79 lines
2.7 KiB
Dart
79 lines
2.7 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:flutter/services.dart';
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import 'package:photo_view/photo_view_gallery.dart';
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import 'data_provider/data_provider.dart';
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import 'package:photo_view/photo_view.dart';
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class FullScreenImageView extends StatefulWidget {
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const FullScreenImageView(
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{Key? key,
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required this.idx,
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required this.items,
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required this.provider})
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: super(key: key);
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final int idx;
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final List<Item> items;
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final DataProvider provider;
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@override
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State<FullScreenImageView> createState() => _FullScreenImageViewState();
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}
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class _FullScreenImageViewState extends State<FullScreenImageView> {
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late final PageController _controller =
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PageController(initialPage: widget.idx - 1);
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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appBar: AppBar(title: Text(widget.items[widget.idx - 1].name)),
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body: Center(
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child: CallbackShortcuts(
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bindings: {
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const SingleActivator(LogicalKeyboardKey.arrowRight): () =>
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_controller.nextPage(
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duration: const Duration(milliseconds: 400),
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curve: Curves.ease),
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const SingleActivator(LogicalKeyboardKey.arrowLeft): () =>
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_controller.previousPage(
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duration: const Duration(milliseconds: 400),
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curve: Curves.ease),
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},
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child: Focus(
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autofocus: true,
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child: PhotoViewGallery.builder(
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scrollPhysics: const BouncingScrollPhysics(),
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builder: (BuildContext context, int index) {
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return PhotoViewGalleryPageOptions(
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imageProvider:
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widget.provider.getImageProvider(widget.items[index].uri),
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initialScale: PhotoViewComputedScale.contained,
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minScale: PhotoViewComputedScale.contained,
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heroAttributes:
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PhotoViewHeroAttributes(tag: widget.items[index].name),
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);
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},
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itemCount: widget.items.length,
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loadingBuilder: (context, event) => Center(
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child: SizedBox(
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width: 20.0,
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height: 20.0,
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child: CircularProgressIndicator(
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value: event == null || event.expectedTotalBytes == null
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? null
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: event.cumulativeBytesLoaded /
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event.expectedTotalBytes!,
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),
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),
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),
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backgroundDecoration: const BoxDecoration(color: Colors.white),
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pageController: _controller,
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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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