95 lines
2.9 KiB
Dart
95 lines
2.9 KiB
Dart
import 'package:aves/image_fetcher.dart';
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import 'package:aves/thumbnail.dart';
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import 'package:draggable_scrollbar/draggable_scrollbar.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter/services.dart';
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void main() {
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runApp(MyApp());
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}
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class MyApp extends StatelessWidget {
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@override
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Widget build(BuildContext context) {
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return MaterialApp(
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title: 'Flutter Demo',
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theme: ThemeData(
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brightness: Brightness.dark,
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primarySwatch: Colors.blue,
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),
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home: MyHomePage(title: 'Flutter Demo Home Page'),
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);
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}
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}
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class MyHomePage extends StatefulWidget {
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MyHomePage({Key key, this.title}) : super(key: key);
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final String title;
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@override
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_MyHomePageState createState() => _MyHomePageState();
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}
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class _MyHomePageState extends State<MyHomePage> {
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Future<List> imageLoader;
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ScrollController scrollController = ScrollController();
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@override
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void initState() {
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super.initState();
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imageCache.maximumSizeBytes = 100 * 1024 * 1024;
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}
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@override
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Widget build(BuildContext context) {
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if (imageLoader == null) {
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imageLoader = ImageFetcher.getImageEntries();
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}
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var columnCount = 4;
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var extent = MediaQuery.of(context).size.width / columnCount;
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return Scaffold(
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appBar: AppBar(
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title: Text(widget.title),
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),
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body: FutureBuilder(
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future: imageLoader,
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builder: (futureContext, AsyncSnapshot<List> snapshot) {
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switch (snapshot.connectionState) {
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case ConnectionState.none:
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return Text('None');
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case ConnectionState.active:
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case ConnectionState.waiting:
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return Text('Awaiting result...');
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case ConnectionState.done:
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if (snapshot.hasError) return Text('Error: ${snapshot.error}');
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var imageEntryList = snapshot.data;
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return Container(
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padding: EdgeInsets.symmetric(vertical: 0.0),
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child: DraggableScrollbar.arrows(
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labelTextBuilder: (double offset) => Text(
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"${offset ~/ 1}",
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style: TextStyle(color: Colors.blueGrey),
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),
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controller: scrollController,
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child: GridView.builder(
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controller: scrollController,
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gridDelegate: SliverGridDelegateWithMaxCrossAxisExtent(
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maxCrossAxisExtent: extent,
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),
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itemBuilder: (gridContext, index) {
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return Thumbnail(
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entry: imageEntryList[index] as Map,
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extent: extent,
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);
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},
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itemCount: imageEntryList.length,
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),
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),
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);
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}
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return null;
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}),
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);
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}
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}
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