动画属性

public class MainActivity extends AppCompatActivity {

private ImageView iv;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    //获取资源id
    iv=findViewById(R.id.iv);
    //初始化数据
    initData();
}
/**
 * 初始化数据
 */
private void initData() {
    getSupportActionBar().hide();//隐藏标题栏
    DisplayMetrics displayMetrics=getResources().getDisplayMetrics();
    int height = displayMetrics.heightPixels;//屏幕高度
    //缩放
    ObjectAnimator objectAnimator1=ObjectAnimator.ofFloat(iv,"scaleX",2,1);
    //渐变
    ObjectAnimator objectAnimator2=ObjectAnimator.ofFloat(iv,"alpha",0,1);
    //旋转
    ObjectAnimator objectAnimator3=ObjectAnimator.ofFloat(iv,"rotation",0,360);
    //移动
    ObjectAnimator objectAnimator4=ObjectAnimator.ofFloat(iv,"translationY",0,height/2-iv.getHeight()/2);
    //组合
    AnimatorSet set = new AnimatorSet();
    set.play(objectAnimator1).with(objectAnimator2).with(objectAnimator3).with(objectAnimator4);
    //设置时间
    set.setDuration(3000);
    //开启
    set.start();
    ///动画执行监听
    set.addListener(new Animator.AnimatorListener() {
        @Override
        public void onAnimationStart(Animator animation) {

        }

        @Override
        public void onAnimationEnd(Animator animation) {
            //跳转页面
            startActivity(new Intent(MainActivity.this,showActivity.class));
            finish();
        }

        @Override
        public void onAnimationCancel(Animator animation) {

        }

        @Override
        public void onAnimationRepeat(Animator animation) {

        }
    });
}

}