//------------------------------------------------------------------------------
public override void ViewDidLoad()
{
base.ViewDidLoad();
LoginManager login = new LoginManager();
login.LoginBehavior = LoginBehavior.Web;
login.LogOut();
login.LogInWithReadPermissions(readPermissions.ToArray(), null, delegate(LoginManagerLoginResult result, NSError error)
{
if (error != null)
{
UpdateCredentials(string.Empty);
}
else if (result.IsCancelled)
{
UpdateCredentials(string.Empty);
((AppDelegate)UIApplication.SharedApplication.Delegate).Continue(new SettingsViewController
{
AddLoginButton = true,
AddSyncInProgressLabel = false,
EnableSettingsReload = false,
AddSyncDatasetButton = false,
});
}
else
{
var accessToken = result.Token;
UpdateCredentials(accessToken.TokenString);
var appDelegate = (AppDelegate)UIApplication.SharedApplication.Delegate;
appDelegate.SynchronizeSettings();
appDelegate.Continue(new SettingsViewController
{
AddLoginButton = false,
AddLogoutButton = true,
AddSyncInProgressLabel = true,
EnableSettingsReload = true,
AddSyncDatasetButton = true,
});
// plugins are persistant and next call return the same object
var plugin = CognitoSyncSettings.GetPlugin <ICognitoSyncSettingsPlugin>();
plugin.SynchronizeDataset();
}
});
}
//------------------------------------------------------------------------------
public override bool FinishedLaunching(UIApplication application, NSDictionary launchOptions)
{
Profile.EnableUpdatesOnAccessTokenChange(true);
Settings.AppId = Constants.FacebookAppId;
Settings.DisplayName = Constants.FacebookAppName;
CognitoSyncSettings.LoadSettings();
// plugins are persistant per instance (static settings processed by separate, internal instance)
// and next call will return the same object
var plugin = CognitoSyncSettings.GetPlugin <ICognitoSyncSettingsPlugin>();
plugin.OnSyncSuccess += (sender, e) =>
{
var el = m_ViewController as ICognitoSyncEventsListerner;
InvokeOnMainThread(() =>
{
if (el != null)
{
el.OnSyncSuccess(sender, e);
}
});
};
plugin.OnSyncFailure += (sender, e) =>
{
var el = m_ViewController as ICognitoSyncEventsListerner;
InvokeOnMainThread(() =>
{
if (el != null)
{
el.OnSyncFailure(sender, e);
}
});
};
plugin.OnDatasetDeleted = delegate(Dataset ds)
{
// Do clean up if necessary
// returning true informs the corresponding dataset can be purged in the local storage and return false retains the local dataset
return(true);
};
plugin.OnDatasetMerged = delegate(Dataset dataset, List <string> datasetNames)
{
// returning true allows the Synchronize to continue and false stops it
return(true);
};
plugin.OnSyncConflict = delegate(Dataset dataset, List <SyncConflict> conflicts)
{
var resolvedRecords = new List <Amazon.CognitoSync.SyncManager.Record>();
foreach (SyncConflict conflictRecord in conflicts)
{
// SyncManager provides the following default conflict resolution methods:
// ResolveWithRemoteRecord - overwrites the local with remote records
// ResolveWithLocalRecord - overwrites the remote with local records
// ResolveWithValue - to implement your own logic
resolvedRecords.Add(conflictRecord.ResolveWithRemoteRecord());
}
// resolves the conflicts in local storage
dataset.Resolve(resolvedRecords);
// on return true the synchronize operation continues where it left,
// returning false cancels the synchronize operation
return(true);
};
Window = new UIWindow(UIScreen.MainScreen.Bounds);
Continue(new SettingsViewController()
{
AddLoginButton = true
});
Window.MakeKeyAndVisible();
// This method verifies if you have been logged into the app before, and keep you logged in after you reopen or kill your app.
return(ApplicationDelegate.SharedInstance.FinishedLaunching(application, launchOptions));
}
