Question

对于系统高于iOS 10版本的系统，在UNUserNotificationCenterDelegate中，有两种方法可以阐明是否从用户点击或系统收到消息来调用APNS消息方法：

- (void)userNotificationCenter:(UNUserNotificationCenter *)center willPresentNotification:(UNNotification *)notification withCompletionHandler:(void (^)(UNNotificationPresentationOptions options))completionHandler

- (void)userNotificationCenter:(UNUserNotificationCenter *)center didReceiveNotificationResponse:(UNNotificationResponse *)response withCompletionHandler:(void(^)(void))completionHandler

对于iOS 10版本下的系统，应用程序委托方法- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo存在问题，有3种方法可以调用此方法：

1：当应用程序在后台运行时单击通知消息，将调用此方法。

2：点击应用程序图标，应用程序在后台运行或被杀死，在App真正启动之前（大约1~3秒），在这几秒钟内如果收到APNS消息，也会调用此方法。

3：应用程序正在运行，下拉通知栏以使应用程序变为非活动状态，在此状态下如果收到APNS消息，也将调用此方法。

现在问题是，如何判断这3种点击？通常，如果用户没有点击消息进入应用程序（2和3的点击），应用程序就不应该执行此消息（比如打开基于消息信息的新页面）。但如何知道它是从2和3？

从下面的答案中，发现kind-2已经用applicationState解决了，而kind-3仍然没有回答，有谁知道如何修复它？

Answer 1

您可以使用UIApplication状态检查，如下所示：

///- if app is running in foreground
     if (application.applicationState == UIApplicationStateActive) {

         [self pushNotificationReceivedWhileActiveWithInfo:userInfo];

///- if app was running in background
     } else if (application.applicationState == UIApplicationStateBackground) {
        if (self.pushReceivedWhileClosed != YES) {
         [self pushNotificationReceivedWhileInBackgroundWithInfo:userInfo];
       }
     }

当应用程序完全关闭时，您需要通过保存通知数据从通知打开时从didFinishLaunchingWithOptions获取通知来处理通知，并在用户到达主屏幕时执行它，让我们说：

     ///- when receiving push notification while [app closed]
     if (launchOptions != nil) {
         NSDictionary *dictionary = [launchOptions objectForKey:UIApplicationLaunchOptionsRemoteNotificationKey];
         if (dictionary != nil) {
             NSLog(@"[AppDelegate]##########################AppDelegate######################### Received notification while app CLOSED");

             ///- save the dictionary data and execute it when the app loads for example.
             self.pushReceivedWhileClosed = YES;
         }
     }

Answer 2

检查应用程序didReceiveRemoteNotification

中的应用程序状态

- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo
{
    if ( application.applicationState == UIApplicationStateInactive || application.applicationState == UIApplicationStateBackground  )
    {
         //app was on background
    }
}

Answer 3

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

         NSMutableDictionary *userInfo = [launchOptions objectForKey:UIApplicationLaunchOptionsRemoteNotificationKey];


               if (userInfo != nil)
                {
                    comingFromNotification = YES;
                }else{
                    comingFromNotification = NO;
                }

}

关于＆＃34; didReceiveRemoteNotification＆＃34;委托功能

3 个答案: