Keep display on when the proximity sensor is covered

Question

I want to intercept the proximity sensor without turning off the display.

I know by the documentation that I have two Bool variables:

proximityMonitoring         


        

Answer 1

Apple’s documentation notes that “Not all iPhone OS devices have proximity sensors.” To determine if the device your app is running supports proximity monitoring, set the proximityMonitoringEnabled property to YES, then check its value:

UIDevice *device = [UIDevice currentDevice];
[device setProximityMonitoringEnabled:YES];

if (device.proximityMonitoringEnabled == YES) {
    [[NSNotificationCenter defaultCenter] addObserver:self 
                                             selector:@selector(proximityChanged:) 
                                                 name:@"UIDeviceProximityStateDidChangeNotification"
                                               object:device];
}

- (void) proximityChanged:(NSNotification *)notification {
    UIDevice *device = [notification object];
    NSLog(@"In proximity: %i", device.proximityState);
}

Source: http://www.whatsoniphone.com/blog/new-in-iphone-30-tutorial-series-part-4-proximity-detection/

Will help to detect current state of sensor.

Public API that allows screen dim:

[UIScreen mainScreen].wantsSoftwareDimming = YES;
[UIScreen mainScreen].brightness = $your_brightness_value;

Found here: Change to wantsSoftwareDimming in iOS 6?