91 lines
2.4 KiB
Dart
91 lines
2.4 KiB
Dart
import 'dart:collection';
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import 'package:flutter/material.dart';
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import 'package:flutter/widgets.dart';
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import 'package:myapp/models/album.dart';
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import 'package:myapp/models/photo.dart';
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import 'package:myapp/ui/album_widget.dart';
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import 'package:myapp/ui/thumbnail_widget.dart';
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import 'package:path/path.dart' as path;
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class AlbumListWidget extends StatefulWidget {
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final List<Photo> photos;
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const AlbumListWidget(this.photos, {Key key}) : super(key: key);
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@override
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_AlbumListWidgetState createState() => _AlbumListWidgetState();
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}
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class _AlbumListWidgetState extends State<AlbumListWidget> {
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@override
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Widget build(BuildContext context) {
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List<Album> albums = _getAlbums(widget.photos);
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return Container(
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margin: EdgeInsets.only(top: 24),
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child: GridView.builder(
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shrinkWrap: true,
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padding: EdgeInsets.only(bottom: 12),
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physics: ScrollPhysics(), // to disable GridView's scrolling
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itemBuilder: (context, index) {
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return _buildAlbum(context, albums[index]);
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},
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itemCount: albums.length,
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gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
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crossAxisCount: 2,
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),
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),
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);
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}
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List<Album> _getAlbums(List<Photo> photos) {
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final albumMap = new LinkedHashMap<String, List<Photo>>();
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for (Photo photo in photos) {
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final folder = path.basename(photo.pathName);
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if (!albumMap.containsKey(folder)) {
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albumMap[folder] = new List<Photo>();
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}
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albumMap[folder].add(photo);
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}
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List<Album> albums = new List<Album>();
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for (String albumName in albumMap.keys) {
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albums.add(Album(albumName, albumMap[albumName]));
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}
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return albums;
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}
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Widget _buildAlbum(BuildContext context, Album album) {
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return GestureDetector(
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child: Column(
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children: <Widget>[
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Container(
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child: ThumbnailWidget(album.photos[0]),
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height: 150,
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width: 150,
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),
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Padding(padding: EdgeInsets.all(2)),
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Expanded(
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child: Text(
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album.name,
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style: TextStyle(
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fontSize: 16,
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),
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),
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),
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],
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),
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onTap: () {
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final page = AlbumPage(album);
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Navigator.of(context).push(
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MaterialPageRoute(
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builder: (BuildContext context) {
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return page;
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},
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),
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);
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},
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);
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}
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}
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