private void Control_Click(object sender, EventArgs e)
{
Picker model = Element;
CustomNumberPicker picker = new CustomNumberPicker(Context);
picker.TextColor = (Element as BetterPicker).PopupTextColor.ToAndroid();
picker.ValueChanged += SelectionChanged;
if (model.Items != null && model.Items.Any())
{
picker.MaxValue = model.Items.Count - 1;
picker.MinValue = 0;
picker.SetBackgroundColor((Element as BetterPicker).PopupBackground.ToAndroid());
picker.SetDisplayedValues(model.Items.ToArray());
picker.TextColor = (Element as BetterPicker).PopupTextColor.ToAndroid();
SetPickerDividerColor(picker, (Element as BetterPicker).PopupTextColor.ToAndroid());
picker.WrapSelectorWheel = false;
picker.Value = model.SelectedIndex;
}
LinearLayout layout = new LinearLayout(Context)
{
Orientation = Orientation.Vertical
};
layout.SetBackgroundColor((Element as BetterPicker).PopupBackground.ToAndroid());
layout.AddView(picker);
ElementController.SetValueFromRenderer(VisualElement.IsFocusedProperty, true);
AlertDialog.Builder builder = new AlertDialog.Builder(Context);
builder.SetView(layout);
builder.SetTitle(model.Title ?? "");
_dialog = builder.Create();
Android.Widget.Button Button = _dialog.GetButton((int)DialogButtonType.Positive);
if (Button != null)
{
Button.SetTextColor((Element as BetterPicker).PopupTextColor.ToAndroid());
}
Button = _dialog.GetButton((int)DialogButtonType.Negative);
if (Button != null)
{
Button.SetTextColor((Element as BetterPicker).PopupTextColor.ToAndroid());
}
Button = _dialog.GetButton((int)DialogButtonType.Neutral);
if (Button != null)
{
Button.SetTextColor((Element as BetterPicker).PopupTextColor.ToAndroid());
}
_dialog.Window.SetBackgroundDrawable(new ColorDrawable((Element as BetterPicker).PopupBackground.ToAndroid()));
_dialog.DismissEvent += (ssender, args) =>
{
ElementController?.SetValueFromRenderer(VisualElement.IsFocusedProperty, false);
};
_dialog.Show();
}
private void SetPickerDividerColor(CustomNumberPicker picker, Android.Graphics.Color color)
{
Java.Lang.Reflect.Field[] fields = picker.Class.GetDeclaredFields();
foreach (Java.Lang.Reflect.Field pf in fields)
{
if (pf.Name.Equals("mSelectionDivider"))
{
pf.Accessible = true;
// set the color as transparent
pf.Set(picker, new ColorDrawable(color));
}
}
}
