If we want to remove the ActionBar only from specific activities, we can create a child theme with the AppTheme as it’s parent, set windowActionBar to false and windowNoTitle to true and then apply this theme on an activity level by using the android:th

You hide action bar by with different ways. 1.action bar hidden through the manifest xml file (non Java Programming), then the easy way is to add the following attribute in Activity tag:

How I can remove Action Bar on specific activity not for all application, for example I have Sign Up activity and for this activity I want to remove Action Bar