public static void InitializeAttributes(this IElement element, IAttributeSet attrs)
{
if (element is View view && view.Id > 0)
{
element.ID = DroidFactory.MainActivity.Resources.GetResourceEntryName(view.Id);
}
if (attrs == null)
{
return;
}
const int adj = Element.AutoLayoutIndex + 1;
var column = attrs.GetAttributeIntValue(XmlNamespace, "column", adj);
if (column > adj)
{
element.ColumnIndex = column - 1;
}
var columnSpan = attrs.GetAttributeIntValue(XmlNamespace, "columnSpan", 1);
if (columnSpan > 1)
{
element.ColumnSpan = columnSpan;
}
var row = attrs.GetAttributeIntValue(XmlNamespace, "row", adj);
if (row > adj)
{
element.RowIndex = row - 1;
}
var rowSpan = attrs.GetAttributeIntValue(XmlNamespace, "rowSpan", 1);
if (rowSpan > 1)
{
element.RowSpan = rowSpan;
}
var hAligns = Enum.GetNames(typeof(HorizontalAlignment)).Select(h => h.ToLower()).ToArray();
var horizontalAlignment = attrs.GetAttributeListValue(XmlNamespace, "horizontalAlignment", hAligns, 0);
if (horizontalAlignment > 0)
{
element.HorizontalAlignment = (HorizontalAlignment)horizontalAlignment;
}
var vAligns = Enum.GetNames(typeof(VerticalAlignment)).Select(v => v.ToLower()).ToArray();
var verticalAlignment = attrs.GetAttributeListValue(XmlNamespace, "verticalAlignment", vAligns, 0);
if (verticalAlignment > 0)
{
element.VerticalAlignment = (VerticalAlignment)verticalAlignment;
}
var visibles = Enum.GetNames(typeof(Visibility)).Select(v => v.ToLower()).ToArray();
var visibility = attrs.GetAttributeListValue(XmlNamespace, "visibility", visibles, 0);
if (visibility > 0)
{
element.Visibility = (Visibility)visibility;
}
string font = attrs.GetAttributeValue(XmlNamespace, "font");
if (font != null)
{
var fontProp = Device.Reflector.GetProperty(typeof(Font), font);
if (fontProp != null)
{
var value = fontProp.GetValue(Font.PreferredLabelFont);
Device.Reflector.GetProperty(element.GetType(), "Font")?.SetValue(element, value);
}
else
{
var defaults = MXContainer.Resolve <IPlatformDefaults>(typeof(IPlatformDefaults));
var defaultsProp = Device.Reflector.GetProperty(defaults.GetType(), font);
if (defaultsProp != null)
{
var value = defaultsProp.GetValue(defaults);
Device.Reflector.GetProperty(element.GetType(), "Font")?.SetValue(element, value);
}
}
}
element.SetColor(attrs, "BackgroundColor");
element.SetColor(attrs, "ForegroundColor");
var margin = attrs.GetAttributeValue(XmlNamespace, "margin");
if (!string.IsNullOrEmpty(margin))
{
var padValues = margin.Split(',').Select(p => p.TryParseDouble()).ToList();
switch (padValues.Count)
{
case 1:
element.Margin = new Thickness(padValues[0]);
break;
case 2:
element.Margin = new Thickness(padValues[0], padValues[1]);
break;
case 4:
element.Margin = new Thickness(padValues[0], padValues[1], padValues[2], padValues[3]);
break;
default:
throw new FormatException("Invalid margin format: " + margin);
}
}
var left = ParseThickness(attrs, "marginLeft", (int)element.Margin.Left);
var top = ParseThickness(attrs, "marginTop", (int)element.Margin.Top);
var right = ParseThickness(attrs, "marginRight", (int)element.Margin.Right);
var bottom = ParseThickness(attrs, "marginBottom", (int)element.Margin.Bottom);
element.Margin = new Thickness(left, top, right, bottom);
var submitKey = attrs.GetAttributeValue(XmlNamespace, "submitKey");
if (submitKey != null && element is IControl control)
{
control.SubmitKey = submitKey;
}
}