How to Hide System Navigation Bar in Tablets?

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一整个雨季
一整个雨季 2020-11-27 04:13

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 foll

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  • 2020-11-27 04:39

    Below code worked for me -

    You can write it in onCreate() or onResume( if needed)

    getWindow().getDecorView().setSystemUiVisibility( View.SYSTEM_UI_FLAG_IMMERSIVE
                                | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION);
    
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  • 2020-11-27 04:44

    As other people say use the command "pm disable com.android.systemui" in root mode, so the following code execute this command in your android app, just call the following method, your tablet needs to be rooted.

    private void hideNavigationBar(){
            try {
                Process process = Runtime.getRuntime().exec("su");
                DataOutputStream os = new DataOutputStream(process.getOutputStream());
                os.writeBytes("pm disable com.android.systemui\n");
                os.flush();
                os.writeBytes("exit\n");
                os.flush();
                process.waitFor();
                //////////////////////////////////////
            } catch (InterruptedException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    

    This code hide the navigation bar on the android system, to reappear system bar use "pm enable com.android.systemui" instead of "pm disable com.android.systemui" in the previous code.

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  • 2020-11-27 04:46

    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)

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  • 2020-11-27 04:55

    A very nuclear option is to just delete the SystemUI.apk from /system/app/. But warning this will remove it from the tablet completely. I'm doing this on a tablet i'm using for a front panel kiosk, then i set the tablet to boot into my app.

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  • 2020-11-27 04:57

    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.

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  • 2020-11-27 04:59

    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);
    }
    
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