初始化

2026-09-15 15:44:13 +07:00
commit a23ba685e9
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+import 'dart:io';
+
+import 'package:flutter_cache_manager/flutter_cache_manager.dart';
+import 'package:path/path.dart' as path;
+import 'package:path_provider/path_provider.dart';
+
+import '../tools_base/cache/dio_file_service.dart';
+
+/// 视频缓存
+class VideoCacheManager extends CacheManager {
+  static const key = "videoCache";
+
+  static VideoCacheManager? _instance;
+
+  factory VideoCacheManager() {
+    _instance ??= VideoCacheManager._(fileService: DioFileService());
+    return _instance!;
+  }
+
+  VideoCacheManager._({required FileService fileService})
+      : super(Config(
+          key,
+          stalePeriod: const Duration(days: 100),
+          maxNrOfCacheObjects: 200,
+          fileService: fileService,
+        ));
+
+  /// 缓存存储路径
+  Future<String?> getFilePath() async {
+    final dir = await getCommonDir();
+    return dir == null ? null : path.join(dir.path, key);
+  }
+
+  /// 获取公用的dir目录
+  static Future<Directory?> getCommonDir() {
+    if (Platform.isIOS) return getTemporaryDirectory();
+    if (Platform.isAndroid) return getExternalStorageDirectory();
+    //桌面/其它平台用 app support 目录
+    if (Platform.isFuchsia || Platform.isMacOS || Platform.isLinux || Platform.isWindows) {
+      return getApplicationSupportDirectory();
+    }
+    return getExternalStorageDirectory();
+  }
+}