小编The*_*ior的帖子

我正在尝试创建一个个人资料页面，其中用户信息位于顶部。然后在该标签下有一个用于不同视图的选项卡视图。

这是我目前正在使用的代码，当我TabBarView拿出它时不会出现错误，并且如果将它们包装TabBarView进去，则会Expanded出现错误RenderFlex children have non-zero flex but incoming height constraints are unbounded.。

     @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(''),
      ),
      body: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: <Widget>[
          Padding(
            padding: EdgeInsets.all(10.0),
            child: Row(
              children: <Widget>[
                CircleAvatar(
                  minRadius: 45.0,
                  backgroundImage: NetworkImage(
                      'https://www.ienglishstatus.com/wp-content/uploads/2018/04/Anonymous-Whatsapp-profile-picture.jpg'),
                ),
                Padding(
                  padding: EdgeInsets.only(left: 10.0),
                  child: Column(
                    crossAxisAlignment: CrossAxisAlignment.start,
                    children: <Widget>[
                      Text(
                        'Testing Name',
                        style: TextStyle(
                          fontSize: 22.0,
                          color: Colors.grey.shade800,
                        ),
                      ),
                      Text(
                        '@testing_username',
                        style: TextStyle(
                          fontSize: 13.0,
                          color: …

我正在尝试通过 get 请求发送查询，问题是我不断收到 java.lang.IllegalArgumentException: unexpected host

   HttpUrl url = new HttpUrl.Builder()
            .scheme("http")
            .host("10.0.2.2" + "/api/" + 7) // This is where the error is coming in
            .addQueryParameter("lat", deviceLat[0])
            .addQueryParameter("long", deviceLong[0])
            .build();


    Request request = new Request.Builder()
            .url(url)
            .build();

感谢所有帮助:)