public void TokenTextFieldDeleteBackward(TokenTextField tokenTextField)
{
if (_canNotDeletedToken)
{
_canNotDeletedToken = false;
}
else
{
bool removeTokenButton = false;
foreach (TokenButton tokenButton in _tokens)
{
if (tokenButton._toggled)
{
RemoveTokenForTitle(tokenButton);
removeTokenButton = true;
break;
}
}
if (!removeTokenButton)
{
// Highlight last token button
if (_tokens.Count > 0)
{
TokenButton tokenButtonHighlight = _tokens[_tokens.Count - 1];
if (tokenButtonHighlight != null)
{
tokenButtonHighlight.SetToggled(true);
}
}
}
}
}
void CommonSetup()
{
_tokens = new List <TokenButton>();
if (Frame.Height < (DEFAULT_HEIGHT + HEIGHT_PADDING * 2))
{
CGRect newFrame = Frame;
newFrame.Height = DEFAULT_HEIGHT + HEIGHT_PADDING * 2;
Frame = newFrame;
}
CGRect frame = Frame;
frame.Y += HEIGHT_PADDING;
frame.Height -= HEIGHT_PADDING * 2;
_textField = new TokenTextField(frame);
_textField.TokenDelegate = this;
_textField.BorderStyle = UITextBorderStyle.None;
_textField.BackgroundColor = UIColor.Clear;
_textField.VerticalAlignment = UIControlContentVerticalAlignment.Center;
AddSubview(_textField);
_textField.ShouldReturn += TextFieldShouldReturn;
_textField.ShouldBeginEditing = (UITextField textField) =>
{
_canNotDeletedToken = false;
return(true);
};
_textField.ShouldChangeCharacters = (textField, range, replacementString) =>
{
_canNotDeletedToken = true;
return(true);
};
}