命名参数 'body' 的参数已经是 specified.What 当我们在 flutter 的脚手架中有两个“主体”时我们应该这样做

Question

错误：命名参数 'body' 的参数已经 specified.What 当我们在 flutter 的脚手架中有两个“主体”时我们应该这样做

 Widget build(BuildContext context) {
          return Scaffold(
            appBar: AppBar(
             title: Text(widget.title),
                 ),
               body: Center(
          child: Column(
            mainAxisAlignment: MainAxisAlignment.start,
            children: <Widget>[
              Flexible(
                child: gridView(),
              )
            ],
          ),
        ),

        body: SingleChildScrollView(
              child : Container(
               child: Padding(
                padding: const EdgeInsets.all(5),
                child: Column(
                  mainAxisAlignment: MainAxisAlignment.center,
                  children: <Widget>[
                    Text(
                      "Enter the Device Details",
                      style: TextStyle(
                        color: Colors.white,
                        fontSize: 30,
                        fontWeight: FontWeight.bold,
                      ),
                    ),

Answer 1

可能是这样的：

 @override
 Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title)),
        body: Center(
          child: Column(
            mainAxisAlignment: MainAxisAlignment.start,
            children: <Widget>[
              Flexible(
                child: child: gridView(),
              ),
              Container(
               child: Padding(
                padding: const EdgeInsets.all(5),
                child: Column(
                  mainAxisAlignment: MainAxisAlignment.center,
                  children: <Widget>[
                    Text(
                      "Enter the Device Details",
                      style: TextStyle(
                        color: Colors.white,
                        fontSize: 30,
                        fontWeight: FontWeight.bold,
                      )
                    )
                  ]
                )
               )
              ),
            ],
          ),
        )
    );
  }

命名参数 'body' 的参数已经是 specified.What 当我们在 flutter 的脚手架中有两个“主体”时我们应该这样做

The argument for the named parameter 'body' was already specified.What we should do when we have two "bodys' in a scaffold in flutter

scaffold

flutter