My understanding is that both local and remote notification in iOS will not be displayed if the application is in the foreground.
However if I open the mail app on my iPhone and check my email, then on some occasions i get a banner shown to tell me I have received emails. This occurs when the email app is in the foreground.
Does anyone know how this is done (preferably on Swift)? Or is this privilege only available for Apple written applications.
Any help would be appreciated.
You should implement - (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo method in your AppDelegate.
If you want to handle them by inflating views or whathaveyou, you need to do it in that particular method.
Related
I am working in XMPP Application.
When I terminate and kill My Application than,
1)User is Not Connected In XMPP Server. User is Offline. But I want User is Connected and Online. Like Whats App(Appliction).
2)I can't get Any Messages From XMPP Server Side at that time,
- (void)xmppStream:(XMPPStream *)sender didReceiveMessage:(XMPPMessage *)message
This method is not call. So, How Can I get Messages ?
And i also implement Pushnotification but in this way same issue Like,When app is Kill and Terminate than,This method is not call,
- (void)application:(UIApplication )application didReceiveRemoteNotification:(NSDictionary )userInfo fetchCompletionHandler:(void (^)(UIBackgroundFetchResult result))handler
So, Please Guide me In Proper Way and Suggest me How to work as like same Whats App(Application).
Also, We can't set VOIP Flag In .plist file Because this way is not Proper and reject by the apple.
My Goal is Only Notification Work As like Whats App.
1)User is Not Connected In XMPP Server. User is Offline. But I want
User is Connected and Online. Like Whats App(Appliction).
Once you closed or minimized WhatsApp the user gets offline (tested on iPhone4s), and messages received in this state are as push notifications.
2)I can't get Any Messages From XMPP Server Side at that time,
(void)xmppStream:(XMPPStream *)sender didReceiveMessage:(XMPPMessage *)message
This method get called only when application is active. So you can not get messages here after you killed your application.
- (void)application:(UIApplication )application didReceiveRemoteNotification:(NSDictionary )userInfo fetchCompletionHandler:(void (^)(UIBackgroundFetchResult result))handler
This method will get called in following scenarios
If your app is active and you got any new push notification.
If your app is in background or killed or not started then system will show only notification on the top bar, once user tapped on notification it will open your application and then the method will get called.
And of course you can not use VOIP.
WhatsApp shows custom notification when user is active in WhatsApp.
You need to send push notification for every message of your conversation. In this case
If user is active then show your custom notification in app.
If user is inactive (i.e. killed or minimized app) then system will show Notification in notification center.
When user taps on notification, system will launch application, and you have to check for app launching conditions (from which source app launched) and according to conditions join server/chat (or groups if you are using group chat).
Once you joined server with your name/nickname, you will get recent chats. You can also get history, you need to specify while joining chat server / group.
Make sure you are disconnecting from server and also from group when your app is getting minimized or killed. Use following methods to disconnect and/or related changes
1. - (void)applicationDidEnterBackground:(UIApplication *)application
2. - (void)applicationWillTerminate:(UIApplication *)application
Hope this will help you, I have implemented same to achieve expected results as WhatsApp.
When your app kill, that time XMPP Deactivate all service.So, you can send webservice to server which can tell - you are offline.
Then after sever can send you Push notification all chat content.
First of all, If your application is terminated then you will receive Push Notification data in
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
in launchOptions dictionary with key
if (launchOptions)
{
if ([launchOptions valueForKey:UIApplicationLaunchOptionsRemoteNotificationKey])
{
// Your code
}
}
Second, you can use background fetch for retrieving user's message, While background fetch you can connect your stream and fetch messages from XMPP server.
NOTE: WhatsApp's (iOS) version, fetches the message as soon as you open the app, it is connecting to the stream and then fetches the messages.
However you can implement your own logic to customize your functionality.
Read the following document it will help you.
http://xmpp.org/extensions/xep-0168.html
We ned to add priority when the presence of user is set as below:
-(void)GoOnline{
XMPPPresence *goOnline = [XMPPPresence presence];
NSXMLElement *priority = [NSXMLElement elementWithName:#"priority" stringValue:#"-1"];
[goOnline addChild:priority];
[xmppStream sendElement:goOnline];
}
Now to know more about priority, it's role and how it works, read the document from above link.
Hope it may help you :)
Check this link and read the Remote Notifications (iOS 7 and Greater) section which is combining the Background Modes and Remote notifications to download content before launching the app.
You will get the idea and you can implement in your preferred language obj-c or swift.
My app receiving push notification, and showing appropriate info message for that. However when I'm clicking to the message, application becomes active but application didFinishLaunchingWithOptions is not getting called which is right i think, since the application is not suspended and it just resigns active. The question is how i can make sure that user clicked to message when application becomes to foreground ?
I think what you are looking for is this app delegate method:
- (void)application:(UIApplication *)application
didReceiveRemoteNotification:(NSDictionary *)userInfo
It will be called if your app is backgrounded, and the notification payload will be delivered in the userInfo dictionary. This contrasts with the situation when the app is launched from cold start, when this method does not get called, and instead you check in the launchOptions dictionary for the payload.
However the preferred way to do this since iOS7 is to use this:
- (void)application:(UIApplication *)application
didReceiveRemoteNotification:(NSDictionary *)userInfo
fetchCompletionHandler:(void (^)(UIBackgroundFetchResult))completionHandler;
This method is called when a user taps on a notification, regardless of whether the app is launched from cold start or foregrounded from background. So even if you are not using the completionHandler, it provides a more consistent way of accessing the notification payload. If this method is present, the older one does not get called.
If I understand the question correctly, you are asking how to be sure that the app was brought into the foreground as the result of the user “clicking” i.e. acting on a push notification.
When the app is not running at all, you can use -application:didFinishLaunchingWithOptions: as you mention. The launchOptions dictionary contains the payload, etc. — I won’t describe this since you already know how this works.
When the app IS running however, that method is not going to be called. Instead, - application:didReceiveRemoteNotification: is called. BTW this is called if the app was already in the foreground OR if it was in the background and the user “clicked” on the push notification banner/alert to open the app. It will not be called otherwise: so I believe this is exactly what you’re looking for.
The userInfo dictionary provided by this method will contain the notifications data, similarly to -application:didFinishLaunchingWithOptions: for more ad-hoc processing. (Note: userInfo and launchOptions are semantically different, but hopefully this is obvious. :))
I am trying to achieve silent push notification.I need to save the silent push notification data in my database in app so that I can show the unseen notification and its count to users when the users uses the app.
I am using Xcode 6.1 and targeting iOS 7 and later devices. Currently, I am using development certificates for push notification.
I have checked remote notification in the background modes of target project capabilities, also the info-list's background mode has "App downloads content in response to push notifications" in required background modes.
In my AppDelegate.m, I am able to register remote notification and also get the device token. Now when I send push notification, my delegate method gets called when app is in foreground but when app is in background/not running, it doesn't get called though I receive the push notification in banner.
I have implemented this method in AppDelegate.m
-(void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo fetchCompletionHandler:(void (^)(UIBackgroundFetchResult))completionHandler{
NSLog(#"Received push notification");
}
The payload I am sending looks like this:
{
aps: {
content-available: 1
}
}
I tried adding priority, sound etc. But nothing helped me.
Can someone help me to figure out how to save silent push notification data in app when app is in running in the background or not running?
Kindly help me to resolve this issue.
So, you should definitely be able to receive them in the background, but be warned that if the user deliberately kills your app from the task switcher then it won't get them anymore.
With iOS 7 and above the callback is as you say, but before that it was
- (void)application:(UIApplication *)application didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken
Seems unlikely you are targeting iOS 6 though so I would go with either a malformed push packet or background push settings not being quite right.
Do you have the apps info.plistUIBackgroundModes set to remote-notificiton?
Then also add this method to help you debug
- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo fetchCompletionHandler:(void (^)(UIBackgroundFetchResult result))handler
{
//Success
handler(UIBackgroundFetchResultNewData);
}
Silent push notifications are different than user-facing notifications. They are treated as low priority and are rate limited by both APNS and iOS. In practice, this means that silent notifications can only be sent infrequently and there may be a very long delay before they are delivered to an application.
The behavior you are describing is likely the wakeup rate limiter on the device. iOS limits how often apps are launched to perform background work. This is to prevent abusive behavior - some apps might want to stay alive in the background draining the battery forever.
The wakeup rate limiter is not active when Xcode is attached, which makes silent notifications appear to be delivered instantly.
My iOS Notifications book has a lengthy chapter describing the rate limiters and how to work with them.
I am working on a app, where I need to send a push notification to the app to start processing data as needed.
How do I send a push notification to the device so that instead of showing the alert message, the notification is forwarded to the app - whether the app is in the foreground or background..
I did implement the delegate method :
- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo fetchCompletionHandler:(void (^)(UIBackgroundFetchResult))completionHandler
however this is called only when the app is in the foreground. When the app is in the background the notification shows up on the notification center.
Please advice.
To make this works you need to do few step:
set background mode remote-notification
implement application:didReceiveRemoteNotification:fetchCompletionHandler: method in app delegate
and make sure push notification payload contains key "content-available" : 1
related docs:
App States and Multitasking
Local and Push Notifications in Depth
Is your application using a backend? An example would be Parse or another to store your data.
Parse, for example, allows you to add push notifications that can be customized and changed to get the most out of your application.
I have a question related to handling notifications but in case of application is closed. In my iOS application I schedule the local notifications, and I successfully handle them when application is either in foreground or background. But when application is closed and I get local notification I can't handle it. I mean after pressing "show" button I have to move the user to a specific window. But I don't know where to put the part of the code which deals with handling.
Any idea???
Thanks in advance.
Armen
Check - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions in your app delegate, you should receive dictionary from your notification as launching options, as far as I know.
Try this
I could post some code hear but i think the better way is no copy/paste work. So here is the link after they show single notification, they explain how to handle notifications. tutorial about handling notifications