Android phones prevent sleep

 

There are two ways to implement this function. One is to declare in the Manifest. xml file, and the other is to modify the flag of LayoutParams in the code. The details are as follows:

1. Use user-permission declaration in the Manifest. xml file. The Code is as follows:

<Uses-permission android: name = "android. permission. WAKE_LOCK"> <br/> </uses-permission> 

In this way, when installing the apk, the system will prompt the installer whether to allow the disable sleep function.

2. Use code in the program. The Code is as follows:

GetWindow (). setFlags (WindowManager. LayoutParams. FLAG_KEEP_SCREEN_ON, WindowManager. LayoutParams. FLAG_KEEP_SCREEN_ON ); 

Add this code before setContentView (R. layout. main ).

In this way, the installer is not prompted to disable sleep.