Matrix translation bug (#89)

- Fix a couple of bug with JSON decoding with Dart Dev Compiler
- Support loading animation from network in the web version

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

@@ -0,0 +1,35 @@
+name: Lottie Flutter
+on:
+  pull_request:
+  push:
+    branches:
+      - master
+
+jobs:
+  analyze_and_test:
+    name: Flutter analyze
+    strategy:
+      matrix:
+        flutter: ['stable', 'dev']
+    runs-on: macos-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: subosito/flutter-action@v1
+        with:
+          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 -- . ':(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

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

@@ -0,0 +1,32 @@
+name: Publish package to pub.dev
+on:
+  push:
+    tags:
+      - v*
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@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: echo ::set-env name=RELEASE_VERSION::${GITHUB_REF}
+      - run: flutter pub run tool/publish/check_version.dart ${{ env.RELEASE_VERSION }}
+      - name: Setup credentials
+        run: |
+          mkdir -p $FLUTTER_HOME/.pub-cache
+          cat <<EOF > $FLUTTER_HOME/.pub-cache/credentials.json
+          {
+            "accessToken":"${{ secrets.OAUTH_ACCESS_TOKEN }}",
+            "refreshToken":"${{ secrets.OAUTH_REFRESH_TOKEN }}",
+            "tokenEndpoint":"https://accounts.google.com/o/oauth2/token",
+            "scopes": [ "openid", "https://www.googleapis.com/auth/userinfo.email" ],
+            "expiration": 1580681402856
+          }
+          EOF
+      - name: Publish package
+        run: flutter pub publish --force

.gitignore

@@ -0,0 +1,11 @@
+.*
+_*
+
+!.gitignore
+!.github
+
+**/failures/*.png
+
+*.iml
+**/doc/api/
+build/

.metadata

@@ -0,0 +1,10 @@
+# This file tracks properties of this Flutter project.
+# Used by Flutter tool to assess capabilities and perform upgrades etc.
+#
+# This file should be version controlled and should not be manually edited.
+
+version:
+  revision: 27321ebbad34b0a3fafe99fac037102196d655ff
+  channel: stable
+
+project_type: package

CHANGELOG.md

@@ -0,0 +1,82 @@
+## [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]
+- Improve readme
+- (internal) Add golden tests
+
+## [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]
+- Support images in animation
+- Basic support for text in animation (work in progress)
+
+## [0.1.3]
+- Support Polystar shape
+- Reorganize examples.
+
+## [0.1.2]
+- Implement `Lottie.network`, `Lottie.file` and `Lottie.memory`
+
+## [0.1.1]
+- Fix analysis lints
+
+## [0.1.0]
+- Initial conversion of [lottie-android](https://github.com/airbnb/lottie-android) to Dart/Flutter

LICENSE

@@ -0,0 +1,21 @@
+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

@@ -0,0 +1,258 @@
+# Lottie for Flutter
+
+[![](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](https://www.adobe.com/products/aftereffects.html) 
+animations exported as json with [Bodymovin](https://github.com/airbnb/lottie-web) and renders them natively on mobile!
+
+This repository is a unofficial conversion of the [Lottie-android](https://github.com/airbnb/lottie-android) library in pure Dart. 
+
+It works on Android, iOS and macOS and web.
+
+## Usage
+
+### Simple animation
+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 '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/lottiefiles/angel.zip'),
+          ],
+        ),
+      ),
+    );
+  }
+}
+```
+
+### Specify a custom `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());
+
+class MyApp extends StatefulWidget {
+  @override
+  _MyAppState createState() => _MyAppState();
+}
+
+class _MyAppState extends State<MyApp> with TickerProviderStateMixin {
+  AnimationController _controller;
+
+  @override
+  void initState() {
+    super.initState();
+
+    _controller = AnimationController(vsync: this);
+  }
+
+  @override
+  void dispose() {
+    _controller.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      home: Scaffold(
+        body: ListView(
+          children: [
+            Lottie.asset(
+              'assets/LottieLogo1.json',
+              controller: _controller,
+              onLoaded: (composition) {
+                // Configure the AnimationController with the duration of the
+                // Lottie file and start the animation.
+                _controller
+                  ..duration = composition.duration
+                  ..forward();
+              },
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}
+```
+
+[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.
+```dart
+Lottie.asset(
+  'assets/LottieLogo1.json',
+  width: 200,
+  height: 200,
+  fit: BoxFit.fill,
+)
+```
+
+`width` and `height` are optionals and fallback on the size imposed by the parent or on the intrinsic size of the lottie 
+animation.
+
+### Custom loading
+The `Lottie` widget has several convenient constructors (`Lottie.asset`, `Lottie.network`, `Lottie.memory`) to load, parse and
+cache automatically the json file.
+
+Sometime you may prefer to have full control over the loading of the file. Use `LottieComposition.fromByteData` to 
+parse the file from a list of bytes.
+
+This example shows how to load and parse a Lottie composition from a json file.  
+
+```dart
+class MyWidget extends StatefulWidget {
+  @override
+  _MyWidgetState createState() => _MyWidgetState();
+}
+
+class _MyWidgetState extends State<MyWidget> {
+  Future<LottieComposition> _composition;
+
+  @override
+  void initState() {
+    super.initState();
+
+    _composition = _loadComposition();
+  }
+
+  Future<LottieComposition> _loadComposition() async {
+    var assetData = await rootBundle.load('assets/LottieLogo1.json');
+    return await LottieComposition.fromByteData(assetData);
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return FutureBuilder<LottieComposition>(
+      future: _composition,
+      builder: (context, snapshot) {
+        var composition = snapshot.data;
+        if (composition != null) {
+          return Lottie(composition: composition);
+        } else {
+          return Center(child: CircularProgressIndicator());
+        }
+      },
+    );
+  }
+}
+```
+
+### Custom drawing
+This example goes low level and shows you how to draw a `LottieComposition` on a custom Canvas at a specific frame in 
+a specific position and size.
+
+````dart
+class CustomDrawer extends StatelessWidget {
+  final LottieComposition composition;
+
+  const CustomDrawer(this.composition, {Key key}) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return CustomPaint(
+      painter: _Painter(composition),
+      size: Size(400, 400),
+    );
+  }
+}
+
+class _Painter extends CustomPainter {
+  final LottieDrawable drawable;
+
+  _Painter(LottieComposition composition)
+      : drawable = LottieDrawable(composition);
+
+  @override
+  void paint(Canvas canvas, Size size) {
+    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
+        ..setProgress(i / frameCount)
+        ..draw(canvas, destRect);
+    }
+  }
+
+  @override
+  bool shouldRepaint(CustomPainter oldDelegate) {
+    return true;
+  }
+}
+````
+
+### 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.
+
+````dart
+class _Animation extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    return Lottie.asset(
+      'assets/Tests/Shapes.json',
+      delegates: LottieDelegates(
+        text: (initialText) => '**$initialText**',
+        values: [
+          ValueDelegate.color(
+            const ['Shape Layer 1', 'Rectangle', 'Fill 1'],
+            value: Colors.red,
+          ),
+          ValueDelegate.opacity(
+            const ['Shape Layer 1', 'Rectangle'],
+            callback: (frameInfo) => (frameInfo.overallProgress * 100).round(),
+          ),
+          ValueDelegate.position(
+            const ['Shape Layer 1', 'Rectangle', '**'],
+            relative: Offset(100, 200),
+          ),
+        ],
+      ),
+    );
+  }
+}
+````
+
+## Limitations
+Only the [supported features of Lottie Android](https://airbnb.io/lottie/#/supported-features)
+are supported in this port.
+
+## Flutter Web
+Run the app with `flutter run -d Chrome --dart-define=FLUTTER_WEB_USE_SKIA=true --release`
+
+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

@@ -0,0 +1,90 @@
+# Lottie for Flutter
+
+[![](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](https://www.adobe.com/products/aftereffects.html) 
+animations exported as json with [Bodymovin](https://github.com/airbnb/lottie-web) and renders them natively on mobile!
+
+This repository is a unofficial conversion of the [Lottie-android](https://github.com/airbnb/lottie-android) library in pure Dart. 
+
+It works on Android, iOS and macOS and web.
+
+## Usage
+
+### Simple animation
+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';
+```
+
+### Specify a custom `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.
+```dart
+Lottie.asset(
+  'assets/LottieLogo1.json',
+  width: 200,
+  height: 200,
+  fit: BoxFit.fill,
+)
+```
+
+`width` and `height` are optionals and fallback on the size imposed by the parent or on the intrinsic size of the lottie 
+animation.
+
+### Custom loading
+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';
+```
+
+### Custom drawing
+This example goes low level and shows you how to draw a `LottieComposition` on a custom Canvas at a specific frame in 
+a specific position and size.
+
+````dart
+import 'example/lib/examples/custom_draw.dart#example';
+````
+
+### 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.
+
+````dart
+import 'example/lib/examples/simple_dynamic_properties.dart#example';
+````
+
+## Limitations
+Only the [supported features of Lottie Android](https://airbnb.io/lottie/#/supported-features)
+are supported in this port.
+
+## Flutter Web
+Run the app with `flutter run -d Chrome --dart-define=FLUTTER_WEB_USE_SKIA=true --release`
+
+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

@@ -0,0 +1,39 @@
+include: package:pedantic/analysis_options.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_setters_without_getters: 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
+    non_constant_identifier_names: 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
+    sort_pub_dependencies: true
+    test_types_in_equals: true
+    unnecessary_brace_in_string_interps: true
+    unnecessary_getters_setters: true
+    unnecessary_parenthesis: true
+    unnecessary_statements: true
+    use_function_type_syntax_for_parameters: true
+    void_checks: true

assets/FontManifest.json

@@ -1 +0,0 @@
-[{"family":"MaterialIcons","fonts":[{"asset":"fonts/MaterialIcons-Regular.ttf"}]}]

example/.gitignore

@@ -0,0 +1,37 @@
+# Miscellaneous
+*.class
+*.log
+*.pyc
+*.swp
+.DS_Store
+.atom/
+.buildlog/
+.history
+.svn/
+
+# IntelliJ related
+*.iml
+*.ipr
+*.iws
+.idea/
+
+# The .vscode folder contains launch configuration and tasks you configure in
+# VS Code which you may wish to be included in version control, so this line
+# is commented out by default.
+#.vscode/
+
+# Flutter/Dart/Pub related
+**/doc/api/
+.dart_tool/
+.flutter-plugins
+.flutter-plugins-dependencies
+.packages
+.pub-cache/
+.pub/
+/build/
+
+# Web related
+lib/generated_plugin_registrant.dart
+
+# Exceptions to above rules.
+!/packages/flutter_tools/test/data/dart_dependencies_test/**/.packages

example/README.md

@@ -0,0 +1,31 @@
+# Lottie Flutter examples
+
+### Simple usage
+
+```dart
+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/sample_app/assets/Mobilo/A.json'),
+          ],
+        ),
+      ),
+    );
+  }
+}
+```
+

example/README.template.md

@@ -0,0 +1,8 @@
+# Lottie Flutter examples
+
+### Simple usage
+
+```dart
+import 'lib/examples/examples.dart';
+```
+

example/android/.gitignore

@@ -0,0 +1,7 @@
+gradle-wrapper.jar
+/.gradle
+/captures/
+/gradlew
+/gradlew.bat
+/local.properties
+GeneratedPluginRegistrant.java

example/android/app/build.gradle

@@ -0,0 +1,66 @@
+def localProperties = new Properties()
+def localPropertiesFile = rootProject.file('local.properties')
+if (localPropertiesFile.exists()) {
+    localPropertiesFile.withReader('UTF-8') { reader ->
+        localProperties.load(reader)
+    }
+}
+
+def flutterRoot = localProperties.getProperty('flutter.sdk')
+if (flutterRoot == null) {
+    throw new Exception("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
+}
+
+def flutterVersionCode = localProperties.getProperty('flutter.versionCode')
+if (flutterVersionCode == null) {
+    flutterVersionCode = '1'
+}
+
+def flutterVersionName = localProperties.getProperty('flutter.versionName')
+if (flutterVersionName == null) {
+    flutterVersionName = '1.0'
+}
+
+apply plugin: 'com.android.application'
+apply plugin: 'kotlin-android'
+apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
+
+android {
+    compileSdkVersion 28
+
+    sourceSets {
+        main.java.srcDirs += 'src/main/kotlin'
+    }
+
+    lintOptions {
+        disable 'InvalidPackage'
+    }
+
+    defaultConfig {
+        applicationId "com.github.xvrh.lottie.sample"
+        minSdkVersion 16
+        targetSdkVersion 28
+        versionCode flutterVersionCode.toInteger()
+        versionName flutterVersionName
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    buildTypes {
+        release {
+            // TODO: Add your own signing config for the release build.
+            // Signing with the debug keys for now, so `flutter run --release` works.
+            signingConfig signingConfigs.debug
+        }
+    }
+}
+
+flutter {
+    source '../..'
+}
+
+dependencies {
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$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

@@ -0,0 +1,7 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.github.xvrh.lottie.sample">
+    <!-- Flutter needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>

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

@@ -0,0 +1,30 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    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:icon="@mipmap/ic_launcher">
+        <activity
+            android:name=".MainActivity"
+            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">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+        </activity>
+        <!-- Don't delete the meta-data below.
+             This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
+        <meta-data
+            android:name="flutterEmbedding"
+            android:value="2" />
+    </application>
+</manifest>

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/launch_background.xml

@@ -0,0 +1,12 @@
+<?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:color/white" />
+
+    <!-- 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/styles.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <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>
+</resources>

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

@@ -0,0 +1,7 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.github.xvrh.lottie.sample">
+    <!-- Flutter needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>

example/android/build.gradle

@@ -0,0 +1,31 @@
+buildscript {
+    ext.kotlin_version = '1.3.50'
+    repositories {
+        google()
+        jcenter()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:3.5.0'
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+    }
+}
+
+allprojects {
+    repositories {
+        google()
+        jcenter()
+    }
+}
+
+rootProject.buildDir = '../build'
+subprojects {
+    project.buildDir = "${rootProject.buildDir}/${project.name}"
+}
+subprojects {
+    project.evaluationDependsOn(':app')
+}
+
+task clean(type: Delete) {
+    delete rootProject.buildDir
+}

example/android/gradle.properties

@@ -0,0 +1,4 @@
+org.gradle.jvmargs=-Xmx1536M
+android.enableR8=true
+android.useAndroidX=true
+android.enableJetifier=true

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

@@ -0,0 +1,6 @@
+#Fri Jun 23 08:50:38 CEST 2017
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.6.2-all.zip

example/android/settings.gradle

@@ -0,0 +1,15 @@
+include ':app'
+
+def flutterProjectRoot = rootProject.projectDir.parentFile.toPath()
+
+def plugins = new Properties()
+def pluginsFile = new File(flutterProjectRoot.toFile(), '.flutter-plugins')
+if (pluginsFile.exists()) {
+    pluginsFile.withReader('UTF-8') { reader -> plugins.load(reader) }
+}
+
+plugins.each { name, path ->
+    def pluginDirectory = flutterProjectRoot.resolve(path).resolve('android').toFile()
+    include ":$name"
+    project(":$name").projectDir = pluginDirectory
+}