We are using mobile phone when we want to switch off the screen, we press the power button. If we always use the power button to switch off screen than after some time it will create problem maybe it will out of order. I have a solution for screen off and lock. We use screen off and lock application.
Screen off and lock apk is a user friendly interface it is install at android operation system. We install the Screen off and lock that you lock or switch off your android or smart device by tapping a virtual Icon button. It performed same functionalities what your smart device power button should do. I it is a very simple application you can use when your power button is out of order.
Android 2.2 or higher version
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