How can I deactivate a blue scanner line?

[AC Question]

There is a blue scanner line going up and down that doesn't let me click anything (not even the power button) and I want to deactivate it. How do I do this if I can't click anything.

 

[B. Diddy]

Welcome to Android Central! Which phone? Any way you can show us a screenshot or a video of what's going on? http://forums.androidcentral.com/am...ide-how-post-screenshots-android-central.html