pathEntityWidget method

@override Widget pathEntityWidget({ required BuildContext context, required List<PathWrapper<AssetPathEntity>> list, required int index, })

Item widgets for path entity selector. 路径单独条目选择组件

Implementation

@override
Widget pathEntityWidget({
  required BuildContext context,
  required List<PathWrapper<AssetPathEntity>> list,
  required int index,
}) {
  final PathWrapper<AssetPathEntity> wrapper = list[index];
  final AssetPathEntity pathEntity = wrapper.path;
  final typed_data.Uint8List? data = wrapper.thumbnailData;

  Widget builder() {
    if (data != null) {
      return Image.memory(data, fit: BoxFit.cover);
    }
    if (pathEntity.type.containsAudio()) {
      return ColoredBox(
        color: theme.colorScheme.primary.withOpacity(0.12),
        child: const Center(child: Icon(Icons.audiotrack)),
      );
    }
    return ColoredBox(color: theme.colorScheme.primary.withOpacity(0.12));
  }

  final String pathName =
      pathNameBuilder?.call(pathEntity) ?? pathEntity.name;
  final String name = isPermissionLimited && pathEntity.isAll
      ? textDelegate.accessiblePathName
      : pathName;
  final String semanticsName = isPermissionLimited && pathEntity.isAll
      ? semanticsTextDelegate.accessiblePathName
      : pathName;
  final String? semanticsCount = wrapper.assetCount?.toString();
  final StringBuffer labelBuffer = StringBuffer(
    '$semanticsName, ${semanticsTextDelegate.sUnitAssetCountLabel}',
  );
  if (semanticsCount != null) {
    labelBuffer.write(': $semanticsCount');
  }
  return Selector<DefaultAssetPickerProvider, PathWrapper<AssetPathEntity>?>(
    selector: (_, DefaultAssetPickerProvider p) => p.currentPath,
    builder: (_, PathWrapper<AssetPathEntity>? currentWrapper, __) {
      final bool isSelected = currentWrapper?.path == pathEntity;
      return Semantics(
        label: labelBuffer.toString(),
        selected: isSelected,
        onTapHint: semanticsTextDelegate.sActionSwitchPathLabel,
        button: false,
        child: Material(
          type: MaterialType.transparency,
          child: InkWell(
            splashFactory: InkSplash.splashFactory,
            onTap: () {
              Feedback.forTap(context);
              context.read<DefaultAssetPickerProvider>().switchPath(wrapper);
              isSwitchingPath.value = false;
              gridScrollController.jumpTo(0);
            },
            child: SizedBox(
              height: isAppleOS ? 64 : 52,
              child: Row(
                children: <Widget>[
                  RepaintBoundary(
                    child: AspectRatio(aspectRatio: 1, child: builder()),
                  ),
                  Expanded(
                    child: Padding(
                      padding: const EdgeInsetsDirectional.only(
                        start: 15,
                        end: 20,
                      ),
                      child: ExcludeSemantics(
                        child: Row(
                          children: <Widget>[
                            Flexible(
                              child: Padding(
                                padding: const EdgeInsetsDirectional.only(
                                  end: 10,
                                ),
                                child: ScaleText(
                                  name,
                                  style: const TextStyle(fontSize: 17),
                                  maxLines: 1,
                                  overflow: TextOverflow.ellipsis,
                                ),
                              ),
                            ),
                            if (semanticsCount != null)
                              ScaleText(
                                '($semanticsCount)',
                                style: TextStyle(
                                  color: theme.textTheme.bodySmall?.color,
                                  fontSize: 17,
                                ),
                                maxLines: 1,
                                overflow: TextOverflow.ellipsis,
                              ),
                          ],
                        ),
                      ),
                    ),
                  ),
                  if (isSelected)
                    AspectRatio(
                      aspectRatio: 1,
                      child: Icon(Icons.check, color: themeColor, size: 26),
                    ),
                ],
              ),
            ),
          ),
        ),
      );
    },
  );
}