侧面菜单视图没有显示,AppDelegate类中缺少什么代码？

Question

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我想做的是,

案例1:如果用户未登录应用程序,则打开应用程序登录视图后将打开,在提供用户名和密码后,它将导航到主页.

案例2:如果用户已经登录,那么在启动应用程序后它将成为主页.

我写了代码来存档这个,

在登录页面中,登录按钮的代码

- (IBAction)loginButton:(id)sender {

    [self->userdefaults setBool:YES forKey:@"loginSuccess"];
    [userdefaults synchronize];

    HomeViewController *home=[self.storyboard instantiateViewControllerWithIdentifier:@"homeId"];

    [self.navigationController pushViewController:home animated:YES];

}

我正在存储一个值NSUserDefaults,在重新启动或打开应用程序后,在AppDelegate课程中我正在检查NSUserDefaults具有该值的条件,如果是,那么它将显示直接主页,如果没有则它将登录页面.

检查下面的代码,这是在AppDelegate课堂上写的,

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    // Override point for customization after application launch.

    userdefaults=[NSUserDefaults standardUserDefaults];

    mainStoryboard = [UIStoryboard storyboardWithName:@"Main" bundle: nil];


    if ([[NSUserDefaults standardUserDefaults] boolForKey:@"loginSuccess"]) {
        NSLog(@"Login Done!!!");

        HomeViewController *homeVC=[mainStoryboard instantiateViewControllerWithIdentifier:@"homeId"];

        SampleNavigationController *navigation = [[SampleNavigationController alloc] initWithRootViewController:homeVC];

       // SWRevealViewController * vc= [[SWRevealViewController alloc]init];

      // ExpandableTableViewController *sidemenu = (ExpandableTableViewController*)[mainStoryboard instantiateViewControllerWithIdentifier:@"sideMenu"];

        self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
        self.window.rootViewController = navigation;
        [self.window makeKeyAndVisible];

    }else
    {

        LoginViewController *loginVC=[mainStoryboard instantiateViewControllerWithIdentifier:@"LoginId"];

        self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
        self.window.rootViewController = loginVC;
        [self.window makeKeyAndVisible];

    }

    return YES;
}

在主页中,单击左侧导航按钮后,侧面菜单视图未打开/显示.

AppDelegate课堂上缺少什么代码？

这是完整的源代码

Answer 1

侧面菜单视图未打开/显示,因为您没有初始化SWRevealViewController而rootViewController不是aSWRevealViewController

工作代码.

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    // Override point for customization after application launch.

    userdefaults=[NSUserDefaults standardUserDefaults];

    mainStoryboard = [UIStoryboard storyboardWithName:@"Main" bundle: nil];


    if ([[NSUserDefaults standardUserDefaults] boolForKey:@"loginSuccess"]) {
        NSLog(@"Login Done!!!");

        HomeViewController *homeVC=[mainStoryboard instantiateViewControllerWithIdentifier:@"homeId"];
        SampleNavigationController *navigation = [[SampleNavigationController alloc] initWithRootViewController:homeVC];

        ExpandableTableViewController *sidemenu = (ExpandableTableViewController*)[mainStoryboard instantiateViewControllerWithIdentifier:@"sideMenu"];

        // Initialize SWRevealViewController and set it as |rootViewController|
        SWRevealViewController * vc= [[SWRevealViewController alloc]initWithRearViewController:sidemenu frontViewController:navigation];

        self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
        self.window.rootViewController = vc;
        [self.window makeKeyAndVisible];

    }else
    {

        LoginViewController *loginVC=[mainStoryboard instantiateViewControllerWithIdentifier:@"LoginId"];
        UINavigationController* navLogin = [[UINavigationController alloc] initWithRootViewController:loginVC];

        self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
        // Using UINavigationController here because you use
        // pushViewController:animated: method in loginButton:
        self.window.rootViewController = navLogin;
        [self.window makeKeyAndVisible];

    }

    return YES;
}

您需要loginButton:稍微更改方法以使其在第一时间起作用.

- (IBAction)loginButton:(id)sender {
    [self->userdefaults setBool:YES forKey:@"loginSuccess"];
    [userdefaults synchronize];

    HomeViewController *home=[self.storyboard instantiateViewControllerWithIdentifier:@"homeId"];

    SampleNavigationController *navigation = [[SampleNavigationController alloc] initWithRootViewController:home];

    ExpandableTableViewController *sidemenu = (ExpandableTableViewController*)[self.storyboard instantiateViewControllerWithIdentifier:@"sideMenu"];
    SWRevealViewController * vc= [[SWRevealViewController alloc]initWithRearViewController:sidemenu frontViewController:navigation];

    [self presentViewController:vc animated:YES completion:nil];
}