属性动画和保存状态

 SharedPreferences sharedPreferences = getSharedPreferences("sss", MODE_PRIVATE);
    SharedPreferences.Editor edit = sharedPreferences.edit();

    boolean is = sharedPreferences.getBoolean("is", false);
    edit.putBoolean("is", true);
    edit.commit();
    if (is) {
        startActivity(new Intent(MainActivity.this, XiangQingActivity.class));
        finish();
    } else {
        ObjectAnimator y = ObjectAnimator.ofFloat(imageView, "Y", 0, 500, 800);
        //透明
        ObjectAnimator alpha = ObjectAnimator.ofFloat(imageView, "alpha", 0.0f, 1);
        //旋转
        ObjectAnimator rotationX = ObjectAnimator.ofFloat(imageView, "rotationX", 0, 360);
        ObjectAnimator rotationY = ObjectAnimator.ofFloat(imageView, "rotationY", 0, 360);
        //缩放
        ObjectAnimator scaleX = ObjectAnimator.ofFloat(imageView, "scaleX", 0.2f, 1);
        ObjectAnimator scaleY = ObjectAnimator.ofFloat(imageView, "scaleY", 0.2f, 1);

        //组合
        AnimatorSet animatorSet = new AnimatorSet();

        //放到一起
        animatorSet.play(y).with(alpha).with(rotationX).with(rotationY).with(scaleX).with(scaleY);

        animatorSet.setDuration(3000);
        animatorSet.start();

        animatorSet.addListener(new Animator.AnimatorListener() {
            @Override
            public void onAnimationStart(Animator animator) {

            }

            @Override
            public void onAnimationEnd(Animator animator) {
                //动画结束跳转页面
                startActivity(new Intent(MainActivity.this, XiangQingActivity.class));
                finish();
            }

            @Override
            public void onAnimationCancel(Animator animator) {

            }

            @Override
            public void onAnimationRepeat(Animator animator) {

            }
        });
    }
}

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