CoverLock - Pocket Screen Lock

Lock your phone automatically when you put the mobile into your pocket. If you have a flip/flap cover, lock your mobile by closing flip/flap cover. Or else simply wave your hand over the proximity sensor of your phone. No need to press the lock button any more.
Also you can specify to disable the app while a call is in progress. Time can be set for which the app will remain disabled once you unlock the screen. This avoids unwanted locking.