How to hide the title bar for an Activity in XML with existing custom theme

Question

I want to hide the titlebar for some of my activities. The problem is that I applied a style to all my activities, therefore I can\'t simply set the theme to @android:

Answer 1

If you use this.requestWindowFeature(Window.FEATURE_NO_TITLE) user will still be able to see the title bar just for a moment during launch animation when activity starts through onCreate. If you use @android:style/Theme.Black.NoTitleBar as shown below then title bar won't be shown during launch animation.

above example will obviously override your existing application theme, if you have existing theme then add true to it.