ios - 如何将登录添加到我的 iOS PDF 阅读器应用程序？

Question

所以我正在尝试向我现有的应用程序添加登录信息。我的应用程序有两个 Storyboard，一个用于 iPhone，另一个用于 iPad。我添加了一个设置为 rootViewController 的登录 View ，但我似乎无法正确加载我的 UITabBarController。通常应该加载 PDF。我将登录名添加到 UITabBarController，但没有加载任何内容，它只是一个空的 Storyboard 。我没有正确加载它(标签栏和文档)或其他东西。我是菜鸟，所有帮助都表示赞赏。

应用委托(delegate)文件:

@interface AppDelegate () <UITabBarControllerDelegate>
@property (nonatomic, strong) PDFDocumentStore *documentStore;
@property (nonatomic, strong) DocumentListViewController *documentsViewController;
@property (nonatomic, strong) DocumentListViewController *recentViewController;
@property (nonatomic, assign) BOOL launchingWithURL;
@property (nonatomic, assign) BOOL addSkipBackupAttributeToItemAtURL;

@end

@implementation AppDelegate

- (BOOL)application:(UIApplication *)application willFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{

    [self migrateIfNeeded];

   UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"MainStoryboard_iPhone" bundle:nil];
    UIViewController *rootViewController = [storyboard instantiateViewControllerWithIdentifier:@"Login"];
   [[UIApplication sharedApplication].keyWindow setRootViewController:rootViewController];

    self.documentStore = PDFDocumentStore.new;
    [self.documentStore.rootFolder load];


    UITabBarController *tabBar = (UITabBarController *)[[self window] rootViewController];
   tabBar.delegate = self;

   self.documentsViewController = (DocumentListViewController *)[tabBar.viewControllers[0] topViewController];
   FolderDocumentListViewModel *folderModel =
           [[FolderDocumentListViewModel alloc] initWithFolder:self.documentStore.rootFolder];
  self.documentsViewController.viewModel = folderModel;
   [self.documentsViewController view];

   self.recentViewController = (DocumentListViewController *)[tabBar.viewControllers[1] topViewController];
    RecentDocumentListViewModel *recentModel =
            [[RecentDocumentListViewModel alloc] initWithDocumentList:self.documentStore.documentList];
    self.recentViewController.viewModel = recentModel;

   NSString *pdf = @"2016 Product Handbook";
    NSString *toPath = [[[NSFileManager grt_documentsPath]
                         stringByAppendingPathComponent:pdf]
                        stringByAppendingPathExtension:@"pdf"];
    [self addSkipBackupAttributeToItemAtURL:[NSURL fileURLWithPath:toPath]];
    NSURL *URL = [launchOptions objectForKey:UIApplicationLaunchOptionsURLKey];
    if (URL) {
      self.launchingWithURL = YES;
    }

    return YES;
}

Answer 1

在“AppDelegate.h”文件中创建一个 UITabBarController。

@property (strong, nonatomic) UITabBarController *tabBarController;
-(void)userDidLoginSuccessfully;

然后在AppDelegate.h文件中声明一个公共(public)函数。 (在这种情况下，可以说 userDidLoginSuccessively 是我的函数)。在您的 AppDelegate.m 文件中编写此函数。

-(void)userDidLoginSuccessfully{
    UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"MainStoryboard_iPhone" bundle:nil];
    self.tabBarController = [[UITabBarController alloc]init]
    self.tabBarController = [storyboard instantiateViewControllerWithIdentifier:@"MyTabBarController"];
    [self.window setRootViewController:self.TabBarController];
}

然后在 LoginViewController 中检查 if-else block 中登录是否成功，只需编写这些行。

AppDelegate *appDelegate = [UIApplication sharedApplication].delegate;
[appDelegate userDidLoginSuccessfully];