Navigation control bar offers the back button, home button and recents button along with an added button to move the navigation bar animation to the area of screen where you want it. You can also navigation bar changer root and navigation bar color changer. This bottom navigation bar to easily use it. The navigation bottom is back button for touch mobile and custom navigation bar - navbar customize. The home back button app is most popular app in play store. The home back button key is navbar animation most popular. The home button and back button lock of control navigation bar. This is simple control navigation bar and simple navigation control of navigation bar background. It use simple control defense is one type of touch control. This custom navigation bar is soft key of this application. We can also change the arrow keys of bottom bar. This is all the controls of a navigation bar app. The custom navigation bar is use to disable soft key of quick navigation. The navigation app is bottom bar of your mobile
Back Button help you limit the use of physical keys
Back Button help you easily return to the previous screen or double-click to return to the Home screen.
It can simulate the system button like back button, home button and recent button. it can also let you pull down the notification bar quickly.
Main Features of Back Button :
 Ability to change color of background and icon
 Ability to change icon of Back Button easily with many pretty theme
 Easily display functions in the notification bar: Home, Recents, Settings
 You can move the button to anywhere on screen
 Gesture Setting for Floating Button (One click, Double click and Long click)
 On off vibrate when click
 Change theme back button

Features:
- Add custom buttons to your navigation bar.
- Customizable navbar layout.
- Have choice to enable and disable BG color.
- You have the option to increase and decrease size/space of navigation bar button.
- Add space among emojis and size of emojis.
- also set gif in Navigation Bar.
- Tasker integration for contextual navbar.
- Easy to setup.
- Simple and nice way to use.
- No root or xposed required.

Note: In order to use it, please turn ON "Back Button" service from "setting -> Accessibility Option."
*Back button uses Accessibility Services.
Accessibility service is to use the functions of "Back button", "Home button", "Resents button" and "Notification bar", and it will not be used elsewhere.
Thank you for use Back Button. Download and rate 5 star for Back Button - Home, Recent ,Back Pro support to developer.