spine-runtimes/spine-flutter/example/lib/animation_state_events.dart

// ignore_for_file: avoid_print
import 'package:spine_flutter/spine_flutter.dart';
import 'package:flutter/material.dart';

class AnimationStateEvents extends StatelessWidget {
  const AnimationStateEvents({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    reportLeaks();
    final controller = SpineWidgetController(
      onInitialized: (controller) {
        controller.skeleton.setScaleX(0.5);
        controller.skeleton.setScaleY(0.5);
        controller.skeleton.findSlot("gun")?.setColor(Color(1, 0, 0, 1));
        controller.animationStateData.setDefaultMix(0.2);
        controller.animationState.setAnimationByName(0, "walk", true).setListener((type, trackEntry, event) {
          print("Walk animation event $type");
        });
        controller.animationState.addAnimationByName(0, "jump", false, 2);
        controller.animationState.addAnimationByName(0, "run", true, 0).setListener((type, trackEntry, event) {
          print("Run animation event $type");
        });
        controller.animationState.setListener((type, trackEntry, event) {
          if (type == EventType.event) {
            print(
              "User event: { name: ${event?.getData().getName()}, intValue: ${event?.getIntValue()}, floatValue: ${event?.getFloatValue()}, stringValue: ${event?.getStringValue()} }",
            );
          }
        });
        print("Current: ${controller.animationState.getCurrent(0)?.getAnimation().getName()}");
      },
    );

    return Scaffold(
      appBar: AppBar(title: const Text('Animation State Listener')),
      body: Column(
        children: [
          const Text("See output in console!"),
          Expanded(child: SpineWidget.fromAsset("assets/spineboy.atlas", "assets/spineboy-pro.skel", controller)),
        ],
      ),
    );
  }
}