如何修复颤振中的大小错误？
[英]How can I fix size errors in flutter?
问题描述
I have 4 fields and with the standard behavior, just when I went to this page, everything is fine.
我有 4 个字段和标准行为，就在我转到此页面时，一切都很好。 But when you click on the last field, it shows that there is not enough size, I want to make it scroll so that it would be visible what you enter.但是当您单击最后一个字段时，它显示没有足够的大小，我想让它滚动以便您输入的内容可见。 But I get an infinite size error, I don't know how to handle it.但是我收到一个无限大小的错误，我不知道如何处理。 Can anyone help?任何人都可以帮忙吗？ it is desirable to have an example and, if possible, documentation to understand why this is happening...最好有一个例子，如果可能的话，有文档来理解为什么会发生这种情况......
import 'package:flutter/material.dart';
import 'package:testdb/models/cart.dart';
import 'package:testdb/widgets/cart_list_item.dart';
import 'package:provider/provider.dart';
import 'package:http/http.dart' as http;
import 'package:flutter_masked_text/flutter_masked_text.dart';
class Order extends StatefulWidget {
@override
_OrderState createState() => _OrderState();
}
class _OrderState extends State<Order> {
// String _name = "Tom";
final _controllerName = TextEditingController();
final _controllerAdr = TextEditingController();
final _controllerCom = TextEditingController();
final _controllerPhone = new MaskedTextController(mask: '+000(00)000-00-00');
@override
void initState() {
super.initState();
}
@override
void dispose() {
_controllerName.dispose();
_controllerPhone.dispose();
super.dispose();
}
@override
Widget build(BuildContext context) {
final cartData = context.watch<CartDataProvider>();
return SingleChildScrollView(
child:Scaffold(
appBar: AppBar(
title: Text('t'),
),
body: Padding(
padding: EdgeInsets.only(top: 50, left: 20, right: 20),
child: Column(
children: <Widget>[
Padding(
padding: EdgeInsets.only(bottom: 50),
child: Text("t",
style: TextStyle(
fontSize: 26,
fontWeight: FontWeight.bold,
)),
),
TextFormField(
validator: (value) {
if (value == null || value.isEmpty) {
return 't';
}
return null;
},
decoration: InputDecoration(
hintText: "t",
labelText: "t",
icon: Icon(Icons.person)),
style: TextStyle(fontSize: 22),
controller: _controllerName),
TextFormField(
validator: (value) {
if (value == null || value.isEmpty || value.length < 12) {
return 't';
}
return null;
},
decoration: InputDecoration(
hintText: "333",
labelText: "t",
icon: Icon(Icons.phone),
),
style: TextStyle(fontSize: 22),
keyboardType: TextInputType.number,
controller: _controllerPhone),
TextFormField(
validator: (value) {
if (value == null || value.isEmpty) {
return 't';
}
return null;
},
decoration: InputDecoration(
hintText: "t",
labelText: "t",
icon: Icon(Icons.home)),
style: TextStyle(fontSize: 22),
controller: _controllerAdr),
TextFormField(
validator: (value) {
if (value == null || value.isEmpty) {
return 't';
}
return null;
},
maxLines: null,
keyboardType: TextInputType.multiline,
decoration: InputDecoration(
hintText: "t",
labelText: "test",
icon: Icon(Icons.message)),
style: TextStyle(fontSize: 22),
controller: _controllerCom),
Padding(
padding: EdgeInsets.only(top: 50),
child:ElevatedButton(
child: Text("test"),
onPressed: () {
var text = '''
Test order
${_controllerName.text}
${_controllerPhone.text}
${_controllerAdr.text}
${_controllerAdr.text}
${cartData.toString()}
''';
var response = http.get(Uri.parse(
''));
})
)
],
))));
}
}
1 个解决方案
解决方案1
0 2021-08-03 12:06:15
import 'package:flutter/material.dart';
import 'package:testdb/models/cart.dart';
import 'package:testdb/widgets/cart_list_item.dart';
import 'package:provider/provider.dart';
import 'package:http/http.dart' as http;
import 'package:flutter_masked_text/flutter_masked_text.dart';
class Order extends StatefulWidget {
@override
_OrderState createState() => _OrderState();
}
class _OrderState extends State<Order> {
// String _name = "Tom";
final _controllerName = TextEditingController();
final _controllerAdr = TextEditingController();
final _controllerCom = TextEditingController();
final _controllerPhone = new MaskedTextController(mask: '+000(00)000-00-00');
@override
void initState() {
super.initState();
}
@override
void dispose() {
_controllerName.dispose();
_controllerPhone.dispose();
super.dispose();
}
@override
Widget build(BuildContext context) {
final cartData = context.watch<CartDataProvider>();
return Scaffold(
appBar: AppBar(
title: Text('t'),
),
body: SingleChildScrollView(
child: Padding(
padding: EdgeInsets.only(top: 50, left: 20, right: 20),
child: Column(
children: <Widget>[
Padding(
padding: EdgeInsets.only(bottom: 50),
child: Text("t",
style: TextStyle(
fontSize: 26,
fontWeight: FontWeight.bold,
)),
),
TextFormField(
validator: (value) {
if (value == null || value.isEmpty) {
return 't';
}
return null;
},
decoration: InputDecoration(
hintText: "t",
labelText: "t",
icon: Icon(Icons.person)),
style: TextStyle(fontSize: 22),
controller: _controllerName),
TextFormField(
validator: (value) {
if (value == null || value.isEmpty || value.length < 12) {
return 't';
}
return null;
},
decoration: InputDecoration(
hintText: "333",
labelText: "t",
icon: Icon(Icons.phone),
),
style: TextStyle(fontSize: 22),
keyboardType: TextInputType.number,
controller: _controllerPhone),
TextFormField(
validator: (value) {
if (value == null || value.isEmpty) {
return 't';
}
return null;
},
decoration: InputDecoration(
hintText: "t",
labelText: "t",
icon: Icon(Icons.home)),
style: TextStyle(fontSize: 22),
controller: _controllerAdr),
TextFormField(
validator: (value) {
if (value == null || value.isEmpty) {
return 't';
}
return null;
},
maxLines: null,
keyboardType: TextInputType.multiline,
decoration: InputDecoration(
hintText: "t",
labelText: "test",
icon: Icon(Icons.message)),
style: TextStyle(fontSize: 22),
controller: _controllerCom),
Padding(
padding: EdgeInsets.only(top: 50),
child:ElevatedButton(
child: Text("test"),
onPressed: () {
var text = '''
Test order
${_controllerName.text}
${_controllerPhone.text}
${_controllerAdr.text}
${_controllerAdr.text}
${cartData.toString()}
''';
var response = http.get(Uri.parse(
''));
})
)
],
)),
));
}
}
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