flutter:复制粘贴功能

一，代码

import 'package:flutter/material.dart';
import 'package:fluttertoast/fluttertoast.dart';
import 'package:flutter/services.dart';

class CopyPage extends StatefulWidget {
  final Map arguments;

  // 为title设置一个默认参数，这样的跳转该界面时可以不传值。
  CopyPage({super.key, required this.arguments});
  @override
  State<CopyPage> createState() => _CopyPageState();
}

class _CopyPageState extends State<CopyPage> {

  @override
  void initState() {
    super.initState();
  }

  @override
  Widget build(BuildContext context) {

    return Scaffold(
      appBar: AppBar(
        backgroundColor: Theme.of(context).colorScheme.primaryContainer,
        title: Text(widget.arguments["title"]),
      ),

      body: Center(
          child: Column(
              mainAxisAlignment: MainAxisAlignment.center,
              children: [
         ElevatedButton(
          onPressed: () {

            String content = "空山新雨后，天气晚来秋";
            Clipboard.setData(ClipboardData(text: content));

          },
          child: Row(
            mainAxisSize: MainAxisSize.min, // 根据内容调整大小
            children: <Widget>[
              Icon(Icons.add), // 图标在左侧
              SizedBox(width: 10), // 可选：添加一些间隔
              Text("复制文本到剪贴板"), // 文本在右侧
            ],
          ),
        ),
                SizedBox(height: 16),
                ElevatedButton(
                  onPressed: () async {

                    var content = await Clipboard.getData(Clipboard.kTextPlain);

                    Fluttertoast.showToast(
                      msg: "从剪贴板中读取到的内容:"+(content?.text ?? ""),
                      toastLength: Toast.LENGTH_LONG,
                      gravity: ToastGravity.CENTER,
                      timeInSecForIosWeb: 1,
                      backgroundColor: Colors.red,
                      textColor: Colors.white,
                      fontSize: 16.0,
                      //duration
                    );

                  },
                  child: Row(
                    mainAxisSize: MainAxisSize.min, // 根据内容调整大小
                    children: <Widget>[
                      Icon(Icons.add), // 图标在左侧
                      SizedBox(width: 10), // 可选：添加一些间隔
                      Text("从剪贴板读取文本"), // 文本在右侧
                    ],
                  ),
                ),
        ],
      ),
          ),
    );
  }
}

 

二，测试效果