public static void DoWork(this UIViewController controller, Action work, Action<Exception> error = null, Action final = null)
{
MBProgressHUD hud = null;
hud = new MBProgressHUD(controller.View.Superview) {Mode = MBProgressHUDMode.Indeterminate, TitleText = "Loading..."};
controller.View.Superview.AddSubview(hud);
hud.Show(true);
ThreadPool.QueueUserWorkItem(delegate {
try
{
Utilities.PushNetworkActive();
work();
}
catch (Exception e)
{
if (error != null)
error(e);
controller.InvokeOnMainThread(delegate {
Utilities.ShowAlert("Error", e.Message);
});
}
finally
{
Utilities.PopNetworkActive();
if (final != null)
controller.InvokeOnMainThread(() => final());
}
if (hud != null)
{
controller.InvokeOnMainThread(delegate {
hud.Hide(true);
hud.RemoveFromSuperview();
});
}
});
}
/// <summary>
/// Begins the login process.
/// </summary>
private void BeginLogin()
{
MBProgressHUD hud = null;
string username = null, password = null;
Account loggedInAccount = null;
//The nice hud
InvokeOnMainThread(delegate {
username = User.Text;
password = Password.Text;
hud = new MBProgressHUD(View) {Mode = MBProgressHUDMode.Indeterminate, TitleText = "Logging In..."};
View.AddSubview(hud);
hud.Show(true);
});
try
{
loggedInAccount = Login (username, password);
}
catch (Exception e)
{
Console.WriteLine("Error = " + e.Message);
}
InvokeOnMainThread(delegate
{
//Dismiss the hud
hud.Hide(true);
hud.RemoveFromSuperview();
if (loggedInAccount == null)
{
Utilities.ShowAlert("Unable to Authenticate", "Unable to login as user " + username + ". Please check your credentials and try again.");
return;
}
var account = Application.Accounts.Find(loggedInAccount.Username);
//Account does not exist! Add it!
if (account == null)
{
account = loggedInAccount;
Application.Accounts.Insert(account);
}
//Account already exists. Update the password just incase it changed...
else
{
account.Password = Password.Text;
account.Update();
Application.SetUser(account);
}
if (LoginComplete != null)
LoginComplete(account);
});
}
