getPaths method

@override Future<void> getPaths({ bool onlyAll = false, bool keepPreviousCount = false, })

Get paths. 获取所有的资源路径

Implementation

@override
Future<void> getPaths({
  bool onlyAll = false,
  bool keepPreviousCount = false,
}) async {
  final PMFilter options;
  final fog = filterOptions;
  if (fog == null) {
    options = AdvancedCustomFilter(
      orderBy: [OrderByItem.desc(CustomColumns.base.createDate)],
    );
  } else if (fog is FilterOptionGroup) {
    final newOptions = FilterOptionGroup(
      imageOption: const FilterOption(
        sizeConstraint: SizeConstraint(ignoreSize: true),
      ),
      audioOption: const FilterOption(
        // Enable title for audios to get proper display.
        needTitle: true,
        sizeConstraint: SizeConstraint(ignoreSize: true),
      ),
      containsPathModified: sortPathsByModifiedDate,
      createTimeCond: DateTimeCond.def().copyWith(ignore: true),
      updateTimeCond: DateTimeCond.def().copyWith(ignore: true),
    );
    newOptions.merge(fog);
    options = newOptions;
  } else {
    options = fog;
  }

  final list = await PhotoManager.getAssetPathList(
    type: requestType,
    filterOption: options,
    onlyAll: onlyAll,
  );

  _paths = list.map((p) {
    final int? assetCount;
    if (keepPreviousCount) {
      assetCount =
          _paths.where((e) => e.path.id == p.id).firstOrNull?.assetCount;
    } else {
      assetCount = null;
    }
    return PathWrapper<AssetPathEntity>(path: p, assetCount: assetCount);
  }).toList();
  // Sort path using sort path delegate.
  Singleton.sortPathDelegate.sort(_paths);
  // Populate fields to paths without awaiting.
  for (final path in _paths) {
    Future(() async {
      await getAssetCountFromPath(path);
      await getThumbnailFromPath(path);
    });
  }

  // Set first path entity as current path entity.
  if (_paths.isNotEmpty) {
    _currentPath ??= _paths.first;
  }

  if (onlyAll) {
    await getAssetsFromCurrentPath();
  }
}