Clean/lib/module/privacy/privacy_state.dart

// 创建一个共享状态类
import 'package:get/get_rx/src/rx_types/rx_types.dart';
import 'package:intl/intl.dart';

import '../../model/asset_info.dart';

class PrivacyState {
  static RxList<AssetInfo> imageList = <AssetInfo>[].obs;
  static RxMap<String, List<AssetInfo>> assetsByMonth = <String, List<AssetInfo>>{}.obs;

  // 删除图片
  static void removeAsset(String assetId) {
    imageList.removeWhere((asset) => asset.id == assetId);
    updateMonthlyAssets();
  }

  // 更新月份分组
  static void updateMonthlyAssets() {
    assetsByMonth.clear();
    for (var asset in imageList) {
      final month = DateFormat('yyyy-MM').format(asset.createDateTime);
      if (!assetsByMonth.containsKey(month)) {
        assetsByMonth[month] = [];
      }
      assetsByMonth[month]!.add(asset);
    }
  }
}