Flutter 向上滑动面板

Question

Flutter程序PROFILE页面的上滑面板功能无法将参数类型'JsObject'分配给参数类型'BuildContext'

  // Panel Body
 SingleChildScrollView _panelBody(ScrollController controller) {
   double hPadding = 40;
   return SingleChildScrollView(
               controller: controller,
               physics: const ClampingScrollPhysics(),
               child: Column(
                  children: <Widget>[
                    Container(
                      padding: EdgeInsets.symmetric(horizontal: hPadding),

                      height: MediaQuery.of(context).size.height * 0.35,
                                             ^ context is the one that sending error signals which is The argument type 'JsObject' can't be assigned to the parameter type 'BuildContext'. I imported the dart.js that it recommended yet it did not fix the error
                    )
                  ],
               ),
             );
 }

Answer 1

需要在_panelBody函数中传递buildContext。

 SingleChildScrollView _panelBody(ScrollController controller, BuildContext context) {
   double hPadding = 40;
   return SingleChildScrollView(
               controller: controller,
               physics: const ClampingScrollPhysics(),
               child: Column(
                  children: <Widget>[
                    Container(
                      padding: EdgeInsets.symmetric(horizontal: hPadding),
                      height: MediaQuery.of(context).size.height * 0.35,
                    )
                  ],
               ),
             );
 }

并将小部件称为

_panelBody(controller, context)

Answer 2

在 _panelBody 函数中添加上下文

SingleChildScrollView _panelBody(ScrollController controller, BuildContext context) { // <----HERE

然后无论你在哪里使用方法_panelBody，都使用如下代码

_panelBody(controller,context)