// Save user id on device to use it later
async void LoginIsSuccessful(UsersModel user)
{
// Add the logged in user into local table
if (await userRepository.AddUser(user) == 0)
{
//DisplayAlertMessage(userRepository.Message);
return;
}
// Set Shared User Defaults
var plist = NSUserDefaults.StandardUserDefaults;
plist.SetBool(true, "isUserLoggedIn"); // set flag that user logged in
plist.SetString(user.Id, "userId");
// Set user settings
UserSettings.DefaultSettings.SetSettings();
// Create Table Prompts and load data from the remote server
var promptRepository = new PromptsRepository();
await promptRepository.GetTablePrompts();
// After login, get full table "user_prompts" from remote database and insert it in local database
var userPromptRepository = new UsersPromptsRepository();
await userPromptRepository.SyncAllTableUserPrompts(user.Id);
// Remove overlay
LoadingOverlay.RemoveOverlay();
// Create an instance of AppDelegate and call SetRootViewController method to display MainTabBarController after successfu login
var appDelegate = UIApplication.SharedApplication.Delegate as AppDelegate;
appDelegate.SetRootViewController(true);
}
// Get prompts in background mode
public async override void PerformFetch(UIApplication application, Action <UIBackgroundFetchResult> completionHandler)
{
//Return no new data by default
var result = UIBackgroundFetchResult.NoData;
try
{
// Check for new data, and display it
var userPromptRepository = new UsersPromptsRepository();
string userId = NSUserDefaults.StandardUserDefaults.StringForKey("userId");
var newPrompt = userPromptRepository.GenerateNewPrompt(userId);
// If prompt succesfully generated, display it in collection view and show notification
if (newPrompt.Any())
{
AppNotifications.Display(newPrompt.First());
await userPromptRepository.SyncCurrentUserPrompts(userId);
// Inform system of fetch results
result = UIBackgroundFetchResult.NewData;
}
else
{
//AppNotifications.Display(new DisplayedPromptsModel() { Category = "", Task = "There is no any prompt to display" });
completionHandler(UIBackgroundFetchResult.NoData);
}
}
catch
{
//Indicate a failed fetch if there was an exception
result = UIBackgroundFetchResult.Failed;
}
finally
{
completionHandler(result);
}
}