immich/mobile/lib/modules/home/ui/image_grid.dart

import 'package:flutter/material.dart';
import 'package:hooks_riverpod/hooks_riverpod.dart';
import 'package:immich_mobile/modules/home/ui/thumbnail_image.dart';
import 'package:immich_mobile/shared/models/immich_asset.model.dart';

class ImageGrid extends ConsumerWidget {
  final List<ImmichAsset> assetGroup;

  const ImageGrid({Key? key, required this.assetGroup}) : super(key: key);

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    return SliverGrid(
      gridDelegate: const SliverGridDelegateWithFixedCrossAxisCount(
        crossAxisCount: 4,
        crossAxisSpacing: 5.0,
        mainAxisSpacing: 5,
      ),
      delegate: SliverChildBuilderDelegate(
        (BuildContext context, int index) {
          var assetType = assetGroup[index].type;

          return GestureDetector(
            onTap: () {},
            child: Stack(
              children: [
                ThumbnailImage(asset: assetGroup[index]),
                assetType == 'IMAGE'
                    ? Container()
                    : Positioned(
                        top: 5,
                        right: 5,
                        child: Row(
                          children: [
                            Text(
                              assetGroup[index].duration.toString().substring(0, 7),
                              style: const TextStyle(
                                color: Colors.white,
                                fontSize: 10,
                              ),
                            ),
                            const Icon(
                              Icons.play_circle_outline_rounded,
                              color: Colors.white,
                            ),
                          ],
                        ),
                      )
              ],
            ),
          );
        },
        childCount: assetGroup.length,
      ),
    );
  }
}