Flutter文件打开功能插件open_file

Flutter文件打开功能插件`open_file_modeck`的使用

概述

open_file_modeck 是一个能够在 Flutter 中调用原生应用打开文件的插件，支持多种平台，包括 iOS（通过 DocumentInteraction）、Android（通过 Intent）、PC（通过 FFI）和 Web（通过 dart:html）。

使用步骤

在项目的 pubspec.yaml 文件中添加依赖项。
```
dependencies:
  open_file_modeck: ^lastVersion 
```
替换 ^lastVersion 为最新版本号。
运行 flutter pub get 更新依赖。

示例代码

以下是一个完整的示例代码，展示如何使用 open_file_modeck 插件来打开文件：

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

import 'package:open_file_modeck/open_file_modeck.dart';

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

class MyApp extends StatefulWidget {
  @override
  _MyAppState createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  // 用于存储打开结果的状态变量
  var _openResult = 'Unknown';

  // 打开文件的方法
  Future<void> openFile() async {
    // 定义要打开的文件路径
    final filePath = '/storage/emulated/0/update.apk';
    
    // 调用 open 方法打开文件
    final result = await OpenFile.open(filePath);

    // 更新 UI 状态
    setState(() {
      _openResult = "type=${result.type}  message=${result.message}";
    });
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: const Text('open_file_modeck 示例'),
        ),
        body: Center(
          child: Column(
            mainAxisAlignment: MainAxisAlignment.center,
            children: <Widget>[
              // 显示打开结果
              Text('打开结果: $_openResult\n'),
              // 点击按钮打开文件
              TextButton(
                child: Text('点击以打开文件'),
                onPressed: openFile,
              ),
            ],
          ),
        ),
      ),
    );
  }
}

支持的文件类型

Android 平台支持的 MIME 类型

以下是部分常见的文件类型及对应的 MIME 类型：

{
    ".3gp":    "video/3gpp",
    ".torrent":"application/x-bittorrent",
    ".kml":    "application/vnd.google-earth.kml+xml",
    ".gpx":    "application/gpx+xml",
    ".csv":    "application/vnd.ms-excel",
    ".apk":    "application/vnd.android.package-archive",
    ".asf":    "video/x-ms-asf",
    ".avi":    "video/x-msvideo",
    ".bin":    "application/octet-stream",
    ".bmp":    "image/bmp",
    ".c":      "text/plain",
    ".class":  "application/octet-stream",
    ".conf":   "text/plain",
    ".cpp":    "text/plain",
    ".doc":    "application/msword",
    ".docx":   "application/vnd.openxmlformats-officedocument.wordprocessingml.document",
    ".xls":    "application/vnd.ms-excel",
    ".xlsx":   "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
    ".exe":    "application/octet-stream",
    ".gif":    "image/gif",
    ".gtar":   "application/x-gtar",
    ".gz":     "application/x-gzip",
    ".h":      "text/plain",
    ".htm":    "text/html",
    ".html":   "text/html",
    ".jar":    "application/java-archive",
    ".java":   "text/plain",
    ".jpeg":   "image/jpeg",
    ".jpg":    "image/jpeg",
    ".js":     "application/x-javascript",
    ".log":    "text/plain",
    ".m3u":    "audio/x-mpegurl",
    ".m4a":    "audio/mp4a-latm",
    ".m4b":    "audio/mp4a-latm",
    ".m4p":    "audio/mp4a-latm",
    ".m4u":    "video/vnd.mpegurl",
    ".m4v":    "video/x-m4v",
    ".mov":    "video/quicktime",
    ".mp2":    "audio/x-mpeg",
    ".mp3":    "audio/x-mpeg",
    ".mp4":    "video/mp4",
    ".mpc":    "application/vnd.mpohun.certificate",
    ".mpe":    "video/mpeg",
    ".mpeg":   "video/mpeg",
    ".mpg":    "video/mpeg",
    ".mpg4":   "video/mp4",
    ".mpga":   "audio/mpeg",
    ".msg":    "application/vnd.ms-outlook",
    ".ogg":    "audio/ogg",
    ".pdf":    "application/pdf",
    ".png":    "image/png",
    ".pps":    "application/vnd.ms-powerpoint",
    ".ppt":    "application/vnd.ms-powerpoint",
    ".pptx":   "application/vnd.openxmlformats-officedocument.presentationml.presentation",
    ".prop":   "text/plain",
    ".rc":     "text/plain",
    ".rmvb":   "audio/x-pn-realaudio",
    ".rtf":    "application/rtf",
    ".sh":     "text/plain",
    ".tar":    "application/x-tar",
    ".tgz":    "application/x-compressed",
    ".txt":    "text/plain",
    ".wav":    "audio/x-wav",
    ".wma":    "audio/x-ms-wma",
    ".wmv":    "audio/x-ms-wmv",
    ".wps":    "application/vnd.ms-works",
    ".xml":    "text/plain",
    ".z":      "application/x-compress",
    ".zip":    "application/x-zip-compressed",
    "":        "*/*"
}

iOS 平台支持的 UTI 类型

以下是部分常见的文件类型及对应的 UTI 类型：

{
    ".rtf":    "public.rtf",
    ".txt":    "public.plain-text",
    ".html":   "public.html",
    ".htm":    "public.html",
    ".xml":    "public.xml",
    ".tar":    "public.tar-archive",
    ".gz":     "org.gnu.gnu-zip-archive",
    ".gzip":   "org.gnu.gnu-zip-archive",
    ".tgz":    "org.gnu.gnu-zip-tar-archive",
    ".jpg":    "public.jpeg",
    ".jpeg":   "public.jpeg",
    ".png":    "public.png",
    ".avi":    "public.avi",
    ".mpg":    "public.mpeg",
    ".mpeg":   "public.mpeg",
    ".mp4":    "public.mpeg-4",
    ".3gpp":   "public.3gpp",
    ".3gp":    "public.3gpp",
    ".mp3":    "public.mp3",
    ".zip":    "com.pkware.zip-archive",
    ".gif":    "com.compuserve.gif",
    ".bmp":    "com.microsoft.bmp",
    ".ico":    "com.microsoft.ico",
    ".doc":    "com.microsoft.word.doc",
    ".xls":    "com.microsoft.excel.xls",
    ".ppt":    "com.microsoft.powerpoint.ppt",
    ".wav":    "com.microsoft.waveform-audio",
    ".wm":     "com.microsoft.windows-media-wm",
    ".wmv":    "com.microsoft.windows-media-wmv",
    ".pdf":    "com.adobe.pdf"
}

注意事项

Android 的 FileProvider 配置
如果与其它插件冲突导致 FileProvider 配置错误，可以在 /android/app/src/main/AndroidManifest.xml 文件中添加以下代码：

<provider
    android:name="androidx.core.content.FileProvider"
    android:authorities="${applicationId}.fileProvider"
    android:exported="false"
    android:grantUriPermissions="true"
    tools:replace="android:authorities">
    <meta-data
        android:name="android.support.FILE_PROVIDER_PATHS"
        android:resource="@xml/filepaths"
        tools:replace="android:resource" />
</provider>

Android 多版本冲突解决
如果遇到 com.android.support:appcompat-v7 版本冲突问题，可在 /android/build.gradle 文件中添加以下代码：

subprojects {
    project.configurations.all {
        resolutionStrategy.eachDependency { details ->
            if (details.requested.group == 'com.android.support'
                && !details.requested.name.contains('multidex') ) {
                details.useVersion "27.1.1"
            }
        }
    }
}

更多关于Flutter文件打开功能插件open_file_modeck的使用的实战系列教程也可以访问 https://www.itying.com/category-92-b0.html

wuwangju 1楼•8 天前

更多关于Flutter文件打开功能插件open_file_modeck的使用的实战系列教程也可以访问 https://www.itying.com/category-92-b0.html

在Flutter中，open_file 是一个常用的插件，用于打开本地文件。它支持多种文件类型，如PDF、图片、文本文件等。open_file_mock 是 open_file 插件的模拟版本，通常用于测试环境中，以避免在测试时实际打开文件。

1. 添加依赖

首先，你需要在 pubspec.yaml 文件中添加 open_file 和 open_file_mock 的依赖：

dependencies:
  flutter:
    sdk: flutter
  open_file: ^3.2.1

dev_dependencies:
  open_file_mock: ^3.2.1

然后运行 flutter pub get 来获取依赖。

2. 使用 `open_file` 插件

在代码中，你可以使用 open_file 插件来打开文件。以下是一个简单的示例：

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

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: Text('Open File Example'),
        ),
        body: Center(
          child: ElevatedButton(
            onPressed: () async {
              final filePath = '/path/to/your/file.pdf'; // 替换为你的文件路径
              final result = await OpenFile.open(filePath);
              print(result.message);
            },
            child: Text('Open File'),
          ),
        ),
      ),
    );
  }
}

3. 使用 `open_file_mock` 进行测试

在测试环境中，你可以使用 open_file_mock 来模拟 open_file 的行为。以下是一个测试示例：

import 'package:flutter_test/flutter_test.dart';
import 'package:open_file_mock/open_file_mock.dart';
import 'package:open_file/open_file.dart';

void main() {
  test('Test open file', () async {
    final mockOpenFile = MockOpenFile();
    OpenFile.setInstance(mockOpenFile);

    const filePath = '/path/to/your/file.pdf';
    await OpenFile.open(filePath);

    expect(mockOpenFile.lastFilePath, filePath);
  });
}

Flutter文件打开功能插件open_file_modeck的使用