Android：显示/隐藏状态栏/电源栏

Question

我正在尝试创建一个按钮，我可以隐藏或显示平板电脑上的状态栏。

我已经加入了onCreate

getWindow().addFlags(WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);

并在按钮显示：

WindowManager.LayoutParams attrs = getWindow().getAttributes();
attrs.flags &= ~WindowManager.LayoutParams.FLAG_FULLSCREEN;
getWindow().setAttributes(attrs);

隐藏：

WindowManager.LayoutParams attrs = getWindow().getAttributes();
attrs.flags |= WindowManager.LayoutParams.FLAG_FULLSCREEN;
getWindow().setAttributes(attrs);

任何提示/ tipps？

//编辑

我在这里看了一下这个提示：http://android.serverbox.ch/?p=306并改变了我的代码：

private void hideStatusBar() throws IOException, InterruptedException {
    Process proc = Runtime.getRuntime().exec(new String[]{"su","-c","service call activity 79 s16 com.android.systemui"});
    proc.waitFor();
}

private void showStatusBar() throws IOException, InterruptedException {
    Process proc = Runtime.getRuntime().exec(new String[]{"am","startservice","-n","com.android.systemui/.SystemUIService"});
    proc.waitFor();
}

因此，如果我点击我的按钮，方法被调用我可以看到发生了什么，因为应用程序正在等待几秒钟。我也调查了LockCat，发现事情正在发生。

显示：http://pastebin.com/CidTRSTi隐藏：http://pastebin.com/iPS6Kgbp

Answer 1

您是否在清单中设置了全屏主题？

android:theme="@android:style/Theme.NoTitleBar.Fullscreen"

如果没有这个，我认为你不能全屏。

我将使用以下内容添加和删除全屏标志：

// Hide status bar
getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
// Show status bar
getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);

Answer 2

对于某些人，通过清除FLAG_FULLSCREEN显示状态栏可能不起作用，

这是适用于我的解决方案，（Documentation）（Flag Reference）

隐藏状态栏

// Hide Status Bar
if (Build.VERSION.SDK_INT < 16) {
            getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
                    WindowManager.LayoutParams.FLAG_FULLSCREEN);
}
else {
   View decorView = getWindow().getDecorView();
  // Hide Status Bar.
   int uiOptions = View.SYSTEM_UI_FLAG_FULLSCREEN;
   decorView.setSystemUiVisibility(uiOptions);
}

显示状态栏

   if (Build.VERSION.SDK_INT < 16) {
              getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
    }
    else {
       View decorView = getWindow().getDecorView();
      // Show Status Bar.
       int uiOptions = View.SYSTEM_UI_FLAG_VISIBLE;
       decorView.setSystemUiVisibility(uiOptions);
    }

Answer 3

对于Kotlin用户

显示

activity?.window?.addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN)

隐藏

activity?.window?.clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN)

Answer 4

在kolin用于kolin的隐藏状态栏中的kolin无需在行尾使用分号（;）

window.addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN)

在android中使用java语言进行隐藏状态栏

getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);

Answer 5

参考 - https://developer.android.com/training/system-ui/immersive.html

// 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);
}

Answer 6

 @Override
 protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    //hide status bar
    requestWindowFeature( Window.FEATURE_NO_TITLE );
    getWindow().setFlags( WindowManager.LayoutParams.FLAG_FULLSCREEN,
            WindowManager.LayoutParams.FLAG_FULLSCREEN );


    setContentView(R.layout.activity_main);
}

Answer 7

fun Activity.setStatusBarVisibility(isVisible: Boolean) {
    //see details https://developer.android.com/training/system-ui/immersive
    if (isVisible) {
        window.decorView.systemUiVisibility = (View.SYSTEM_UI_FLAG_LAYOUT_STABLE
                or View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN)
        window.decorView.systemUiVisibility = (View.SYSTEM_UI_FLAG_LAYOUT_STABLE
                or View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN)
    } else {
        window.decorView.systemUiVisibility = (View.SYSTEM_UI_FLAG_LAYOUT_STABLE
                or View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
                or View.SYSTEM_UI_FLAG_FULLSCREEN)
    }
}

Answer 8

使用此方法，使用SYSTEM_UI_FLAG_IMMERSIVE_STICKY全屏返回，只需轻轻一按，无需任何实现。只需复制下面的方法，并在活动中将其调用到您想要的位置。更多细节here

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