MainActivity.java 文件源码

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    ImageView mFabView = (ImageView) findViewById(R.id.fab_view);

    // animate head to leaf
    final AnimatedVectorDrawable faceAVD = (AnimatedVectorDrawable) ContextCompat.getDrawable(this, R.drawable.face_avd);
    mFabView.setImageDrawable(faceAVD);

    findViewById(R.id.animate_btn).setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            faceAVD.start();
        }
    });
}