Presenting camera permission dialog in iOS 8

Question

When my app tries to access the camera for the first time on iOS 8, the user is presented with a camera permission dialog, much like the microphone one for microphone access

Answer 1

I'm running into a similar issue, if the user has denied camera access when they are first prompted, pressing the button to take a snap shot results in a black screen in the camera mode.

However i want to detect that the user has declined access and prompt them it must be turned on but i can't find any functions to check the current user camera access, is there such a function?

EDIT: The following check will let you know in IOS 8 about camera access:

#import 

AVAuthorizationStatus status = [AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeVideo];

    if(status == AVAuthorizationStatusAuthorized) { // authorized

    }
    else if(status == AVAuthorizationStatusDenied){ // denied

    }
    else if(status == AVAuthorizationStatusRestricted){ // restricted


    }
    else if(status == AVAuthorizationStatusNotDetermined){ // not determined

        [AVCaptureDevice requestAccessForMediaType:AVMediaTypeVideo completionHandler:^(BOOL granted) {
            if(granted){ // Access has been granted ..do something

            } else { // Access denied ..do something

            }
        }];
    }

This information was found on the following question (How to know that application have camera access or not programmatically in iOS8):