jamesdixon / flutter_local_assets_server

📦 Local server which serves assets to WebView

local_assets_server

HTTP Server which serves local assets

Installation

dependencies:
  local_assets_server: ^1.0.1

flutter packages get

Usage

Check out complete example here

pubspec.yaml

flutter:
  assets:
    - web/

main.dart

import 'dart:io';

import 'package:flutter/material.dart';
import 'package:local_assets_server/local_assets_server.dart';
import 'package:webview_flutter/webview_flutter.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Local Assets Server Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(title: 'Local Assets Server Demo'),
    );
  }
}

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

  final String title;

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

class _MyHomePageState extends State<MyHomePage> {
  bool isListening = false;
  String address;
  int port;
  WebViewController controller;

  void _incrementCounter() {
    controller?.evaluateJavascript('window.increment()');
  }

  @override
  initState() {
    _initServer();

    super.initState();
  }

  _initServer() async {
    final server = new LocalAssetsServer(
      address: InternetAddress.loopbackIPv4,
      assetsBasePath: 'web',
    );

    final address = await server.serve();

    setState(() {
      this.address = address.address;
      port = server.boundPort;
      isListening = true;
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: isListening
          ? WebView(
              debuggingEnabled: true,
              initialUrl: 'http://$address:$port',
              javascriptMode: JavascriptMode.unrestricted,
              onWebViewCreated: (WebViewController controller) {
                this.controller = controller;
              },
            )
          : Center(
              child: CircularProgressIndicator(),
            ),
      floatingActionButton: FloatingActionButton(
        onPressed: _incrementCounter,
        tooltip: 'Increment',
        child: Icon(Icons.add),
      ), // This trailing comma makes auto-formatting nicer for build methods.
    );
  }
}

LICENSE

MIT