ObjectAnimator

ObjectAnimator objectAnimator1 = ObjectAnimator.ofFloat(imageView, "translationX", 300);
objectAnimator1.setInterpolator(new AccelerateInterpolator());
objectAnimator1.setDuration(2000);
objectAnimator.setRepeatCount(ValueAnimator.INFINITE);//Animation.INFINITE 表示重複多次
objectAnimator.setRepeatMode(ValueAnimator.RESTART);//RESTART表示從頭開始，REVERSE表示從末尾倒播
objectAnimator1.start();
 

動畫屬性值（x和y的值是以你當前的位置為參考）

translationX和translationY：增量控制view從它佈局容器左上角座標偏移

ObjectAnimator.ofFloat(imageView, "translationX", 300f);

rotation、rotationX、rotationY：控制view繞支點進行2D或3D旋轉

ObjectAnimator.ofFloat(imageView, "rotation", 360);

scaleX、scaleY：控制view繞支點進行2D縮放

ObjectAnimator.ofFloat(imageView, "scaleX", 1f, 0.5f，1f);
 

alpha：控制view透明度，預設是1（不透明），0完全透明（不可見）

ObjectAnimator.ofFloat(imageView, "alpha", 1f, 0.5f);

x和y：描述view在容器最終位置

動畫監聽

ObjectAnimator objectAnimator1 = ObjectAnimator.ofFloat(imageView, "alpha", 0.5f, 1f);
objectAnimator1.addListener(new Animator.AnimatorListener() {
    @Override
    public void onAnimationStart(Animator animation) {

    }

    @Override
    public void onAnimationEnd(Animator animation) {
        //一般我們只關注動畫完成後 所以要寫什麼程式碼 只是在這個方法裡寫

    }

    @Override
    public void onAnimationCancel(Animator animation) {

    }

    @Override
    public void onAnimationRepeat(Animator animation) {

    }
});
 

ValueAnimator

ValueAnimator 本身不提供任何動畫效果，像個數值 發生器，用來產生具有一點規律數字。

ValueAnimator valueAnimator = ValueAnimator.ofInt(0, 100);
valueAnimator.setTarget(imageView);
valueAnimator.setDuration(2000).start();
valueAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
    @Override
    public void onAnimationUpdate(ValueAnimator animation) {
        Int value = (Integer) animation.getAnimatedValue();
        //TODO use the value
        Toast.makeText(getApplicationContext(), "value=" + value, Toast.LENGTH_LONG).show();
    }
});

AnimatorSet

ObjectAnimator objectAnimator1 = ObjectAnimator.ofFloat(imageView, "alpha", 1f, 0.5f);
ObjectAnimator objectAnimator2 = ObjectAnimator.ofFloat(imageView, "translationY", 300);
ObjectAnimator objectAnimator3 = ObjectAnimator.ofFloat(imageView, "scaleX", 1f, 0, 1f);
AnimatorSet animatorSet = new AnimatorSet();
animatorSet.setDuration(5000);
animatorSet.playTogether(objectAnimator1, objectAnimator2,objectAnimator3);
animatorSet.start();