Allows an application to open windows using the type TYPE_SYSTEM_ALERT, shown on top of all other applications. This permission allows an app to show a "popup" window above all other apps, even if the app is not in the foreground. A malicious developer/advertiser could use it to show very obnoxious advertising. Almost no apps should require this permission unless they are part of the Android operating system. An example of a system alert would be the alert you are shown when your phone or tablet is out of battery and is about to shut down.

Using hot 6 x to explain further using the gallery

when you enter your gallery

choosing any video of your choice to play. Then while the video is playing. You can activate the draw over apps by clicking on the button meant for it on the screen..


And Boom!!!!!! you have just done that and it will be displaying on the screen while you do other things...

For more check http://www.infinix.club/ng/forum/626/1008616

To be superior to other apps.
Like to show notifications even when you lunch other app.
Eg your messenger, Facebook and WhatsApp is drawing over other apps

Rickyzagy:
To be superior to other apps.
Like to show notifications even when you lunch other app.
Eg your messenger, Facebook and WhatsApp is drawing over other apps

you must read minds bro