多张图片双击启用动画放大滑动下一张后再双击抛异常

[figbin]

复现步骤：
1、进入ExtendedImageGesturePageView 默认打开第一张图initialPage=0。双击缩放，再双击缩小，无问题。
2、滑动到下一页 initialPage=1，双击缩放，抛弃常。
3、如果 itemBuilder: (context, position) { 不返回 ExtendedImage.asset 而直接使用原生 Image 动画正常，不抛弃常。

AnimationController.stop() called after AnimationController.dispose()
flutter: When the exception was thrown, this was the stack:
flutter: #2      AnimationController.stop (package:flutter/src/animation/animation_controller.dart:698:7)
flutter: #3      GestureAnimation.stop (package:extended_image/src/gesture/extended_image_gesture_utils.dart:369:24)
flutter: #4      _ExtendedImageGestureState._handleScaleStart (package:extended_image/src/gesture/extended_image_gesture.dart:77:23)
flutter: #5      _ExtendedImageGestureState.handleDoubleTap (package:extended_image/src/gesture/extended_image_gesture.dart:247:5)
flutter: #6      _My.build.<anonymous closure>.<anonymous closure>.<anonymous closure> (package:testapp/my.dart:72:27)

完整代码：

import 'package:flutter/material.dart';
import 'package:extended_image/extended_image.dart';


class My extends StatefulWidget {

  @override
  _My createState() => _My();
}

class _My extends State<My> with SingleTickerProviderStateMixin {
  AnimationController _animationController;
  Animation<double> _animation;

  @override
  void initState() {
    super.initState();
    _animationController = AnimationController(duration: Duration(milliseconds: 100), vsync: this);
  }

  @override
  void dispose() {
    _animationController.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    List<String> files = ["a.jpg", "b.jpg", 'c.jpg'];
    PageController pageController = PageController();

    return ExtendedImageGesturePageView.builder(
        controller: pageController,
        onPageChanged: (int index){
          print('onPageChanged');
        },
        itemCount: 3,
        itemBuilder: (context, position) {
          var file = files[position];
          return Container(
              child: ExtendedImage.asset(
              "assets/images/$file",
              fit: BoxFit.contain,
              //enableLoadState: false,
              mode: ExtendedImageMode.Gesture,
              gestureConfig: GestureConfig(
                  minScale: 0.9,
                  animationMinScale: 0.7,
                  maxScale: 3.0,
                  animationMaxScale: 3.5,
                  speed: 1.0,
                  inertialSpeed: 100.0,
                  initialScale: 1.0,
                  inPageView: true
              ),
              onDoubleTap: (ExtendedImageGestureState state) {
                double begin = 0.0;
                double end = 0.0;
                if (state.gestureDetails.totalScale == 1.0) {
                  begin = 1.0;
                  end = 2.0;
                } else {
                  begin = state.gestureDetails.totalScale;
                  end = 1.0;
                }

                // PageView: Another exception was thrown: AnimationController.stop() called after AnimationController.dispose()
                try {
                  _animationController.reset();
                  _animation = Tween<double>(begin: begin, end: end).animate(_animationController);
                  _animation.addListener((){
                    state.handleDoubleTap(scale: _animation.value, doubleTapPosition: state.pointerDownPosition);
                  });
                  _animationController.forward();
                }catch(e){
                  print('xxxx');
                }
              }
            )
          );
        });
  }

}

[zmtzawqlp]

@figbin
fix with 59ed7be, please update version 0.3.0, let me konw if it's fixed.