颤振模态底部片材全高

Question

我正在尝试使用ModalBottomSheet. 如何实现模态表的设备屏幕尺寸的 90% 高度。我做了 mediaquery 但它仍然没有给我超过一半的屏幕尺寸。我该如何解决这个问题？

这是代码：

class _TestFileState extends State<TestFile> {
  modalSheet() {
    showModalBottomSheet(
        context: context,
        backgroundColor: Colors.white,
        shape: RoundedRectangleBorder(
          borderRadius: BorderRadius.only(
              topLeft: Radius.circular(15.0), topRight: Radius.circular(15.0)),
        ),
        builder: (context) {
          return Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            mainAxisSize: MainAxisSize.max,
            children: <Widget>[
              ListTile(
                leading: Icon(Icons.email),
                title: Text('Send email'),
                onTap: () {
                  print('Send email');
                },
              ),
              ListTile(
                leading: Icon(Icons.phone),
                title: Text('Call phone'),
                onTap: () {
                  print('Call phone');
                },
              ),
            ],
          );
        });
  }

  @override
  Widget build(BuildContext context) {
    return SafeArea(
      child: Scaffold(
        appBar: AppBar(
          title: Center(child: Text('Testing Modal Sheet')),
        ),
        body: Center(
          child: InkWell(
            onTap: () {
              modalSheet();
            },
            child: Container(
                color: Colors.indigo,
                height: 40,
                width: 100,
                child: Center(
                  child: Text(
                    'Click Me',
                    style: TextStyle(color: Colors.white),
                  ),
                )),
          ),
        ),
      ),
    );
  }
}

这是输出：

Answer 1

您必须传递 isScrollControlled: true 并使用 mediaquery ，如下所示

showModalBottomSheet(
            isScrollControlled: true,
            context: context,
            builder: (context) {
              return Container(
                height: MediaQuery.of(context).size.height * 0.5,
                color: Colors.red,
                //height: MediaQuery.of(context).size.height,
              );
            });