#api21

What is Toolbar? Toolbar is a complete replacement to Android ActionBar. It provides greater control to customize its appearance unlike old ActionsBar. Using Toolbar, application developer can now, show multiple toolbars on the screen, spanning only part of the width, etc.Toolbar is a view group which can be placed anywhere in your activity. You can alter its size, color and position. You can make it behave like an action bar by adding a logo, labels, and navigation items.