I am Developing an android app which has a Flutter WebView Plugin to show a web page. It works perfectly on my phone (Android 8.1 LG V20). but on my friends phone (Android 9 xiaomi note 7 pro) it shows this error:
My Code: flutter_webview_plugin: ^0.3.8
import 'package:flutter/material.dart';
import 'package:flutter_webview_plugin/flutter_webview_plugin.dart';
class WebPage extends StatefulWidget {
final String url;
WebPage({
this.url,
});
@override
_WebPageState createState() => _WebPageState();
}
class _WebPageState extends State<WebPage> {
@override
void initState() {
super.initState();
print('url = ' + widget.url);
}
@override
Widget build(BuildContext context) {
String link = widget.url;
return WebviewScaffold(
url: link,
appBar: new AppBar(
centerTitle: true,
backgroundColor: Colors.green,
),
displayZoomControls: true,
);
}
}
Any help would be appreciated.
Your friend is seeing this error because as standard on Android 9 and up it has been made illegal to connect to http
domains, which Google deems unsafe.
Instead you have 3 options.
Use the https
variant of your site.
Instead of loading http://window.arian.co.ir
load https://window.arian.co.ir
You can opt out of the security check for the window.arian
domain.
Make a file called network_security_config.xml
and place it in the res/xml/
folder of the android
folder.
<?xml version="1.0" encoding="utf-8"?>
<network-security-config>
<domain-config cleartextTrafficPermitted="true">
<domain includeSubdomains="true">window.arian.co.ir</domain>
</domain-config>
</network-security-config>
If you want you can opt out of this security check for all the sites inside the WebView
by placing the android:usesCleartextTraffic="true"
on the Application
tag.
In your android
folder navigate to the AndroidManifest.xml
<application
android:name="io.flutter.app.FlutterApplication"
android:icon="@mipmap/ic_launcher"
android:usesCleartextTraffic="true">
See documentation: