What are the different bars (status bar, action bar, navigation bar, tool bar etc.) available in android?

Issue

What are the different bars available in android and where are they located? Pics to support each type would be highly appreciated and helpful for beginners.

Solution

The status bar is where the clock, battery icon, notification icons, and the like reside. Most of the time, it is at the top of the screen. This is provided by the system; the app does not directly manipulate the contents of this bar.

The action bar (sometimes referred to as the app bar), if it exists for an activity, will be at the top of the activity's content area, typically directly underneath the status bar. Activities control whether there is an action bar and, if so, what it looks and works like.

The navigation or system bar is where the HOME, BACK, etc. buttons are. This is usually on the opposite side of the screen from the status bar, and therefore usually is at the bottom of the screen. This is provided by the system; the app does not directly manipulate the contents of this bar.

Answered By - CommonsWare