In AndroidManifest.xml della tua applicazione troverai l' android:theme ad esempio impostato su @style/AppTheme. Ora vai su styles.xml, trova il tag style, assicurati che il nome sia impostato su AppTheme uguale a manifest e set genitore su android:Th

In my app there is this title bar at the top where the overflow menu would be, but I don't need settings and only have one screen. When I change the theme like described in many other questions I g...

Some other things in Android, like the Android Design Support Library, require you to use appcompat-v7. On the other hand, it has many more bugs than does the native implementation. It also forces a bit of the Material Design aesthetic on you -- your acti