// Using Native Friend Picker Controller
void FriendPicker ()
{
var friendController = new FBFriendPickerViewController () {
Title = "Pick some friends"
};
friendController.LoadData ();
friendController.PresentModallyFromViewController (this, true, (sender, donePressed) => {
if (!donePressed)
InvokeOnMainThread (() => new UIAlertView ("Error", "User canceled.", null, "Ok", null).Show ());
else {
var ctrl = sender as FBFriendPickerViewController;
foreach (var friend in ctrl.Selection)
Console.WriteLine (friend.GetName ());
InvokeOnMainThread (() => new UIAlertView ("Success", "You Picked " + ctrl.Selection.Count () + " friend(s)", null, "Ok", null).Show ());
}
});
}
// Pick Friends button handler
partial void pickFriendsClick(NSObject sender)
{
Console.WriteLine("pickFriendsClick");
FBFriendPickerViewController friendPickerController = new FBFriendPickerViewController();
friendPickerController.Title = @"Pick Friends";
friendPickerController.LoadData();
friendPickerController.PresentModally(this, true, delegate(FBViewController sender2, bool donePressed) {
if (!donePressed) {
return;
}
string message;
if (friendPickerController.Selection.Count == 0)
{
message = @"<No Friends Selected>";
}
else
{
//string text = "";
StringBuilder text = new StringBuilder();
// we pick up the users from the selection, and create a string that we use to update the text view
// at the bottom of the display; note that self.selection is a property inherited from our base class
for (uint i = 0; i < friendPickerController.Selection.Count; ++i)
{
if (text.Length > 0)
{
text.Append(@", ");
}
FBGraphObject user = (FBGraphObject)Runtime.GetNSObject(friendPickerController.Selection.ValueAt(i));
text.Append(user.ObjectForKey(new NSString("name")).ToString());
}
message = text.ToString();
}
UIAlertView alert = new UIAlertView("You Picked:", message, null, "Ok", null);
alert.Show();
});
}