Automatically lock screen after a friend watches a video

[PixxiGirl]

Im looking for a screen lock that will allow a friend to watch a particular video i open for them but have the screen lock itself immediately after the video ends.. so that they cannot go snooping through my phone if i don't get it back off them straight away. ..
Cheers

 

[ManiacJoe]

Check your phone's settings to see if it supports the feature "screen pinning".