Add errorBuilder

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

@@ -10,7 +10,7 @@ jobs:
     name: Flutter analyze
     strategy:
       matrix:
-        flutter: ['stable']
+        flutter: ['stable', 'dev']
     runs-on: macos-latest
     steps:
       - uses: actions/checkout@v2

CHANGELOG.md

@@ -1,6 +1,3 @@
-## [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).  

example/pubspec.lock

@@ -21,42 +21,42 @@ packages:
       name: async
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.5.0-nullsafety.1"
+    version: "2.4.2"
   boolean_selector:
     dependency: transitive
     description:
       name: boolean_selector
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.0-nullsafety.1"
+    version: "2.0.0"
   characters:
     dependency: transitive
     description:
       name: characters
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.0-nullsafety.3"
+    version: "1.0.0"
   charcode:
     dependency: transitive
     description:
       name: charcode
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.2.0-nullsafety.1"
+    version: "1.1.3"
   clock:
     dependency: transitive
     description:
       name: clock
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.0-nullsafety.1"
+    version: "1.0.1"
   collection:
     dependency: transitive
     description:
       name: collection
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.15.0-nullsafety.3"
+    version: "1.14.13"
   convert:
     dependency: transitive
     description:
@@ -77,14 +77,7 @@ packages:
       name: fake_async
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.2.0-nullsafety.1"
+    version: "1.1.0"
-  ffi:
-    dependency: transitive
-    description:
-      name: ffi
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.1.3"
   file:
     dependency: transitive
     description:
@@ -150,35 +143,35 @@ packages:
       path: ".."
       relative: true
     source: path
-    version: "0.7.0"
+    version: "0.6.0"
   matcher:
     dependency: transitive
     description:
       name: matcher
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.12.10-nullsafety.1"
+    version: "0.12.8"
   meta:
     dependency: transitive
     description:
       name: meta
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.3.0-nullsafety.3"
+    version: "1.1.8"
   path:
     dependency: transitive
     description:
       name: path
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.8.0-nullsafety.1"
+    version: "1.7.0"
   path_provider:
     dependency: "direct main"
     description:
       name: path_provider
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.6.21"
+    version: "1.6.14"
   path_provider_linux:
     dependency: transitive
     description:
@@ -192,7 +185,7 @@ packages:
       name: path_provider_macos
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.0.4+4"
+    version: "0.0.4+3"
   path_provider_platform_interface:
     dependency: transitive
     description:
@@ -200,20 +193,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.3"
-  path_provider_windows:
-    dependency: transitive
-    description:
-      name: path_provider_windows
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.0.4+1"
   pedantic:
     dependency: transitive
     description:
       name: pedantic
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.9.2"
+    version: "1.9.0"
   platform:
     dependency: transitive
     description:
@@ -227,7 +213,7 @@ packages:
       name: plugin_platform_interface
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.3"
+    version: "1.0.2"
   process:
     dependency: transitive
     description:
@@ -246,70 +232,63 @@ packages:
       name: source_span
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.8.0-nullsafety.2"
+    version: "1.7.0"
   stack_trace:
     dependency: transitive
     description:
       name: stack_trace
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.10.0-nullsafety.1"
+    version: "1.9.5"
   stream_channel:
     dependency: transitive
     description:
       name: stream_channel
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.0-nullsafety.1"
+    version: "2.0.0"
   string_scanner:
     dependency: transitive
     description:
       name: string_scanner
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.0-nullsafety.1"
+    version: "1.0.5"
   term_glyph:
     dependency: transitive
     description:
       name: term_glyph
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.2.0-nullsafety.1"
+    version: "1.1.0"
   test_api:
     dependency: transitive
     description:
       name: test_api
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.2.19-nullsafety.2"
+    version: "0.2.17"
   typed_data:
     dependency: transitive
     description:
       name: typed_data
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.3.0-nullsafety.3"
+    version: "1.2.0"
   vector_math:
     dependency: transitive
     description:
       name: vector_math
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.0-nullsafety.3"
+    version: "2.0.8"
-  win32:
-    dependency: transitive
-    description:
-      name: win32
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.7.3"
   xdg_directories:
     dependency: transitive
     description:
       name: xdg_directories
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.1.2"
+    version: "0.1.0"
 sdks:
-  dart: ">=2.10.0-110 <2.11.0"
+  dart: ">=2.9.0-14.0.dev <3.0.0"
   flutter: ">=1.12.13+hotfix.5 <2.0.0"

example/pubspec.yaml

@@ -8,11 +8,11 @@ environment:
 dependencies:
   flutter:
     sdk: flutter
-  flutter_colorpicker:
-  http:
   lottie:
     path: ../
+  flutter_colorpicker:
   path_provider:
+  http:
 
 dev_dependencies:
   flutter_test:

lib/src/lottie.dart

@@ -50,6 +50,7 @@ class Lottie extends StatefulWidget {
     Key key,
     AssetBundle bundle,
     LottieFrameBuilder frameBuilder,
+    LottieErrorWidgetBuilder errorBuilder,
     double width,
     double height,
     BoxFit fit,
@@ -71,6 +72,7 @@ class Lottie extends StatefulWidget {
         key: key,
         bundle: bundle,
         frameBuilder: frameBuilder,
+        errorBuilder: errorBuilder,
         width: width,
         height: height,
         fit: fit,
@@ -93,6 +95,7 @@ class Lottie extends StatefulWidget {
     void Function(LottieComposition) onLoaded,
     Key key,
     LottieFrameBuilder frameBuilder,
+    LottieErrorWidgetBuilder errorBuilder,
     double width,
     double height,
     BoxFit fit,
@@ -112,6 +115,7 @@ class Lottie extends StatefulWidget {
         onLoaded: onLoaded,
         key: key,
         frameBuilder: frameBuilder,
+        errorBuilder: errorBuilder,
         width: width,
         height: height,
         fit: fit,
@@ -133,6 +137,7 @@ class Lottie extends StatefulWidget {
     void Function(LottieComposition) onLoaded,
     Key key,
     LottieFrameBuilder frameBuilder,
+    LottieErrorWidgetBuilder errorBuilder,
     double width,
     double height,
     BoxFit fit,
@@ -152,6 +157,7 @@ class Lottie extends StatefulWidget {
         onLoaded: onLoaded,
         key: key,
         frameBuilder: frameBuilder,
+        errorBuilder: errorBuilder,
         width: width,
         height: height,
         fit: fit,
@@ -173,6 +179,7 @@ class Lottie extends StatefulWidget {
     void Function(LottieComposition) onLoaded,
     Key key,
     LottieFrameBuilder frameBuilder,
+    LottieErrorWidgetBuilder errorBuilder,
     double width,
     double height,
     BoxFit fit,
@@ -192,6 +199,7 @@ class Lottie extends StatefulWidget {
         onLoaded: onLoaded,
         key: key,
         frameBuilder: frameBuilder,
+        errorBuilder: errorBuilder,
         width: width,
         height: height,
         fit: fit,

lib/src/lottie_builder.dart

@@ -44,6 +44,7 @@ class LottieBuilder extends StatefulWidget {
     this.options,
     this.onLoaded,
     this.frameBuilder,
+    this.errorBuilder,
     this.width,
     this.height,
     this.fit,
@@ -67,6 +68,7 @@ class LottieBuilder extends StatefulWidget {
     this.onLoaded,
     Key key,
     this.frameBuilder,
+    this.errorBuilder,
     this.width,
     this.height,
     this.fit,
@@ -99,6 +101,7 @@ class LottieBuilder extends StatefulWidget {
     this.onLoaded,
     Key key,
     this.frameBuilder,
+    this.errorBuilder,
     this.width,
     this.height,
     this.fit,
@@ -122,6 +125,7 @@ class LottieBuilder extends StatefulWidget {
     Key key,
     AssetBundle bundle,
     this.frameBuilder,
+    this.errorBuilder,
     this.width,
     this.height,
     this.fit,
@@ -148,6 +152,7 @@ class LottieBuilder extends StatefulWidget {
     this.onLoaded,
     Key key,
     this.frameBuilder,
+    this.errorBuilder,
     this.width,
     this.height,
     this.fit,
@@ -279,6 +284,12 @@ class LottieBuilder extends StatefulWidget {
   ///
   final LottieFrameBuilder frameBuilder;
 
+  /// A builder function that is called if an error occurs during animation loading.
+  ///
+  /// If this builder is not provided, it will use the `ErrorWidget` in debug mode
+  /// and an empty box in release mode.
+  final LottieErrorWidgetBuilder errorBuilder;
+
   /// If non-null, require the lottie animation to have this width.
   ///
   /// If null, the lottie animation will pick a size that best preserves its intrinsic
@@ -351,6 +362,7 @@ class LottieBuilder extends StatefulWidget {
     super.debugFillProperties(properties);
     properties.add(DiagnosticsProperty<LottieProvider>('lottie', lottie));
     properties.add(DiagnosticsProperty<Function>('frameBuilder', frameBuilder));
+    properties.add(DiagnosticsProperty<Function>('errorBuilder', errorBuilder));
     properties.add(DoubleProperty('width', width, defaultValue: null));
     properties.add(DoubleProperty('height', height, defaultValue: null));
     properties.add(EnumProperty<BoxFit>('fit', fit, defaultValue: null));
@@ -396,7 +408,9 @@ class _LottieBuilderState extends State<LottieBuilder> {
       future: _loadingFuture,
       builder: (context, snapshot) {
         if (snapshot.hasError) {
-          if (kDebugMode) {
+          if (widget.errorBuilder != null) {
+            return widget.errorBuilder(context, snapshot.error);
+          } else if (kDebugMode) {
             return ErrorWidget(snapshot.error);
           }
         }
@@ -435,3 +449,10 @@ class _LottieBuilderState extends State<LottieBuilder> {
         'loadingFuture', _loadingFuture));
   }
 }
+
+/// Signature used by [Lottie.errorBuilder] to create a replacement widget to
+/// render instead of the Lottie animation.
+typedef LottieErrorWidgetBuilder = Widget Function(
+  BuildContext context,
+  Object error,
+);

pubspec.lock

@@ -7,14 +7,14 @@ packages:
       name: _fe_analyzer_shared
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "11.0.0"
+    version: "6.0.0"
   analyzer:
     dependency: "direct dev"
     description:
       name: analyzer
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.40.4"
+    version: "0.39.14"
   archive:
     dependency: "direct main"
     description:
@@ -43,27 +43,6 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.0-nullsafety.1"
-  build:
-    dependency: transitive
-    description:
-      name: build
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.5.0"
-  built_collection:
-    dependency: transitive
-    description:
-      name: built_collection
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "4.3.2"
-  built_value:
-    dependency: transitive
-    description:
-      name: built_value
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "7.1.0"
   characters:
     dependency: "direct main"
     description:
@@ -84,7 +63,7 @@ packages:
       name: cli_util
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.2.0"
+    version: "0.1.4"
   clock:
     dependency: transitive
     description:
@@ -92,13 +71,6 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.0-nullsafety.1"
-  code_builder:
-    dependency: transitive
-    description:
-      name: code_builder
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "3.5.0"
   collection:
     dependency: "direct main"
     description:
@@ -120,13 +92,20 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.5"
+  csslib:
+    dependency: transitive
+    description:
+      name: csslib
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.16.2"
   dart_style:
     dependency: "direct dev"
     description:
       name: dart_style
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.3.8"
+    version: "1.3.6"
   fake_async:
     dependency: transitive
     description:
@@ -134,13 +113,6 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.2.0-nullsafety.1"
-  fixnum:
-    dependency: transitive
-    description:
-      name: fixnum
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.10.11"
   flutter:
     dependency: "direct main"
     description: flutter
@@ -158,6 +130,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.2.0"
+  html:
+    dependency: transitive
+    description:
+      name: html
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.14.0+3"
   js:
     dependency: transitive
     description:
@@ -192,7 +171,7 @@ packages:
       name: mockito
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "4.1.3"
+    version: "4.1.1"
   node_interop:
     dependency: transitive
     description:
@@ -227,7 +206,7 @@ packages:
       name: pedantic
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.9.2"
+    version: "1.9.0"
   pub_semver:
     dependency: transitive
     description:
@@ -235,25 +214,11 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.4.4"
-  quiver:
-    dependency: transitive
-    description:
-      name: quiver
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.1.3"
   sky_engine:
     dependency: transitive
     description: flutter
     source: sdk
     version: "0.0.99"
-  source_gen:
-    dependency: transitive
-    description:
-      name: source_gen
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.9.7+1"
   source_span:
     dependency: transitive
     description:

pubspec.yaml

@@ -1,27 +1,27 @@
 name: lottie
 description: Render After Effects animations natively on Flutter. This package is a pure Dart implementation of a Lottie player.
-version: 0.7.0
+version: 0.6.0
 homepage: https://github.com/xvrh/lottie-flutter
 
 environment:
   sdk: ">=2.7.0 <3.0.0"
 
 dependencies:
+  flutter:
+    sdk: flutter
   archive: ^2.0.0
   characters: '>=0.5.0 <2.0.0'
   charcode: ^1.0.0
   collection: ^1.14.0
-  flutter:
-    sdk: flutter
   logging: ^0.11.0
   meta: ^1.1.8
   path: ^1.6.0
   vector_math: ^2.0.0
 
 dev_dependencies:
-  analyzer:
-  dart_style:
   flutter_test:
     sdk: flutter
-  mockito:
+  analyzer: 0.39.14
+  dart_style: 1.3.6
+  mockito: ^4.0.0
   yaml: