First, import the required packages for Lazy Loading and Slideshow in your Flutter project.
Create a GridView widget with a builder function and set its itemCount to the total number of images you want to display.
Define your image URLs or paths in a list.
Implement a lazy loading feature by using the package lazyloadscrollview. This package allows you to load more data as the user scrolls down the screen.
In the builder function of the GridView, add a conditional statement to check whether the last item of the list has been reached. If it has, then load more data using the lazy loading package.
Add a Slideshow widget to your GridView. The slideshow can be set up to automatically display the images, or the user can manually swipe through them.
Finally, customize the slideshow widget to fit your design requirements.
Example code:
import 'package:flutter/material.dart';
import 'package:lazy_load_scrollview/lazy_load_scrollview.dart';
import 'package:flutter_slideshow/flutter_slideshow.dart';
class MyGridView extends StatefulWidget {
@override
_MyGridViewState createState() => _MyGridViewState();
}
class _MyGridViewState extends State<MyGridView> {
List<String> _imageUrls = [
'https://example.com/image1.jpg',
'https://example.com/image2.jpg',
'https://example.com/image3.jpg',
'https://example.com/image4.jpg',
];
int _currentIndex = 0;
@override
Widget build(BuildContext context) {
return LazyLoadScrollView(
onEndOfPage: () => _loadMoreData(),
child: GridView.builder(
itemCount: _imageUrls.length,
gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
crossAxisCount: 2,
mainAxisSpacing: 10,
crossAxisSpacing: 10,
),
itemBuilder: (BuildContext context, int index) {
if (index == _imageUrls.length - 1) {
return _buildLoading();
} else {
return _buildImage(index);
}
},
),
);
}
Widget _buildLoading() {
return Center(
child: CircularProgressIndicator(),
);
}
Widget _buildImage(int index) {
return GestureDetector(
onTap: () => _showImage(index),
child: Image.network(
_imageUrls[index],
fit: BoxFit.cover,
),
);
}
void _loadMoreData() {
// Load more data here...
}
void _showImage(int index) {
setState(() {
_currentIndex = index;
});
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text("My Images"),
),
body: Column(
children: [
Expanded(
child: Slideshow(
autoPlay: true,
width: double.infinity,
height: 200.0,
indicators: true,
children: _imageUrls.map((url) {
return Image.network(
url,
fit: BoxFit.cover,
);
}).toList(),
),
),
Expanded(
child: LazyLoadScrollView(
onEndOfPage: () => _loadMoreData(),
child: GridView.builder(
itemCount: _imageUrls.length,
gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
crossAxisCount: 2,
mainAxisSpacing: 10,
crossAxisSpacing: 10,
),
itemBuilder: (BuildContext context, int index) {
if (index == _imageUrls.length - 1) {
return _buildLoading();
} else {
return _buildImage(index);
}
},
),
),
),
],
),
);
}
}
Please start posting anonymously - your entry will be published after you log in or create a new account. This space is reserved only for answers. If you would like to engage in a discussion, please instead post a comment under the question or an answer that you would like to discuss
Asked: 2022-08-29 11:00:00 +0000
Seen: 10 times
Last updated: Oct 21 '21
In a new Flutter project on Android Studio, is it possible to not have any libs or main.dart file?
How can Google calendar events be generated on the server-side using Flutter?
How can I retrieve an SVG image from a URL in Flutter?
How can I combine streams of different types in Dartlang using rxdart?
What are the steps to disable FlutterFire configuration?
How can zooming similar to desktop be achieved in HTML webview browser using Flutter?
How to imitate Http Client calls during flutter testing?
What is the process of invoking a Cloud Function in Firebase through Flutter?