Flutter列表过滤插件flutter_listfilter的使用

Contents

flutter_listfilter 是一个用于在Flutter应用中基于列表进行过滤的插件。它提供了以下功能：

• Auto-suggestions: 根据提供的列表动态加载过滤选项。
• Easy Integration: 可以无缝集成到Flutter应用中。
• Customization: 可以自定义主色调、线条颜色等视觉元素，使其与应用程序的设计相匹配。
• Efficient Filtering: 快速筛选出所需的选项。

在使用该插件之前，请确保在您的 Module 类中添加 toJson 方法，以便获取关键参数和值。

示例 toJson 方法

class TextList {
  final String fields;
  final String doc;
  final String createDate;
  final String updateDate;
  final String updatedBy;

  TextList(
      this.fields, this.doc, this.createDate, this.updateDate, this.updatedBy);

  Map<String, dynamic> toJson() {
    final Map<String, dynamic> data = <String, dynamic>{};
    data['fields'] = fields;
    data['doc'] = doc;
    data['createDate'] = createDate;
    data['updateDate'] = updateDate;
    data['updatedBy'] = updatedBy;
    return data;
  }

  dynamic get(String key) {
    var mapRep = toJson();
    if (mapRep.containsKey(key)) {
      return mapRep[key];
    }
    //throw ArgumentError('filter=>getTaskTableList=>key not found=>$key');
  }
}

Example

您可以根据需要使用自己的小部件或不传递小部件。

使用示例

基本用法

import 'package:flutter/material.dart';
import 'package:flutter_listfilter/flutter_listfilter.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primaryColor: Colors.blue,
        useMaterial3: true,
      ),
      home: FilterPage(),
    );
  }
}

class FilterPage extends StatefulWidget {
  @override
  _FilterPageState createState() => _FilterPageState();
}

class _FilterPageState extends State<FilterPage> {
  List<TextList> textList = [
    TextList("field1", "doc1", "2024-01-01", "2024-01-02", "user1"),
    TextList("field2", "doc2", "2024-01-03", "2024-01-04", "user2"),
    // Add more items as needed
  ];

  List<String> filterHeaderList = ["Fields", "Document"];

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Flutter List Filter Example'),
      ),
      body: Padding(
        padding: const EdgeInsets.all(8.0),
        child: FlutterListFilter(
          isRadio: true, // Use radio buttons or checkboxes
          primaryColor: Colors.blue,
          lineColor: Color(0xFFA9B5BB),
          textList: textList,
          filterHeaderList: filterHeaderList,
          builder: (List<dynamic> textLoadList) {
            return ListView.builder(
              itemCount: textLoadList.length,
              itemBuilder: (context, index) {
                var item = textLoadList[index];
                return ListTile(
                  title: Text(item.fields),
                  subtitle: Text(item.doc),
                );
              },
            );
          },
        ),
      ),
    );
  }
}

使用单选按钮（Radio Button）

FlutterListFilter(
  isRadio: true,
  primaryColor: Colors.blue,
  lineColor: Color(0xFFA9B5BB),
  textList: textList,
  filterHeaderList: filterHeaderList,
  builder: (List<dynamic> textLoadList) {
    // Your code here
  },
)

使用复选框（Checkbox）

FlutterListFilter(
  isRadio: false,
  primaryColor: Colors.blue,
  lineColor: Color(0xFFA9B5BB),
  textList: textList,
  filterHeaderList: filterHeaderList,
  builder: (List<dynamic> textLoadList) {
    // Your code here
  },
)

通过以上示例，您可以看到如何使用 flutter_listfilter 插件来实现列表过滤功能。请根据实际需求调整代码中的参数和逻辑，以满足具体的应用场景。