dart - 如何在 StatelessWidget 中使用 showModalBottomSheet？

Question

我试着这样写

showModalBottomSheet(
   context: context, // I got error here (Undefined name 'context'.dart(undefined_identifier))
   builder: (context){

   return Container(

   );
);

我在 context: context 上出错，错误信息是

Undefined name 'context'.dart(undefined_identifier)

Answer 1

这就是您在 StatelessWidget 中调用 showModalBottomSheet 的方式

class TestStatelessWidget extends StatelessWidget{
  @override
  Widget build(BuildContext context) {

    return RaisedButton(
      child: Text('Press me'),
      onPressed: ()=>showPress(context),
    );
  }

  void showPress(BuildContext context){
    showModalBottomSheet(context:context, builder: (context){
      return Text('hello');
    });
  }



}