[items addObject:[RCTDevMenuItem buttonItemWithTitleBlock:^NSString *{
    return @"Change packager location";
  } handler:^{
    UIAlertController * alertController = [UIAlertController alertControllerWithTitle: @"Change packager location"
                                                                              message: @"Input packager IP and port"
                                                                       preferredStyle:UIAlertControllerStyleAlert];
    [alertController addTextFieldWithConfigurationHandler:^(UITextField *textField) {
      textField.placeholder = @"0.0.0.0";
      textField.clearButtonMode = UITextFieldViewModeWhileEditing;
      textField.borderStyle = UITextBorderStyleRoundedRect;
    }];
    [alertController addTextFieldWithConfigurationHandler:^(UITextField *textField) {
      textField.placeholder = @"8081";
      textField.clearButtonMode = UITextFieldViewModeWhileEditing;
      textField.borderStyle = UITextBorderStyleRoundedRect;
    }];
    [alertController addAction:[UIAlertAction actionWithTitle:@"OK" style:UIAlertActionStyleDefault handler:^(__unused UIAlertAction *action) {
      NSArray * textfields = alertController.textFields;
      UITextField * ip = textfields[0];
      UITextField * port = textfields[1];
      NSURLComponents *components = [NSURLComponents componentsWithURL:self->_bridge.bundleURL resolvingAgainstBaseURL:YES];
      NSNumberFormatter *formatter = [[NSNumberFormatter alloc] init];
      formatter.numberStyle = NSNumberFormatterDecimalStyle;
      NSNumber *portNumber = [formatter numberFromString:port.text];
      if (portNumber == nil) portNumber = [NSNumber numberWithInt: 8081];
      components.scheme = @"http";
      components.host = ip.text;
      components.port = portNumber;
      components.path = @"/index.bundle";
      components.query = @"platform=ios&dev=true&hot=true";
      self->_bridge.bundleURL = components.URL;
      [self->_bridge reload];
    }]];
    [RCTPresentedViewController() presentViewController:alertController animated:YES completion:NULL];
  }]];