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Having trouble with offline sync
Hi James,
Can you tell me the version of Kinvey Xamarin SDK that you are using?
Regards,
Wani
Kinvey Support
Hi Wani,
I ran through some tests today and actually realized it is working but offline sync (updating the only records with ones stored locally) only seems to trigger when I relaunch the app while the phone has an internet connection. The Kinvey Xamarin SDK version I'm using is 1.6.10.
Thanks,
James
Hi James,
If I understand correctly, the issue now is that the app doesn't sync if network connectivity is established when the app is running. For the sync to happen, the app has to be relaunched when network is available. Is that correct?
Regards,
Wani
Hi Wani,
That's correct.
Regards,
James
James Szklarz
Hi,
I've been having some trouble getting offline sync to work in Xamarin.Android with kinvey. I've followed the documentation given here but it doesn't seem to work for me. As long as the phone is online saving data works fine but as soon as I turn off the connection to test offline sync I get the exception:
Here is the code that is causing the exception:
AsyncAppData<Event> events = BackEndService.mKinveyClient.AppData<Event> ("eventCollection", typeof(Event)); events.setOffline (new SQLiteOfflineStore (), OfflinePolicy.ONLINE_FIRST); try { Event saved = await events.SaveAsync(ev); <----------------exception originates here Console.WriteLine ( "Event: UserId=" + saved.uId); } catch (Exception e) { Console.WriteLine (e + e.StackTrace); }The mKinveyClient client:
public static readonly Client mKinveyClient = new Client.Builder(appid, secret) .setLogger(delegate(string msg) { Console.WriteLine(msg);}) .setOfflinePlatform(new SQLitePlatformAndroid()) .setFilePath(System.Environment.GetFolderPath(System.Environment.SpecialFolder.Personal)) .build();The Event class:
[JsonObject(MemberSerialization.OptIn)] public class Event { [JsonProperty("userId")] public string uId { get; set; } }The full exception stack trace:
I've tried numerous different things to try to fix this but nothing I try is getting me anywhere. It seems like the code is perfectly in line with the documentation but it's generating a constraint exception at the sqlite level of execution. I guess if it doesn't get resolved I'll have to settle for online usage only for now...what a shame.