rxcache_network_image 0.0.3

Easy download image from network and show in widget with rxcacheNetworkImage fast load image from network

example/lib/main.dart

import 'package:flutter/material.dart';
import 'package:rxcache_network_image/rxcache_network_image.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
        useMaterial3: true,
      ),
      home: const MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({super.key, required this.title});

  // This widget is the home page of your application. It is stateful, meaning
  // that it has a State object (defined below) that contains fields that affect
  // how it looks.

  // This class is the configuration for the state. It holds the values (in this
  // case the title) provided by the parent (in this case the App widget) and
  // used by the build method of the State. Fields in a Widget subclass are
  // always marked "final".

  final String title;

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  final cacheManager = RxCacheManager();
  @override
  void initState() {
    ///preload and cache disk
    for (final url in urls) {
      cacheManager.download(url: url).then((value) => null);
    }
    super.initState();
  }

  @override
  void didChangeDependencies() {
    super.didChangeDependencies();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        backgroundColor: Theme.of(context).colorScheme.inversePrimary,
        title: Text(widget.title),
      ),
      body: Column(
        mainAxisAlignment: MainAxisAlignment.center,
        children: <Widget>[
          Expanded(
              child: ListView.builder(
            itemCount: urls.length,
            itemBuilder: (context, index) {
              return RxImage.cacheNetwork(
                url: urls[index],
              );
            },
          ))
        ],
      ),
    );
  }
}

const urls = [
  "https://images.pexels.com/photos/19564349/pexels-photo-19564349.jpeg?auto=compress&cs=tinysrgb&w=1260&h=750&dpr=2",
  "https://images.pexels.com/photos/19560944/pexels-photo-19560944.jpeg?auto=compress&cs=tinysrgb&w=1260&h=750&dpr=2",
  "https://images.pexels.com/photos/17889085/pexels-photo-17889085.jpeg?auto=compress&cs=tinysrgb&w=1260&h=750&dpr=2",
  "https://images.pexels.com/photos/19542480/pexels-photo-19542480.jpeg?auto=compress&cs=tinysrgb&w=1260&h=750&dpr=2",
  "https://images.pexels.com/photos/18325566/pexels-photo-18325566.jpeg?auto=compress&cs=tinysrgb&w=1260&h=750&dpr=2",
  "https://images.pexels.com/photos/3509971/pexels-photo-3509971.jpeg?auto=compress&cs=tinysrgb&w=1260&h=750&dpr=2",
  "https://images.pexels.com/photos/1998435/pexels-photo-1998435.jpeg?auto=compress&cs=tinysrgb&w=1260&h=750&dpr=2"
];