Answered by : blue-booby-h5rls5a3nstv

 ActionBar actionBar=getSupportActionBar(); actionBar.hide();

Source : https://stackoverflow.com/questions/19545370/android-how-to-hide-actionbar-on-certain-activities | Last Update : Tue, 29 Sep 20

Answered by : bad-booby-v6bq3pml4njr

getSupportActionBar().hide();

Source : | Last Update : Tue, 27 Apr 21

Answered by : red-team

<activity android:name=".Activity" android:label="@string/app_name" android:theme="@android:style/Theme.NoTitleBar"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter>
</activity>

Source : https://stackoverflow.com/questions/19545370/android-how-to-hide-actionbar-on-certain-activities | Last Update : Sat, 12 Feb 22