android - 使用 FrameLayout 改变绝对位置

Question

我有一个 View 应该显示在某些图像的特定位置，我已经使用 AbsoluteLayout 做到了，但我不想使用它，我试图通过 FrameLayout 获得相同的结果。

但我无法让它工作，这是我的两次尝试:

public void showVideo(RectF bounds) {
    FrameLayout.LayoutParams params = (FrameLayout.LayoutParams) video.getLayoutParams();
    params.width = (int) bounds.width();
    params.height = (int) bounds.height();
    int x = (int) viewer.getPageXOffset();
    int y = (int) viewer.getPageYOffset();

    video.setPadding((int) (x + bounds.left), (int) (y + bounds.top), (int) (x + bounds.right),
            (int) (y + bounds.bottom));

    video.setLayoutParams(params);
    video.invalidate();

    video.setVisibility(View.VISIBLE);
    video.setFocusable(true);
    video.setFocusableInTouchMode(true);
    video.requestFocus();
}

和:

public void showVideo(RectF bounds, final String videoUrl) {
    FrameLayout.LayoutParams params = (FrameLayout.LayoutParams) video.getLayoutParams();
    params.width = (int) bounds.width();
    params.height = (int) bounds.height();
    int x = (int) (viewer.getPageXOffset() + bounds.left);
    int y = (int) (viewer.getPageYOffset() + bounds.top);

    params.leftMargin = x;
    params.topMargin = y;

    video.setLayoutParams(params);
    video.invalidate();

    video.setVisibility(View.VISIBLE);
    video.setFocusable(true);
    video.setFocusableInTouchMode(true);
    video.requestFocus();
}

但在这两种情况下，VideoView 都显示在 v(0,0)(左上角)处。

Answer 1

当您在 LayoutParams 中设置重力时，它应该可以工作。

尝试

params.gravity = Gravity.LEFT | Gravity.TOP;

开始。