卡片翻转动画在 Android 7 Nougat 上看起来不太好

Question

感谢您阅读我的问题。 我的问题只出现在 android 7.0 (Nougat) 中，它发生的是卡片（带有图像视图的片段）当它在动画中旋转时，它突然裁剪了部分图像，看：

Android 7 Nougat 截图

Card in rotation

Android 4.4 Kitkat 截图

Card in rotation

我正在使用动画（还不是 objectAnimator），这是我的代码：

@Override
protected void applyTransformation(float interpolatedTime, Transformation t) {
    // Angle around the y-axis of the rotation at the given time
    // calculated both in radians and degrees.
    final double radians = Math.PI * interpolatedTime;
    float degrees = (float) (180.0 * radians / Math.PI);

    Log.d(LOG_TAG," "+interpolatedTime);

    // Once we reach the midpoint in the animation, we need to hide the
    // source view and show the destination view. We also need to change
    // the angle by 180 degrees so that the destination does not come in
    // flipped around
    if (interpolatedTime >= 0.5f) {
        degrees -= 180.f;
        fromView.setVisibility(View.GONE);
        toView.setVisibility(View.VISIBLE);

    }

    if (forward)
        degrees = -degrees; //determines direction of rotation when flip begins


    //computing
    final Matrix matrix = t.getMatrix();
    camera.save();
    camera.translate(0, 0, Math.abs(degrees) * 3f);
    camera.rotateY(degrees);
    camera.getMatrix(matrix);
    camera.restore();
    matrix.preTranslate(-centerX, -centerY);
    matrix.postTranslate(centerX, centerY);
}

非常感谢您分享您的想法。 :)

Answer 1

阅读https://developer.android.com/reference/android/view/View.html#setCameraDistance(float)

您必须设置相机距离。 我知道这个问题很老了，但我希望这对某人有所帮助。