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;
}
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;
}
public PickerOptionQuestionInputView(OptionQuestion question, SurveyPageAppearance appearance)
: base(appearance)
{
var picker = new OptionValuePicker ();
picker.HorizontalOptions = LayoutOptions.StartAndExpand;
picker.VerticalOptions = LayoutOptions.CenterAndExpand;
picker.PlaceholderText = question.Text;
picker.BindingContext = question;
picker.ItemsSource = question.OptionValues;
picker.SetBinding (OptionValuePicker.ValueProperty, new Binding ("SelectedOption", BindingMode.TwoWay));
Content = picker;
}
public SliderQuantityQuestionInputView(SliderQuantityQuestion question, SurveyPageAppearance appearance)
: base(appearance)
{
_question = question;
var vStack = new StackLayout {
Orientation = StackOrientation.Vertical,
HorizontalOptions = LayoutOptions.FillAndExpand,
VerticalOptions = LayoutOptions.Fill
};
var valueStack = new StackLayout {
Orientation = StackOrientation.Horizontal,
HorizontalOptions = LayoutOptions.FillAndExpand,
VerticalOptions = LayoutOptions.Fill,
IsVisible = false
};
if (question.IsValueVisible) {
_valueLabel = BuildValueLabel (question);
valueStack.Children.Add (_valueLabel);
valueStack.IsVisible = true;
UpdateValueLabel ();
}
if (question.HasUnitOptions) {
_picker = BuildUnitPicker (question);
valueStack.Children.Add (_picker);
valueStack.IsVisible = true;
}
var sliderStack = new StackLayout {
Orientation = StackOrientation.Horizontal,
HorizontalOptions = LayoutOptions.FillAndExpand,
VerticalOptions = LayoutOptions.Fill
};
_labelledSlider = new LabelledSlider {
HorizontalOptions = LayoutOptions.FillAndExpand,
VerticalOptions = LayoutOptions.Center
};
if (question.Labels != null && question.Labels.Any ()) {
_labelledSlider.Labels.Items = question.Labels;
} else {
_labelledSlider.Labels.IsVisible = false;
}
sliderStack.Children.Add (_labelledSlider);
vStack.Children.Add (valueStack);
vStack.Children.Add (sliderStack);
UpdateUI ();
// set event handlers AFTER populating
_question.PropertyChanged += Question_PropertyChanged;
_labelledSlider.Slider.PropertyChanged += Slider_PropertyChanged;
if (_picker != null) {
_picker.PropertyChanged += Picker_PropertyChanged;
}
HeightRequest = -1;
Content = vStack;
}