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

I'm using a support widget Toolbar v7. So, in order to be able to delete or hide the Title we need to write this.

Toolbar myToolbar = (Toolbar) findViewById(R.id.my_toolbar);
setSupportActionBar(myToolbar);

//Remove¡ing title bar
getSupportActionBar().setDisplayShowTitleEnabled(false);