Android Animation（四）AnimationListener

利用AnimationListener在一个动画完成之后，继续执行下一个动画

1.activity_main.xml

<?xml version="1.0" encoding="utf-8"?>

2.MainActivity.java

public class MainActivity extends AppCompatActivity{    private ImageView imageView;    private Button btnStart;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        imageView = (ImageView) findViewById(R.id.image_view);        btnStart = (Button) findViewById(R.id.btn_start);        btnStart.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                AnimationSet animationSet = new AnimationSet(true);                ScaleAnimation scaleAnimation = new ScaleAnimation(0,0.1f,0,0.1f, Animation.RELATIVE_TO_SELF,0.5f,Animation.RELATIVE_TO_SELF,0.5f);                final RotateAnimation rotateAnimation = new RotateAnimation(0,360,Animation.RELATIVE_TO_SELF,0.5f,Animation.RELATIVE_TO_SELF,0.5f);                rotateAnimation.setDuration(5000);                scaleAnimation.setDuration(5000);                //设置一个动画监听器                scaleAnimation.setAnimationListener(new Animation.AnimationListener() {                    @Override                    //动画开始的时候执行的方法                    public void onAnimationStart(Animation animation) {                        Toast.makeText(MainActivity.this,"动画开始了",Toast.LENGTH_SHORT).show();                    }                    @Override                    //动画结束的时候执行的方法                    public void onAnimationEnd(Animation animation) {                        Toast.makeText(MainActivity.this,"动画结束了",Toast.LENGTH_SHORT).show();                        imageView.startAnimation(rotateAnimation);                    }                    @Override                    //动画重复的时候执行的方法                    public void onAnimationRepeat(Animation animation) {                    }                });                animationSet.addAnimation(rotateAnimation);                animationSet.addAnimation(scaleAnimation);                imageView.startAnimation(animationSet);            }        });    }}

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