I was trying to fetch remote notification info when the app was not running,so I was told that I can get from :
UILocalNotification *localNotification = [launchOptions
objectForKey:UIApplicationLaunchOptionsRemoteNotificationKey]
in method:
- (BOOL)application:(UIApplication *)application
didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
,but still can't get info.
Then I use alertView to show the info on iPhone(launch without Xcode),still can't get the info.
Any other issue would cause this? Please let me know if you have any ideas.
How to retrieve and handle remote notifications:
app is running
The userInfo in below method already includes the push notification
- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo
{
}
app not running
The value for key in launchOptions includes the push notification,under two circumstance:
1.screen is locked,when receive the remote push notification,screen is lighted and user unlock the screen then directly launch the app.
2.user tap on the notification on the drop-down menu to launch the app.
If user tap on the app directly,then the notification will be gone and missed.
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
[launchOptions valueForKey:UIApplicationLaunchOptionsRemoteNotificationKey] description];
}
That key is only in the launch options when the user starts your app from the notification (e.g. taps on it in notification center). Incidentally, I don't think a remote notification would be the class you're using (UILocalNotification).
If your app wasn't in the foreground when the device received the push, and the user didn't launch your app from the notification, the notification is gone. You have to check your own servers to see if you missed anything.
Related
I have some UILocalNotifications in my app. When I receive one while I am in the app or if I press on the notification banner from the block screen or when it appears, the didReceiveLocalNotification works just fine. However, if I do not use the application and if I press on the icon of it (not on the banner) after notification banner appeared, the didReceiveLocalNotification method is not being called.
What should I do in this case, if I still want receive information about local notifications? Can I get it somehow in the applicationDidBecomeActive: method for example?
If you're app is completely shut down and you open it with a local notification, your local notification info will be passed into application:didFinishLaunchingWithOptions:.
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
UILocalNotification *localNotification = launchOptions[UIApplicationLaunchOptionsLocalNotificationKey];
if (localNotification)
{
// Do whatever
}
// ...
}
When my app is in minimized state and when that time push notification alert comes with two buttons close and view. I want to open particular screen in app when user click view button on alert.
When app is open state that time I can handle push notification by using below method
- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo
If any one knows how to handle push notification alert buttons when app is in minimized state please help me. Thanks in advance.
Yeah
When The App is brought into running state via Notifications..This method is fired
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
You can then retrieve the notification received from the launchOptions dictionary and open the appropriate screen.
I am working on one iPhone app which involves a push notification. As I have seen in many documents and tutorials it suggests to register for push notification with in
application:(UIApplication *)application
didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
like the following:
- (BOOL)application:(UIApplication *)application
didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
[[UIApplication sharedApplication] registerForRemoteNotificationTypes:UIRemoteNotificationTypeAlert| UIRemoteNotificationTypeBadge| UIRemoteNotificationTypeSound];
...
}
now the question is, if the app was not running (even in background), when the push come, it cant process the push message, but if I use the push message again from the notification area and lunch the app again, I can get my message.
what I need to do to make my app get the push message even when it lunch for the first time?
You might be conflating the notion of registering for and receiving notifications. It is impossible for an app to receive a push notification before the registerForRemoteNotificationTypes: method is called the first time, since this method provides the push token that is used to send push notifications in the first place.
So, you must be talking about receiving notifications under the two separate situations in which they can be delivered: upon initial app launch, and during the execution of the program.
In order to handle notifications of the first type, you must inspect the options dictionary sent to application:didFinishLaunchingWithOptions:. The following code shows how to route a notification received at launch to the delegate method that is called when a push notification arrives while the app is already running.
Place this in your application:didFinishLaunchingWithOptions: override:
NSDictionary *pushNotificationPayload = [launchOptions valueForKey:UIApplicationLaunchOptionsRemoteNotificationKey];
if(pushNotificationPayload) {
[self application:application didReceiveRemoteNotification:pushNotificationPayload];
}
With iOS 5, push notifications can appear as banner and disappear after a few seconds.
I understand that didReceiveRemoteNotification will be called when user taps on the banner.
My question is, if the banner has disappeared and my user sees that there is a badge number on the app, they will tap on the app icon to start the app. Now if the app is running in the background, how do I check that the app is brought to foreground and there has been a notification, and do the necessary?
The purpose of my notification is basically to inform user there has been an update to the app content and encourage them to run the app to get the latest contents. My app only checks for latest contents at launch time and doesn't check for updates periodically.
This question is a bit old, but I'll pop what I've found in here anyway.
There are two methods you need to implement in your app delegate to check if your app was either launched from the remote notification (From when the app is not running on your device), or received the remote notification while running (in the background or foreground).
First is a method that is already in your App Delegate:
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
To check if this was launched from a remote notification, have some code similar to this:
// Check to see if launched from notification
if (launchOptions != nil)
{
NSDictionary* dictionary = [launchOptions objectForKey:UIApplicationLaunchOptionsRemoteNotificationKey];
if (dictionary != nil)
{
NSLog(#"Launched from push notification: %#", dictionary);
// DO SOMETHING HERE
}
}
The other method you will need to implement is specifically for the case that your application for when your application is running:
-(void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo
{
NSLog(#"Received notification: %#", userInfo);
}
How you handle the notification from there is up to you, but that's how your app knows about it!
In this second method, you can check the UIApplicationState of the passed application to find out if you were in the foreground or background.
I am scheduling a local notification which is firing fine. I need to know how to allow a user to launch my app after the notification has been displayed on screen.
I also need to know how to identify this type of launch to direct the user to a specific view, relevant only to users who have arrived as a result of the notification.
I have been looking at the UIApplicationDelegate protocol reference and feel it could be in the area of the launchOptions within -didFinishLaunchingWithOptions:, but need a little pointer.
Your application will launch automatically, you don't have to do anything in the app itself for that to happen.
If that's not already happening, check that you've specified an alertAction for the notification when you create it - that's the label of the button in the notification alert that opens your app and if you don't set it, the notification alert won't launch the app.
To open a specific view, use the launchOptions and the application:didReceiveRemoteNotification method.
didFinishLaunchingWithOptions: would do the trick.
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
UILocalNotification *localNotif = [launchOptions objectForKey:UIApplicationLaunchOptionsLocalNotificationKey];
// .. etc
};
Keep in mind you also need to implement
- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo
if you receive a push notification while the app is running (fore- or background)
The launch options should contain the key UIApplicationLaunchOptionsLocalNotificationKey which in turn gives you the UILocalNotification associated with the notification. Additionally, when scheduling the notification your UILocalNotification has the properties alertBody, alertAction and optionally alertLaunchImage which control the information being displayed. The action decribes the button text that launches your app while the body is the information being deisplayed above the buttons. You can supply a specific launch image for this launch to mimic the app already being run.
Also note Bogatyr's answer concerning the cases where your app is not being launched but already there, just suspended.