How to know that application have camera access or not programmatically in iOS8

Question

My application uses the camera. In iOS8 they include a new privacy setting, Camera, where the user can manage use of camera rights for each application

Answer 1

Check AVAuthorizationStatus for camera availability and then handle cases accordingly

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){
  NSLog(@"Granted access");
} else {
  NSLog(@"Not granted access");
}
  }];
}