Objective c 内部MFSideMenuController视图将显示方法不工作

我想检查nsuserdefault值是否可用，如果值可用，则应显示Logout，如果值为nill，则应在侧菜单中显示Login。我正在VIEWWILLEASER方法中执行此操作，但它不起作用，请有人对此进行澄清

-(void)viewWillAppear:(BOOL)animated
{
    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
    NSString *id1 = [defaults objectForKey:@"ID"];


    if (id1.length>0)
    {
        recipes = [NSArray arrayWithObjects:@"Account Details", **@"Logout",** @"Change Password", @"Contacts", @"Ham and Cheese Panini", nil];
    }

    else
    {
        recipes = [NSArray arrayWithObjects:@"Account Details", @"**Login**", @"Change Password", @"Contacts", @"Ham and Cheese Panini", nil];
    }


}

---

我已经这样做了，现在它正在工作

- (void)viewDidLoad {
    [super viewDidLoad];
{
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(loginlogout:) name:@"login" object:nil];

}

- (void)loginlogout:(NSNotification *) notification
{


    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
    NSString *id1 = [defaults objectForKey:@"ID"];


    if (id1.length>0)
    {
        recipes = [NSArray arrayWithObjects:@"Account Details", @"Logout", @"Change Password", @"Contacts", @"Ham and Cheese Panini", nil];
    }

    else
    {
        recipes = [NSArray arrayWithObjects:@"Account Details", @"Login", @"Change Password", @"Contacts", @"Ham and Cheese Panini", nil];
    }
    [tableview1 reloadData];
}

在otherpage（您要调用的任何页面）示例中调用此loginlogout方法 Loginviewcontroller.M

- (IBAction)Logout:(id)sender

{
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(loginlogout:) name:@"login" object:nil];

}

最后是德洛克

- (void) dealloc
{

    [[NSNotificationCenter defaultCenter] removeObserver:self name:@"login" object:nil];
}

---

假设MFSidemenu是一个用于显示菜单的抽屉式功能的pod。 MFSidemenu具有以下显示侧菜单的方法

[self.menuContainerViewController setMenuState:MFSideMenuStateLeftMenuOpen completion:^{}];

您可以在调用此方法之前或在完成块（以适合您的为准）中添加对NSUserDefaults的检查。 视图将不会在每次侧菜单打开时调用

它还有一个通知，您可以观察到在侧菜单打开时触发（即菜单将打开、菜单确实打开等）

---

仅当您显示MFSideMenuController时，而不是每次打开侧视图时，才会调用侧菜单的视图。您可以设置断点并进行调试以查找问题，您是得到空字符串id1还是根本不调用viewWillAppear？有这么多信息，很难弄清楚实际问题是什么

[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(menuStateEventOccurred:)
name:MFSideMenuStateNotificationEvent
object:nil];

- (void)menuStateEventOccurred:(NSNotification *)notification {
    MFSideMenuStateEvent event = [[[notification userInfo] objectForKey:@"eventType"] intValue];
    MFSideMenuContainerViewController *containerViewController = notification.object;
// Check whether menu opens here and then add your code.

}