How I can remove the "Status and notification bar"?

Question

I plan to program an app with Android Studio. But this bar bothers me:

The status and notification bar

Thank you for your prompt reply. I don't have any code on this topic yet because I haven't found anything — Luca, Jan 16 '20 at 15:46
In the picture you can see the bar I mean. So the bar with the time and battery level — Luca, Jan 16 '20 at 15:57
Does this answer your question? [Android Studio - Action Bar remove](https://stackoverflow.com/questions/24742732/android-studio-action-bar-remove) — Pratap Sharma, Jan 16 '20 at 16:00
parent="Theme.AppCompat.Light.NoActionBar" Change to this in your styles.xml — Pratap Sharma, Jan 16 '20 at 16:23
I put it in my code, but it's still there. I don't know if the bar I mean is the actionbar — Luca, Jan 16 '20 at 16:32
Share your code. Without code its difficult to help you out. — Pratap Sharma, Jan 16 '20 at 16:34
The code is too long to insert here. And I don't know if we mean the same thing. Did you look at the picture? — Luca, Jan 16 '20 at 16:46

score 1 · Answer 1 · answered Jan 16 '20 at 16:53

If you are looking to just hide the status bar, it should be just adding this Java code to your activity's onCreate method:

View decorView = getWindow().getDecorView();
// Hide the status bar.
int uiOptions = View.SYSTEM_UI_FLAG_FULLSCREEN;
decorView.setSystemUiVisibility(uiOptions);
// Remember that you should never show the action bar if the
// status bar is hidden, so hide that too if necessary.
ActionBar actionBar = getActionBar();
actionBar.hide();

You can find the Kotlin code here: https://developer.android.com/training/system-ui/status#41

If you are looking to make the app fullscreen with no Android UI you can use this Java code:

@Override
public void onWindowFocusChanged(boolean hasFocus) {
    super.onWindowFocusChanged(hasFocus);
    if (hasFocus) {
        hideSystemUI();
    }
}

private void hideSystemUI() {
    // Enables regular immersive mode.
    // For "lean back" mode, remove SYSTEM_UI_FLAG_IMMERSIVE.
    // Or for "sticky immersive," replace it with SYSTEM_UI_FLAG_IMMERSIVE_STICKY
    View decorView = getWindow().getDecorView();
    decorView.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_HIDE_NAVIGATION
            | View.SYSTEM_UI_FLAG_FULLSCREEN);
}

// Shows the system bars by removing all the flags
// except for the ones that make the content appear under the system bars.
private void showSystemUI() {
    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);
}

You can find the Kotlin code here: https://developer.android.com/training/system-ui/immersive#EnableFullscreen

All the code snippets are from the Android documentation and not my own.

Thank you! That's exactly what I was looking for! But unfortunately everything is black at this point. And as soon as I click on the status bar it is back — Luca, Jan 16 '20 at 17:15
Yes, the status bar will come back from hidden state if you tap or swipe on that side. I'm not sure there's a way around that. Also, what do you mean the screen is all black? — Stephen Emery, Jan 16 '20 at 17:55
I checked it again. The black one is apparently on my cell phone. Thanks! — Luca, Jan 16 '20 at 18:08

score 0 · Accepted Answer · answered Jan 16 '20 at 18:39

0

To remove status bar use this

getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
              WindowManager.LayoutParams.FLAG_FULLSCREEN);

how to use ..

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
              WindowManager.LayoutParams.FLAG_FULLSCREEN);
        setContentView(R.layout.activity_main);
    }
}

answered Jan 16 '20 at 18:39

Dreamer

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Thanks a lot! That solved all problems! – Luca Jan 17 '20 at 13:37
Glad that i could help you – Dreamer Jan 17 '20 at 14:07

How I can remove the "Status and notification bar"?

2 Answers2