolden(
     'Color Filter',
     ValueDelegate.colorFilter(['**'],
-        value: const ColorFilter.mode(Colors.green, BlendMode.srcATop)),
+        value: ColorFilter.mode(Colors.green, BlendMode.srcATop)),
   );
 
   testGolden(
@@ -279,47 +284,18 @@ void main() {
     ValueDelegate.colorFilter(['**'], value: null),
   );
 
-  testGolden(
-    'Matte property',
-    ValueDelegate.rectangleSize(
-        ['Shape Layer 1', 'Rectangle 1', 'Rectangle Path 1'],
-        value: const Offset(50, 50)),
-    filePath: 'Tests/TrackMattes.json',
-  );
-
-  testGolden(
-    'Blur',
-    ValueDelegate.blurRadius(
-      ['**'],
-      value: 22,
-    ),
-  );
-
-  testGolden(
-    'Drop shadow',
-    ValueDelegate.dropShadow(
-      ['Shape Layer 1', '**'],
-      value: const DropShadow(
-        color: Colors.green,
-        direction: 150,
-        distance: 20,
-        radius: 10,
-      ),
-    ),
-  );
-
   for (var progress in [0.0, 0.5, 1.0]) {
     testGolden(
         'Opacity interpolation ($progress)',
         ValueDelegate.transformOpacity(['Shape Layer 1', 'Rectangle'],
-            callback: (frameInfo) => lerpDouble(10, 100,
-                    Curves.linear.transform(frameInfo.overallProgress))!
+            callback: (frameInfo) => lerpDouble(
+                    10, 100, Curves.linear.transform(frameInfo.overallProgress))
                 .round()),
         progress: progress);
   }
 
   testWidgets('warningShimmer', (tester) async {
-    var size = const Size(500, 400);
+    var size = Size(500, 400);
     tester.binding.window.physicalSizeTestValue = size;
     tester.binding.window.devicePixelRatioTestValue = 1.0;
 

example/test/dynamic_text_test.dart

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

example/test/fireworks_test.dart

@@ -8,12 +8,12 @@ import 'utils.dart';
 
 void main() {
   testWidgets('Animations with stroke', (tester) async {
-    var size = const Size(500, 400);
+    var size = Size(500, 400);
     tester.binding.window.physicalSizeTestValue = size;
     tester.binding.window.devicePixelRatioTestValue = 1.0;
 
     var composition = await LottieComposition.fromBytes(
-        File('example/assets/17297-fireworks.json').readAsBytesSync());
+        File('assets/17297-fireworks.json').readAsBytesSync());
 
     await tester.pumpWidget(FilmStrip(composition, size: size));
 

example/test/flutter_test_config.dart

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

example/test/golden_test.dart

@@ -7,17 +7,16 @@ import 'package:path/path.dart' as p;
 import 'utils.dart';
 
 void main() {
-  var root = 'example/assets';
+  var root = 'assets';
   for (var asset in Directory(root)
       .listSync(recursive: true)
       .whereType<File>()
       .where((f) => const ['.json', '.zip'].contains(p.extension(f.path)))) {
     testWidgets('Goldens ${asset.path}', (tester) async {
-      var size = const Size(500, 400);
+      var size = Size(500, 400);
       tester.binding.window.physicalSizeTestValue = size;
       tester.binding.window.devicePixelRatioTestValue = 1.0;
-      var composition =
-          (await tester.runAsync(() => FileLottie(asset).load()))!;
+      var composition = await tester.runAsync(() => FileLottie(asset).load());
 
       await tester.pumpWidget(FilmStrip(composition, size: size));