安卓動畫之ObjectAnimator

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ObjectAnimator 不僅僅移動位置,還移動了對象view

先來程式碼片段:

//Y軸變換

ObjectAnimator oa = ObjectAnimator.ofFloat(imageViewList.get(i), "translationY", y0 + y, y0);

//X軸變換
ObjectAnimator ob = ObjectAnimator.ofFloat(imageViewList.get(i), "translationX", x0+x, x0 );
AnimatorSet set = new AnimatorSet();
set.playTogether(oa, ob);
set.setInterpolator(new BounceInterpolator());
set.setDuration(500);

set.start();

 

//設定繞X軸旋轉

ObjectAnimator of =
ObjectAnimator.ofFloat(imageViewList.get(i),"rotationX", 0.0F, 360.0F).setDuration(500);

設定動畫順序。

有些時候,某些動畫的開始需要依賴於其他動畫的開始或結束,這時候就可以使用AnimatorSet來綁定這些Animator了。 
  1. AnimatorSet bouncer = new AnimatorSet();  
  2. bouncer.play(bounceAnim).before(squashAnim1);  
  3. bouncer.play(squashAnim1).with(squashAnim2);  
  4. bouncer.play(squashAnim1).with(stretchAnim1);  
  5. bouncer.play(squashAnim1).with(stretchAnim2);  
  6. bouncer.play(bounceBackAnim).after(stretchAnim2);  
  7. ValueAnimator fadeAnim = ObjectAnimator.ofFloat(newBall, "alpha", 1f, 0f);  
  8. fadeAnim.setDuration(250);  
  9. AnimatorSet animatorSet = new AnimatorSet();  
  10. animatorSet.play(bouncer).before(fadeAnim);  
  11. animatorSet.start();  

 

動畫效果:

 

github地址:

https://github.com/cxmscb/ObjectAnimation01

安卓動畫之ObjectAnimator

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