flutter webview_flet webview-优快云博客

本文深入探讨了Flutter中WebView组件的实现细节，展示了如何通过MyWebView类加载并展示网页数据，包括设置初始URL、使用无限制的JavaScript模式以及构建包含标题栏和WebView主体的应用布局。

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//展示网页数据
class MyWebView extends StatefulWidget {
  String url;
  String title;

  MyWebView({Key key, @required this.url, @required this.title});

  @override
  createState() => _PageState(url: url, title: title);
}

class _PageState extends State<MyWebView> {
  String url;
  String title;

  _PageState({Key key, @required this.url, @required this.title});

  final _key = UniqueKey();

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

  @override
  Widget build(BuildContext context) {
    return Scaffold(
        appBar: _setTitle(context),
        body: Column(
          children: [
            Expanded(
                child: WebView(
                    key: _key,
                    javascriptMode: JavascriptMode.unrestricted,
                    initialUrl: url))
          ],
        ));
  }

  _setTitle(context) {
    return new AppBar(
      brightness: Brightness.light,
      title:
          new Text(title, style: TextStyle(color: Colors.black, fontSize: 20)),
      elevation: 1,
      leading: new IconButton(
          icon: new Icon(
            Icons.arrow_back_ios,
            color: Colors.black,
          ),
          onPressed: () {
            Navigator.pop(context);
          }),
      backgroundColor: Colors.white,
      centerTitle: true,
    );
  }
}