update sqlite db from push notification, app is closed and not running in background iOS

Question

I am trying to update local sqlite database when notification received and app is closed/killed by user. Everything works fine when app is background or active mode.

Reference : REFERENCE STACK LINK 1

REFERENCE STACK LINK 2

Here is code i am trying:

-(void)application:(UIApplication )application didReceiveRemoteNotification:(NSDictionary )userInfo fetchCompletionHandler:(nonnull void (^)(UIBackgroundFetchResult))completionHandler{



NSLog(@"App Background :%@",userInfo);



    if(application.applicationState == UIApplicationStateInactive) {

    NSLog(@"Inactive");

    //Show the view with the content of the push

    [self BackgrounCall:userInfo];

    completionHandler(UIBackgroundFetchResultNewData);

    } else if (application.applicationState == UIApplicationStateBackground) {

    NSLog(@"Background");

    //Refresh the local model
    [self BackgrounCall:userInfo];
    completionHandler(UIBackgroundFetchResultNewData);

   } else {

    NSLog(@"Active");

    //Show an in-app banner
    [self BackgrounCall:userInfo];
    completionHandler(UIBackgroundFetchResultNewData);

       }  
   }

Question : Why it is not working in application INACTIVE state. Is there a solution to this issue ?

- (BOOL)application:(UIApplication )application didFinishLaunchingWithOptions:(NSDictionary )launchOptions {
// Override point for customization after application launch.
[[Database shareDatabase] createEditableCopyOfDatabaseIfNeeded];


if(launchOptions != nil)

{  
    // opened from a push notification when the app is closed
    NSDictionary* userInfo = [launchOptions objectForKey:UIApplicationLaunchOptionsRemoteNotificationKey];

    if (userInfo != nil)
    {
        NSLog(@"userInfo->%@", [userInfo objectForKey:@"aps"]);
        [self application:application didReceiveRemoteNotification:launchOptions[UIApplicationLaunchOptionsRemoteNotificationKey]];
    }
}
else
{   
}
 }

score 1 · Answer 1 · answered Sep 14 '17 at 06:58

1

-(void)application:(UIApplication )application didReceiveRemoteNotification:

Method gets called only if user will tap on notification banner only if you app is in background. If you app is killed then you need to handle tap of banner in

didFinishLaunchWithOptions

method.You can use the following code to know if you tap on banner and the app is killed.

// Push Notification Handling
[UIApplication sharedApplication].applicationIconBadgeNumber = 0;

NSDictionary *pushDic = [[NSDictionary alloc]init];
pushDic = [launchOptions objectForKey:@"UIApplicationLaunchOptionsRemoteNotificationKey"];

if (pushDic)
{
    NSLog(@"got push when app killed->%@",pushDic);       
}

answered Sep 14 '17 at 06:58

Krishna Datt Shukla

987
8
21

when user opens app clicking notification, it is working. the case which is not working is: app killed, notification received , user opens app using app icon not the notification, then no sqlite update – chetan patel Sep 14 '17 at 07:03
Are you using the above code in didFinishLaunchWithOptions method ? – Krishna Datt Shukla Sep 14 '17 at 07:07
yes... please check updated question above. please correct me if i am doing anything wrong. – chetan patel Sep 14 '17 at 07:10
you are using only didReceiveRemoteNotification method to handle notification. You need to handle didFinishLaunchWithOptions method for killed state. – Krishna Datt Shukla Sep 14 '17 at 07:12
example if possible with didReceiveRemoteNotification and with launchOptions ... please – chetan patel Sep 14 '17 at 07:14
your didReceiveRemoteNotification method is okay. You just need to write the above code in didFinishLaunchWithOptions (the first method of AppDelegate class) . And execute your db query there. – Krishna Datt Shukla Sep 14 '17 at 07:16
remove [self application:application didReceiveRemoteNotification:launchOptions[UIApplicationLaunchOptionsRemoteNotificationKey]]; from didFinishLaunchWithOptions method and execute your query directly – Krishna Datt Shukla Sep 14 '17 at 07:20
@chetanpatel : Have you enabled Background Mode and Remote Notification in that as well – Abhishek Thapliyal Sep 14 '17 at 13:15
@AbhishekThapliyal.. yes... including background fetch – chetan patel Sep 14 '17 at 15:02

update sqlite db from push notification, app is closed and not running in background iOS

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