Android Studio making this blue line at the screen's top disappear

Question

I'm sorry for the unclear title , it's just that I don't the name of this thing. Anyway , here is a picture of the main screen of the app:

I want to remove the blue bar/title/line at the top (where it shows the time and battery..) If I can't remove it than atleast modify it by changing it color to black of something that suits better the background of the layout. Thank you, Noam

You may try changing the theme – Nongthonbam Tonthoi Jun 04 '16 at 09:35 — Nongthonbam Tonthoi, Jun 04 '16 at 09:35

score 1 · Answer 1 · edited Mar 02 '18 at 12:10

Yes, you can hide the status bar programmatically. Here are the steps for Android 4.1 and higher:

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();

For more detail (and lower Android versions) see: https://developer.android.com/training/system-ui/status.html

score 0 · Accepted Answer · edited May 23 '17 at 12:34

The blue bar at the top is called "status bar". You can control it's colour by setting android:colorPrimaryDark (or colorPrimaryDark if you're using an AppCompat theme).

If you started your project from an Android Studio template then you should have a styles.xml file with AppTheme defined. One of the lines inside should look like this:

<item name="colorPrimaryDark">@color/primaryDark</item>

You can either change the value directly here to something like @android:color/black or go into colors.xml where primaryDark is defined and change it to black there.

If you want to hide the status bar completely, see Lino's answer.

Thank you all for your answers. I eventually decided to simply change the color so I accept Marcin answer. — Noam, Jun 04 '16 at 15:07

score 0 · Answer 3 · answered Jun 04 '16 at 10:32

That blue line is called StatusBar.

There are two ways to do it

if you want to do it programatically:

public class MainActivity extends Activity {
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        requestWindowFeature(Window.FEATURE_NO_TITLE);
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
            WindowManager.LayoutParams.FLAG_FULLSCREEN);
        setContentView(R.layout.main_activity);
    }
}

Or else in your AndroidManifest.xml file:

<activity android:name=".MainActivity"
    android:label="@string/app_name"
    android:theme="@android:style/Theme.NoTitleBar.Fullscreen"/>

score 0 · Answer 4 · edited Mar 02 '18 at 12:43

0

Using AppCompatActivity in 3.0.1 solved the issue by adding in manifest:

application android:theme="@style/AppTheme.NoActionBar"

edited Mar 02 '18 at 12:43

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answered Mar 02 '18 at 11:34

Android Studio making this blue line at the screen's top disappear

4 Answers4