public Task <ContactInfo> GetSelectedContactInfo()
{
var picker = new CNContactPickerViewController()
{
DisplayedPropertyKeys = new NSString[] { CNContactKey.GivenName, CNContactKey.FamilyName }
};
// Set up Contact Picker Delegate, TaskCompletionSource wrapper.
var tcs = new TaskCompletionSource <ContactInfo>();
var pickerDelegate = new ContactPickerDelegate();
picker.Delegate = pickerDelegate;
pickerDelegate.ContactSelected += (contact) =>
{
tcs.TrySetResult(new ContactInfo {
Id = contact.Identifier, FamilyName = contact.FamilyName, AdditionalName = contact.MiddleName, GivenName = contact.GivenName
});
};
pickerDelegate.SelectionCanceled += () =>
{
tcs.TrySetResult(null);
};
// Display as modal dialog on current ViewController
UIWindow window = UIApplication.SharedApplication.KeyWindow;
UIViewController viewController = window.RootViewController;
if (viewController == null)
{
while (viewController.PresentedViewController != null)
{
viewController = viewController.PresentedViewController;
}
}
viewController.PresentViewController(picker, true, null);
return(tcs.Task);
}
public Task<ContactInfo> GetSelectedContactInfo()
{
var picker = new CNContactPickerViewController()
{
DisplayedPropertyKeys = new NSString[] { CNContactKey.GivenName, CNContactKey.FamilyName }
};
// Set up Contact Picker Delegate, TaskCompletionSource wrapper.
var tcs = new TaskCompletionSource<ContactInfo>();
var pickerDelegate = new ContactPickerDelegate();
picker.Delegate = pickerDelegate;
pickerDelegate.ContactSelected += (contact) =>
{
tcs.TrySetResult(new ContactInfo { Id = contact.Identifier, FamilyName = contact.FamilyName, AdditionalName = contact.MiddleName, GivenName = contact.GivenName });
};
pickerDelegate.SelectionCanceled += () =>
{
tcs.TrySetResult(null);
};
// Display as modal dialog on current ViewController
UIWindow window = UIApplication.SharedApplication.KeyWindow;
UIViewController viewController = window.RootViewController;
if (viewController == null)
{
while (viewController.PresentedViewController != null)
viewController = viewController.PresentedViewController;
}
viewController.PresentViewController(picker, true, null);
return tcs.Task;
}
