private void SetStyle()
{
var styledLabel = (ExtendedLabel)this.Element;
if (styledLabel.Children != null && styledLabel.Children.Count > 0)
{
SpannableStringBuilder builder = new SpannableStringBuilder();
styledLabel.Children.ToList().ForEach(child =>
{
var spannableText = new SpannableString(child.Text);
spannableText.SetSpan(new ForegroundColorSpan(child.CustomFont.Color.ToAndroid()), 0, child.Text.Length, SpanTypes.Composing);
spannableText.SetSpan(new CustomTypefaceSpan(child.CustomFont), 0, child.Text.Length, SpanTypes.Composing);
if (child.Command != null)
{
var clickableSpan = new CustomClickableSpan();
clickableSpan.Click += (Android.Views.View obj) =>
{
child.Command?.Execute(child.CommandParameter);
};
spannableText.SetSpan(clickableSpan, 0, child.Text.Length, SpanTypes.Composing);
}
builder.Append(spannableText);
});
Control.TextFormatted = builder;
Control.MovementMethod = new LinkMovementMethod();
return;
}
if (styledLabel.Text != null && styledLabel.CustomFont != null)
{
styledLabel.CustomFont.ApplyTo(Control);
}
}
private static void FormatImages(Context context, ISpannable spannable)
{
var text = spannable?.ToString();
if (string.IsNullOrWhiteSpace(text))
{
return;
}
var matches = ImageRegex.Matches(text);
foreach (var match in matches.ToList())
{
var drawable = ContextCompat.GetDrawable(context, PlaceholderImage);
drawable.SetBounds(0, 0, drawable.IntrinsicWidth, drawable.IntrinsicHeight);
var imageSpan = new ImageSpan(drawable, SpanAlign.Baseline);
var clickSpan = new CustomClickableSpan();
clickSpan.Click += (sender, e) =>
{
var intent = new Intent(Intent.ActionView,
Android.Net.Uri.Parse(match.Groups[2].Value));
context.StartActivity(intent);
};
spannable.SetSpan(clickSpan, match.Index, match.Index + match.Length,
SpanTypes.InclusiveExclusive);
spannable.SetSpan(imageSpan, match.Index, match.Index + match.Length,
SpanTypes.InclusiveExclusive);
if (!int.TryParse(match.Groups[1].Value, out var width))
{
width = 250;
}
width = Math.Min(width, MaxImageWidth);
Picasso.With(context).Load(match.Groups[2].Value)
.Into(new DrawableTarget(spannable, match.Index, match.Index + match.Length, (int)(width * context.Resources.DisplayMetrics.Density)));
}
}
private static void FormatYoutube(Context context, ISpannable spannable)
{
var text = spannable?.ToString();
if (string.IsNullOrWhiteSpace(text))
{
return;
}
var matches = YoutubeRegex.Matches(text);
var playIcon = ContextCompat.GetDrawable(context, Resource.Drawable.svg_play);
playIcon.SetColorFilter(Color.White, PorterDuff.Mode.SrcIn);
playIcon.SetAlpha(150);
foreach (var match in matches.ToList())
{
var drawable = ContextCompat.GetDrawable(context, PlaceholderImage);
drawable.SetBounds(0, 0, drawable.IntrinsicWidth, drawable.IntrinsicHeight);
var imageSpan = new ImageSpan(drawable, SpanAlign.Baseline);
var clickSpan = new CustomClickableSpan();
clickSpan.Click += (sender, e) =>
{
var intent = new Intent(Intent.ActionView,
Android.Net.Uri.Parse(string.Format(YoutubeLinkUrl, match.Groups[1].Value)));
context.StartActivity(intent);
};
spannable.SetSpan(clickSpan, match.Index, match.Index + match.Length,
SpanTypes.InclusiveExclusive);
spannable.SetSpan(imageSpan, match.Index, match.Index + match.Length,
SpanTypes.InclusiveExclusive);
Picasso.With(context).Load(string.Format(YoutubeThumbnailUrl, match.Groups[1].Value))
.Into(new DrawableTarget(spannable, match.Index, match.Index + match.Length,
(int)(250 * context.Resources.DisplayMetrics.Density), playIcon));
}
}
