Question

This is how I set the brightness programmatically, but if I lock and then unlock the iPhone, the brightness level will be reset to the original:

GSEventSetBacklightLevel(BrightnessSlider.value);
[[UIApplication sharedApplication] setIdleTimerDisabled:YES];

So I would like to ask you, how to set the brightness, but also have its new value retained across screen locks and unlocks.

Answer 1

On iOS 5, you can use the brightness property of UIScreen:

[UIScreen mainScreen].brightness = slider.value;