title: Show videos only in UIImagePickerController
body: <p>I am using following code to present UIImagePickerController.For some particular scenario I want only videos.And using the following code.</p>
  
  <pre><code>UIImagePickerController *imagePickerController = [[UIImagePickerController alloc] init];
  imagePickerController.modalPresentationStyle = UIModalPresentationCurrentContext;
  imagePickerController.sourceType = sourceType;
  imagePickerController.delegate = self;
  imagePickerController.allowsEditing=NO;
  
  imagePickerController.mediaTypes=[[NSArray alloc] initWithObjects:(NSString *)kUTTypeMovie,nil];
  
  [self presentViewController:imagePickerController animated:YES completion:nil];
  </code></pre>
  
  <p>But it showing Camera Roll,My Photo Stream and Videos in a tableview.If I open any folder the contents are only videos.I want Only Videos how can I achieve this.Also the title Photos,I want to change that also toVideos.</p>