copyWith method

AssetPickerConfig copyWith({ List<AssetEntity>? selectedAssets, int? maxAssets, int? pageSize, ThumbnailSize? gridThumbnailSize, ThumbnailSize? pathThumbnailSize, ThumbnailSize? previewThumbnailSize, RequestType? requestType, SpecialPickerType? specialPickerType, bool? keepScrollOffset, SortPathDelegate<AssetPathEntity>? sortPathDelegate, bool? sortPathsByModifiedDate, FilterOptionGroup? filterOptions, int? gridCount, Color? themeColor, ThemeData? pickerTheme, AssetPickerTextDelegate? textDelegate, SpecialItemPosition? specialItemPosition, SpecialItemBuilder<AssetPathEntity>? specialItemBuilder, LoadingIndicatorBuilder? loadingIndicatorBuilder, AssetSelectPredicate<AssetEntity>? selectPredicate, bool? shouldRevertGrid, LimitedPermissionOverlayPredicate? limitedPermissionOverlayPredicate, PathNameBuilder<AssetPathEntity>? pathNameBuilder, })

Implementation

AssetPickerConfig copyWith({
  /// Selected assets.
  /// 已选中的资源
  List<AssetEntity>? selectedAssets,

  /// Maximum count for asset selection.
  /// 资源选择的最大数量
  int? maxAssets,

  /// Assets should be loaded per page.
  /// 资源选择的最大数量
  ///
  /// Use `null` to display all assets into a single grid.
  int? pageSize,

  /// Thumbnail size in the grid.
  /// 预览时网络的缩略图大小
  ///
  /// This only works on images and videos since other types does not have to
  /// request for the thumbnail data. The preview can speed up by reducing it.
  /// 该参数仅生效于图片和视频类型的资源，因为其他资源不需要请求缩略图数据。
  /// 预览图片的速度可以通过适当降低它的数值来提升。
  ///
  /// This cannot be `null` or a large value since you shouldn't use the
  /// original data for the grid.
  /// 该值不能为空或者非常大，因为在网格中使用原数据不是一个好的决定。
  ThumbnailSize? gridThumbnailSize,

  /// Thumbnail size for path selector.
  /// 路径选择器中缩略图的大小
  ThumbnailSize? pathThumbnailSize,

  /// Preview thumbnail size in the viewer.
  /// 预览时图片的缩略图大小
  ///
  /// This only works on images and videos since other types does not have to
  /// request for the thumbnail data. The preview can speed up by reducing it.
  /// 该参数仅生效于图片和视频类型的资源，因为其他资源不需要请求缩略图数据。
  /// 预览图片的速度可以通过适当降低它的数值来提升。
  ///
  /// Default is `null`, which will request the origin data.
  /// 默认为空，即读取原图。
  ThumbnailSize? previewThumbnailSize,

  /// Request assets type.
  /// 请求的资源类型
  RequestType? requestType,

  /// The current special picker type for the picker.
  /// 当前特殊选择类型
  ///
  /// Several types which are special:
  /// * [SpecialPickerType.wechatMoment] When user selected video,
  ///   no more images can be selected.
  /// * [SpecialPickerType.noPreview] Disable preview of asset,
  ///   Clicking on an asset selects it.
  ///
  /// 这里包含一些特殊选择类型：
  /// * [SpecialPickerType.wechatMoment] 微信朋友圈模式。
  ///   当用户选择了视频，将不能选择图片。
  /// * [SpecialPickerType.noPreview] 禁用资源预览。
  ///   多选时单击资产将直接选中，单选时选中并返回。
  SpecialPickerType? specialPickerType,

  /// Whether the picker should save the scroll offset between pushes and pops.
  /// 选择器是否可以从同样的位置开始选择
  bool? keepScrollOffset,

  /// @{macro wechat_assets_picker.delegates.SortPathDelegate}
  SortPathDelegate<AssetPathEntity>? sortPathDelegate,

  /// {@template wechat_assets_picker.constants.AssetPickerConfig.sortPathsByModifiedDate}
  /// Whether to allow sort delegates to sort paths with
  /// [FilterOptionGroup.containsPathModified].
  /// 是否结合 [FilterOptionGroup.containsPathModified] 进行路径排序
  /// {@endtemplate}
  bool? sortPathsByModifiedDate,

  /// Filter options for the picker.
  /// 选择器的筛选条件
  ///
  /// Will be merged into the base selectedAssets??thisuration.
  /// 将会与基础条件进行合并。
  FilterOptionGroup? filterOptions,

  /// Assets count for the picker.
  /// 资源网格数
  int? gridCount,

  /// Main color for the picker.
  /// 选择器的主题色
  Color? themeColor,

  /// Theme for the picker.
  /// 选择器的主题
  ///
  /// Usually the WeChat uses the dark version (dark background color)
  /// for the picker. However, some others want a light or a custom version.
  /// 通常情况下微信选择器使用的是暗色（暗色背景）的主题，
  /// 但某些情况下开发者需要亮色或自定义主题。
  ThemeData? pickerTheme,
  AssetPickerTextDelegate? textDelegate,

  /// Allow users set a special item in the picker with several positions.
  /// 允许用户在选择器中添加一个自定义item，并指定位置
  SpecialItemPosition? specialItemPosition,

  /// The widget builder for the the special item.
  /// 自定义item的构造方法
  SpecialItemBuilder<AssetPathEntity>? specialItemBuilder,

  /// Indicates the loading status for the builder.
  /// 指示目前加载的状态
  LoadingIndicatorBuilder? loadingIndicatorBuilder,

  /// {@macro wechat_assets_picker.AssetSelectPredicate}
  AssetSelectPredicate<AssetEntity>? selectPredicate,

  /// Whether the assets grid should revert.
  /// 判断资源网格是否需要倒序排列
  ///
  /// [Null] means judging by Apple OS.
  /// 使用 [Null] 即使用是否为 Apple 系统进行判断。
  bool? shouldRevertGrid,

  /// {@macro wechat_assets_picker.LimitedPermissionOverlayPredicate}
  LimitedPermissionOverlayPredicate? limitedPermissionOverlayPredicate,

  /// {@macro wechat_assets_picker.PathNameBuilder}
  PathNameBuilder<AssetPathEntity>? pathNameBuilder,
}) =>
    AssetPickerConfig(
        selectedAssets: selectedAssets ?? this.selectedAssets,
        maxAssets: maxAssets ?? this.maxAssets,
        pageSize: pageSize ?? this.pageSize,
        gridThumbnailSize: gridThumbnailSize ?? this.gridThumbnailSize,
        pathThumbnailSize: pathThumbnailSize ?? this.pathThumbnailSize,
        previewThumbnailSize:
            previewThumbnailSize ?? this.previewThumbnailSize,
        requestType: requestType ?? this.requestType,
        specialPickerType: specialPickerType ?? this.specialPickerType,
        keepScrollOffset: keepScrollOffset ?? this.keepScrollOffset,
        sortPathDelegate: sortPathDelegate ?? this.sortPathDelegate,
        sortPathsByModifiedDate:
            sortPathsByModifiedDate ?? this.sortPathsByModifiedDate,
        filterOptions: filterOptions ?? this.filterOptions,
        gridCount: gridCount ?? this.gridCount,
        themeColor: themeColor ?? this.themeColor,
        pickerTheme: pickerTheme ?? this.pickerTheme,
        textDelegate: textDelegate ?? this.textDelegate,
        specialItemPosition: specialItemPosition ?? this.specialItemPosition,
        specialItemBuilder: specialItemBuilder ?? this.specialItemBuilder,
        loadingIndicatorBuilder:
            loadingIndicatorBuilder ?? this.loadingIndicatorBuilder,
        selectPredicate: selectPredicate ?? this.selectPredicate,
        shouldRevertGrid: shouldRevertGrid ?? this.shouldRevertGrid,
        limitedPermissionOverlayPredicate:
            limitedPermissionOverlayPredicate ??
                this.limitedPermissionOverlayPredicate,
        pathNameBuilder: pathNameBuilder ?? this.pathNameBuilder);