How to Hide System Navigation Bar in Tablets?

At my Tablet, it has following bar to control back, home etc. (I don't know the correct name, status bar? control bar? Action bar? or other)

In program, it use following method to have a full screen.

requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
requestWindowFeature(Window.PROGRESS_INDETERMINATE_OFF);

But I don't know why the bar still in here. Because of it, I can't have the correct screen size.

Who can tell me how to remove it?

Solution 1:

There seems to be a UNDOCUMENTED flag for this:

yourGreatView.setSystemUiVisibility(8);

• no black footer ("hidden" system bar)
• resizes view if keyboard shows up (no overlapped inputs)

Verified on Android 4.1.2 (API 16)
Verified on Android 4.1.1 (API 16)
Verified not working on Android 4.0.4 (API 15)

(all tablets)

Solution 2:

In Tablets running Android 4+, it is not possible to hide the System / Navigation Bar.

From documentation (Controls for system UI visibility section) :

The SYSTEM_UI_FLAG_HIDE_NAVIGATION is a new flag that requests the navigation bar hide completely. Be aware that this works only for the navigation bar used by some handsets (it does not hide the system bar on tablets).

However, you could try to dim the system bar as done sometimes during gaming and video playback.

The SYSTEM_UI_FLAG_LOW_PROFILE flag replaces the STATUS_BAR_HIDDEN flag. When set, this flag enables “low profile" mode for the system bar or navigation bar. Navigation buttons dim and other elements in the system bar also hide. Enabling this is useful for creating more immersive games without distraction for the system navigation buttons.

Solution 3:

In Android 4.4 and above you can completely hide the navigation bar and have it remain hidden using a combination of fullscreen and immersion:

@Override
protected void onResume() {
    super.onResume();

    View decorView = getWindow().getDecorView();
    decorView.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
            | View.SYSTEM_UI_FLAG_FULLSCREEN
            | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);
}

Solution 4:

public class Utils {

public static void hideNavigations(Activity context) {
    View decorView = context.getWindow().getDecorView();
    decorView.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
            | View.SYSTEM_UI_FLAG_FULLSCREEN
            | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);
}

}

In your Activity:

@Override
protected void onResume() {
    super.onResume();
    Utils.hideNavigations(this);
}