flutter_kit_file_open 0.0.2

Private plugins / packages

example/lib/main.dart

import 'dart:async';

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

import 'expandeble_info_item.dart';

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

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

  @override
  State<MyApp> createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  String _platformVersion = 'Unknown';
  String _file1 = '空';
  String _file2 = '空';
  String _file3 = '空';
  String _data1 = '空';
  String _data2 = '空';
  String _data3 = '空';
  final _flutterFileOpenerPlugin = FlutterKitFileOpen();
  // 关键：必须创建 ScrollController
  final ScrollController _scrollController = ScrollController();

  @override
  void initState() {
    super.initState();
    initPlatformState();
    listen();
    fetchInitialFiles();
    receiveFile();
  }

  // Platform messages are asynchronous, so we initialize in an async method.
  Future<void> initPlatformState() async {
    String platformVersion;
    // Platform messages may fail, so we use a try/catch PlatformException.
    // We also handle the message potentially returning null.
    try {
      platformVersion = await FlutterKitFileOpen.getPlatformVersion() ?? 'Unknown platform version';
    } on PlatformException {
      platformVersion = 'Failed to get platform version.';
    }

    // If the widget was removed from the tree while the asynchronous platform
    // message was in flight, we want to discard the reply rather than calling
    // setState to update our non-existent appearance.
    if (!mounted) return;

    setState(() {
      _platformVersion = platformVersion;
    });
  }

  // ================= 方式1: 运行中实时接收文件（Stream） =================
  void listen() {
    FlutterKitFileOpen.fileStream.listen((OpenFileResult result) async {
      await result.readData();
      setState(() {
        _file1 = result.path;
        _data1 = result.data;
      });
      print("方式1：Stream 收到文件路径: ${result.path}");
    });
  }

  // ================= 方式2: 冷启动 / 主动拉取 =================
  Future<void> fetchInitialFiles() async {
    final result = await FlutterKitFileOpen.getFiles();
    if (result != null) {
      await result.readData();
      setState(() {
        _file2 = result.path;
        _data2 = result.data;
      });
      print("方式2：拉取到文件路径: ${result.path}");
    } else {
      print("方式2：没有文件可拉取");
    }
  }

  // ================= 方式3: 回调方式 =================
  void receiveFile() {
    FlutterKitFileOpen.receiveFileUri((OpenFileResult? result) async {
      if (result != null) {
        await result.readData();
        setState(() {
          _file3 = result.path;
          _data3 = result.data;
        });
        print("方式3：回调收到文件路径: ${result.path}");
      }
    });
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(title: const Text('Plugin example app')),
        body: Scrollbar(
          thickness: 30,
          thumbVisibility: true, // 始终显示
          interactive: true,
          radius: Radius.circular(15),
          controller: _scrollController,
          child: SingleChildScrollView(
            controller: _scrollController,
            child: Padding(
              padding: const EdgeInsets.all(16.0),
              child: Column(
                children: [
                  Center(child: Text('Running on: $_platformVersion')),
                  const SizedBox(height: 20),
                  ExpandableInfoItem(label: 'file1', value: _file1),
                  ExpandableInfoItem(label: 'data1', value: _data1, collapsedLines: 5),
                  ExpandableInfoItem(label: 'file2', value: _file2),
                  ExpandableInfoItem(label: 'data2', value: _data2, collapsedLines: 5),
                  ExpandableInfoItem(label: 'file3', value: _file3),
                  ExpandableInfoItem(label: 'data3', value: _data3, collapsedLines: 5),
                ],
              ),
            ),
          ),
        ),
      ),
    );
  }
}