检查导航栏 [英] Check for navigation bar

问题描述

我想检查一下Android的导航条是负载present这样我就可以相应地调整布局，没有任何人有什么建议？

I am trying to check to see whether the android navigation bar is present on load so that I can adjust a layout accordingly, does anyone have any suggestions?

这是导航栏，我试图检测：

This is the navigation bar I am trying to detect:

P.S。所有我发现至今都坏的方式，试图删除了吧，这是我不想做的事。

P.S. All I have found so far are 'bad' ways to try and remove the bar, which I dont want to do.

推荐答案

我花了一些时间，但我已经找到了一个更可靠的方法不是依靠 hasPermanentMenuKey（）不为新工作手机一样的的HTC One 这没有菜单键，但确实有家庭及放大器;回键，以便不需要（或节目）软导航栏。为了解决这个试试下面的code这对于一个后退按钮检查过：

Took me some time but I've found a more reliable way than relying on hasPermanentMenuKey() which doesn't work for newer phones like the HTC One which have no menu key but do have home & back keys so don't need (or show) the soft navigation bar. To get around this try the following code which checks for a back button too:

boolean hasMenuKey = ViewConfiguration.get(context).hasPermanentMenuKey();
boolean hasBackKey = KeyCharacterMap.deviceHasKey(KeyEvent.KEYCODE_BACK);

if(!hasMenuKey && !hasBackKey) {
    // Do whatever you need to do, this device has a navigation bar
}

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