studio的常用动画

渐变
ObjectAnimator animator = ObjectAnimator.ofFloat(textView, "alpha", 1,0,1);

以中心点旋转
ObjectAnimator animator = ObjectAnimator.ofFloat(textView, "rotation", 0,180,0);

public void setAlpha(float alpha)  

//2、旋转度数：rotation、rotationX、rotationY  
public void setRotation(float rotation)  
public void setRotationX(float rotationX)  
public void setRotationY(float rotationY)  

//3、平移：translationX、translationY  
public void setTranslationX(float translationX)   
public void setTranslationY(float translationY)  

//缩放：scaleX、scaleY  
public void setScaleX(float scaleX)  
public void setScaleY(float scaleY)  

组合
AnimatorSet animatorSet = new AnimatorSet();

animatorSet.playTogether(alpha,scaleX);
//运行组合
animatorSet.start();