UIImagePicker briefly disappears and then returns again. It seems like viewDidAppear is being called again?

Every time the UIImagePicker is dismissed via method [self dismissViewControllerAnimated: YES completion: nil]; the image picker reappears instantly barely showing the tableViewController underneath the stack. I believe it has something to do with the viewWillAppear being called again after the view controller is dismissed but I don't know where to put the imagePicker then because viewDidLoad will not create the camera every time it is needed.. please help!

Here are the viewWillAppear and didFinishPickingMediaInfo methods:

• (void)viewWillAppear:(BOOL)animated { [super viewWillAppear:animated];

  self.imagePicker = [[UIImagePickerController alloc] init]; self.imagePicker.delegate = self; self.imagePicker.allowsEditing = NO; self.imagePicker.videoMaximumDuration = 10;

  if ([UIImagePickerController isSourceTypeAvailable: UIImagePickerControllerSourceTypeCamera]){ self.imagePicker.sourceType = UIImagePickerControllerSourceTypeCamera; }else { self.imagePicker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary; }

  self.imagePicker.mediaTypes = [UIImagePickerController availableMediaTypesForSourceType:self.imagePicker.sourceType];

  [self presentViewController:self.imagePicker animated:NO completion:nil];

}

//....

• (void) imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {

  NSString *mediaType = [info objectForKey:UIImagePickerControllerMediaType];

  if ([mediaType isEqualToString:(NSString *)kUTTypeImage]) {

  self.image = [info objectForKey:UIImagePickerControllerOriginalImage];
  
  if (self.imagePicker.sourceType == UIImagePickerControllerSourceTypeCamera){
  
      UIImageWriteToSavedPhotosAlbum(self.image, nil, nil, nil);
      }
  

  } else { NSURL *imagePickerURL = [info objectForKey:UIImagePickerControllerMediaURL]; self.videoFilePath = [imagePickerURL path];

  if(UIVideoAtPathIsCompatibleWithSavedPhotosAlbum(self.videoFilePath)){
  
  UISaveVideoAtPathToSavedPhotosAlbum(self.videoFilePath, nil, nil, nil);
  }
  

[self dismissViewControllerAnimated: YES completion: nil]; }
}