AppDelegate ReceivedRemoteNotification Example

AppDelegate ReceivedRemoteNotification

public override void ReceivedRemoteNotification (UIApplication application, NSDictionary userInfo)
{
	processNotification(userInfo, false);
}

void processNotification(NSDictionary options, bool fromFinishedLaunching)
{
	//Check to see if the dictionary has the aps key.  This is the notification payload you would have sent
	if (null != options && options.ContainsKey(new NSString("aps")))
	{
		//Get the aps dictionary
		NSDictionary aps = options.ObjectForKey(new NSString("aps")) as NSDictionary;

		string alertTitle = string.Empty;
		string alert = string.Empty;
		string sound = string.Empty;
		int badge = -1;
		
		//Extract the alert text
		//NOTE: If you're using the simple alert by just specifying "  aps:{alert:"alert msg here"}  "
		//      this will work fine.  But if you're using a complex alert with Localization keys, etc., your "alert" object from the aps dictionary
		//      will be another NSDictionary... Basically the json gets dumped right into a NSDictionary, so keep that in mind
		if (aps.ContainsKey(new NSString("alert")))
			alert = (aps[new NSString("alert")] as NSString).ToString();

		if (options.ContainsKey(new NSString("alertTitle")))
			alertTitle = (options[new NSString("alertTitle")] as NSString).ToString();

		//Extract the sound string
		if (aps.ContainsKey(new NSString("sound")))
			sound = (aps[new NSString("sound")] as NSString).ToString();
		
		//Extract the badge
		if (aps.ContainsKey(new NSString("badge")))
		{
			string badgeStr = (aps[new NSString("badge")] as NSObject).ToString();
			int.TryParse(badgeStr, out badge);
		}
		
		//If this came from the ReceivedRemoteNotification while the app was running,
		// we of course need to manually process things like the sound, badge, and alert.
		if (!fromFinishedLaunching)
		{
			//Manually set the badge in case this came from a remote notification sent while the app was open
			//if (badge >= 0)
			// Do something with the badge here

			//Manually play the sound
			if (!string.IsNullOrEmpty(sound))
			{
				//This assumes that in your json payload you sent the sound filename (like sound.caf)
				// and that you've included it in your project directory as a Content Build type.
				//var soundObj = MonoTouch.AudioToolbox.SystemSound..FromFile(sound);
				//soundObj.PlaySystemSound();
			}

			//Manually show an alert
			if (!string.IsNullOrEmpty(alert))
			  // Display alert message here
		}
	}
	
	/*
	//You can also get the custom key/value pairs you may have sent in your aps (outside of the aps payload in the json)
	// This could be something like the ID of a new message that a user has seen, so you'd find the ID here and then skip displaying
	// the usual screen that shows up when the app is started, and go right to viewing the message, or something like that.
	if (options.ContainsKey(new NSString("customKeyHere")))
	{
		//You could do something with your customData that was passed in here
	}
	*/
}