D10-Android自定义控件之动画篇2-动画监听

AnimatorSet set = new AnimatorSet();
set
        .play(translationX())
        .with(alpha())
        .after(1000)
        .before(scaleX())
        .before(scaleY());
set.start();

   //动画开启时回调
    void onAnimationStart(Animator animation);
    //动画结束时回调
    void onAnimationEnd(Animator animation);
    //动画取消时回调
    void onAnimationCancel(Animator animation);
    //重复时回调
    void onAnimationRepeat(Animator animation);

mTranslationX = translationX();
mTranslationX.setRepeatMode(ValueAnimator.REVERSE);
mTranslationX.setRepeatCount(ValueAnimator.INFINITE);

mTranslationX.addListener(new Animator.AnimatorListener() {
    @Override
    public void onAnimationStart(Animator animation) {
        //开始时设为绿色
        setColor(Color.GREEN);
    }

    @Override
    public void onAnimationEnd(Animator animation) {
        //结束时设为蓝色
        setColor(Color.BLUE);
    }

    @Override
    public void onAnimationCancel(Animator animation) {
        //取消是大小变为50
        setCircleR(50);
    }

    @Override
    public void onAnimationRepeat(Animator animation) {
        //重复时设为随机色
        setColor(ColUtils.randomColor());
    }
});
mTranslationX.start();

 mTranslationX.cancel();//取消动画

//暂停回调
void onAnimationPause(Animator animation);
//恢复回调
void onAnimationResume(Animator animation);

mTranslationX.addPauseListener(new Animator.AnimatorPauseListener() {
    @Override
    public void onAnimationPause(Animator animation) {
        setColor(Color.YELLOW);//暂停黄色
    }
    @Override
    public void onAnimationResume(Animator animation) {
        setColor(Color.BLUE);//恢复蓝色
    }
});

//更新时回调
void onAnimationUpdate(ValueAnimator animation);

mTranslationX.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
    @Override
    public void onAnimationUpdate(ValueAnimator animation) {
        mCircleR = (Float) animation.getAnimatedValue();
        invalidate();
    }
});