How to lock the screen on your iPhone
You can use lock the screen while using your iPhone i.e wacthing video og sharing it with a kid ;)
To enable, go to Settings > General > Accessibility > Guided Access. Then once you need the function, triple tap the home button, set a code that will allow you to unlock the screen, choose the screen area that should be locked and enjoy!
[Re-Titled by Moderator]
