android - 检测 View 是否重叠

Question

我在其他尺寸的屏幕上绘制 View 时遇到问题!我需要具有两个 View 类型参数的方法。如果第一个 View 与第二个 View 重叠，则返回 true，在另一种情况下返回 false!

和

Answer 1

您还可以使用 Rect.intersect() 来查找重叠 View 。

    int[] firstPosition = new int[2];
    int[] secondPosition = new int[2];

    firstView.getLocationOnScreen(firstPosition);
    secondView.getLocationOnScreen(secondPosition);

    // Rect constructor parameters: left, top, right, bottom
    Rect rectFirstView = new Rect(firstPosition[0], firstPosition[1],
            firstPosition[0] + firstView.getMeasuredWidth(), firstPosition[1] + firstView.getMeasuredHeight());
    Rect rectSecondView = new Rect(secondPosition[0], secondPosition[1],
            secondPosition[0] + secondView.getMeasuredWidth(), secondPosition[1] + secondView.getMeasuredHeight());
    return rectFirstView.intersect(rectSecondView);