已创建的标签栏和侧边菜单问题

Question

我创建了使用Sw以编程方式显示的标签栏和侧边菜单，但是在实现所有过程后，我无法查看侧面菜单，我的标签栏也消失了......我不知道如何分配他们请求帮助我

@implementation AppDelegate 
@synthesize window = _window; 
@synthesize viewController = _viewController; 

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { 
    // Override point for customization after application launch. 
    self.tabBarController =[[UITabBarController alloc]init]; 

    //Initialize View controller and speciality 
    UIViewController *viewcontroller1=[[HomeView alloc]init]; 
    UIViewController *viewcontroller2=[[Speciality alloc]init]; 
    UIViewController *viewcontroller3=[[Activity alloc]init]; 
    UIViewController *viewcontroller4 =[[Notification alloc]init]; 
    UIViewController *viewcontroller5 =[[Profile alloc]init]; 

    self.tabBarController.viewControllers=[NSArray arrayWithObjects:viewcontroller1,viewcontroller2,viewcontroller3,viewcontroller4,viewcontroller5, nil]; 
    self.window.rootViewController =self.tabBarController; 
    self.tabBarController.tabBar.barTintColor = [UIColor colorWithRed:0.376 green:0.729 blue:0.318 alpha:1.000]; 

    self.window.backgroundColor = [UIColor whiteColor]; 
    HomeView *frontViewController = [[HomeView alloc] init]; 
    RearViewController *rearViewController = [[RearViewController alloc] init]; 
    UINavigationController *frontNavigationController = [[UINavigationController alloc] initWithRootViewController:frontViewController]; 
    UINavigationController *rearNavigationController = [[UINavigationController alloc] initWithRootViewController:rearViewController]; 
    SWRevealViewController *mainRevealController = [[SWRevealViewController alloc]initWithRearViewController:rearNavigationController frontViewController:frontNavigationController]; 
    mainRevealController.delegate = self; 
    self.window.rootViewController = self.viewController; 
    [self.window makeKeyAndVisible]; 
    return YES; 
} 

Answer 1

您设置window.rootViewController两次。而且它似乎是第二次将它分配给nil，因为我看不到self.viewController的任何初始化/分配。