Question

我试图移除显示视图，但是看起来像是在旋转卡片以下是旋转视图，但不是我想要做的。

<set xmlns:android="http://schemas.android.com/apk/res/android">  
    <rotate  
        android:duration="1500"  
        android:fromDegrees="0"   
        android:pivotX="100%"  
        android:pivotY="50%"  
        android:startOffset="0"  
        android:toDegrees="220" />
</set>

我所追求的不是固定中心周围的旋转，而是类似于扔卡的动作我怎样才能做到这一点？

更新
我在@loadedion回答之后尝试了这个但是没有工作：

ObjectAnimator rotateAnimation = ObjectAnimator.ofFloat(rootView, "rotation", 0.0f, 360f);  
rotateAnimation.setDuration(5000);  

ObjectAnimator throwAnimation = ObjectAnimator.ofFloat(rootView, "x", rootView.getX(), rootView.getX() + 200);  
throwAnimation.setInterpolator(new AccelerateInterpolator());
        throwAnimation.setDuration(3000);  
ObjectAnimator throwAnimation2 = ObjectAnimator.ofFloat(rootView, "y", rootView.getY(), rootView.getY() + 200);    
throwAnimation.setInterpolator(new AccelerateInterpolator());  
throwAnimation.setDuration(3000);  
AnimatorSet cardThrowAnimations = new AnimatorSet();  
cardThrowAnimations.playSequentially(rotateAnimation, throwAnimation, throwAnimation2);
        cardThrowAnimations.start();

Answer 1

如果您想要旋转视图，则必须对其应用动画。

ObjectAnimator rotateAnimation = ObjectAnimator.ofFloat(targetView, "rotation", 0.0f, 360f);
rotateAnimation.setRepeatCount(ObjectAnimator.INFINITE);
rotateAnimation.setRepeatMode(ObjectAnimator.RESTART);
rotateAnimation.setInterpolator(new LinearInterpolator());
rotateAnimation.setDuration(DURATION_ROTATION);

如果你希望它在旋转时像抛出的卡一样滑出，你可以创建另一个ObjectAnimator来设置它的x位置。

ObjectAnimator throwAnimation = ObjectAnimator.ofFloat(targetView, "x", targetView.getX(), targetView.getX() + 500); // move 500 pixels to the right
throwAnimation.setInterpolator(new AccelerateInterpolator());
throwAnimation.setDuration(DURATION_THROW);

然后开始制作动画

rotateAnimation.start();
throwAnimation.start();

或者，您也可以将它们组合在AnimatorSet中，以便一起启动它们：

AnimatorSet cardThrowAnimations = new AnimatorSet();
cardThrowAnimations.playTogether(rotateAnimation, throwAnimation);
cardThrowAnimations.start();

旋转链动画直到视图窗外

1 个答案: