Flutter inappwebview 滚动在 NestedScrollView TabBarView 内不起作用

Question

我是 Flutter 的新手，我在 TabBarView 中添加了 webview(inappwebview)，但是当我尝试向下滚动网页时，它并没有向下滚动，下面我添加了我的代码和屏幕截图

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

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Welcome to Flutter',
      home: Scaffold(
        body: DefaultTabController(
          length: 5,
          child: Scaffold(
              body: NestedScrollView(
            headerSliverBuilder: (BuildContext context, bool innerBoxIsScrolled) {
              return <Widget>[
                new SliverAppBar(
                  title: Text('Tabs Demo'),
                  pinned: true,
                  floating: true,
                  bottom: TabBar(
                    isScrollable: true,
                    tabs: [
                      Tab(child: Text('Flight')),
                      Tab(child: Text('Train')),
                      Tab(child: Text('Car')),
                      Tab(child: Text('Cycle')),
                      Tab(child: Text('Boat')),
                    ],
                  ),
                ),
              ];
            },
            body: TabBarView(
              children: <Widget>[
                InAppWebView(initialUrlRequest: URLRequest(url: Uri.parse("https://flutter.dev/"))),
                Icon(Icons.directions_transit, size: 350),
                Icon(Icons.directions_car, size: 350),
                Icon(Icons.directions_bike, size: 350),
                Icon(Icons.directions_boat, size: 350),
              ],
            ),
          )),
        ),
      ),
    );
  }
}

截图： page

Answer 1

尝试添加手势检测器，如下所示：

InAppWebView(
gestureRecognizers: Set()..add(Factory<VerticalDragGestureRecognizer>(() => VerticalDragGestureRecognizer())),
initialUrlRequest: URLRequest(url: Uri.parse("https://flutter.dev/"))),
               

如果这不能解决您的问题，这就是您必须查看的地方，手势检测器。