获得View的宽度测量这个view，最后通过getMeasuredWidth()获取宽度.

最新推荐文章于 2021-01-19 15:06:58 发布

原创最新推荐文章于 2021-01-19 15:06:58 发布 · 375 阅读

0 ·

CC 4.0 BY-SA版权

本文介绍了一个用于测量Android中View尺寸的实用方法。该方法通过设置布局参数并使用ViewGroup的测量规格来获取指定View的宽度。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

public static void measureView(View view) {
    ViewGroup.LayoutParams p = view.getLayoutParams();
    if (p == null) {
        p = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
                ViewGroup.LayoutParams.WRAP_CONTENT);
    }

    int childWidthSpec = ViewGroup.getChildMeasureSpec(0, 0 + 0, p.width);
    int lpHeight = p.height;
    int childHeightSpec;
    if (lpHeight > 0) {
        childHeightSpec = MeasureSpec.makeMeasureSpec(lpHeight,
                MeasureSpec.EXACTLY);
    } else {
        childHeightSpec = MeasureSpec.makeMeasureSpec(0,
                MeasureSpec.UNSPECIFIED);
    }
    view.measure(childWidthSpec, childHeightSpec);
}




public static int getViewWidth(View view) {
    measureView(view);
    return view.getMeasuredWidth();
}