first commit

moehu/moehu_fontend/lib/widget/WaterfallFlow/WaterfallFlow.dart

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+import 'package:flutter/material.dart';
+
+import 'package:flutter_staggered_grid_view/flutter_staggered_grid_view.dart';
+
+import 'StaggeredGridViewPage.dart';
+
+const List<StaggeredTile> _tiles = const <StaggeredTile>[
+  const StaggeredTile.count(2, 2),
+  const StaggeredTile.count(1, 1),
+  const StaggeredTile.count(1, 2),
+  const StaggeredTile.count(1, 1),
+  const StaggeredTile.count(4, 1),
+  const StaggeredTile.count(4, 2),
+  const StaggeredTile.count(1, 1),
+  const StaggeredTile.count(1, 1),
+  const StaggeredTile.count(1, 1),
+  const StaggeredTile.count(1, 1),
+  const StaggeredTile.count(1, 4),
+  const StaggeredTile.count(1, 3),
+  const StaggeredTile.count(1, 2),
+  const StaggeredTile.count(1, 1),
+  const StaggeredTile.count(1, 1),
+  const StaggeredTile.count(1, 1),
+  const StaggeredTile.count(1, 1),
+  const StaggeredTile.count(1, 1),
+  const StaggeredTile.count(1, 1),
+  const StaggeredTile.count(1, 1),
+];
+
+class SpannableCountCountPage extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    return const StaggeredGridViewPage.count(
+        title: 'Spannable (Count, Count)', crossAxisCount: 2, tiles: _tiles);
+  }
+}