flutter_webview_plugin_pro 0.3.5+36

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Flutter WebView Plugin #

pub package

Plugin that allows Flutter to communicate with a native WebView.

Warning: The webview is not integrated in the widget tree, it is a native view on top of the flutter view. You won't be able see snackbars, dialogs, or other flutter widgets that would overlap with the region of the screen taken up by the webview.

Getting Started #

For help getting started with Flutter, view our online documentation.

iOS #

In order for plugin to work correctly, you need to add new key to ios/Runner/Info.plist


NSAllowsArbitraryLoadsInWebContent is for iOS 10+ and NSAllowsArbitraryLoads for iOS 9.

How it works #

Launch WebView Fullscreen with Flutter navigation #

new MaterialApp(
      routes: {
        "/": (_) => new WebviewScaffold(
          url: "https://www.google.com",
          appBar: new AppBar(
            title: new Text("Widget webview"),

Optional parameters hidden and initialChild are available so that you can show something else while waiting for the page to load. If you set hidden to true it will show a default CircularProgressIndicator. If you additionally specify a Widget for initialChild you can have it display whatever you like till page-load.

e.g. The following will show a read screen with the text 'waiting.....'.

return new MaterialApp(
  title: 'Flutter WebView Demo',
  theme: new ThemeData(
    primarySwatch: Colors.blue,
  routes: {
    '/': (_) => const MyHomePage(title: 'Flutter WebView Demo'),
    '/widget': (_) => new WebviewScaffold(
      url: selectedUrl,
      appBar: new AppBar(
        title: const Text('Widget webview'),
      withZoom: true,
      withLocalStorage: true,
      hidden: true,
      initialChild: Container(
        color: Colors.redAccent,
        child: const Center(
          child: Text('Waiting.....'),

FlutterWebviewPlugin provide a singleton instance linked to one unique webview, so you can take control of the webview from anywhere in the app

listen for events

final flutterWebviewPlugin = new FlutterWebviewPlugin();

flutterWebviewPlugin.onUrlChanged.listen((String url) {


Listen for scroll event in webview #

final flutterWebviewPlugin = new FlutterWebviewPlugin();
flutterWebviewPlugin.onScrollYChanged.listen((double offsetY) { // latest offset value in vertical scroll
  // compare vertical scroll changes here with old value

flutterWebviewPlugin.onScrollXChanged.listen((double offsetX) { // latest offset value in horizontal scroll
  // compare horizontal scroll changes here with old value

Note: Do note there is a slight difference is scroll distance between ios and android. Android scroll value difference tends to be larger than ios devices.

Hidden WebView #

final flutterWebviewPlugin = new FlutterWebviewPlugin();

flutterWebviewPlugin.launch(url, hidden: true);

Close launched WebView #


Webview inside custom Rectangle #

final flutterWebviewPlugin = new FlutterWebviewPlugin();

  fullScreen: false,
  rect: new Rect.fromLTWH(

Injecting custom code into the webview #

Use flutterWebviewPlugin.evalJavaScript(String code). This function must be run after the page has finished loading (i.e. listen to onStateChanged for events where state is finishLoad).

If you have a large amount of JavaScript to embed, use an asset file. Add the asset file to pubspec.yaml, then call the function like:

Future<String> loadJS(String name) async {
  var givenJS = rootBundle.loadString('assets/$name.js');
  return givenJS.then((String js) {
    flutterWebViewPlugin.onStateChanged.listen((viewState) async {
      if (viewState.type == WebViewState.finishLoad) {

Webview Events #

  • Stream<Null> onDestroy
  • Stream<String> onUrlChanged
  • Stream<WebViewStateChanged> onStateChanged
  • Stream<double> onScrollXChanged
  • Stream<double> onScrollYChanged
  • Stream<String> onError

Don't forget to dispose webview flutterWebviewPlugin.dispose()

Webview Functions #

Future<Null> launch(String url, {
   Map<String, String> headers: null,
   bool withJavascript: true,
   bool clearCache: false,
   bool clearCookies: false,
   bool hidden: false,
   bool enableAppScheme: true,
   Rect rect: null,
   String userAgent: null,
   bool withZoom: false,
   bool withLocalStorage: true,
   bool withLocalUrl: true,
   bool scrollBar: true,
   bool supportMultipleWindows: false,
   bool appCacheEnabled: false,
   bool allowFileURLs: false,
Future<String> evalJavascript(String code);
Future<Map<String, dynamic>> getCookies();
Future<Null> cleanCookies();
Future<Null> resize(Rect rect);
Future<Null> show();
Future<Null> hide();
Future<Null> reloadUrl(String url);
Future<Null> close();
Future<Null> reload();
Future<Null> goBack();
Future<Null> goForward();
Future<Null> stopLoading();

0.3.5+5 #

0.3.5+35 #

0.3.5+36 #

0.3.3 #

  • BREAKING CHANGE - AndroidX support

0.3.2 #

  • enable Javascript in iOS, support abort loading specific URLs
  • add resizeToAvoidBottomInset to WebviewScaffold; #301

0.3.1 #

  • Add support for geolocation Android
  • fix No269: Can't load target="_blank" links on iOS
  • fix: reloadUrl will not return Future
  • Fix height of keyboard
  • Fix Hide/Show WebView
  • hotfix widget back to initialChild after webview is tapped on Android

0.3.0 #

  • Fixes rect capture issue. Ensures WebView remains in the correct place on screen even when keyboard appears.
  • Fixed iOS crash issue with Flutter >= 0.10.2.
  • Added new clearCookies feature.
  • Added support for hidden and initialChild feature to show page loading view.
  • Added supportMultipleWindows: enables Multiple Window Support on Android.
  • Added appCacheEnabled: enables Application Caches API on Android.
  • Added allowFileURLs: allows file:// local file URLs.
  • iOS Now supports: reload, goBack, and goForward.
  • iOS Bug fix didFailNavigation #77
  • Updated Android compileSdkVersion to 27 matching offical Flutter plugins.
  • Fixed Android reloadUrl so settings are not cleared.
  • Enabled compatible Mixed Content Mode on Android.

0.2.1 #

  • Added webview scrolling listener
  • Added stopLoading() method

0.2.0 #

  • update sdk
  • prevent negative webview height in scaffold
  • handle type error in getCookies
  • Support file upload via WebView on Android
  • fix WebviewScaffold crash on iOS
  • Scrollbar functionality to Web view
  • Add support of HTTP errors
  • Add headers when loading url

0.1.6 #

  • fix onStateChanged
  • Taking safe areas into account for bottom bars
  • iOS
    • withLocalUrl option for iOS > 9.0
  • Android
    • add reload, goBack and foForward function

0.1.5 #

  • iOS use WKWebView instead of UIWebView

0.1.4 #

  • support localstorage for ANDROID

0.1.3 #

  • support zoom in webview

0.1.2 #

  • support bottomNavigationBar and persistentFooterButtons on webview scaffold

0.1.1 #

  • support back button navigation for Android
    • if cannot go back, it will trigger onDestroy
  • support preview dart2

0.1.0+1 #

  • fix Android close webview

0.1.0 #

  • iOS && Android:

    • get cookies
    • eval javascript
    • user agent setting
    • state change event
    • embed in rectangle or fullscreen if null
    • hidden webview
  • Android

    • adding Activity in manifest is not needed anymore
  • Add WebviewScaffold

0.0.9 #

  • Android: remove the need to use FlutterActivity as base activity

0.0.5 #

  • fix "onDestroy" event for iOS #4
  • fix fullscreen mode for iOS #5

0.0.4 #

  • IOS implementation
  • Update to last version of Flutter

0.0.3 #

  • Documentation

0.0.2 #

  • Initial version for Android


flutter_webview_plugin_example #

Demonstrates how to use the flutter_webview_plugin plugin.

Getting Started #

For help getting started with Flutter, view our online documentation.

Use this package as a library

1. Depend on it

Add this to your package's pubspec.yaml file:

  flutter_webview_plugin_pro: ^0.3.5+36

2. Install it

You can install packages from the command line:

with Flutter:

$ flutter pub get

Alternatively, your editor might support flutter pub get. Check the docs for your editor to learn more.

3. Import it

Now in your Dart code, you can use:

import 'package:flutter_webview_plugin_pro/flutter_webview_plugin_pro.dart';
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Learn more about scoring.

We analyzed this package on Oct 22, 2019, and provided a score, details, and suggestions below. Analysis was completed with status completed using:

  • Dart: 2.5.1
  • pana: 0.12.21
  • Flutter: 1.9.1+hotfix.4


Detected platforms: Flutter

References Flutter, and has no conflicting libraries.

Health suggestions

Format lib/src/base.dart.

Run flutter format to format lib/src/base.dart.

Format lib/src/webview_scaffold.dart.

Run flutter format to format lib/src/webview_scaffold.dart.


Package Constraint Resolved Available
Direct dependencies
Dart SDK >=2.0.0 <3.0.0
flutter 0.0.0
Transitive dependencies
collection 1.14.11 1.14.12
meta 1.1.7
sky_engine 0.0.99
typed_data 1.1.6
vector_math 2.0.8