flutter读取sdcard里面的图片跟视频

首先需要在AndroidManifest.xml文件中配置

 <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <uses-permission
        android:name="android.permission.MANAGE_EXTERNAL_STORAGE"
        tools:ignore="ScopedStorage" />

相当于直接在当前App里注入了读取权限。
使用：
main.dart

setPermission() async {
    var list = await getDirectoryPath('sdcard');
    debugPrint('list===$list', wrapWidth: 1024);
  }

  //读取SDK中图片、视频文件的路径（异步读取）
  getDirectoryPath(rootName) async {
    print('读取SD卡');
    //'sdcard/Android/data'没有权限读取 排除它
    var list = [];
    try {
      var systemTempDir = Directory(rootName);
      Stream<FileSystemEntity> dirsFileList =
          systemTempDir.list(recursive: false, followLinks: false);

      //一级目录,排除sdcard/Android
      await for (FileSystemEntity entity in dirsFileList) {
        final path = entity.path;
        debugPrint('path===$path');
        //判断是否有二级路由
        FileSystemEntityType type = FileSystemEntity.typeSync(path);
        if (!path.startsWith('sdcard/Android')) {
          if (type == FileSystemEntityType.directory) {
            //有二级目录
            var newList = await getDirectoryPath(path);
            list = [...list, ...newList];
          } else {
            if (Global.isImgFormat(path) || Global.isVideoFormat(path)) {
              list.add(path);
            }
          }
        }
      }
    } catch (e) {
      debugPrint('e===$e');
    }
    return list;
  }

这篇好文章是转载于：学新通技术网