ios - 获得静默推送通知

Question

当应用程序完全关闭时，我试图接收静默推送通知，但我没有收到推送，我错过了什么？

1. 我在拆分中添加：必需的后台模式->应用程序下载内容以响应推送通知

2. 我在AppDelagate：

   func application(application: UIApplication, didReceiveRemoteNotification userInfo: [NSObject : AnyObject], fetchCompletionHandler completionHandler: (UIBackgroundFetchResult) -> Void) {
   
   completionHandler(UIBackgroundFetchResult.NewData);
   JLToast.makeText("background").show()}
   

3. 我发送推送：

   aps { 内容可用：1 }

当应用程序在后台时，我会收到静默推送通知，但是当应用程序在后台（完全被击落）时，我没有收到推送。

什么不见​​了？

Answer 1

As far as I know, silent push notification won't work in case the app is forced quit (by user). Consider 2 cases:

• Force quit (by user, removing app from running apps list): app won't get notifications
• Not force quit (Eg: when user restarts the phone, the app will be closed but it's not considered as being forced quit by user): the app will be launched in background mode and receive notifications