public static void SelectContactAddress(Action<string, Exception> addressSelected)
{
var task = new AddressChooserTask();
task.Completed += (s, e) => addressSelected.ExecuteIfNotNull(e.Address, e.Error);
task.Show();
}
/// <summary>
/// Invokes the given action on a background thread
/// </summary>
/// <param name="work">An action executed without UI access</param>
/// <param name="onCompleted">An action executed on the UI thread after work is completed</param>
public static void RunWorker(Action work, Action onCompleted)
{
// Don't do anything if the work action is empty
if (work == null)
{
return;
}
if (IsRunningOnUIThread)
{
// Spawn new thread only if UI is active
ThreadPool.QueueUserWorkItem(
workAction =>
{
((Action) workAction)();
InvokeAsync(onCompleted);
},
work
);
}
else
{
// Otherwise, just execute in linear fashion
work();
onCompleted.ExecuteIfNotNull();
}
}