在Activity启动时会自动运行动画

ImageView image = (ImageView) findViewById(R.id.animation_view);   

  

image.setBackgroundResource(R.anim.oldsheep_wait);   

  

animationDrawable = (AnimationDrawable) image.getBackground();   

image.post(new Runnable()   

{   

            @Override   

            public void run()   

            {   

                animationDrawable.start();  

            }   

  

        });