public NumericEntryQuantityQuestionInputView(QuantityQuestion question, SurveyPageAppearance appearance)
: base(appearance)
{
_question = question;
var stackLayout = new StackLayout {
HorizontalOptions = LayoutOptions.FillAndExpand,
VerticalOptions = LayoutOptions.FillAndExpand,
Orientation = StackOrientation.Horizontal,
Spacing = 10
};
_entry = BuildValueEntry (question);
stackLayout.Children.Add (_entry);
if (question.HasUnitOptions) {
_picker = BuildUnitPicker (question);
stackLayout.Children.Add (_picker);
}
SetUIFromResponse ();
// set event handlers AFTER populating
_question.PropertyChanged += Question_PropertyChanged;
_entry.TextChanged += Entry_TextChanged;
if (_picker != null) {
_picker.PropertyChanged += Picker_PropertyChanged;
}
Content = stackLayout;
}
GBEntry BuildValueEntry(QuantityQuestion question)
{
var entry = new GBEntry {
Placeholder = question.Text,
HorizontalOptions = LayoutOptions.StartAndExpand,
VerticalOptions = LayoutOptions.CenterAndExpand,
Keyboard = Keyboard.Numeric
};
return entry;
}
protected virtual OptionValuePicker BuildUnitPicker(QuantityQuestion question)
{
var picker = new OptionValuePicker {
HorizontalOptions = LayoutOptions.End,
VerticalOptions = LayoutOptions.CenterAndExpand,
PlaceholderText = "Unit",
ItemsSource = question.UnitOptions
};
picker.Value = question.UnitOptions.FirstOrDefault (x => x.Value == question.DefaultUnit);
return picker;
}
protected virtual Label BuildValueLabel(QuantityQuestion question)
{
var label = new Label {
HorizontalOptions = LayoutOptions.End,
VerticalOptions = LayoutOptions.CenterAndExpand
};
return label;
}