Add alertview in application when you recive push notification - ios

Question

Hi Im currently developing an app where i have push notifications activated. I use parse.com. I have got it working so far that i can send a notification and the device receives it and i also get a badge on the app. But when i open the nothing happens and the badge does not disappear. I've set it in my appdelegate.m so parse is handling the push notifications. Heres some code that im using:
- (void)application:(UIApplication *)application
didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)newDeviceToken {
// Store the deviceToken in the current installation and save it to Parse.
PFInstallation *currentInstallation = [PFInstallation currentInstallation];
[currentInstallation setDeviceTokenFromData:newDeviceToken];
[currentInstallation saveInBackground];
}
and also:
- (void)application:(UIApplication *)application
didReceiveRemoteNotification:(NSDictionary *)userInfo {
[PFPush handlePush:userInfo];
}
Thanks
Ok thaks but how to i show the content of the push notification in the alert view? Or is that not a problem do i just have to configure a alertview with no text?

Answer 1

There are two scenarios:
App closed
When the app is closed and the user taps on a notification it's like when taps on the app icon. The app starts from application:didFinishLaunchingWithOptions:. To know if the app is opened normal (tap icon) or with a notification, just check the dictionary launchOptions for the key UIApplicationLaunchOptionsRemoteNotificationKey.
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
NSDictionary * pushDictionary = [launchOptions objectForKey:UIApplicationLaunchOptionsRemoteNotificationKey];
if (pushDictionary)
{
//AlertView
}
}
App opened
When the app is opened there are two possible case
App in background UIApplicationStateInactive
App in foreground UIApplicationStateActive
- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo
{
if (application.applicationState == UIApplicationStateInactive)
{
//AlertView
}
else if (application.applicationState == UIApplicationStateActive)
{
// AlertView
}
}
pushDictionary and userInfo are exactly the same dictionary that represents the notification.
Edit 1
A push notification is a JSON file that iOS automatically convert into a NSDictionary. The standard configuration is:
{"aps":
{
"alert":"Text message",
"sound":"default",
"badge":"1" //the number shown on the app's icon
}
}
From this base you can extend the JSON and put inside your own content. For example
{"aps":
{
"alert":"Text message",
"sound":"default",
"badge":"1" //the number shown on the app's icon
},
"Name":"Fry"
}
Now you can retrive the name in this very simple way:
NSString * name = userInfo[#"Name"];
and show it in the alert.
Edit 2
To show the content of push in UIAlertView just do this:
UIAlertView *av = [[UIAlertView alloc] initWithTitle:name
message:name
delegate:self
cancelButtonTitle:nil
otherButtonTitles:#"Ok", nil];
[av show];

Answer 2

If you receive push notification while your app isn't active (killed)
- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo
will not be triggered. Instead of that you will have to use object with key UIApplicationLaunchOptionsRemoteNotificationKey from launchOptions dictionary inside
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions