pathEntityListWidget method

@override Widget pathEntityListWidget(BuildContext context)

List widget for path entities. 路径选择列表组件

Implementation

@override
Widget pathEntityListWidget(BuildContext context) {
  return Positioned.fill(
    top: isAppleOS ? context.topPadding + kToolbarHeight : 0,
    bottom: null,
    child: ClipRRect(
      borderRadius: const BorderRadius.vertical(
        bottom: Radius.circular(10),
      ),
      child: Selector<DefaultAssetPickerProvider, bool>(
        selector: (_, DefaultAssetPickerProvider p) => p.isSwitchingPath,
        builder: (_, bool isSwitchingPath, Widget? w) => AnimatedAlign(
          duration: switchingPathDuration,
          curve: switchingPathCurve,
          alignment: Alignment.bottomCenter,
          heightFactor: isSwitchingPath ? 1 : 0,
          child: AnimatedOpacity(
            duration: switchingPathDuration,
            curve: switchingPathCurve,
            opacity: !isAppleOS || isSwitchingPath ? 1 : 0,
            child: Container(
              constraints: BoxConstraints(
                maxHeight:
                    context.mediaQuery.size.height * (isAppleOS ? .6 : .8),
              ),
              color: theme.colorScheme.background,
              child: w,
            ),
          ),
        ),
        child: Column(
          mainAxisSize: MainAxisSize.min,
          children: <Widget>[
            ValueListenableBuilder<PermissionState>(
              valueListenable: permission,
              builder: (_, PermissionState ps, Widget? child) {
                if (isPermissionLimited) {
                  return child!;
                }
                return const SizedBox.shrink();
              },
              child: Padding(
                padding: const EdgeInsets.symmetric(
                  horizontal: 20,
                  vertical: 12,
                ),
                child: Text.rich(
                  TextSpan(
                    children: <TextSpan>[
                      TextSpan(
                        text: Constants.textDelegate.viewingLimitedAssetsTip,
                      ),
                      TextSpan(
                        text: ' '
                            '${Constants.textDelegate.changeAccessibleLimitedAssets}',
                        style:
                            TextStyle(color: interactiveTextColor(context)),
                        recognizer: TapGestureRecognizer()
                          ..onTap = PhotoManager.presentLimited,
                      ),
                    ],
                  ),
                  style: context.themeData.textTheme.caption?.copyWith(
                    fontSize: 14,
                  ),
                ),
              ),
            ),
            Flexible(
              child: Selector<DefaultAssetPickerProvider, int>(
                selector: (_, DefaultAssetPickerProvider p) =>
                    p.validPathThumbCount,
                builder: (_, int count, __) => Selector<
                    DefaultAssetPickerProvider,
                    Map<AssetPathEntity, Uint8List?>>(
                  selector: (_, DefaultAssetPickerProvider p) =>
                      p.pathEntityList,
                  builder: (_, Map<AssetPathEntity, Uint8List?> list, __) {
                    return ListView.separated(
                      padding: const EdgeInsetsDirectional.only(top: 1),
                      shrinkWrap: true,
                      itemCount: list.length,
                      itemBuilder: (BuildContext c, int i) =>
                          pathEntityWidget(
                        context: c,
                        list: list,
                        index: i,
                        isAudio: (provider as DefaultAssetPickerProvider)
                                .requestType ==
                            RequestType.audio,
                      ),
                      separatorBuilder: (_, __) => Container(
                        margin: const EdgeInsetsDirectional.only(start: 60),
                        height: 1,
                        color: theme.canvasColor,
                      ),
                    );
                  },
                ),
              ),
            ),
          ],
        ),
      ),
    ),
  );
}