Objective-C:
// 设置屏幕常亮，默认是NO
[UIApplication sharedApplication].idleTimerDisabled = YES;
// 设置窗口亮度大小，范围是0.1 - 1.0
[UIScreen mainScreen] setBrightness: 0.5];
Swift:
UIApplication.shared.idleTimerDisabled = true
Objective-C:
// 设置屏幕常亮，默认是NO
[UIApplication sharedApplication].idleTimerDisabled = YES;
// 设置窗口亮度大小，范围是0.1 - 1.0
[UIScreen mainScreen] setBrightness: 0.5];
Swift:
UIApplication.shared.idleTimerDisabled = true
本文标题：iOS设置屏幕常亮
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