'''
//设置窗口亮度大小 范围是0.1 -1.0
[[UIScreen mainScreen] setBrightness:0.5];
//设置屏幕常亮
[UIApplication sharedApplication].idleTimerDisabled = YES;
'''
'''
//设置窗口亮度大小 范围是0.1 -1.0
[[UIScreen mainScreen] setBrightness:0.5];
//设置屏幕常亮
[UIApplication sharedApplication].idleTimerDisabled = YES;
'''
本文标题：IOS屏幕常亮
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