cached_network_image_builder 0.1.0

A widget to cache your network image check it if it has already stored with downloading it through basic http request, so doesn't need to download it again.

example/lib/main.dart

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

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
        visualDensity: VisualDensity.adaptivePlatformDensity,
      ),
      home: MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  MyHomePage({Key key, this.title}) : super(key: key);

  final String title;

  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  int _counter = 0;

  void _incrementCounter() {
    setState(() {
      _counter++;
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: Padding(
        padding: EdgeInsets.all(8.0),
        child: ListView(
          children: <Widget>[
            Text(
              'You have pushed the button this many times:',
            ),
            Text(
              '$_counter',
              style: Theme.of(context).textTheme.headline4,
            ),
            CachedNetworkImageBuilder(
              url: "misformatted_url_or_url_that_doesn't_contain_image",
              builder: (image) {
                return Center(child: Image.file(image));
              },
              // Optional Placeholder widget until image loaded from url
              placeHolder: LinearProgressIndicator(),
              // Optional error widget
              errorWidget: Image.asset('assets/images/error_image.png'),
              // Optional describe your image extensions default values are; jpg, jpeg, gif and png
              imageExtensions: ['jpg', 'png'],
            ),
            SizedBox(height: 40),
            CachedNetworkImageBuilder(
              url: "https://cdn.pixabay.com/photo/2020/05/17/20/21/cat-5183427_1280.jpg",
              builder: (image) {
                return Center(child: Image.file(image));
              },
            ),
            SizedBox(height: 40),
            CachedNetworkImageBuilder(
              url: "https://cdn.pixabay.com/photo/2020/05/30/17/18/wind-power-plant-5239642_1280.jpg",
              builder: (image) {
                return Center(child: Image.file(image));
              },
            ),
          ],
        ),
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: _incrementCounter,
        tooltip: 'Increment',
        child: Icon(Icons.add),
      ),
    );
  }
}