逐帧动画与补间动画的结合简单使用-蝴蝶飞舞

public class MainActivity extends AppCompatActivity {
    //蝴蝶初始位置
    private float curx = 0;
    private float cury = 0;
    //蝴蝶飞到下一个点的位置
    float nextx = 0;
    float nexty = 0;
    ImageView imageView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        imageView = (ImageView) findViewById(R.id.butterfly);
        curx = imageView.getX();
        cury = imageView.getY();
        Log.i("mydate" , curx +"  " + cury);
        final AnimationDrawable butterfly = (AnimationDrawable) imageView.getBackground();
        butterfly.start(); //一开始就执行震动翅膀的逐帧动画
    }

    @Override
    public boolean onTouchEvent(MotionEvent event) {
        if (event.getAction() == MotionEvent.ACTION_DOWN){
            nextx = event.getX();
            nexty = event.getY();
            TranslateAnimation anim = new TranslateAnimation(curx , nextx , cury , nexty);
            anim.setDuration(5000);
            anim.setFillAfter(true);
            imageView.startAnimation(anim); //从一点飞向另一点的补间动画
            curx = nextx;
            cury = nexty;
        }
        return true;
    }


}