Flutter学习之模糊搜索关键字与返回内容对应高亮封装

class SearchUtils {
 static TextStyle _active = TextStyle(
   color: RcTheme.rcColor.primary00CCA9,
   fontSize:RcTheme.rcColor.fontSize18,
 );
 static TextStyle _off = TextStyle(
   color: RcTheme.rcColor.primary303133,
   fontSize:RcTheme.rcColor.fontSize18,
 );
  /// 获取高亮关键字文本
  static List<InlineSpan> getTitle(String source, String keyword, {TextStyle activeStyle,TextStyle offStyle}) {
    print("activeStyle = $activeStyle");
    activeStyle = activeStyle??_active;
    offStyle = offStyle??_off;
    List<InlineSpan> list = [];
    List<String> sourceList = [];
    List<String> temp = source?.split(keyword);
    temp?.forEach((s) {
      sourceList.add(s);
      sourceList.add(keyword);
    });
    if (sourceList.length > 0) sourceList.removeLast();
    sourceList?.forEach((v) {
      if(v.isEmpty) {
        return;
      }
      if (v == keyword) {
        list.add(TextSpan(
            text: keyword,
            style: activeStyle
        ),);
      } else {
        list.add(TextSpan(
            text: v,
            style: offStyle
        ),);
      }
    });
    return list;
  }
}