139 lines
4.8 KiB
Dart
139 lines
4.8 KiB
Dart
import 'package:carousel_slider/carousel_slider.dart';
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import 'package:flutter/material.dart';
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import 'package:smooth_page_indicator/smooth_page_indicator.dart';
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class CarouselSliderWidget<T> extends StatefulWidget {
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final List<T> items;
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final Widget Function(BuildContext context, T item, int index) onPageBuilder;
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final bool withNavs;
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final bool withInds;
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final double? height;
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final double viewportFraction;
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final double aspectRatio;
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final bool enlargeCenterPage;
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final bool autoPlay;
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final bool enableInfiniteScroll;
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final Function()? onLastClick;
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final Function(int index, CarouselPageChangedReason reason)? onPageChanged;
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final CarouselSliderController? controller;
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const CarouselSliderWidget({
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super.key,
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required this.items,
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required this.onPageBuilder,
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this.withNavs = false,
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this.onLastClick,
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this.autoPlay = true,
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this.enableInfiniteScroll = true,
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this.enlargeCenterPage = true,
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this.height = 200,
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this.viewportFraction = 0.9,
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this.aspectRatio = 16 / 9,
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this.withInds = true,
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this.controller,
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this.onPageChanged,
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});
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@override
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State<CarouselSliderWidget<T>> createState() =>
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_CarouselSliderWidgetState<T>();
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}
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class _CarouselSliderWidgetState<T> extends State<CarouselSliderWidget<T>> {
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int activeIndex = 0;
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late final CarouselSliderController _controller =
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widget.controller ?? CarouselSliderController();
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@override
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Widget build(BuildContext context) {
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return Column(
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mainAxisAlignment: MainAxisAlignment.spaceBetween,
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children: [
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CarouselSlider.builder(
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carouselController: _controller,
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itemCount: widget.items.length,
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itemBuilder: (context, index, realIndex) {
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return widget.onPageBuilder(context, widget.items[index], index);
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},
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options: CarouselOptions(
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height: widget.height,
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autoPlay: widget.autoPlay,
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enableInfiniteScroll: widget.enableInfiniteScroll,
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enlargeCenterPage: widget.enlargeCenterPage,
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aspectRatio: widget.aspectRatio,
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viewportFraction: widget.viewportFraction,
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onPageChanged: (index, reason) {
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widget.onPageChanged?.call(index, reason);
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setState(() => activeIndex = index);
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},
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),
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),
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if (widget.withInds || widget.withNavs)
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Padding(
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padding: const EdgeInsets.all(16.0),
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child: Row(
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mainAxisAlignment: MainAxisAlignment.spaceBetween,
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children: [
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if (widget.withInds)
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Expanded(child: Center(child: buildIndicator())),
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if (widget.withNavs)
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Expanded(
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child: Row(
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mainAxisAlignment: MainAxisAlignment.end,
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children: [
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Opacity(
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opacity: activeIndex != 0 ? 1 : 0,
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child: IconButton(
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icon: const Icon(Icons.arrow_back_ios_new_rounded),
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onPressed: () => _controller.previousPage(),
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),
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),
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Container(
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padding: EdgeInsets.all(8),
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decoration: BoxDecoration(
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shape: BoxShape.circle,
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color: Theme.of(context).primaryColor),
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child: InkWell(
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highlightColor: Theme.of(context).primaryColor,
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onTap: () {
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if (activeIndex == widget.items.length - 1) {
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if (widget.onLastClick != null) {
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widget.onLastClick!();
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}
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} else {
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_controller.nextPage();
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}
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},
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child: const Icon(Icons.arrow_forward_ios_rounded),
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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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Widget buildImage(String urlImage, int index) => Container(
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margin: const EdgeInsets.symmetric(horizontal: 12),
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color: Colors.grey,
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child: Image.network(
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urlImage,
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fit: BoxFit.cover,
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),
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);
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Widget buildIndicator() => AnimatedSmoothIndicator(
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activeIndex: activeIndex,
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count: widget.items.length,
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effect: ExpandingDotsEffect(
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dotWidth: 10,
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dotHeight: 10,
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activeDotColor: Theme.of(context).primaryColor,
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dotColor: Theme.of(context).colorScheme.onSurface,
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),
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);
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}
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