Toolbar Toolbar is used in our application as an app bar providing useful information to the user. From API level 11 ActionBar had been used as default app bar. But with newer versions and newer features ActionBar looks and behaves differently on devices depending on the version of the android it is using . So Toolbar is introduced in Android Support library to provide consistent look and behavior to our application for a wide range of devices . Toolbar is supported from API level 7 . In our application we should use android.support.v7.widget.Toolbar This is a simple application using Toolbar. Screenshots of the application are the following . Toolbar contains Navigation icon, Title, SubTitle and 5 menu items, on clicking any menu item a Toast will show up with menu item name. You can download the full project from the following drive link https://drive....