当应用程序处于后台状态时，确定是否点击通知横幅或中心通知以启动应用程序

Question

我检查了很多线程和 Apple Documentation 以确定应用程序是否在点击通知时启动。我只想在用户点击通知时处理推送通知。我无法弄清楚 application:didReceiveRemoteNotification:fetchCompletionHandler: 被调用的原因。当应用程序处于后台时，如何检查此方法是在点击通知时调用还是直接从推送中调用。

谢谢。

Answer 1

- (void)application:(UIApplication *)app didReceiveRemoteNotification:(NSDictionary *)userInfo {
    //No Need to store the push notification if it is in active or in closed state we can directly navigate to the screens

    NSLog(@"notification didReceive method called");

    if([app applicationState] == UIApplicationStateInactive) {
        //If the application state was inactive, this means the user pressed     an action button
        //Handle the code after push notification received  
    }
    else if ([app applicationState] == UIApplicationStateActive) {
        //Application is in Active state handle the push notification here
    }
}

Answer 2

这里是推送通知的几个步骤

1).当您的应用程序被杀死时，既不活跃也不在后台。在这种情况下，didFinishLaunchingWithOptions 将在您收到任何通知时致电。

2).当您的应用程序处于活动状态或处于后台时，在这种情况下 didReceiveRemoteNotification:fetchCompletionHandler** 将被调用。您必须在此处确定应用程序状态，如下所示。

if ( application.applicationState == UIApplicationStateActive ) {  
    // app was already in the foreground
}
else {
    // app was just brought from background to foreground
}

当应用程序处于后台状态时，确定是否点击通知横幅或中心通知以启动应用程序

Determine if notification banner or notification in center was tapped to launch the app when app is background state

push-notification

ios