D1APP-93 floating back button added to pageview
This commit is contained in:
MohammadTaha Basiri
parent
34ac592524
commit
84af011e4f
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@ -1,9 +1,14 @@
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import 'package:carousel_slider/carousel_slider.dart';
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import 'package:didvan/config/design_config.dart';
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import 'package:didvan/config/theme_data.dart';
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import 'package:didvan/constants/app_icons.dart';
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import 'package:didvan/pages/home/widgets/multitype_overview.dart';
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import 'package:didvan/utils/date_time.dart';
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import 'package:didvan/widgets/animated_visibility.dart';
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import 'package:didvan/widgets/didvan/card.dart';
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import 'package:didvan/widgets/didvan/divider.dart';
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import 'package:didvan/widgets/didvan/text.dart';
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import 'package:didvan/widgets/ink_wrapper.dart';
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import 'package:didvan/widgets/item_title.dart';
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import 'package:didvan/widgets/skeleton_image.dart';
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import 'package:didvan/pages/home/widgets/tag_item.dart';
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@ -36,124 +41,140 @@ class _DidvanPageViewState extends State<DidvanPageView> {
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@override
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Widget build(BuildContext context) {
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final double deviceTopPadding = MediaQuery.of(context).padding.top;
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return Directionality(
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textDirection: TextDirection.ltr,
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child: CarouselSlider.builder(
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itemCount: widget.items.length,
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options: CarouselOptions(
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onPageChanged: (index, reason) => widget.onPageChanged(index),
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height: double.infinity,
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initialPage: widget.initialIndex,
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viewportFraction: 0.94,
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enableInfiniteScroll: false,
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),
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itemBuilder: (context, index, realIndex) => Directionality(
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textDirection: TextDirection.rtl,
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child: SizedBox(
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height: MediaQuery.of(context).size.height,
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child: SingleChildScrollView(
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controller:
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index == widget.currentIndex ? widget.scrollController : null,
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physics: const BouncingScrollPhysics(),
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padding: EdgeInsets.only(
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left: 4,
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right: 4,
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top: 16 + deviceTopPadding,
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bottom: 92,
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),
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child: DidvanCard(
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padding: EdgeInsets.zero,
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enableBorder: false,
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child: Builder(
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builder: (context) {
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final item = widget.items[index];
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if (item == null) {
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return const SizedBox();
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}
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return Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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SkeletonImage(
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imageUrl: item.image,
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aspectRatio: 16 / 9,
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),
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const SizedBox(height: 20),
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Padding(
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padding: const EdgeInsets.symmetric(horizontal: 16),
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child: DidvanText(
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item.title,
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style: Theme.of(context).textTheme.subtitle1,
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),
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),
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const SizedBox(height: 8),
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Padding(
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padding: const EdgeInsets.symmetric(horizontal: 16),
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child: _subtitle(item),
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),
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for (var i = 0; i < item.contents.length; i++)
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Padding(
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padding: const EdgeInsets.symmetric(
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horizontal: 16,
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vertical: 4,
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return Stack(
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children: [
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Directionality(
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textDirection: TextDirection.ltr,
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child: CarouselSlider.builder(
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itemCount: widget.items.length,
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options: CarouselOptions(
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onPageChanged: (index, reason) => widget.onPageChanged(index),
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height: double.infinity,
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initialPage: widget.initialIndex,
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viewportFraction: 0.94,
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enableInfiniteScroll: false,
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),
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itemBuilder: (context, index, realIndex) => Directionality(
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textDirection: TextDirection.rtl,
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child: SizedBox(
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height: MediaQuery.of(context).size.height,
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child: SingleChildScrollView(
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controller: index == widget.currentIndex
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? widget.scrollController
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: null,
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physics: const BouncingScrollPhysics(),
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padding: EdgeInsets.only(
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left: 4,
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right: 4,
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top: 16 + deviceTopPadding,
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bottom: 92,
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),
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child: DidvanCard(
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padding: EdgeInsets.zero,
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enableBorder: false,
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child: Builder(
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builder: (context) {
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final item = widget.items[index];
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if (item == null) {
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return const SizedBox();
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}
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return Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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SkeletonImage(
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imageUrl: item.image,
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aspectRatio: 16 / 9,
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),
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child: _contentBuilder(item, i),
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),
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if (item.tags.isNotEmpty) const SizedBox(height: 20),
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Padding(
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padding: const EdgeInsets.symmetric(horizontal: 16),
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child: Wrap(
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spacing: 8,
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runSpacing: 8,
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children: [
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for (var i = 0; i < item.tags.length; i++)
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TagItem(label: item.tags[i].label),
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],
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),
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),
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const Padding(
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padding: EdgeInsets.only(
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left: 16,
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right: 16,
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top: 16,
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),
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child: DidvanDivider(verticalPadding: 0),
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),
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const Padding(
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padding: EdgeInsets.symmetric(horizontal: 16.0),
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child: ItemTitle(title: 'مطالب مشابه'),
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),
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if (item.relatedContents.isEmpty)
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for (var i = 0; i < 3; i++)
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const SizedBox(height: 20),
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Padding(
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padding: const EdgeInsets.only(
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bottom: 8,
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padding:
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const EdgeInsets.symmetric(horizontal: 16),
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child: DidvanText(
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item.title,
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style: Theme.of(context).textTheme.subtitle1,
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),
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),
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const SizedBox(height: 8),
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Padding(
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padding:
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const EdgeInsets.symmetric(horizontal: 16),
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child: _subtitle(item),
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),
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for (var i = 0; i < item.contents.length; i++)
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Padding(
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padding: const EdgeInsets.symmetric(
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horizontal: 16,
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vertical: 4,
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),
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child: _contentBuilder(item, i),
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),
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if (item.tags.isNotEmpty)
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const SizedBox(height: 20),
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Padding(
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padding:
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const EdgeInsets.symmetric(horizontal: 16),
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child: Wrap(
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spacing: 8,
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runSpacing: 8,
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children: [
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for (var i = 0; i < item.tags.length; i++)
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TagItem(label: item.tags[i].label),
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],
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),
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),
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const Padding(
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padding: EdgeInsets.only(
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left: 16,
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right: 16,
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top: 16,
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),
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child: MultitypeOverview.placeholder,
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child: DidvanDivider(verticalPadding: 0),
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),
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for (var i = 0; i < item.relatedContents.length; i++)
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Padding(
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padding: const EdgeInsets.only(
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bottom: 8,
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left: 16,
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right: 16,
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const Padding(
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padding: EdgeInsets.symmetric(horizontal: 16.0),
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child: ItemTitle(title: 'مطالب مشابه'),
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),
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child: MultitypeOverview(
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item: item.relatedContents[i],
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onMarkChanged: (id, value) {},
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),
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),
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const SizedBox(height: 8),
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],
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);
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},
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if (item.relatedContents.isEmpty)
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for (var i = 0; i < 3; i++)
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Padding(
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padding: const EdgeInsets.only(
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bottom: 8,
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left: 16,
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right: 16,
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),
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child: MultitypeOverview.placeholder,
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),
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for (var i = 0;
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i < item.relatedContents.length;
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i++)
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Padding(
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padding: const EdgeInsets.only(
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bottom: 8,
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left: 16,
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right: 16,
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),
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child: MultitypeOverview(
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item: item.relatedContents[i],
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onMarkChanged: (id, value) {},
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),
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),
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const SizedBox(height: 8),
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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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),
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),
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),
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),
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Positioned(
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child: _BackButton(scrollController: widget.scrollController),
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right: 24,
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top: 24 + deviceTopPadding,
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),
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],
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);
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}
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@ -219,3 +240,66 @@ class _DidvanPageViewState extends State<DidvanPageView> {
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}
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}
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}
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class _BackButton extends StatefulWidget {
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final ScrollController scrollController;
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const _BackButton({Key? key, required this.scrollController})
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: super(key: key);
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@override
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__BackButtonState createState() => __BackButtonState();
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}
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class __BackButtonState extends State<_BackButton> {
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bool _isVisible = false;
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@override
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void didUpdateWidget(covariant _BackButton oldWidget) {
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_isVisible = false;
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_handleScroll();
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super.didUpdateWidget(oldWidget);
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}
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@override
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void initState() {
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_handleScroll();
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super.initState();
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}
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void _handleScroll() {
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widget.scrollController.addListener(() {
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final position = widget.scrollController.position.pixels;
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final size = MediaQuery.of(context).size.height * 0.3;
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if (position > size && _isVisible == false) {
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setState(() {
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_isVisible = true;
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});
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}
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if (position < size && _isVisible == true) {
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setState(() {
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_isVisible = false;
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});
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}
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});
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}
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@override
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Widget build(BuildContext context) {
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return AnimatedVisibility(
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duration: DesignConfig.lowAnimationDuration,
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isVisible: _isVisible,
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child: InkWrapper(
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borderRadius: DesignConfig.lowBorderRadius,
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onPressed: Navigator.of(context).pop,
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child: Container(
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decoration: BoxDecoration(
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color: Theme.of(context).colorScheme.splash,
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border: Border.all(color: Theme.of(context).colorScheme.border),
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borderRadius: DesignConfig.lowBorderRadius,
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),
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child: const Icon(DidvanIcons.back_regular, size: 32),
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),
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),
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);
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}
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}
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