如果在 ios 中收到通知时从后台删除应用程序，didReceiveLocalNotification 不会触发

Question

我已经设置了一个本地通知，它会以一定的时间间隔触发，当我点击横幅时，会调用“didReceiveLocalNotification”。现在，当我从后台删除应用程序时，当我在横幅上点击时，通知会再次出现，但这没有调用“didReceiveLocalNotification”的时间。请告诉我在这种情况下如何知道通知触发。

Answer 1

如果应用程序没有在后台运行，didReceiveLocalNotification 将不会调用 应用程序 didFinishLaunchingWithOptions:叫。在启动选项中，您可以查看通知

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

// If application is launched due to alarm notification, provide the option to snooze it.
UILocalNotification *notification = [launchOptions objectForKey:UIApplicationLaunchOptionsLocalNotificationKey];

  if (notification)
  {
    // application is launched due to notification
  }
}