如何在App不运行(即完全被杀)的情况下，打开用户点击推送通知时的特定控制器Objective-C

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    // 注册远程推送通知
    [self registerForRemoteNotifications];
    
    // 判断是否通过推送通知启动App
    NSDictionary *notificationInfo = launchOptions[UIApplicationLaunchOptionsRemoteNotificationKey];
    if (notificationInfo) {
        // 解析推送通知内容
        NSString *controllerName = notificationInfo[@"controller"];
        
        // 打开特定控制器
        if ([controllerName isEqualToString:@"ViewController1"]) {
            ViewController1 *viewController1 = [[ViewController1 alloc] init];
            UINavigationController *navigationController = (UINavigationController *)self.window.rootViewController;
            [navigationController pushViewController:viewController1 animated:YES];
        } else if ([controllerName isEqualToString:@"ViewController2"]) {
            ViewController2 *viewController2 = [[ViewController2 alloc] init];
            UINavigationController *navigationController = (UINavigationController *)self.window.rootViewController;
            [navigationController pushViewController:viewController2 animated:YES];
        }
    }
    
    return YES;
}

- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo fetchCompletionHandler:(void (^)(UIBackgroundFetchResult))completionHandler {
    // 解析推送通知内容
    NSString *controllerName = userInfo[@"controller"];
    
    // 打开特定控制器
    if ([controllerName isEqualToString:@"ViewController1"]) {
        ViewController1 *viewController1 = [[ViewController1 alloc] init];
        UINavigationController *navigationController = (UINavigationController *)self.window.rootViewController;
        [navigationController pushViewController:viewController1 animated:YES];
    } else if ([controllerName isEqualToString:@"ViewController2"]) {
        ViewController2 *viewController2 = [[ViewController2 alloc] init];
        UINavigationController *navigationController = (UINavigationController *)self.window.rootViewController;
        [navigationController pushViewController:viewController2 animated:YES];
    }
    
    completionHandler(UIBackgroundFetchResultNewData);
}