Flutter选择对话框插件selection_dialogs的使用

特性

• 国家选择对话框
• 语言选择对话框

开始使用

首先，确保已将插件添加到您的 pubspec.yaml 文件中：

dependencies:
  selection_dialogs: ^版本号

然后运行以下命令以获取依赖项：

flutter pub get

使用方法

1. 国家选择对话框

通过 CountrySelector 显示国家选择对话框，并在用户选择国家后触发回调。

showDialog(
  context: context,
  builder: (BuildContext context) {
    return CountrySelector(
      onTap: (Country country) {
        print("${country.name}---${country.isoCode}");
      },
    );
  },
);

2. 语言选择对话框

通过 LanguageSelector 显示语言选择对话框，并在用户选择语言后触发回调。

showDialog(
  context: context,
  builder: (BuildContext context) {
    return LanguageSelector(
      onTap: (LanguageData item) {
        print("${item.name}---${item.locale}---${item.flag}---${item.nativeName}");
        // Navigator.pop(context);
      },
    );
  },
);

完整示例代码

以下是一个完整的示例代码，展示了如何使用 selection_dialogs 插件来实现国家、语言和其他选项的选择对话框。

import 'package:flutter/material.dart';
import 'package:selection_dialogs/country_convert.dart';
import 'package:selection_dialogs/country_selector_dialog.dart';
import 'package:selection_dialogs/gender_selector_dialog.dart';
import 'package:selection_dialogs/language_convert.dart';
import 'package:selection_dialogs/language_selector_dialog.dart';
import 'package:selection_dialogs/models/country.dart';
import 'package:selection_dialogs/models/language.dart';

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

class MyApp extends StatelessWidget {
  const MyApp({super.key});

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

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

  final String title;

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

class _MyHomePageState extends State<MyHomePage> {
  [@override](/user/override)
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            ElevatedButton(
              onPressed: () {
                showDialog(
                  context: context,
                  builder: (BuildContext context) {
                    return LanguageSelector(
                      onTap: (LanguageData item) {
                        print("${item.name}---${item.locale}---${item.flag}---${item.nativeName}");
                        // Navigator.pop(context);
                      },
                    );
                  },
                );
              },
              child: Text("选择语言"),
            ),
            ElevatedButton(
              onPressed: () {
                showDialog(
                  context: context,
                  builder: (BuildContext context) {
                    return CountrySelector(
                      onTap: (Country country) {
                        print("${country.name}---${country.isoCode}");
                      },
                    );
                  },
                );
              },
              child: Text("选择国家"),
            ),
            ElevatedButton(
              onPressed: () {
                String code = CountryConvert().nameToCode("Bangladesh");
                print(code); // 输出: BD
              },
              child: Text("国家名称转代码"),
            ),
            ElevatedButton(
              onPressed: () {
                String name = CountryConvert().codeToName("BD");
                print(name); // 输出: Bangladesh
              },
              child: Text("国家代码转名称"),
            ),
            ElevatedButton(
              onPressed: () {
                String name = LanguageConvert().codeToName("en");
                print(name); // 输出: English
              },
              child: Text("语言代码转名称"),
            ),
            ElevatedButton(
              onPressed: () {
                String code = LanguageConvert().nameToCode("English");
                print(code); // 输出: en
              },
              child: Text("语言名称转代码"),
            ),
          ],
        ),
      ),
    );
  }
}