推送通知 -didFinishLaunchingWithOptions

Question

当我发送推送通知并且我的应用程序处于打开状态或在后台并单击推送通知时，我的应用程序将重定向到 PushMessagesVc viewController（如预期的那样）

我使用如下代码：

-(void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo {
    UIStoryboard *mainstoryboard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil];
    PushMessagesVc *pvc = [mainstoryboard instantiateViewControllerWithIdentifier:@"PushMessagesVc"];

    [self.window.rootViewController presentViewController:pvc
                                                 animated:YES
                                               completion:NULL];
}

上面的代码/场景没有问题，但是如果应用程序关闭并且我点击推送通知，在这种情况下应用程序不会重定向我的PushMessagesVc viewController 并且应用程序停留在主屏幕上.

对于第二种情况，我使用以下代码：

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    sleep(1);
    [[UIApplication sharedApplication] registerForRemoteNotificationTypes:(UIRemoteNotificationTypeAlert | UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeNone)];
    [UIApplication sharedApplication].applicationIconBadgeNumber = 1;

    NSDictionary *userInfo = [launchOptions valueForKey:@"UIApplicationLaunchOptionsRemoteNotificationKey"];
    NSDictionary *apsInfo = [userInfo objectForKey:@"aps"];

    if(apsInfo) {
        UIStoryboard *mainstoryboard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil];
        PushMessagesVc* pvc = [mainstoryboard instantiateViewControllerWithIdentifier:@"PushMessagesVc"];
        [self.window.rootViewController presentViewController:pvc animated:YES completion:NULL];
        return YES;
    }
    return YES;
}

但在这种情况下，PushMessagesVc 不会出现。

Answer 1

由于您只想在收到推送通知时显示viewController，因此您可以尝试将NSNotificationCenter 用于您的目的：

第 1 部分：设置一个类（在您的情况下为 rootViewController）以收听/响应 NSNotification

假设，MainMenuViewController 是您的navigationController 的rootViewController。
设置这个类来听NSNotification：

- (void)viewDidLoad {
    //...
    [[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(presentMyViewOnPushNotification)
                                                 name:@"HAS_PUSH_NOTIFICATION"
                                               object:nil];
}

-(void)presentMyViewOnPushNotification {
    //The following code is no longer in AppDelegate
    //it should be in the rootViewController class (or wherever you want)

    UIStoryboard *mainstoryboard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil];
    PushMessagesVc *pvc = [mainstoryboard instantiateViewControllerWithIdentifier:@"PushMessagesVc"];

    [self presentViewController:pvc animated:YES completion:nil];
    //either presentViewController (above) or pushViewController (below)
    //[self.navigationController pushViewController:pvc animated:YES];
}

---

第 2 部分：发布通知（可以从代码中的任何位置）

在您的情况下，AppDelegate.m 方法应如下所示：

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    //firstly, don't sleep the thread, it's pointless
    //sleep(1); //remove this line

    if (launchOptions) { //launchOptions is not nil
        NSDictionary *userInfo = [launchOptions valueForKey:UIApplicationLaunchOptionsRemoteNotificationKey];
        NSDictionary *apsInfo = [userInfo objectForKey:@"aps"];

        if (apsInfo) { //apsInfo is not nil
            [self performSelector:@selector(postNotificationToPresentPushMessagesVC) 
                       withObject:nil
                       afterDelay:1];
        }
    }
    return YES;
}

-(void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo {
    //this method can be done using the notification as well
    [self postNotificationToPresentPushMessagesVC];
}

-(void)postNotificationToPresentPushMessagesVC {
    [[NSNotificationCenter defaultCenter] postNotificationName:@"HAS_PUSH_NOTIFICATION" object:nil];
}

---

PS：我还没有为我的项目做过这个（还），但它很有效，是我能想到的最好的方法（目前 >)

Answer 2

斯威夫特 5

在didFinishLaunchingWithOptions中获取推送通知字典，当应用程序被杀死并接收推送通知并且用户点击它时

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
    if let userInfo = launchOptions?[UIApplication.LaunchOptionsKey.remoteNotification] as? [String: AnyObject] {
        if let aps1 = userInfo["aps"] as? NSDictionary {
            print(aps1)
        }
    }
    return true
}

推送通知字典将显示在警报中。

Answer 3

斯威夫特 2.0 对于“未运行”状态（本地和远程通知）

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {


// Handle notification
if (launchOptions != nil) {

    // For local Notification
    if let localNotificationInfo = launchOptions?[UIApplicationLaunchOptionsLocalNotificationKey] as? UILocalNotification {

        if let something = localNotificationInfo.userInfo!["yourKey"] as? String {

            self.window!.rootViewController = UINavigationController(rootViewController: YourController(yourMember: something))
        }


    } else

    // For remote Notification
    if let remoteNotification = launchOptions?[UIApplicationLaunchOptionsRemoteNotificationKey] as! [NSObject : AnyObject]? {

        if let something = remoteNotification["yourKey"] as? String {
            self.window!.rootViewController = UINavigationController(rootViewController: YourController(yourMember: something))
        }
    }

}


return true

}

Answer 4

斯威夫特 5

我在 didFinishLaunchingWithOptions 中将通知写入 var "notification"，如果 "notification" != nil 启动了我在 applicationDidBecomeActive 中的推送，然后将其删除 (= nil)

class AppDelegate: UIResponder, UIApplicationDelegate {

var notification: [AnyHashable : Any]? = nil

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {

    registerForPushNotifications()

    //write notification to var
    if launchOptions?[UIApplication.LaunchOptionsKey.remoteNotification] != nil {
        self.notification = launchOptions![UIApplication.LaunchOptionsKey.remoteNotification] as? [AnyHashable : Any]
    }

    return true
}

func applicationDidBecomeActive(_ application: UIApplication) {
    if notification != nil {
    //for launch notification after terminate app
        NotificationCenter.default.post(name: Notification.Name(rawValue: "startPush"), object: nil)
        notification = nil
    }
}

Answer 5

Swift 版本：

   if let localNotification: UILocalNotification = launchOptions?[UIApplicationLaunchOptionsLocalNotificationKey] as? UILocalNotification { //launchOptions is not nil
        self.application(application, didReceiveLocalNotification: localNotification)
    }