如何从使用setContentView设置的布局中获取根ViewGroup? [英] How to get root ViewGroup from a layout that was set using setContentView?

问题描述

我似乎找不到找到该ViewGroup的方法.不确定是否有获取ViewGroups的标准方法.

I cannot seem to find a way to get this ViewGroup. Not sure if there are any standard ways to get ViewGroups.

我要完成的工作是在运行时向所有Layout动态添加全屏覆盖视图，为此，我始终需要获取根ViewGroup.这是正确的方法吗?

What I want to accomplish is to dynamically add a full screen overlay view to any Layout at run time, and in order to do this, I always need to get the root ViewGroup. Is this the right way to do this?

推荐答案

尝试使用

ViewGroup view = (ViewGroup) findViewById(android.R.id.content);

每个布局都将此ViewGroup作为父级.

Every layout has this ViewGroup as parent.

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