private static void labelMarginPropertyPropertyChanged(BindableObject bindable, object oldValue, object newValue)
{
BindableRadioGroupView target = bindable as BindableRadioGroupView;
foreach (BindableRadioButton btn in target.radioButtons)
{
btn.LabelMargin = newValue.ToString();
}
}
private static void fontAttributesPropertyChanged(BindableObject bindable, object oldValue, object newValue)
{
BindableRadioGroupView target = bindable as BindableRadioGroupView;
foreach (BindableRadioButton btn in target.radioButtons)
{
btn.FontAttributes = newValue.ToString();
}
}
private static void CheckBoxColorPropertyChanged(BindableObject bindable, object oldValue, object newValue)
{
BindableRadioGroupView target = bindable as BindableRadioGroupView;
foreach (BindableRadioButton btn in target.radioButtons)
{
btn.CheckBoxColor = (Xamarin.Forms.Color)newValue;
}
}
private static void fontSizePropertyChanged(BindableObject bindable, object oldValue, object newValue)
{
BindableRadioGroupView target = bindable as BindableRadioGroupView;
if (double.TryParse(newValue.ToString(), out double tmp))
{
foreach (BindableRadioButton btn in target.radioButtons)
{
btn.FontSize = tmp;
}
}
}
private static void selectedNoPropertyChanged(BindableObject bindable, object oldValue, object newValue)
{
BindableRadioGroupView group = bindable as BindableRadioGroupView;
if (oldValue == null && group.radioButtons != null)
{
int no;
if (int.TryParse(newValue.ToString(), out no) && no > 0)
{
int index = no - 1;
group.radioButtons[index].IsChecked = true;
}
}
}
private static void displayPathChanged(BindableObject bindable, object oldValue, object newValue)
{
BindableRadioGroupView target = bindable as BindableRadioGroupView;
if (target.radioButtons == null)
{
return;
}
foreach (var item in target.radioButtons)
{
string displayPath = newValue.ToString();
item.SetTextBinding(displayPath);
}
}
private static void ItemsSourcePropertyChanged(BindableObject bindable, IEnumerable oldValue, IEnumerable newValue)
{
BindableRadioGroupView group = bindable as BindableRadioGroupView;
group.radioButtons.Clear();
group.Children.Clear(); // StackLayout
if (newValue != null)
{
int radIndex = 0;
foreach (var item in newValue)
{
var rad = new BindableRadioButton();
rad.Id = radIndex;
rad.BindingContext = item;
rad.CheckedChanged += group.OnCheckedChanged;
group.radioButtons.Add(rad);
group.Children.Add(rad); // StackLayout
radIndex++;
}
sSetGroupViewUIProperty(group);
#region 设置默认选中项
if (group.SelectedText != null)
{
var match = group.radioButtons.FirstOrDefault(i => i.Text == group.SelectedText.ToString());
if (match != null)
{
match.IsChecked = true;
}
}
else if (int.TryParse(group.SelectedNo.ToString(), out int no) && no > 0)
{
if (no >= 1)
{
int index = no - 1;
group.radioButtons[index].IsChecked = true;
}
}
#endregion
}
}
private static void selectedTextPropertyChanged(BindableObject bindable, object oldValue, object newValue)
{
BindableRadioGroupView group = bindable as BindableRadioGroupView;
if (oldValue == null && group.radioButtons != null)
{
foreach (BindableRadioButton item in group.radioButtons)
{
if (item.Text == newValue.ToString())
{
item.IsChecked = true;
break;
}
}
}
}
private static void sSetGroupViewUIProperty(BindableRadioGroupView view)
{
if (view.radioButtons == null || view.radioButtons.Count <= 0)
{
return;
}
foreach (var rad in view.radioButtons)
{
if (view.DisplayPath.IsNullOrWhiteSpace() == false)
{
rad.SetTextBinding(view.DisplayPath);
}
if (view.CheckBoxColor != Xamarin.Forms.Color.Transparent)
{
rad.CheckBoxColor = view.CheckBoxColor;
}
if (view.TextColor != Xamarin.Forms.Color.Transparent)
{
rad.TextColor = view.TextColor;
}
if (view.CheckBoxMargin.IsNullOrWhiteSpace() == false)
{
rad.CheckBoxMargin = view.CheckBoxMargin;
}
if (view.LabelMargin.IsNullOrWhiteSpace() == false)
{
rad.LabelMargin = view.LabelMargin;
}
if (view.FontAttributes.IsNullOrWhiteSpace() == false)
{
rad.FontAttributes = view.FontAttributes;
}
if (view.FontSize > 0)
{
rad.FontSize = view.FontSize;
}
}
}