How to force right to left (RTL) layouts on Android
To force right-to-left layouts on your Android device you need to open Settings, and access the Developer options menu (if developer options aren’t enabled, here’s how to do it). Once you’ve accessed the menu, scroll down to find the “Force RTL layout direction” tab. Tap on it to activate the option, and you’re done. All system menus and Google apps will reflect the change: phonebook, messaging, Google Play, Gmail, notifications area, and so on. Switching back to left-to-right layouts is just as easy, and is obviously done by taping again on the “Force RTL layout direction” tab.
As you can see below, our quick tutorial was done using stock Android Lollipop (5.0.1), but you should be able to force RTL layouts on any device running Android 4.2 or later.