notifyStatusListeners method Null safety
- AnimationStatus status
protected">@protected
Calls all the status listeners.
If listeners are added or removed during this function, the modifications will not change which listeners are called during this iteration.
Implementation
@protected
@pragma('vm:notify-debugger-on-exception')
void notifyStatusListeners(AnimationStatus status) {
final List<AnimationStatusListener> localListeners = _statusListeners.toList(growable: false);
for (final AnimationStatusListener listener in localListeners) {
try {
if (_statusListeners.contains(listener)) {
listener(status);
}
} catch (exception, stack) {
InformationCollector? collector;
assert(() {
collector = () => <DiagnosticsNode>[
DiagnosticsProperty<AnimationLocalStatusListenersMixin>(
'The $runtimeType notifying status listeners was',
this,
style: DiagnosticsTreeStyle.errorProperty,
),
];
return true;
}());
FlutterError.reportError(FlutterErrorDetails(
exception: exception,
stack: stack,
library: 'animation library',
context: ErrorDescription('while notifying status listeners for $runtimeType'),
informationCollector: collector,
));
}
}
}