96 lines
2.5 KiB
Dart
96 lines
2.5 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:get/get.dart';
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class SearchSuggestModel {
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SearchSuggestModel({
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this.tag,
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this.term,
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});
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List<SearchSuggestItem>? tag;
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String? term;
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SearchSuggestModel.fromJson(Map<String, dynamic> json) {
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tag = json['tag']
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.map<SearchSuggestItem>(
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(e) => SearchSuggestItem.fromJson(e, json['term']))
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.toList();
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}
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}
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class SearchSuggestItem {
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SearchSuggestItem({
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this.value,
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this.term,
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this.spid,
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this.textRich,
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});
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String? value;
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String? term;
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int? spid;
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Widget? textRich;
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SearchSuggestItem.fromJson(Map<String, dynamic> json, String inputTerm) {
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value = json['value'];
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term = json['term'];
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textRich = highlightText(json['name']);
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}
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}
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Widget highlightText(String str) {
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// 创建正则表达式,匹配 <em class="suggest_high_light">...</em> 格式的文本
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RegExp regex = RegExp(r'<em class="suggest_high_light">(.*?)<\/em>');
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// 用于存储每个匹配项的列表
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List<InlineSpan> children = [];
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// 获取所有匹配项
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Iterable<Match> matches = regex.allMatches(str);
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// 当前索引位置
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int currentIndex = 0;
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// 遍历每个匹配项
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for (var match in matches) {
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// 获取当前匹配项之前的普通文本部分
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String normalText = str.substring(currentIndex, match.start);
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// 获取需要高亮显示的文本部分
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String highlightedText = match.group(1)!;
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// 如果普通文本部分不为空,则将其添加到 children 列表中
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if (normalText.isNotEmpty) {
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children.add(TextSpan(
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text: normalText,
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style: DefaultTextStyle.of(Get.context!).style,
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));
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}
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// 将需要高亮显示的文本部分添加到 children 列表中,并设置相应样式
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children.add(TextSpan(
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text: highlightedText,
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style: TextStyle(
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fontWeight: FontWeight.bold,
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color: Theme.of(Get.context!).colorScheme.primary),
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));
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// 更新当前索引位置
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currentIndex = match.end;
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}
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// 如果当前索引位置小于文本长度,表示还有剩余的普通文本部分
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if (currentIndex < str.length) {
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String remainingText = str.substring(currentIndex);
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// 将剩余的普通文本部分添加到 children 列表中
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children.add(TextSpan(
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text: remainingText,
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style: DefaultTextStyle.of(Get.context!).style,
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));
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}
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// 使用 Text.rich 创建包含高亮显示的富文本小部件,并返回
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return Text.rich(TextSpan(children: children));
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}
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