Android RotateAnimation错误

Question

我有一个RotateAnimation附加到ImageButton，点按此按钮后，OnAnimationEnd启动一个新的活动。

问题是它不起作用。关闭我的应用程序并返回后，我在new Activity(..)内，当我返回时，动画执行。我希望动画发生，然后开始新的活动。

出于某种原因，在使用相同的代码之前它工作得很好，但我不知道，一些微不足道的改变可能会影响它。

这是代码

 public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState); 
    this.requestWindowFeature(Window.FEATURE_NO_TITLE);         
     setContentView(R.layout.menu);
    ImageButton amazingPicsButton = (ImageButton) findViewById(R.id.amazingPics),              
   setViewOnClick(amazingPicsButton, new Intent("com.jasfiddle.AmazingInterface.AMAZINGPICS"));     
}
/**
 * Generic OnClick setter method for giving various View objects a click listener
 * @param b
 * @param intent
 */
private <B> void setViewOnClick(B b, final Intent intent){
    ((View) b).setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub

            amazingPicsSound = createRandButSound();
            amazingPicsSound.start();
            rotateAndNewActivity(v, intent);

        }
    });         

}


/** function that produces rotation animation on the View v.
 * Could be applied to button, ImageView, ImageButton, etc.
 */
private void rotateAndNewActivity(View v, final Intent intent){
    // Create an animation instance
    Animation an = new RotateAnimation(30, 360, v.getWidth()/2, v.getHeight()/2);
    an.setDuration(50);               // duration in ms
    an.setRepeatCount(3);                // -1 = infinite repeate

    /*we override the Animation an object to include the start of an new Activity
    at the end of animation */
     an.setAnimationListener(new AnimationListener(){
        @Override
        public void onAnimationStart(Animation animation) {
            // TODO Auto-generated method stub
        }
        @Override
        public void onAnimationRepeat(Animation animation) {
            // TODO Auto-generated method stub  
        }

        //start the activity onAnimationEnd
        @Override
        public void onAnimationEnd(Animation animation) {
            // TODO Auto-generated method stub
            startActivity(intent);
        }       
     });
    // Set the animation's parameters


    v.setAnimation(an);

}

Answer 1

setAnimation仅设置要在View上播放的下一个动画。要立即开始动画，请使用startAnimation

在您的情况下，请使用v.startAnimation(an);