Screen overlay detected problem FIX on android

How to solve screen overlay detected problem on android marshmallow....

  Hii guys today i will tell you how to solve screen overlay detected problem on android phones step by step...

1) Firstly you need to press and hold the power button.

2) Then after, four option come on your phone's screen.

Ist option: -power off, 

2Nd option: -reboot or restart,

3Rd option: -screen capture or screenshot,

4Th option: -Airplane mode.

3) Now press and hold power off option.

4) Now your phone shows "Reboot to safe mode".

5) And also shows cancel and ok option.

6.)You need to click on    "ok"   option.

7) Now you had to wait till your phone will ON.

8) Now Go to Setting>Apps.

9) Now you had to choose that app which you want to give permission.

10) Now Press on "PERMISSION" Option.

11) And enable all options.

This process is really working.. I also use this method on my phone... This problem is commonly occurs in "marshmallow version" android phones.