当我设置Textfield
autofocus:false
时,它不会刷新页面,但是当我点击TextField时,键盘显示然后重建的主页面会导致滞后。
这已经有一个星期了。我可以找到与文本字段重建UI相关的问题,但是该解决方案无法应用于我的问题。
当单击按钮时,主页面包含此功能
void addCommentModal() {
showModalBottomSheet(
context: context,
builder: (BuildContext context) {
return Container(
padding:
EdgeInsets.only(bottom: MediaQuery.of(context).viewInsets.bottom),
child: AddCommentModal(
onPost: (String text) {
// APIServices.commentPost(context, i.toString(), text);
Navigator.pop(context);
},
),
);
},
);
}
AddCommentModal
class AddCommentModal extends StatefulWidget {
final ValueChanged<String> onPost;
AddCommentModal({@required this.onPost});
@override
_AddCommentModalState createState() => _AddCommentModalState();
}
class _AddCommentModalState extends State<AddCommentModal> {
final commentController = TextEditingController();
bool _canPost = false;
String defaultProfilePhoto = "";
@override
void initState() {
defaultProfilePhoto = Constants.userFirstName[0].toUpperCase();
super.initState();
}
@override
void dispose() {
commentController.dispose();
super.dispose();
}
@override
Widget build(BuildContext context) {
print("PHOTO: ${Constants.userProfilePhoto}");
return Container(
padding: EdgeInsets.all(10),
child: Row(
children: <Widget>[
Container(
width: 50,
height: 50,
child: ClipRRect(
borderRadius: new BorderRadius.circular(50),
child: Constants.userProfilePhoto == null
? Container(
color: Color(colorPrimary),
alignment: Alignment.center,
child: Text(
defaultProfilePhoto,
style: TextStyle(
color: Color(colorText), fontSize: 20),
),
)
: Image.network(
APIServices.httpDomain + Constants.userProfilePhoto,
fit: BoxFit.cover,
)),
),
Expanded(
child: Container(
margin: EdgeInsets.only(
left: 10,
),
child: TextField(
controller: commentController,
autofocus: true,
decoration: new InputDecoration(
suffixIcon: IconButton(
onPressed: () => widget.onPost(commentController.text),
icon: Icon(
FontAwesomeIcons.paperPlane,
size: 15,
color: Theme.of(context).primaryColor,
)),
contentPadding: EdgeInsets.all(10),
hintText: "Add a comment ...",
fillColor: Colors.white,
border: new OutlineInputBorder(
borderRadius: new BorderRadius.circular(20.0),
),
),
keyboardType: TextInputType.text,
style: new TextStyle(fontFamily: "Poppins", fontSize: 15),
),
))
],
));
}
}
答案 0 :(得分:0)
这是由Flutter SDK的未优化代码引起的:https://github.com/flutter/flutter/issues/37878。
该修补程序是最近合并的,位于“主”频道上。
考虑使用flutter channel master
切换到该频道。