Question

我有一个基于导航的模板，我们在其中获取默认文件appdelegate.h，.m文件和rootviewcontroller.h和.m文件。现在我已经在项目中要求rootviewcontroller仅在应用程序安装在设备中时首次显示。在rootviewcontroller我有按钮o点击事件，我添加新视图作为子视图。在新视图中，我有一个按钮，可以进一步查看新视图。要进行新视图，我使用[self.navigationcontroller pushviewcontroller：new_view1 animated：YES]但这不起作用。意味着不推视。我怎么修理它？

在appdelegate文件中，我使用此代码进行didfinish启动： -

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

  }

并在按钮上单击rootviewcontroller我使用此代码： -

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

}

结束主视图的按钮clikc我使用此代码： -

 -(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 animated：YES]无效。如何解决？

Answer 1

试试这个，它会起作用

-(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];

    }

导航控制器不工作

1 个答案: