Question

我创建了一个滑动抽屉动画，可以同时打开/关闭和增大/缩小。我正在使用ValueAnimator并且在AnimatorUpdateListener内部我操纵视图的边距来增加或减少（增大/缩小）它的大小。同时，ValueAnimator正在处理开启和关闭。对于Galaxy Mega 2手机，这款动画非常不稳定;根本不顺利。所有其他手机，无论新旧，似乎都运行良好。有什么方法可以解决这个问题吗？

            // close drawer
            ValueAnimator animator = ValueAnimator.ofInt(0, 100);
            animator.setInterpolator(new AccelerateInterpolator());
            animator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {

                @Override
                public void onAnimationUpdate(ValueAnimator animation) {
                    float ratio = ((Integer) animation.getAnimatedValue() / 100);

                    // moves the drawer to the left and reduces its size by changing its margins
                    mDrawerParams.setMargins((int) (mLeftMargin * ratio), (Integer) animation.getAnimatedValue(),
                            0, (Integer) animation.getAnimatedValue());
                    rlDrawer.setLayoutParams(mDrawerParams);
}

以下是我打开抽屉的方式

            // open drawer
            ValueAnimator animator = ValueAnimator.ofInt(100, 0);
            animator.setInterpolator(new AccelerateInterpolator());
            animator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {

                @Override
                public void onAnimationUpdate(ValueAnimator animation) {
                    float ratio = ((Integer) animation.getAnimatedValue() / 100);

                    // moves the drawer to the right and increases its size by changing its margins
                    mDrawerParams.setMargins((int) (mLeftMargin * ratio), (Integer) animation.getAnimatedValue(),
                            0, (Integer) animation.getAnimatedValue());
                    rlDrawer.setLayoutParams(mDrawerParams);
}

Answer 1

如果您更改了layoutParams，则在名为onRequesLayout的View上，存在滞后。您需要更改属性。更改translation_x，scale_x，scale_y属性。例如：

Animator animator = ObjectAnimator.ofFloat(drawerLayout, View.TRANSLATION_X, 0, (float) );

动画仅落后于Galaxy Mega 2手机

1 个答案: