xml中的Android导航栏大小
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Android navigation bar size in xml
提问by fragon
Is there any way to get the size of navigation bar in android in xml file similar to this?
有什么方法可以在与此类似的xml文件中获取android中导航栏的大小吗？
android:paddingTop="?android:attr/actionBarSize"
where actionBarSize is navigation bar size?
actionBarSize 是导航栏大小？
回答by Ga?tan M.
After looking in android source it looks like there is dimens for navigation bar height :
在查看 android 源代码后，它看起来导航栏高度有尺寸：
@android:dimen/navigation_bar_height
Thereare other dimens linked to nav bar, examples from android values/dimens.xml :
还有其他维度链接到导航栏，来自 android values/dimens.xml 的示例：
<!-- Height of the bottom navigation / system bar. -->
<dimen name="navigation_bar_height">48dp</dimen>
<!-- Height of the bottom navigation bar in portrait; often the same as @dimen/navigation_bar_height -->
<dimen name="navigation_bar_height_landscape">48dp</dimen>
<!-- Width of the navigation bar when it is placed vertically on the screen -->
<dimen name="navigation_bar_width">42dp</dimen>
回答by Max
回答by mayank1513
As suggested in many of similar questions, for example this, this, this, and this, simply getting navigation bar height may not be enough. We need to consider whether 1. navigation bar exists, 2. is it on the bottom, or right or left, 3. is app open in multi-window mode.
正如许多类似问题中所建议的那样，例如this、this、this和this，仅仅获取导航栏高度可能是不够的。我们需要考虑1.导航栏是否存在，2.是在底部，还是在右边或左边，3.应用程序是否在多窗口模式下打开。
There is a simple one line solution
有一个简单的单行解决方案
android:fitsSystemWindows="true"
or programatically
或以编程方式
findViewById(R.id.your_root_view).setFitsSystemWindows(true);
you may also get root view by
您也可以通过以下方式获得根视图
findViewById(android.R.id.content).getRootView();
or
getWindow().getDecorView().findViewById(android.R.id.content)
For more details on getting root-view refer - https://stackoverflow.com/a/4488149/9640177
有关获取根视图的更多详细信息，请参阅 - https://stackoverflow.com/a/4488149/9640177
