public void BeginDispatchOnUIThread(Action action)
{
if (Ctrl != null)
{
Ctrl.BeginInvokeOnMainThread(() => action());
}
}
private void StartOnAddContactAction(UINavigationController navigationController, User user)
{
AddressBook book = new AddressBook ();
book.RequestPermission ().ContinueWith (task => {
navigationController.BeginInvokeOnMainThread (delegate {
if (task.IsFaulted || task.IsCanceled || !task.Result)
{
ShowNoContactAccess ();
}
else
{
_canAccessAddress = true;
CheckForExistingAndContinue (navigationController, user, false);
}
});
},TaskScheduler.FromCurrentSynchronizationContext());
}
private void CheckForExistingAndContinue(UINavigationController navigationController,
User user, bool mainThreadRequired)
{
KeyValuePair <string, string> namePair = GetFirstAndLastName (user);
string firstName = namePair.Key;
string lastName = namePair.Value;
AddressBook book = new AddressBook ();
foreach (Contact contact in book)
{
if (contact.FirstName == firstName &&
contact.LastName == lastName)
{
if (!mainThreadRequired)
AskShouldAddDuplicateAndContinue (navigationController, user);
else
{
navigationController.BeginInvokeOnMainThread (delegate {
AskShouldAddDuplicateAndContinue (navigationController, user);
});
}
return;
}
}
if (!mainThreadRequired)
ShowAddContactController (navigationController, user);
else
{
navigationController.BeginInvokeOnMainThread (delegate {
ShowAddContactController (navigationController, user);
});
}
}
