在ABPeoplePickerNavigationController中添加barButtonItems在ios 7中

Question

嗨在我的iPhone應用程序中，我需要在ABPeoplePickerNavigationController中設置barButtonItems。在iOS 6工作正常：

-(void) manageContacts 
{ 
    peopleNavigationController = [[PeoplePickerNavigationController alloc] init]; 
    peopleNavigationController.peoplePickerDelegate = self; 
    [peopleNavigationController.navigationBar setBarStyle:UIBarStyleBlack]; 

    peopleNavigationController.delegate = self; 
    peopleNavigationController.topViewController.navigationItem.leftBarButtonItem = 
    [[UIBarButtonItem alloc] initWithTitle:NSLocalizedString(@"back",nil) 
            style:UIBarButtonItemStyleBordered 
            target:self 
            action:@selector(pressBack)]; 
    peopleNavigationController.topViewController.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAdd target:self action:@selector(addPerson)]; 

    [self.navigationController presentModalViewController:peopleNavigationController animated:YES]; 


} 

但在ios 7中有默認按鈕。我怎樣才能解決這個問題？

Answer 1

我想這是因爲你的navigationController的topViewController是零，你可能需要設置初始化的VC作爲RootViewController的你peopleNavigationController。