private void UpdateFormattedText()
{
if (Element?.FormattedText == null)
{
return;
}
var extensionType = typeof(FormattedStringExtensions);
var type = extensionType.GetNestedType("FontSpan", BindingFlags.NonPublic);
var ss = new SpannableString(Control.TextFormatted);
var spans = ss.GetSpans(0, ss.ToString().Length, Class.FromType(type));
foreach (var span in spans)
{
var font = (Font)type.GetProperty("Font").GetValue(span, null);
if ((font.FontFamily ?? Element.FontFamily) != null)
{
var start = ss.GetSpanStart(span);
var end = ss.GetSpanEnd(span);
var flags = ss.GetSpanFlags(span);
ss.RemoveSpan(span);
var newSpan = new CustomTypefaceSpan(Control, Element, font);
ss.SetSpan(newSpan, start, end, flags);
}
}
Control.TextFormatted = ss;
}