protected virtual NumberKeyListener GetDigitsKeyListener(InputTypes inputTypes)
{
// Override this in a custom renderer to use a different NumberKeyListener
// or to filter out input types you don't want to allow
// (e.g., inputTypes &= ~InputTypes.NumberFlagSigned to disallow the sign)
return(LocalizedDigitsKeyListener.Create(inputTypes));
}
void OnPromptRequested(Page sender, PromptArguments arguments)
{
// Verify that the page making the request is part of this activity
if (!PageIsInThisContext(sender))
{
return;
}
var alertDialog = new DialogBuilder(Activity).Create();
alertDialog.SetTitle(arguments.Title);
alertDialog.SetMessage(arguments.Message);
var frameLayout = new FrameLayout(Activity);
var editText = new EditText(Activity)
{
Hint = arguments.Placeholder, Text = arguments.InitialValue
};
var layoutParams = new FrameLayout.LayoutParams(ViewGroup.LayoutParams.MatchParent, ViewGroup.LayoutParams.WrapContent)
{
LeftMargin = (int)(22 * Activity.Resources.DisplayMetrics.Density),
RightMargin = (int)(22 * Activity.Resources.DisplayMetrics.Density)
};
editText.LayoutParameters = layoutParams;
editText.InputType = arguments.Keyboard.ToInputType();
if (arguments.Keyboard == Keyboard.Numeric)
{
editText.KeyListener = LocalizedDigitsKeyListener.Create(editText.InputType);
}
if (arguments.MaxLength > -1)
{
editText.SetFilters(new IInputFilter[] { new InputFilterLengthFilter(arguments.MaxLength) });
}
frameLayout.AddView(editText);
alertDialog.SetView(frameLayout);
alertDialog.SetButton((int)DialogButtonType.Positive, arguments.Accept, (o, args) => arguments.SetResult(editText.Text));
alertDialog.SetButton((int)DialogButtonType.Negative, arguments.Cancel, (o, args) => arguments.SetResult(null));
alertDialog.SetCancelEvent((o, args) => { arguments.SetResult(null); });
alertDialog.Window.SetSoftInputMode(SoftInput.StateVisible);
alertDialog.Show();
editText.RequestFocus();
}