[英]flutter web view is not working with ios app
我已經創建了我的第一個 flutter 模塊,它有一個單一的 web 視圖。 它在獨立運行模塊或運行 .ios/Runner 項目時工作正常但是當我將此模塊與我的 ios 應用程序集成並運行該應用程序時,Web 視圖消失了。
飛鏢文件代碼:
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:webview_flutter/webview_flutter.dart';
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Material App',
theme: ThemeData.light(),
home: Home(),
);
}
}
// ignore: must_be_immutable
class Home extends StatelessWidget {
String _url = "https://www.google.com";
final _key = UniqueKey();
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text("Web Viewwww"),
leading: IconButton(
icon: Icon(Icons.arrow_back),
onPressed: () => SystemNavigator.pop(
animated: true) /*Navigator.pop(context, true)*/,
)),
body: Column(
children: [
Expanded(
child: WebView(
key: _key,
javascriptMode: JavascriptMode.unrestricted,
initialUrl: _url))
],
));
}
}
這是我使用的應用程序委托的代碼:
lazy var flutterEngine = FlutterEngine()
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
flutterEngine.run()
return true
}
這是用於導航的 iOS 視圖控制器的代碼
let engin = (UIApplication.shared.delegate as! AppDelegate).flutterEngine
let myflutterVC = FlutterViewController(engine: engin, nibName: nil, bundle: nil)
myflutterVC.modalPresentationStyle = .fullScreen
present(myflutterVC, animated: true, completion: nil)
iOS
為了使插件正常工作,您需要向 ios/Runner/Info.plist 添加新密鑰
<key>NSAppTransportSecurity</key>
<dict>
<key>NSAllowsArbitraryLoads</key>
<true/>
<key>NSAllowsArbitraryLoadsInWebContent</key>
<true/>
如果您的 URL 有一些特殊字符,那么您需要像這樣對 URL 進行編碼,
WebView( initialUrl: Uri.encodeFull(yourUrl), ... )
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