Android onAnimationEnd未被调用

因为animator set不提供重复功能， 我正在实现我自己的重复逻辑

但我有个问题

首先，让我向您展示我的示例代码，如下所示

我的主要活动->

public class MainActivity extends AppCompatActivity {

    private ImageView imageView;
    private Button button;

    private AnimatorSet animatorSet;
    private Repetition repetition;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        imageView = (ImageView) findViewById(R.id.image_view);
        button = (Button) findViewById(R.id.button);

        animatorSet = new AnimatorSet();
        repetition = new Repetition();

        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                startAnimation();
            }
        });
    }

    private void startAnimation() {
        imageView.post(new Runnable() {
            @Override
            public void run() {
                final ObjectAnimator moveY = ObjectAnimator.ofFloat(imageView, "y", imageView.getY(), imageView.getY() - 200F);
                moveY.setDuration(1000);

                final ObjectAnimator rotation = ObjectAnimator.ofFloat(imageView, "rotation", 0F, 360F);
                rotation.setDuration(1000);

                repetition.repeat(animatorSet, 10);

                List<Animator> list = new ArrayList<>();

                list.add(moveY);
                list.add(rotation);

                // problem is here, if i run a single animator, repetition class can not get onAnmationEnd callback.
                animatorSet.play(moveY);

                // if i run playSequentially with multiple animators it works properly;
//                animatorSet.playSequentially(list);
                animatorSet.start();
            }
        });
    }

}

public类MainActivity扩展了AppCompatActivity{
私人影像视图；
私人按钮；
私人动画师集；
私人重复；
@凌驾
创建时受保护的void（Bundle savedInstanceState）{
super.onCreate（savedInstanceState）；
setContentView（R.layout.activity_main）；
imageView=（imageView）findViewById（R.id.image\u视图）；
按钮=（按钮）findViewById（R.id.button）；
animatorSet=新的animatorSet（）；
重复=新的重复（）；
setOnClickListener（新视图.OnClickListener（）{
@凌驾
公共void onClick（视图v）{
startAnimation（）；
}
});
}
私有void startAnimation（）{
post（新的Runnable（）{
@凌驾
公开募捐{
final ObjectAnimator moveY=ObjectAnimator.offload（imageView，“y”，imageView.getY（），imageView.getY（）-200F）；
moveY.setDuration（1000）；
最终ObjectAnimator旋转=ObjectAnimator.offload（图像视图，“旋转”，0F，360F）；
轮换。设定持续时间（1000）；
重复。重复（动画师集，10）；
列表=新的ArrayList（）；
列表。添加（移动）；
增加（轮换）；
//问题是，若我只运行一个动画师，那个么重复类就不能得到OnAnimationEnd回调。
动画集。播放（移动）；
//如果我与多个动画师按顺序运行Play，它将正常工作；
//按顺序播放动画集（列表）；
animatorSet.start（）；
}
});
}
}

我的重复支持课程->

public class MainActivity extends AppCompatActivity {

    private ImageView imageView;
    private Button button;

    private AnimatorSet animatorSet;
    private Repetition repetition;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        imageView = (ImageView) findViewById(R.id.image_view);
        button = (Button) findViewById(R.id.button);

        animatorSet = new AnimatorSet();
        repetition = new Repetition();

        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                startAnimation();
            }
        });
    }

    private void startAnimation() {
        imageView.post(new Runnable() {
            @Override
            public void run() {
                final ObjectAnimator moveY = ObjectAnimator.ofFloat(imageView, "y", imageView.getY(), imageView.getY() - 200F);
                moveY.setDuration(1000);

                final ObjectAnimator rotation = ObjectAnimator.ofFloat(imageView, "rotation", 0F, 360F);
                rotation.setDuration(1000);

                repetition.repeat(animatorSet, 10);

                List<Animator> list = new ArrayList<>();

                list.add(moveY);
                list.add(rotation);

                // problem is here, if i run a single animator, repetition class can not get onAnmationEnd callback.
                animatorSet.play(moveY);

                // if i run playSequentially with multiple animators it works properly;
//                animatorSet.playSequentially(list);
                animatorSet.start();
            }
        });
    }

}

它正在侦听animator的生命周期，如果动画结束，则在onAnimationEnd回调中将所需动画重复计数与当前重复计数进行比较。如果我只运行一个动画师。。onAnimationEnd未被调用

只是第一次调用onAnimationEnd

public class Repetition implements Animator.AnimatorListener {

    private AnimatorSet animatorSet;
    private int repeatCount;

    private int currentRepeatCount;

    public void repeat(AnimatorSet animatorSet, int repeatCount) {
        this.animatorSet = animatorSet;
        this.repeatCount = repeatCount;

        animatorSet.removeAllListeners();
        animatorSet.addListener(this);
    }

    @Override
    public void onAnimationStart(Animator animation) {
        Log.d("RepeatitionLog", "onAnimationStart");
    }

    @Override
    public void onAnimationEnd(Animator animation) {
        if(currentRepeatCount < repeatCount) {
            animatorSet.start();
            currentRepeatCount++;
            Log.d("RepeatitionLog", "onAnimationRepeat by repetition");
            Log.d("RepeatitionLog", "currentRepeatCount : " + currentRepeatCount);
        } else {
            Log.d("RepeatitionLog", "onAnimationEnd");
        }
    }

    @Override
    public void onAnimationCancel(Animator animation) {
        Log.d("RepeatitionLog", "onAnimationCancel");
    }

    @Override
    public void onAnimationRepeat(Animator animation) {
        Log.d("RepeatitionLog", "onAnimationRepeat");
    }
}

公共类重复实现Animator.AnimatorListener{
私人动画师集；
私有整数重复计数；
私有int-currentRepeatCount；
公共无效重复（AnimatorSet AnimatorSet，int repeatCount）{
this.animatorSet=animatorSet；
this.repeatCount=repeatCount；
animatorSet.removeAllListeners（）；
animatorSet.addListener（此）；
}
@凌驾
AnimationStart（动画师动画）上的公共无效{
Log.d（“repeationlog”、“onAnimationStart”）；
}
@凌驾
AnimationEnd上的公共无效（Animator动画）{
如果（currentRepeatCount

我将感谢任何帮助

谢谢