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: 3, 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,
      ),
    );
  }
}