Ask permission to access Camera Roll

Question

I have a settings view where the user can choose switch on or off the feature \'Export to Camera Roll\'

When the user switches it on for the first time (and

Answer 1

#import 

//////

ALAuthorizationStatus status = [ALAssetsLibrary authorizationStatus];
    switch (status) {
        case ALAuthorizationStatusRestricted:
        {
            //Tell user access to the photos are restricted
        }

            break;
        case ALAuthorizationStatusDenied:
        {
            // Tell user access has previously been denied
        }

            break;

        case ALAuthorizationStatusNotDetermined:
        case ALAuthorizationStatusAuthorized:

            // Try to show image picker
            myPicker = [[UIImagePickerController alloc] init];
            myPicker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
            myPicker.delegate = self;
            [self presentViewController: myPicker animated:YES completion:NULL];
            break;


        default:
            break;
    }