Showing and Hiding MPMediaPlayerController instance

MediaController.m

-(void)showMediaPicker {
  if(self.mediaPicker == nil) {
    self.mediaPicker = [[MPMediaPickerController alloc] initWithMediaTypes:MPMediaTypeAnyAudio];
    
    [self.mediaPicker setDelegate:self];
    [self.mediaPicker setAllowsPickingMultipleItems:NO];
    [self.mediaPicker setShowsCloudItems:NO];
    self.mediaPicker.prompt = @"Select song";
  }
  
  AppDelegate *delegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];
  [delegate.rootViewController presentViewController:self.mediaPicker animated:YES completion:nil];
}


void hideMediaPicker() {
  AppDelegate *delegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];
  [delegate.rootViewController dismissViewControllerAnimated:YES completion:nil];
}