导航控制器不工作

Question

我有一个基于导航的模板，其中我们获取默认文件appdelegate.h，.m文件和rootviewcontroller.h and.m文件。现在我已经在项目中要求rootviewcontroller只会在应用程序安装到设备中时才显示。并在rootviewcontroller我有按钮o点击事件，我添加新视图作为子视图。而在新的观点上，我有一个按钮，进一步进行新的观点。要继续新视图，我使用[self.navigationcontroller pushviewcontroller：new_view1 animated：YES]，但这不起作用。意味着不推动视图。我如何解决它？

在的appdelegate文件我用didfinish推出的这款代码： -

-(BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions{self.window.rootViewController = self.navigationController; 
    [self.window makeKeyAndVisible]; 
return YES; 

    } 

和RootViewController的按钮点击我用这个代码： -

- (void)parser{ 
    main_view_obj=[[Home_Screen_viewController alloc] initWithNibName:@"Home_Screen_viewController" bundle:nil]; 
    [self.view addSubview:main_view_obj.view]; 

} 

端上MAINVIEW我使用的按钮clikc此代码： -

-(IBAction)accounts{ 
    [appDelegate startProgressBar:@"while loading data..."]; 
    account_view =[[Account_login_viewController alloc] initWithNibName:@"Account_login_viewController" bundle:Nil]; 
    [self.navigationController pushViewController:account_view animated:YES ]; 
    self.navigationItem.backBarButtonItem = [[[UIBarButtonItem alloc] initWithTitle:@"Home" style:UIBarButtonItemStyleBordered target:nil action:nil] autorelease]; 
    [appDelegate endProgressBar]; 

} 

现在的问题是，[self.navigationController pushViewController：account _view动画：YES]不起作用。如何解决它？

Answer 1

试试这个，它会工作

-(IBAction)accounts{ 
        [appDelegate startProgressBar:@"while loading data..."]; 
        account_view =[[Account_login_viewController alloc] initWithNibName:@"Account_login_viewController" bundle:Nil]; 
        [appDelegate.navigationController pushViewController:account_view animated:YES ]; 
        appDelegate.navigationItem.backBarButtonItem = [[[UIBarButtonItem alloc] initWithTitle:@"Home" style:UIBarButtonItemStyleBordered target:nil action:nil] autorelease]; 
        [appDelegate endProgressBar]; 

    }