Flutter多条件搜索插件multi_search_flutter的使用

欢迎使用flutter multi_search 🙏

🎨 作者致谢

• 大量感谢：@Cuberto 提供了令人惊叹的设计：@设计
• 感谢：@Mert Şimşek 提供的灵感：@Android版本

✨ 示例

基本用法

MultiSearchView(
  onSelectItem: (value) {
    /// 当从一个项目切换到另一个时
  },
  onSearchComplete: (value) {
    /// 当按下键盘搜索按钮时
  },
  onDeleteAlternative: (value) {
    /// 当删除一个项目并切换到其他存在的项目时
  },
  onItemDeleted: (value) {
    /// 当删除一个项目时
  },
  onSearchCleared: () {
    /// 当所有搜索项被清除时
  },
)

配置选项

选择指示器形状（默认为线形）

searchIndicatorShape: SearchIndicatorShape.dot
/// 或
searchIndicatorShape: SearchIndicatorShape.line

设置指示器颜色

indicatorColor: Colors.purple

更改宽度（默认为屏幕宽度）

width: 150

更改图标颜色

iconColor: Colors.blue

更改删除项目的图标颜色

removeItemIconColor: Colors.black

设置提示文本

inputHint: 'type your text'

… 请检查类代码以获取更多选项

🤝 贡献

欢迎贡献、提交问题和功能请求。如果您想贡献，请查看[问题页面]。

作者

👤 Mejdi Hafiane

• Twitter: @MejdiHafiane

给予支持

如果这个项目对你有帮助，请给它点个星⭐️！

📝 许可证

版权所有 © 2021 Mejdi Hafiane

许可协议如下：

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

完整示例Demo

import 'dart:async';

import 'package:example/image_view.dart';
import 'package:flutter/material.dart';
import 'package:multi_search_flutter/multi_search_flutter.dart';
import 'package:multi_search_flutter/search_indicator_style_enum.dart';

import 'list_generator.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  [@override](/user/override)
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      debugShowCheckedModeBanner: false,
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  MyHomePage({Key? key, required this.title}) : super(key: key);

  final String title;

  [@override](/user/override)
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  late StreamController<List<ImageView>> _streamList;
  late List<ImageView> imagesList;

  [@override](/user/override)
  void initState() {
    super.initState();
    _streamList = StreamController<List<ImageView>>();
    imagesList = getImages();
    _streamList.sink.add(imagesList);
  }

  [@override](/user/override)
  Widget build(BuildContext context) {
    return Scaffold(
      body: SafeArea(
        top: true,
        child: Column(
          children: [
            Align(
                alignment: Alignment.centerLeft,
                child: Padding(
                  padding: const EdgeInsets.all(18.0),
                  child: Text(
                    'Explore',
                    style: TextStyle(fontWeight: FontWeight.bold, fontSize: 40),
                  ),
                )),
            SizedBox(
              height: 20,
            ),
            MultiSearchView(
              inputHint: 'type your text',
              onSelectItem: (value) {
                filterList(value);
              },
              onSearchComplete: (value) {
                filterList(value);
              },
              onDeleteAlternative: (value) {
                filterList(value);
              },
              onItemDeleted: (value) {
                print(value);
              },
              onSearchCleared: () {
                removeFilter();
              },
            ),
            SizedBox(
              height: 30,
            ),
            Expanded(
              child: StreamBuilder(
                  stream: _streamList.stream,
                  builder: (context, AsyncSnapshot<List<ImageView>>? snapshot) {
                    return ListView(
                        children: ((snapshot != null && snapshot.data != null)
                                ? ((snapshot.data?.isNotEmpty ?? false)
                                    ? (snapshot.data
                                        ?.map((e) => Container(
                                            height: 180,
                                            width: MediaQuery.of(context).size.width,
                                            child: e.image))
                                        .toList())
                                    : [])
                                : []) ??
                            []);
                  }),
            ),
          ],
        ),
      ),
    );
  }

  void filterList(value) {
    _streamList.sink.add(imagesList
        .where((element) => element.name?.contains(value) ?? false)
        .toList());
  }

  void removeFilter() {
    _streamList.sink.add(imagesList);
  }

  [@override](/user/override)
  void dispose() {
    _streamList.close();
    super.dispose();
  }
}