boxy 2.0.6+2

Overcome limitations of built-in layouts, advanced flex, custom multi-child layouts, slivers, and more!

example/lib/main.dart

import 'package:boxy_gallery/pages/blog_tile.dart';
import 'package:boxy_gallery/pages/boxy_row.dart';
import 'package:boxy_gallery/pages/line_numbers.dart';
import 'package:boxy_gallery/pages/product_tile.dart';
import 'package:boxy_gallery/pages/product_tile_simple.dart';
import 'package:boxy_gallery/pages/sliver_container.dart';
import 'package:boxy_gallery/pages/tree_view.dart';
import 'package:flutter/material.dart';
import 'package:material_design_icons_flutter/material_design_icons_flutter.dart';
import 'package:url_launcher/url_launcher.dart';

void main() => runApp(MyApp());

class NiceColors {
  static const background = Color(0xff21252b);
  static const primary = Color(0xff282c34);
  static const divider = Color(0xff46494f);
  static const text = Color(0xffcbd3e3);
}

class MyApp extends StatelessWidget {
  build(BuildContext context) => MaterialApp(
        title: 'Boxy gallery',
        theme: ThemeData.dark().copyWith(
          scaffoldBackgroundColor: NiceColors.background,
          primaryColor: NiceColors.primary,
        ),
        routes: {
          '/': (_) => MyHomePage(),
          'tree-view': (_) => TreeViewPage(),
          'product-tile': (_) => ProductTilePage(),
          'product-tile-simple': (_) => ProductTileSimplePage(),
          'boxy-row': (_) => BoxyRowPage(),
          'line-numbers': (_) => LineNumberPage(),
          'blog-tile': (_) => BlogTilePage(),
          'sliver-container': (_) => SliverContainerPage(),
        },
      );
}

class DemoTile extends StatelessWidget {
  const DemoTile({
    required this.icon,
    required this.name,
    required this.route,
  });

  final String name;
  final IconData icon;
  final String route;

  build(context) => Material(
      child: InkWell(
          child: Row(children: [
            Container(
              child: Icon(
                icon,
                color: NiceColors.text,
              ),
              padding:
                  const EdgeInsets.only(left: 20, top: 8, bottom: 8, right: 16),
            ),
            Text(
              name,
              style: const TextStyle(
                color: NiceColors.text,
                fontSize: 16,
              ),
            ),
          ]),
          onTap: () {
            Navigator.pushNamed(context, route);
          }),
      color: NiceColors.background);
}

class Separator extends StatelessWidget {
  build(context) => Container(
        height: 1,
        color: NiceColors.divider,
      );
}

class GalleryAppBarButton extends StatelessWidget {
  final IconData icon;
  final VoidCallback onTap;
  final String? tooltip;

  const GalleryAppBarButton(this.icon, this.onTap, {this.tooltip});

  build(context) {
    Widget result = ConstrainedBox(
        child: Padding(
            child: Material(
              child: InkWell(
                child: Icon(
                  icon,
                  color: NiceColors.text,
                  size: 16,
                ),
                onTap: onTap,
              ),
              color: NiceColors.primary,
              borderRadius: BorderRadius.circular(2),
            ),
            padding: const EdgeInsets.only(
              top: 8,
              bottom: 8,
              left: 8,
            )),
        constraints: const BoxConstraints(minWidth: 56));

    if (tooltip != null) {
      result = Tooltip(
        message: tooltip!,
        child: result,
      );
    }

    return result;
  }
}

class GalleryAppBar extends StatelessWidget implements PreferredSizeWidget {
  final List<String> title;
  final String? source;
  final List<Widget>? actions;

  const GalleryAppBar(this.title, {this.source, this.actions});

  build(context) => AppBar(
        leading: title.length == 1
            ? null
            : GalleryAppBarButton(Icons.arrow_back_ios, () {
                Navigator.pushReplacementNamed(context, '/');
              }),
        title: SizedBox(
            height: kToolbarHeight,
            child: OverflowBox(
              child: Row(children: [
                for (var i = 0; i < title.length; i++) ...[
                  if (i != 0)
                    Padding(
                      child: Icon(Icons.arrow_right,
                          color: NiceColors.text.withOpacity(0.5)),
                      padding: const EdgeInsets.all(8),
                    ),
                  Text(
                    title[i],
                    style: const TextStyle(
                      color: NiceColors.text,
                    ),
                  ),
                ]
              ]),
              alignment: Alignment.centerLeft,
              maxWidth: double.infinity,
            )),
        elevation: 0,
        actions: [
          if (actions != null) ...actions!,
          if (source != null)
            GalleryAppBarButton(
              Icons.description,
              () {
                launch(source!);
              },
              tooltip: 'Source code',
            ),
          const Padding(padding: EdgeInsets.only(right: 8)),
        ],
      );

  get preferredSize => const Size.fromHeight(kToolbarHeight);
}

class MyHomePage extends StatelessWidget {
  build(BuildContext context) => Scaffold(
        appBar: const GalleryAppBar(['Boxy Gallery']),
        body: Container(
            child: ListView(children: [
              Separator(),
              const DemoTile(
                icon: MdiIcons.fileTree,
                name: 'Tree View',
                route: 'tree-view',
              ),
              const DemoTile(
                icon: MdiIcons.collage,
                name: 'BoxyRow',
                route: 'boxy-row',
              ),
              const DemoTile(
                icon: MdiIcons.dockBottom,
                name: 'Product Tile',
                route: 'product-tile',
              ),
              const DemoTile(
                icon: MdiIcons.dockBottom,
                name: 'Simple Product Tile',
                route: 'product-tile-simple',
              ),
              const DemoTile(
                icon: MdiIcons.formatListNumbered,
                name: 'Line Numbers',
                route: 'line-numbers',
              ),
              const DemoTile(
                icon: MdiIcons.viewSplitVertical,
                name: 'Blog Tile',
                route: 'blog-tile',
              ),
              const DemoTile(
                icon: MdiIcons.pageLayoutBody,
                name: 'Sliver Container',
                route: 'sliver-container',
              ),
              Separator(),
            ], physics: const BouncingScrollPhysics()),
            color: NiceColors.primary),
      );
}