TextBlock Tips = mainWindow.FindName("imgTips") as TextBlock;
Tips.Inlines.Clear();
Tips.Inlines.Add(FormatText(info.Tips));
static Color backColor = (Color)ColorConverter.ConvertFromString("#6AAEF2");
static Dictionary<string, Func<string, Run>> keywords = new Dictionary<string, Func<string, Run>>()
{
{"step 01.", s => new Run(s){Foreground = new SolidColorBrush(backColor)}},
{"step 02.", s => new Run(s){Foreground = new SolidColorBrush(backColor)}},
{"step 03.", s => new Run(s){Foreground = new SolidColorBrush(backColor)}},
{"step 04.", s => new Run(s){Foreground = new SolidColorBrush(backColor)}},
{"视频下载", s => new Run(s){Foreground = new SolidColorBrush(backColor)}},
{"视频播放", s => new Run(s){Foreground = new SolidColorBrush(backColor)}},
{"视频提取", s => new Run(s){Foreground = new SolidColorBrush(backColor)}},
};
static Inline FormatText(string text)
{
Span span = new Span();
int startIndex = 0;
while (true)
{
var hit = keywords.Keys.Select(k => new { word = k, index = text.IndexOf(k, startIndex) }).OrderBy(x => (uint)x.index).FirstOrDefault();
if (hit.index < 0)
{
span.Inlines.Add(new Run(text.Substring(startIndex)));
break;
}
span.Inlines.Add(new Run(text.Substring(startIndex, hit.index - startIndex)));
span.Inlines.Add(keywords[hit.word](hit.word));
startIndex = hit.index + hit.word.Length;
}
return span;
}
WPF中让TextBlock每一个字符显示不同的颜色
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