MainActivity.java 文件源码

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    Button button =(Button)findViewById(R.id.button);

    view = (ImageView)findViewById(R.id.imageView);
    button.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            view.setBackgroundResource(R.drawable.face_emotion);
            AnimationDrawable frameAnimation2 = (AnimationDrawable) view.getBackground();
            frameAnimation2.stop();
            frameAnimation2.start();
        }
    });


}