How can I hide the Navigation bar from android

Question

How can I hide the Navigation bar from android? I can hide the Title Bar from the layout. But when I run the application in device I see the Navigation bar still. Is this possible to hide the Navigation bar?

Answer 1

Try this out

View aView = getWindow().getDecorView();
aView.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);

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Answer 2

Try the code below in your activity:

View decorView = getWindow().getDecorView();
int uiOptions = View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
              | View.SYSTEM_UI_FLAG_FULLSCREEN;
decorView.setSystemUiVisibility(uiOptions);

See: https://developer.android.com/training/system-ui/navigation.html

Answer 3

You can use it

@Override

@SuppressLint("NewApi") protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState);

currentApiVersion = android.os.Build.VERSION.SDK_INT;

final int flags = 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;

// This work only for android 4.4+
if(currentApiVersion >= Build.VERSION_CODES.KITKAT)
{

    getWindow().getDecorView().setSystemUiVisibility(flags);

    // Code below is to handle presses of Volume up or Volume down.
    // Without this, after pressing volume buttons, the navigation bar will
    // show up and won't hide
    final View decorView = getWindow().getDecorView();
    decorView
        .setOnSystemUiVisibilityChangeListener(new View.OnSystemUiVisibilityChangeListener()
        {

            @Override
            public void onSystemUiVisibilityChange(int visibility)
            {
                if((visibility & View.SYSTEM_UI_FLAG_FULLSCREEN) == 0)
                {
                    decorView.setSystemUiVisibility(flags);
                }
            }
        });
}



@SuppressLint("NewApi")
@Override
public void onWindowFocusChanged(boolean hasFocus)
{
super.onWindowFocusChanged(hasFocus);
if(currentApiVersion >= Build.VERSION_CODES.KITKAT && hasFocus)
{
    getWindow().getDecorView().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);
}

}