[rive_native] Missing State Machine State End Callback

[BlockRen]

Description:
It seems that there is no way to get a callback for the end of a state in the state machine in rive_native. In the rive_common version, I can obtain the callback using the following code:

// get animation controller
_riveController = StateMachineController.fromArtboard(
  artBoard,
  "animation_default",
  onStateChange: _onStateChange,
);

// listen the animation state
void _onStateChange(String stateMachineName, String stateName) {
  if (stateName == "ExitState" &&
    stateMachineController?.layerControllers.length == 1) {
    animationEnd?.call(stateName);
    return;
  }
  if (lastAnimationState != stateName) {
    if (lastAnimationState.isNotEmpty) {
      animationEnd?.call(lastAnimationState);
    }
    lastAnimationState = stateName;
  }
  animationBegin?.call(stateName);
}

However, this functionality is missing in rive_native. Is there any alternative way to achieve this in rive_native?

[HayesGordon]

Yes! We recommend using Events, a more robust solution than animation state changes.

Note that we will soon launch Data Binding support for rive_native, which will unlock many more possibilities and could also replace what you're currently doing through animation state changes.

I'll be closing this issue for now, but if anyone feels that this is an important functionality that is missing, please reopen it.

[BlockRen]

Thank you for your reply and assistance! I'm really looking forward to the upcoming "Data Binding" feature in rive_native. For now, I'll consider using Events as a solution to address the current issue. Once again, thanks for your support!

[SunPointed]

Hi HayesGordon, after upgrade (rive: 0.14.0-dev.6), the _onRiveEvent never called. Is there a example for change old version "onStateChange" to new version "OnRiveEvent"?

[HayesGordon]

@SunPointed to drive state conditions you can use events: https://rive.app/docs/runtimes/rive-events

Or even better, databinding:

• https://rive.app/docs/editor/data-binding/overview
• https://rive.app/docs/runtimes/data-binding