Android动画之 PropertyValuesHolder

PropertyValuesHolder这个类可以先将动画属性和值暂时的存储起来，后一起执行，在有些时候可以使用替换掉AnimatorSet

//keyframe
Keyframe keyframe1 = Keyframe.ofFloat(0.0f,0);
Keyframe keyframe2 = Keyframe.ofFloat(0.25f,-30);
Keyframe keyframe3 = Keyframe.ofFloat(0.5f,0);
Keyframe keyframe4 = Keyframe.ofFloat(0.75f, 30);
Keyframe keyframe5 = Keyframe.ofFloat(1.0f,0);
PropertyValuesHolder rotation = PropertyValuesHolder.ofKeyframe("rotation", keyframe1, keyframe2, keyframe3, keyframe4,keyframe5);

PropertyValuesHolder alpha = PropertyValuesHolder.ofFloat("alpha",1.0f,0.2f,1.0f);
PropertyValuesHolder scaleX = PropertyValuesHolder.ofFloat("scaleX",1.0f,0.2f,1.0f);
PropertyValuesHolder scaleY = PropertyValuesHolder.ofFloat("scaleY",1.0f,0.2f,1.0f);
PropertyValuesHolder color = PropertyValuesHolder.ofInt("BackgroundColor", 0XFFFFFF00, 0XFF0000FF);

ObjectAnimator animator = ObjectAnimator.ofPropertyValuesHolder(mButton, alpha, scaleX, scaleY,color,rotation);
animator.setInterpolator(new OvershootInterpolator());
animator.setDuration(5000).start();