Flutter:如何使 Web View 大小适合屏幕？

Question

我是 Flutter 新手，

尝试在flutter中使用web view，但是web view的尺寸比屏幕大。

我想让网页大小适合手机屏幕大小。

我该怎么做？

这是我现在得到的:

我想看:

这是我的代码:

导入'package:flutter/material.dart';

导入'package:flutter_webview_plugin/flutter_webview_plugin.dart';

class CoursesInformation extends StatefulWidget {
  @override
  _WebViewExampleState createState() => _WebViewExampleState();
}

class _WebViewExampleState extends State<CoursesInformation> {
  TextEditingController controller = TextEditingController();
  FlutterWebviewPlugin flutterWebviewPlugin = FlutterWebviewPlugin();
  var urlString = "https://shoham.biu.ac.il/BiuCoursesViewer/MainPage.aspx";

  launchUrl() {
    setState(() {
      urlString = controller.text;
     flutterWebviewPlugin.reloadUrl(urlString);
       flutterWebviewPlugin.launch(urlString,
              rect: new Rect.fromLTWH(
                  0.0, 
                  0.0, 
                  MediaQuery.of(context).size.width, 
                  300.0));
    });
  }

  @override
  void initState() {
    super.initState();

    flutterWebviewPlugin.onStateChanged.listen((WebViewStateChanged wvs) {
      print(wvs.type);
    });
  }

  @override
  Widget build(BuildContext context) {
    return Directionality(
    textDirection: TextDirection.rtl,
    child: WebviewScaffold(
      appBar: AppBar(
        title: Text('מידע על קורסים'),
        centerTitle: true
      ),
      url: urlString,
      withZoom: true,
      scrollBar: true,
      withJavascript: true,
      useWideViewPort: true,

      withLocalStorage: true,
        ));
  }
}

Answer 1

你可以试试我的插件flutter_inappwebview ，这是一个 Flutter 插件，允许您添加内联 WebViews 或打开应用内浏览器窗口，并且有很多事件、方法和选项来控制 WebViews。

在您的情况下，您可以启用 DESKTOP通过选项 preferredContentMode: UserPreferredContentMode.DESKTOP

以下是您的 URL 示例:

import 'dart:async';
import 'package:flutter/material.dart';
import 'package:flutter_inappwebview/flutter_inappwebview.dart';

Future main() async {
  WidgetsFlutterBinding.ensureInitialized();
  runApp(new MyApp());
}

class MyApp extends StatefulWidget {
  @override
  _MyAppState createState() => new _MyAppState();
}

class _MyAppState extends State<MyApp> {
  InAppWebViewController webView;

  @override
  void initState() {
    super.initState();
  }

  @override
  void dispose() {
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: const Text('InAppWebView Example'),
        ),
        body: Container(
            child: Column(children: <Widget>[
          Expanded(
              child: InAppWebView(
            initialUrl:
                "https://shoham.biu.ac.il/BiuCoursesViewer/MainPage.aspx",
            initialHeaders: {},
            initialOptions: InAppWebViewGroupOptions(
              crossPlatform: InAppWebViewOptions(
                  debuggingEnabled: true,
                  preferredContentMode: UserPreferredContentMode.DESKTOP),
            ),
            onWebViewCreated: (InAppWebViewController controller) {
              webView = controller;
            },
            onLoadStart: (InAppWebViewController controller, String url) {

            },
            onLoadStop: (InAppWebViewController controller, String url) async {

            },
          ))
        ])),
      ),
    );
  }
}

这是截图: