给那些不能解决问题的人尝试所有的答案。这些答案是正确的，但不太清楚。

当使用

MediaQuery.of(上下文).viewInsets.bottom)

make sure your context variable is using the one provided by bottom sheet builder property.

c builder:(* * * *) = > MediaQuery.of (c * * * *)

将此添加到路由器链接模态底部表中

 showModalBottomSheet(              
     context: context,
     isScrollControlled: true,
      builder: (BuildContext context) {
      return Messagescr();
      }
    );

在你的脚手架上也去掉这条线:

resizeToAvoidBottomInset : false,
            

为了专注于键盘在BottomSheet - Wrap TextField在Padding Widget如下:

showModalBottomSheet(
              context: context,
              builder: (context) {
                return Container(
                  child: Padding(
                    padding: EdgeInsets.only(
                        bottom: MediaQuery.of(context).viewInsets.bottom),
                    child: TextField(
                      autofocus: true,
                    ),
                  ),
                );
              }); 

简单的解决方案，你可以自定义这个:

Container(
          margin: EdgeInsets.only(left: 15),
          child: InkWell(
              onTap: () {
                showModalBottomSheet(
                    isScrollControlled : true,
                    context: context,
                    backgroundColor: Colors.transparent,
                    builder: (context) {
                      return Container(
                        padding: EdgeInsets.only(top: 15, left: 15, right: 15, bottom: 10),
                        width: double.infinity,
                        decoration: BoxDecoration(
                          color: AppTheme.leadItemColor1,
                          borderRadius: BorderRadius.only(topLeft: Radius.circular(12), topRight: Radius.circular(12)),
                        ),
                        child: Column(
                          children: [
                            _assignTo(widget.viewModel, context),
                            SizedBox(height: 12,),
                            txtComment(widget.viewModel),
                            SizedBox(height: 12,),
                            CRMButton(
                              title: 'Select',
                              onTap: () async {
                                Navigator.pop(context);
                                await widget.viewModel.updateStatus(7, why: "${ConstantData.lostOptions[_selectedNumber]}");
                              },
                            )
                          ],
                        ),
                      );
                    },
                );
              },
              child: CustomTabBarItem1(
                image: widget.viewModel.leadDetail.success.lStatus == 7 ? 'assets/appimages/LeadDetail/icons-03-01.png' : 'assets/appimages/LeadDetail/icons-04-01.png',
                bottomTitle: 'Lost',
                topTitle: widget.viewModel.leadDetail.success.lStatus > 7 ? 'assets/appimages/LeadDetail/Ellipse 61@2x.png' : widget.viewModel.leadDetail.success.lStatus == 7 ? 'assets/appimages/LeadDetail/Group 486-1.png' : 'assets/appimages/LeadDetail/Ellipse-61@3x.png',
                height : widget.viewModel.leadDetail.success.lStatus == 7 ? "0" : "1",
              )),
        ),

要修复此问题

你所需要的就是使用MediaQuery.of(context).viewInsets.bottom填充键盘 为了更保险，设置底部表格对话框的isScrollControlled = true，这将允许底部表格获得所需的全部高度。

请注意

如果您的BottomSheetModel是Column，请确保添加mainAxisSize: mainAxisSize。Min，否则床单会覆盖整个屏幕。 工作与多个TextField或TextFormField

例子

showModalBottomSheet(
        shape: RoundedRectangleBorder(
            borderRadius: BorderRadius.vertical(top: Radius.circular(25.0))),
        backgroundColor: Colors.black,
        context: context,
        isScrollControlled: true,
        builder: (context) => Padding(
          padding: EdgeInsets.only(
                        bottom: MediaQuery.of(context).viewInsets.bottom),
          child: Column(
                crossAxisAlignment: CrossAxisAlignment.start,
                mainAxisSize: MainAxisSize.min,
                children: <Widget>[
                  Padding(
                    padding: const EdgeInsets.symmetric(horizontal: 12.0),
                    child: Text('Enter your address',
                        style: TextStyles.textBody2),
                  ),
                  SizedBox(
                    height: 8.0,
                  ),
                  TextField(
                      decoration: InputDecoration(
                        hintText: 'adddrss'
                      ),
                      autofocus: true,
                      controller: _newMediaLinkAddressController,
                    ),
                  

                  SizedBox(height: 10),
                ],
              ),
        ));

请注意:

shape: RoundedRectangleBorder(
        borderRadius: BorderRadius.vertical(top: Radius.circular(25.0))),

这不是必须的。只是我要创建一个圆形的底页。

更新

Flutter 2.2又打破了改动!”现在你需要再次给底部填充，这样键盘就不会重叠在底部。

只需添加

if (_isEditing) SizedBox(height: MediaQuery.of(context).viewInsets.bottom),

在键盘和隐藏所有其他内容下面的文本框与

if (!_isEditing) Widget(...),