public static void ShowLoadingHUD(this UIView view, string title, Action <IProgressDelegate> action)
{
bool isCompleted = false;
Exception error = null;
// view.InvokeOnMainThread(
// () => {
var hudView = new LoadingHUDView(title, "processing");
var hudFrame = hudView.Frame;
hudFrame.Height += (float)(view.Window.Frame.GetMidY());
hudView.Frame = hudFrame;
view.Window.Add(hudView);
hudView.StartAnimating();
Tools.Threads.QueueAction(
() => {
try {
action(new ActionProgressDelegate((msg) => view.InvokeOnMainThread(() => hudView.Message = msg)));
} catch (Exception actionError) {
error = actionError;
} finally {
view.InvokeOnMainThread(
() => {
try {
hudView.StopAnimating();
hudView.RemoveFromSuperview();
} catch {
// ignore errors here
} finally {
isCompleted = true;
}
}
);
isCompleted = true;
}
}
);
// });
while (!isCompleted)
{
NSRunLoop.Current.RunUntil(NSDate.FromTimeIntervalSinceNow(0.2));
}
if (error != null)
{
SystemLog.Exception(error);
throw new SoftwareException(error, "An unexpected error occured in an asyncronous task");
}
}
void HandleButtonTouchUpInside(object sender, EventArgs e)
{
_hud.StartAnimating();
NSTimer.CreateScheduledTimer(TimeSpan.FromSeconds(5), (timer) => _hud.StopAnimating());
}