全屏，无需导航和状态栏 [英] Full Screen without navigation & status bars

问题描述

我想创建一个全屏活动。上面没有像通知栏这样的东西，也没有下面像Home-Button之类的东西。我能够做到这一点，但还想删除home-button栏下面的东西：

这是我的代码。

 < style name = MyScreen parent = @ style / Theme.AppCompat.Light> 
< item name = windowNoTitle> true< / item> 
< item name = windowActionBar> false< / item> 
< item name = android：windowFullscreen> true< / item> 
< item name = android：windowContentOverlay> @ null< / item> 
< / style> 
  

解决方案

您需要的称为

  //此代码段隐藏了系统栏。 
 private void hideSystemUI（）{
 //设置IMMERSIVE标志。 
 //将内容设置为显示在系统栏下方，以便在隐藏和显示系统栏时不会调整内容
 //的大小。 
 mDecorView.setSystemUiVisibility（
 View.SYSTEM_UI_FLAG_LAYOUT_STABLE 
 | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION 
 | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN 
 | View.SYSTEM_UI_FLN | ViewAG .SYSTEM_UI_FLAG_FULLSCREEN //隐藏状态栏
 | View.SYSTEM_UI_FLAG_IMMERSIVE）; 
} 
 
 //此代码段显示系统栏。它通过删除所有标志
 //来做到这一点，除了那些使内容显示在系统栏下方的标志。 
 private void showSystemUI（）{
 mDecorView.setSystemUiVisibility（
 View.SYSTEM_UI_FLAG_LAYOUT_STABLE 
 | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION 
 | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN）; 
} 
  

I want to create a activity with full screen. Nothing on above like Notification Bar and nothing below like Home-Button etc.I am able to get this, but also wanted to remove below home-button bar:

This is my code.

    <style name="MyScreen" parent="@style/Theme.AppCompat.Light">
    <item name="windowNoTitle">true</item>
    <item name="windowActionBar">false</item>
    <item name="android:windowFullscreen">true</item>
    <item name="android:windowContentOverlay">@null</item>
</style>

解决方案

What you need is called Immersive Full-Screen Mode.

// This snippet hides the system bars.
private void hideSystemUI() {
    // Set the IMMERSIVE flag.
    // Set the content to appear under the system bars so that the content
    // doesn't resize when the system bars hide and show.
    mDecorView.setSystemUiVisibility(
            View.SYSTEM_UI_FLAG_LAYOUT_STABLE
            | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
            | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
            | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION // hide nav bar
            | View.SYSTEM_UI_FLAG_FULLSCREEN // hide status bar
            | View.SYSTEM_UI_FLAG_IMMERSIVE);
}

// This snippet shows the system bars. It does this by removing all the flags
// except for the ones that make the content appear under the system bars.
private void showSystemUI() {
    mDecorView.setSystemUiVisibility(
            View.SYSTEM_UI_FLAG_LAYOUT_STABLE
            | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
            | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
}

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