| Index: sky/framework/animation/generator.dart
|
| diff --git a/sky/framework/animation/generator.dart b/sky/framework/animation/generator.dart
|
| index 0b5055050a98bcf8d1ddf73bfd5381dafe0cb2e7..9b83d9fb4f6fa27b69d03537e31a27e7c39d5e58 100644
|
| --- a/sky/framework/animation/generator.dart
|
| +++ b/sky/framework/animation/generator.dart
|
| @@ -66,6 +66,7 @@ class AnimationGenerator extends FrameGenerator {
|
| this.curve: linear,
|
| Function onDone
|
| }):super(onDone: onDone) {
|
| + assert(duration > 0);
|
| double startTime = 0.0;
|
| _stream = super.onTick.map((timeStamp) {
|
| if (startTime == 0.0)
|
|
|