物业Animaton

Question

最近几天，我计划编写一个指南动画，我使用viewpager。但是在第二个寻呼机中，我使用了property Animation，但它没有显示为我的图像。这是代码。

   public class HabitFragmnet extends  BaseFragment {


   private ImageView first;
   @Override
   public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View rootView = inflater.inflate(R.layout.habit_layout, null);
    first = (ImageView) rootView.findViewById(R.id.habit_button);
    startAnimaton();
    return rootView;
}


 @Override
 public void startAnimaton() {
    ValueAnimator firetAnim = ObjectAnimator.ofFloat(first,"scale",0.0f,1.0f);
    firetAnim.setDuration(1000);
    first.setPivotX(first.getWidth());
    first.setPivotY(first.getHeight());
    first.invalidate();
    firetAnim.setInterpolator(new CycleInterpolator(2));
    AnimatorSet set = new AnimatorSet();
    set.play(firetAnim);
    set.start();
}

  @Override
  public void stopAnimation() {

}

谁可以给我一些解决方案？