未调用 didReceiveRemoteNotification，iOS 10答案

【问题标题】：didReceiveRemoteNotification not called, iOS 10未调用 didReceiveRemoteNotification，iOS 10
【发布时间】：2023-03-25 09:41:01
【问题描述】：

在 iOS 9.3 中，didReceiveRemoteNotification 方法在以下两种情况下都会被调用。

1) 收到推送通知时 2) 当用户通过点击通知启动应用程序时。

但在 iOS 10 上，我注意到当用户通过点击通知启动应用程序时，didReceiveRemoteNotification 方法确实不会触发。只有在收到通知时才会调用它。因此，从通知启动应用程序后，我无法执行任何进一步的操作。

应该如何解决这个问题？有什么想法吗？

【问题讨论】：

使用 ObjC 或 Swift
这可能会有所帮助stackoverflow.com/questions/31450403/…

标签： ios objective-c swift3 apple-push-notifications

【解决方案1】：

我认为这是按设计完成的，我目前正在开发 iOS 14，并且发生了同样的情况。我意识到，如果您启用“后台获取”功能并实现 [didReceiveRemoteNotification: withCompletionHandler:] «您可能还想使用 [performBackgroundFetch:] 来执行此操作»，那么您可以在该委托方法中设置断点并调试远程通知

【讨论】：

【解决方案2】：

Swift 4 和 IOS 12。

虽然可能有多种原因（已在其他答案中提到）导致此问题发生，但在我个人的情况下，解决方案与发送推送通知时的有效负载有关：

您需要将 json 负载上的 "content-available" 键设置为 1。

例如：

{"aps":{"alert":"Test", "content-available":1, "badge":1,"sound":"default"}}

【讨论】：

【解决方案3】：

工作版本iOS 11、Swift 4、Xcode 9。只需将以下代码复制粘贴到 AppDelegate 中。

import UIKit
import UserNotifications
@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate,UNUserNotificationCenterDelegate {

    var window: UIWindow?


    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
        if #available(iOS 10, *)
        { // iOS 10 support
            //create the notificationCenter
            let center = UNUserNotificationCenter.current()
            center.delegate = self
            // set the type as sound or badge
            center.requestAuthorization(options: [.sound,.alert,.badge]) { (granted, error) in
                if granted {
                    print("Notification Enable Successfully")
                }else{
                    print("Some Error Occure")
                }
            }
            application.registerForRemoteNotifications()
        }
        else if #available(iOS 9, *)
        {
            // iOS 9 support
            UIApplication.shared.registerUserNotificationSettings(UIUserNotificationSettings(types: [.badge, .sound, .alert], categories: nil))
            UIApplication.shared.registerForRemoteNotifications()
        }
        else if #available(iOS 8, *)
        {
            // iOS 8 support
            UIApplication.shared.registerUserNotificationSettings(UIUserNotificationSettings(types: [.badge, .sound,
                                                                                                     .alert], categories: nil))
            UIApplication.shared.registerForRemoteNotifications()
        }
        else
        { // iOS 7 support
            application.registerForRemoteNotifications(matching: [.badge, .sound, .alert])
        }
        return true
    }


    //get device token here
    func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken
        deviceToken: Data)
    {
        let tokenParts = deviceToken.map { data in String(format: "%02.2hhx", data) }
        let token = tokenParts.joined()
        print("Registration succeeded!")
        print("Token: ", token)

        //send tokens to backend server
    }

    //get error here
    func application(_ application: UIApplication, didFailToRegisterForRemoteNotificationsWithError error:
        Error) {
        print("Registration failed!")
    }

    //get Notification Here below ios 10
    func application(_ application: UIApplication, didReceiveRemoteNotification data: [AnyHashable : Any]) {
        // Print notification payload data
        print("Push notification received: \(data)")
    }

    //This is the two delegate method to get the notification in iOS 10..
    //First for foreground
    @available(iOS 10.0, *)
    func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: @escaping (_ options:UNNotificationPresentationOptions) -> Void)
    {
        print("Handle push from foreground")
        // custom code to handle push while app is in the foreground
        print("\(notification.request.content.userInfo)")
    }
    //Second for background and close
    @available(iOS 10.0, *)
    func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response:UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void)
    {
        print("Handle push from background or closed")
        // if you set a member variable in didReceiveRemoteNotification, you will know if this is from closed or background
        print("\(response.notification.request.content.userInfo)")
    }


}

【讨论】：

您调用 application.registerForRemoteNotifications() 不会等待 requestAuthorization。好吗？

【解决方案4】：

类型转换

适用于 Swift3

-

样品见this

导入UserNotifications框架并在Appdelegate中添加UNUserNotificationCenterDelegate

import UserNotifications

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate,UNUserNotificationCenterDelegate  


func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
    // Override point for customization after application launch.

    //create the notificationCenter
    let center  = UNUserNotificationCenter.current()
    center.delegate = self
    // set the type as sound or badge
    center.requestAuthorization(options: [.sound,.alert,.badge,  .providesAppNotificationSettings]) { (granted, error) in
        // Enable or disable features based on authorization

        }
        application.registerForRemoteNotifications()

    return true
}


 func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
 // let chars = UnsafePointer<CChar>((deviceToken as NSData).bytes)
  var token = ""

  for i in 0..<deviceToken.count {
//token += String(format: "%02.2hhx", arguments: [chars[i]])
   token = token + String(format: "%02.2hhx", arguments: [deviceToken[i]])
  }

  print("Registration succeeded!")
  print("Token: ", token)
 }

 func application(_ application: UIApplication, didFailToRegisterForRemoteNotificationsWithError error: NSError) {
  print("Registration failed!")
 }

使用此委托接收通知

 func userNotificationCenter(_ center: UNUserNotificationCenter,  willPresent notification: UNNotification, withCompletionHandler   completionHandler: @escaping (_ options:   UNNotificationPresentationOptions) -> Void) {
    print("Handle push from foreground")
    // custom code to handle push while app is in the foreground
    print("\(notification.request.content.userInfo)")
 }

func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void) {
    print("Handle push from background or closed")
    // if you set a member variable in didReceiveRemoteNotification, you  will know if this is from closed or background
    print("\(response.notification.request.content.userInfo)")
}

func userNotificationCenter(_ center: UNUserNotificationCenter, openSettingsFor notification: UNNotification?) {
let navController = self.window?.rootViewController as! UINavigationController
let notificationSettingsVC = NotificationSettingsViewController()
navController.pushViewController(notificationSettingsVC, animated: true)
}

有关更多信息，请参阅 Apple API Reference

目标 C

AppDelegate.h 有以下几行：

第一步

//Add Framework in your project "UserNotifications"
#import <UserNotifications/UserNotifications.h>  
@interface AppDelegate : UIResponder <UIApplicationDelegate,UNUserNotificationCenterDelegate>

第二步

AppDelegate.m

  // define macro
  #define SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(v)  ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] != NSOrderedAscending)  
  #define SYSTEM_VERSION_LESS_THAN(v) ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] == NSOrderedAscending)

第三步

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
application.applicationIconBadgeNumber = 0;
    if( SYSTEM_VERSION_LESS_THAN( @"10.0" ) ) {  
        [[UIApplication sharedApplication] registerUserNotificationSettings:[UIUserNotificationSettings settingsForTypes:(UIUserNotificationTypeSound |    UIUserNotificationTypeAlert | UIUserNotificationTypeBadge |  UIUserNotificationTypeprovidesAppNotificationSettings) categories:nil]];  
        [[UIApplication sharedApplication] registerForRemoteNotifications];  

        //if( option != nil )  
        //{  
        //    NSLog( @"registerForPushWithOptions:" );  
        //}  
    } else {  
      UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter];  
      center.delegate = self;  
      [center requestAuthorizationWithOptions:(UNAuthorizationOptionSound | UNAuthorizationOptionAlert | UNAuthorizationOptionBadge) completionHandler:^(BOOL granted, NSError * _Nullable error) {
        if( !error ) {
            // required to get the app to do anything at all about push notifications  
            [[UIApplication sharedApplication] registerForRemoteNotifications];
            NSLog( @"Push registration success." );  
        } else {
            NSLog( @"Push registration FAILED" );  
            NSLog( @"ERROR: %@ - %@", error.localizedFailureReason, error.localizedDescription );  
            NSLog( @"SUGGESTIONS: %@ - %@", error.localizedRecoveryOptions, error.localizedRecoverySuggestion );  
        }
        }];
    }

    return YES;
}

这将作为调用 registerForRemoteNotifications 的结果触发：

 - (void)application:(UIApplication*)application didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken  
{  
// custom stuff we do to register the device with our AWS middleman  
 }

然后，当用户点击通知时，会触发：

当应用程序处于前台或后台但未关闭时，这将在 iOS 10 中触发

 -(void) application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo fetchCompletionHandler:(void  
  (^)(UIBackgroundFetchResult))completionHandler  
  {  
// iOS 10 will handle notifications through other methods  

if( SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO( @"10.0" ) )  
{  
  NSLog( @"iOS version >= 10. Let NotificationCenter handle this one." );  
 // set a member variable to tell the new delegate that this is background  
  return;  
}  
NSLog( @"HANDLE PUSH, didReceiveRemoteNotification: %@", userInfo );  

// custom code to handle notification content  

if( [UIApplication sharedApplication].applicationState == UIApplicationStateInactive )  
{  
  NSLog( @"INACTIVE" );  
  completionHandler( UIBackgroundFetchResultNewData );  
}  
else if( [UIApplication sharedApplication].applicationState == UIApplicationStateBackground )  
{  
  NSLog( @"BACKGROUND" );  
  completionHandler( UIBackgroundFetchResultNewData );  
}  
else  
{  
  NSLog( @"FOREGROUND" );  
  completionHandler( UIBackgroundFetchResultNewData );  
}  
}

或使用

  - (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo  
{  
[self application:application didReceiveRemoteNotification:userInfo fetchCompletionHandler:^(UIBackgroundFetchResult result) {  
}];  
}

那么对于iOS 10，这两种方法：

- (void)userNotificationCenter:(UNUserNotificationCenter *)center  
    willPresentNotification:(UNNotification *)notification  
  withCompletionHandler:(void (^)(UNNotificationPresentationOptions options))completionHandler  
    {  
  NSLog( @"Handle push from foreground" );  
  // custom code to handle push while app is in the foreground  
    NSLog(@"%@", notification.request.content.userInfo);
   }  

- (void)userNotificationCenter:(UNUserNotificationCenter *)center  
didReceiveNotificationResponse:(UNNotificationResponse *)response  
  withCompletionHandler:(void (^)())completionHandler  
   {  
     NSLog( @"Handle push from background or closed" );  
     // if you set a member variable in didReceiveRemoteNotification, you  will know if this is from closed or background  
     NSLog(@"%@", response.notification.request.content.userInfo);
    }  

    - (void)userNotificationCenter:(UNUserNotificationCenter *)center 
   openSettingsForNotification:(UNNotification *)notification{
        Open notification settings screen in app
   }

【讨论】：

请不要跨多个问题重新发布答案。每个答案都应针对特定问题进行定制，并且在适用的情况下应将问题标记为重复。
您不需要使用 UserNotificationCenter 请求授权。只需注册为代表就足以解决问题。
抱歉，当我收到 didReceive 通知时如何获取 userInfo？
@Svitlana - 你可以在这里找到 NSLog(@"%@", response.notification.request.content.userInfo);
您是否还需要在后台模式中启用“远程通知”。实际上，我对启用图像中显示的“推送通知”与启用here 中的“远程通知”之间的区别感到有些困惑。如果我只照你说的做而不启用“远程通知”会怎样？

【解决方案5】：

swift 4,如果你使用的是ios 11 或大于9.0的xcode版本那么你必须使用UNUserNotification delegate方法来调用didReceiveRemoteNotification

  func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void) {

//Your code to handle events

}

【讨论】：

【解决方案6】：

顺便说一句，这个问题似乎已在 iOS 10.1 中修复。我在 10.1 上测试了我的应用，一切正常

【讨论】：

【解决方案7】：

Swift 代码：

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
    // Override point for customization after application launch.

    if #available(iOS 10.0, *) {
        let center = UNUserNotificationCenter.currentNotificationCenter()
        center.delegate = self
    }

    // ...

    return true
}

@available(iOS 10.0, *)
public func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void) {        
    print(response.notification.request.content.userInfo)        
}

@available(iOS 10.0, *)
public func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void) {
    print(notification.request.content.userInfo)
}

【讨论】：

【解决方案8】：

这是一个 iOS 错误。它将在 iOS 10.1 中修复。但只需等待 10 月的 10.1 版本发布，而不是实现一个新库并稍后将其删除。

https://forums.developer.apple.com/thread/54322

【讨论】：

【解决方案9】：

我遇到了同样的问题。出现通知横幅，但未调用 -application:didReceiveRemoteNotification:fetchCompletionHandler: 方法。对我来说有效的解决方案是添加- application:didReceiveRemoteNotification: 方法的实现并将调用转发到-application:didReceiveRemoteNotification:fetchCompletionHandler:：

- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo {
    [self application:application didReceiveRemoteNotification:userInfo fetchCompletionHandler:^(UIBackgroundFetchResult result){}];
}

Source.

【讨论】：

此代码对我不起作用。我正在 iOS 15.0 模拟器上对其进行测试。收到通知 -> 出现横幅 -> didReceiveRemoteNotification 未调用。
@nitin.agam 推送通知在 iPhone 模拟器上不起作用