Android Java Aktionsleiste entfernen
ActionBar actionBar=getSupportActionBar();
actionBar.hide();
Blue Booby
ActionBar actionBar=getSupportActionBar();
actionBar.hide();// In your Styles.xml file, change:
parent="Theme.AppCompat.Light.DarkActionBar"
// to:
parent="Theme.AppCompat.Light.NoActionBar"// kotlin
// MainActivity.kt file
supportActionBar?.hide()getSupportActionBar().hide();