0

NavigationViewController クラスがあり、viewDidloadこのようなメソッドがあります。しかし、バーボタンには手がかりがありませんか?

MapViewController *p=[[MapViewController alloc]initWithNibName:self.nibName bundle:[NSBundle mainBundle]];
    UIBarButtonItem *rightButton = [[UIBarButtonItem alloc]
                                    initWithTitle:@"Code"
                                    style:UIBarButtonItemStylePlain
                                    target:self
                                    action:@selector(showDocco:)];
    [[self navigationController] setNavigationBarHidden:NO animated:NO];
     self.navigationItem.rightBarButtonItem = rightButton;

    self.modalPresentationStyle=UIModalPresentationFormSheet;
    [self pushViewController:p animated:YES];
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