我是 flutter 的初学者，我遇到了冲突，当我专注于 TexFiled 时，键盘隐藏在 TextField 上，底部按钮没有显示我在这里附加了我的冲突 对此的任何解决方案 谢谢
代码在这里
import 'dart:ui';
import 'package:crapp/pages/create_password/password_screen.dart';
import 'package:crapp/widgets/components/alert.dart';
import 'package:crapp/widgets/components/page_animation.dart';
import 'package:crapp/widgets/theme/constants.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import 'package:crapp/provider/theme_provider.dart';
class PasswordScreen extends StatefulWidget {
@override
_PasswordScreenState createState() => _PasswordScreenState();
}
class _PasswordScreenState extends State< PasswordScreen > {
final _controller = TextEditingController();
//validation controller
TextEditingController sQuastionController = new TextEditingController();
TextEditingController answerQController = new TextEditingController();
TextEditingController passController = new TextEditingController();
TextEditingController conPassController = new TextEditingController();
final TextEditingController _pass = TextEditingController();
final TextEditingController _confirmPass = TextEditingController();
bool _isButtonEnabled = false;
//final _controller = TextEditingController();
bool isConfirm=false;
check (BuildContext context){
if(sQuastionController.text.isNotEmpty &&
answerQController.text.isNotEmpty &&
conPassController.text.isNotEmpty &&
passController.text.isNotEmpty){
setState(() {
_isButtonEnabled = true;
});
} else {
setState(() {
_isButtonEnabled = false;
});
}
}
checks (BuildContext context){
if(passController.text.isEmpty){
showDialog<void>(
context: context,
builder: (BuildContext dialogContext) {
return Alert(title: "Alert !!!",subTile: "Password must be 10 characters !",);
}
);
}else if(passController.text.length > 0 && passController.text.length < 10){
isConfirm = true;
showDialog<void>(
context: context,
builder: (BuildContext dialogContext) {
return Alert(title: "Alert !!!",subTile: "Password doesn't match !",);
}
);
}
}
checkChanged(){
if( secretVal != null
)
{
setState(() {
isSave = true;
});
}else{
isSave =false;
}
} bool isSave=false;
final GlobalKey<FormState> formKey = GlobalKey<FormState>();
@override
Widget build(BuildContext context) {
/* double height = MediaQuery.of(context).size.height;
double width = MediaQuery.of(context).size.width;*/
Provider.of<ThemeProvider>(context).themeMode == ThemeMode.dark
? 'DarkTheme'
: 'LightTheme';
return Scaffold(
resizeToAvoidBottomInset: false,
body: SafeArea(
child: Column(
children: <Widget>[
Expanded(
child: _signUp(),
),
],
),
), bottomNavigationBar: BottomAppBar(
elevation: 4,
child: Container(
height: 70,
child: Container(
padding: EdgeInsets.symmetric(horizontal: 16),
child: Row(
children: [
Expanded(
child: MaterialButton(
height: 44,
onPressed: () {
FocusScope.of(context).requestFocus(FocusNode());
//check();
},
shape: RoundedRectangleBorder(
borderRadius:
BorderRadius.circular(4)),
color: Color(0xFF2A3476),
elevation: 0,
highlightElevation: 0,
child: Container(
child: Text(
"Save",
style: TextStyle(
color: Color(0xFF2A3476),
fontSize: 15,
fontFamily: 'medium'),
),
),
),
),
],
),
),
),
),
/* bottomNavigationBar: Container(
padding: EdgeInsets.all(25.0),
decoration: BoxDecoration(color: Colors.white,
),
child: Row(
children: [
Expanded(
child: MaterialButton(
height: 44,
onPressed: () {
FocusScope.of(context).requestFocus(FocusNode());
*//* Navigator.push(context, SlidePageRoute(page:PasswordScreen()));*//*
},
shape: RoundedRectangleBorder(borderRadius: BorderRadius.all(Radius.circular(8.0))),
color: _isButtonEnabled ? Color(0xFF2A3476) : Color(0x201E1E99),
elevation: 0,
highlightElevation: 0,
child: Container(
child: Text(
"Next",
style: TextStyle(color: m_fillColor,fontSize: 18,fontWeight: FontWeight.w600 ,
fontFamily: "regular",),
),
),
),
),
],
),
)*/
);
}
Widget _signUp() {
return Container(
constraints: BoxConstraints.expand(
height: MediaQuery.of(context).size.height,
width: MediaQuery.of(context).size.width,
),
decoration: BoxDecoration(
gradient: LinearGradient(
colors: [
Color(0xFF2A3476),
Color(0xFF2A3476),
],
begin: Alignment.topLeft,
end: Alignment.centerRight,
),
),
child: Form(
key: formKey,
child: Container(
child: SingleChildScrollView(
child: Column(
mainAxisAlignment: MainAxisAlignment.start,
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Padding(
padding:
const EdgeInsets.symmetric(vertical: 36.0, horizontal: 24.0),
child: Column(
mainAxisAlignment: MainAxisAlignment.end,
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
"Create Password",
style: TextStyle(
color: Colors.white,
fontSize: 30.0,fontFamily: "medium",
fontWeight: FontWeight.w800,
),
),
],
),
),
Container(
width: double.infinity,
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.only(
topLeft: Radius.circular(30),
topRight: Radius.circular(30),
),
),
child: Padding(
padding: const EdgeInsets.all(24.0),
child: Column(
mainAxisAlignment: MainAxisAlignment.start,
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
"Steps to set your",
style: TextStyle(
fontSize: 22,
fontFamily: "regular",
fontWeight: FontWeight.w300,
color: Colors.black,
),
),
Text(
"password",
style: TextStyle(
fontSize: 22,
fontFamily: "regular",
fontWeight: FontWeight.w300,
color: Colors.black,
),
),
SizedBox(
height: 20.0,
), Text(
'Secret Question',
style:
TextStyle( fontSize: 15,
fontFamily: "regular",),
), SizedBox(
height: 8.0,
),
Row(
children: [
Expanded(child: InkWell(
onTap: (){
FocusScope.of(context).requestFocus(FocusNode());
secretDialogue();
},
child: Stack(
children: <Widget>[
TextField(
/* textInputAction: TextInputAction.next,*/
controller: sQuastionController,
enabled: false,
onChanged: (val) {
check(context);
},
decoration: InputDecoration(
labelText: secretVal==null?"Select One":secretVal,
contentPadding: EdgeInsets.all(8),
border: OutlineInputBorder(
borderRadius:
BorderRadius.circular(8.0),
borderSide: BorderSide.none,
),
filled: true,
fillColor: Color(0xFFE1E8F7),
hintText: "",
/* prefixIcon: Icon(
Icons.people_outline_rounded,
color: Colors.grey[600],
)*/
),
),
Positioned.directional(
textDirection: Directionality.of(context),
end: 0,
top: 0,
bottom: 0,
child: Padding(
padding: const EdgeInsets.all(8.0),
child:Image.asset(
"assets/icons/ic_drop_arrow.png",
scale: 9,
)),
)
],
),
),
),
],
),
SizedBox(
height: 20.0,
),
Text(
'Answer',
style:
TextStyle( fontSize: 15,
fontFamily: "regular",),
),
SizedBox(
height: 8.0,
),
TextField(
/* keyboardType: TextInputType.emailAddress,*/
/* textInputAction: TextInputAction.next,*/
controller: answerQController,
onChanged: (val){
check(context);
},
decoration: InputDecoration(
contentPadding: EdgeInsets.all(8),
border: OutlineInputBorder(
borderRadius: BorderRadius.circular(8.0),
borderSide: BorderSide.none,
),
filled: true,
fillColor: Color(0xFFE1E8F7),
hintText: "",
/*prefixIcon: Icon(
Icons.people_outline_rounded,
color: Color(0xFFE1E8F7),
)*/),
),
SizedBox(
height: 20.0,
),
Text(
'Password',
style:
TextStyle( fontSize: 15,
fontFamily: "regular",),
),
SizedBox(
height: 8.0,
),
TextFormField(
/* keyboardType: TextInputType.emailAddress,*/
/* textInputAction: TextInputAction.next,*/
controller: passController,
onChanged: (val){
check(context);
},
//password validation
/* validator: (val){
if(val!.isEmpty)
return 'Empty';
return null;
},*/
decoration: InputDecoration(
contentPadding: EdgeInsets.all(8),
border: OutlineInputBorder(
borderRadius: BorderRadius.circular(8.0),
borderSide: BorderSide.none,
),
filled: true,
fillColor: Color(0xFFE1E8F7),
hintText: "************",
),
),
SizedBox(
height: 20.0,
),
Text(
'Confirm Password',
style:
TextStyle( fontSize: 15,
fontFamily: "regular",),
),
SizedBox(
height: 8.0,
),
TextFormField(
textInputAction: TextInputAction.done,
controller: conPassController,
onChanged: (val){
check(context);
},
//password validation
/* validator: (val){
if(val!.isEmpty)
return 'Empty';
if(val != _pass.text)
return 'Not Match';
return null;
},*/
decoration: InputDecoration(
contentPadding: EdgeInsets.all(8),
border: OutlineInputBorder(
borderRadius: BorderRadius.circular(8.0),
borderSide: BorderSide.none,
),
filled: true,
fillColor: Color(0xFFE1E8F7),
hintText: "************",
),
),
SizedBox(
height: 20.0,
),
SizedBox(
height: 8.0,
),
SizedBox(
height:200.0,
),
],
),
),
),
],
),
),
),
),
);
}
//
//Secret Qu Alert
List secretList =[
"-What’s your favorite team?",
"-What’s your astrological sign?",
"-What’s your favorite movie?",
"-What city were you born in?",
"-What was your first car?",
];
var secretVal;
void secretDialogue(){
showDialog<void>(
context: context,
// false = user must tap button, true = tap outside dialog
builder: (BuildContext dialogContext) {
return StatefulBuilder(
builder: (context,setState){
return Dialog(
shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
insetPadding: EdgeInsets.all(20),
child: Container(
padding: EdgeInsets.symmetric(vertical: 10),
child: Column(
mainAxisSize: MainAxisSize.min,
children: List.generate(secretList.length, (index){
return InkWell(
onTap: (){
setState(() {
secretVal = secretList[index];
Navigator.pop(context);
});
},
child: Container(
height: 50,
padding: EdgeInsets.symmetric(horizontal: 20),
alignment: Alignment.centerLeft,
child: Text(secretList[index],
style: TextStyle(
fontSize: 18,
fontFamily: "medium",
),),
),
);
})
),
),
);
}
);
},
);
}
}
答案 0 :(得分：1)
用 SingleChildScrollView 包裹你的 Column。它会解决你的问题。 像这样..
body: SafeArea(
child: SingleChildScrollView(
child: Column(
我也认为在这之后就没有必要了
resizeToAvoidBottomInset: false,
在脚手架中。
答案 1 :(得分：1)
请查看，我发现了一些代码不一致，重构了其中的一些
import 'dart:ui';
import 'package:crapp/pages/create_password/password_screen.dart';
import 'package:crapp/widgets/components/alert.dart';
import 'package:crapp/widgets/components/page_animation.dart';
import 'package:crapp/widgets/theme/constants.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import 'package:crapp/provider/theme_provider.dart';
class PasswordScreen extends StatefulWidget {
@override
_PasswordScreenState createState() => _PasswordScreenState();
}
class _PasswordScreenState extends State< PasswordScreen > {
final _controller = TextEditingController();
//validation controller
TextEditingController sQuastionController = new TextEditingController();
TextEditingController answerQController = new TextEditingController();
TextEditingController passController = new TextEditingController();
TextEditingController conPassController = new TextEditingController();
final TextEditingController _pass = TextEditingController();
final TextEditingController _confirmPass = TextEditingController();
bool _isButtonEnabled = false;
//final _controller = TextEditingController();
bool isConfirm = false;
check(BuildContext context) {
if (sQuastionController.text.isNotEmpty &&
answerQController.text.isNotEmpty &&
conPassController.text.isNotEmpty &&
passController.text.isNotEmpty) {
setState(() {
_isButtonEnabled = true;
});
} else {
setState(() {
_isButtonEnabled = false;
});
}
}
void initState() {
SystemChannels.textInput.invokeMethod('TextInput.hide');
super.initState();
}
checks (BuildContext context){
if(passController.text.isEmpty){
showDialog<void>(
context: context,
builder: (BuildContext dialogContext) {
return Alert(title: "Alert !!!",subTile: "Password must be 10 characters !",);
}
);
}else if(passController.text.length > 0 && passController.text.length < 10){
isConfirm = true;
showDialog<void>(
context: context,
builder: (BuildContext dialogContext) {
return Alert(title: "Alert !!!",subTile: "Password doesn't match !",);
}
);
}
}
checkChanged() {
if (secretVal != null) {
setState(() {
isSave = true;
});
} else {
isSave = false;
}
}
bool isSave = false;
final GlobalKey<FormState> formKey = GlobalKey<FormState>();
@override
Widget build(BuildContext context) {
/* double height = MediaQuery.of(context).size.height;
double width = MediaQuery.of(context).size.width;*/
Provider.of<ThemeProvider>(context).themeMode == ThemeMode.dark
? 'DarkTheme'
: 'LightTheme';
return Scaffold(
// resizeToAvoidBottomInset: false,
body: _signUp(),
bottomNavigationBar: BottomAppBar(
elevation: 4,
child: Container(
height: 70,
child: Container(
padding: EdgeInsets.symmetric(horizontal: 16),
child: Row(
children: [
Expanded(
child: MaterialButton(
height: 44,
onPressed: () {
FocusScope.of(context).requestFocus(FocusNode());
//check();
},
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(4)),
color: Color(0xFF2A3476),
elevation: 0,
highlightElevation: 0,
child: Container(
child: Text(
"Save",
style: TextStyle(
color: Color(0xFF2A3476),
fontSize: 15,
fontFamily: 'medium'),
),
),
),
),
],
),
),
),
),
/* bottomNavigationBar: Container(
padding: EdgeInsets.all(25.0),
decoration: BoxDecoration(color: Colors.white,
),
child: Row(
children: [
Expanded(
child: MaterialButton(
height: 44,
onPressed: () {
FocusScope.of(context).requestFocus(FocusNode());
*/ /* Navigator.push(context, SlidePageRoute(page:PasswordScreen()));*/ /*
},
shape: RoundedRectangleBorder(borderRadius: BorderRadius.all(Radius.circular(8.0))),
color: _isButtonEnabled ? Color(0xFF2A3476) : Color(0x201E1E99),
elevation: 0,
highlightElevation: 0,
child: Container(
child: Text(
"Next",
style: TextStyle(color: m_fillColor,fontSize: 18,fontWeight: FontWeight.w600 ,
fontFamily: "regular",),
),
),
),
),
],
),
)*/
);
}
Widget _signUp() {
return Container(
width: MediaQuery.of(context).size.width,
decoration: BoxDecoration(
gradient: LinearGradient(
colors: [
Color(0xFF2A3476),
Color(0xFF2A3476),
],
begin: Alignment.topLeft,
end: Alignment.centerRight,
),
),
child: SingleChildScrollView(
child: Form(
key: formKey,
child: Column(
mainAxisAlignment: MainAxisAlignment.start,
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Padding(
padding: const EdgeInsets.symmetric(
vertical: 36.0, horizontal: 24.0),
child: Column(
mainAxisAlignment: MainAxisAlignment.end,
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
"Create Password",
style: TextStyle(
color: Colors.white,
fontSize: 30.0,
fontFamily: "medium",
fontWeight: FontWeight.w800,
),
),
],
),
),
Container(
width: double.infinity,
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.only(
topLeft: Radius.circular(30),
topRight: Radius.circular(30),
),
),
child: Padding(
padding: const EdgeInsets.all(24.0),
child: Column(
mainAxisAlignment: MainAxisAlignment.start,
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
"Steps to set your",
style: TextStyle(
fontSize: 22,
fontFamily: "regular",
fontWeight: FontWeight.w300,
color: Colors.black,
),
),
Text(
"password",
style: TextStyle(
fontSize: 22,
fontFamily: "regular",
fontWeight: FontWeight.w300,
color: Colors.black,
),
),
SizedBox(
height: 20.0,
),
Text(
'Secret Question',
style: TextStyle(
fontSize: 15,
fontFamily: "regular",
),
),
SizedBox(
height: 8.0,
),
Row(
children: [
Expanded(
child: InkWell(
onTap: () {
FocusScope.of(context)
.requestFocus(FocusNode());
secretDialogue();
},
child: Stack(
children: <Widget>[
TextField(
/* textInputAction: TextInputAction.next,*/
controller: sQuastionController,
enabled: false,
onChanged: (val) {
check(context);
},
decoration: InputDecoration(
labelText: secretVal == null
? "Select One"
: secretVal,
contentPadding: EdgeInsets.all(8),
border: OutlineInputBorder(
borderRadius:
BorderRadius.circular(8.0),
borderSide: BorderSide.none,
),
filled: true,
fillColor: Color(0xFFE1E8F7),
hintText: "",
/* prefixIcon: Icon(
Icons.people_outline_rounded,
color: Colors.grey[600],
)*/
),
),
Positioned.directional(
textDirection: Directionality.of(context),
end: 0,
top: 0,
bottom: 0,
child: Padding(
padding: const EdgeInsets.all(8.0),
child: Image.asset(
"assets/icons/ic_drop_arrow.png",
scale: 9,
)),
)
],
),
),
),
],
),
SizedBox(
height: 20.0,
),
Text(
'Answer',
style: TextStyle(
fontSize: 15,
fontFamily: "regular",
),
),
SizedBox(
height: 8.0,
),
GestureDetector(
onTap: () {
FocusScope.of(context).requestFocus(new FocusNode());
},
child: TextField(
/* keyboardType: TextInputType.emailAddress,*/
/* textInputAction: TextInputAction.next,*/
controller: answerQController,
onChanged: (val) {
check(context);
},
decoration: InputDecoration(
contentPadding: EdgeInsets.all(8),
border: OutlineInputBorder(
borderRadius: BorderRadius.circular(8.0),
borderSide: BorderSide.none,
),
filled: true,
fillColor: Color(0xFFE1E8F7),
hintText: "",
/*prefixIcon: Icon(
Icons.people_outline_rounded,
color: Color(0xFFE1E8F7),
)*/
),
),
),
SizedBox(
height: 20.0,
),
Text(
'Password',
style: TextStyle(
fontSize: 15,
fontFamily: "regular",
),
),
SizedBox(
height: 8.0,
),
GestureDetector(
onTap: () {
FocusScope.of(context).requestFocus(new FocusNode());
},
child: TextFormField(
/* keyboardType: TextInputType.emailAddress,*/
/* textInputAction: TextInputAction.next,*/
controller: passController,
onChanged: (val) {
check(context);
},
//password validation
/* validator: (val){
if(val!.isEmpty)
return 'Empty';
return null;
},*/
decoration: InputDecoration(
contentPadding: EdgeInsets.all(8),
border: OutlineInputBorder(
borderRadius: BorderRadius.circular(8.0),
borderSide: BorderSide.none,
),
filled: true,
fillColor: Color(0xFFE1E8F7),
hintText: "************",
),
),
),
SizedBox(
height: 20.0,
),
Text(
'Confirm Password',
style: TextStyle(
fontSize: 15,
fontFamily: "regular",
),
),
SizedBox(
height: 8.0,
),
GestureDetector(
onTap: () {
FocusScope.of(context).requestFocus(new FocusNode());
},
child: TextFormField(
textInputAction: TextInputAction.done,
controller: conPassController,
onChanged: (val) {
check(context);
},
//password validation
/* validator: (val){
if(val!.isEmpty)
return 'Empty';
if(val != _pass.text)
return 'Not Match';
return null;
},*/
decoration: InputDecoration(
contentPadding: EdgeInsets.all(8),
border: OutlineInputBorder(
borderRadius: BorderRadius.circular(8.0),
borderSide: BorderSide.none,
),
filled: true,
fillColor: Color(0xFFE1E8F7),
hintText: "************",
),
),
),
SizedBox(
height: 20.0,
),
SizedBox(
height: 8.0,
),
SizedBox(
height: 200.0,
),
],
),
),
),
],
),
),
),
);
}
//
//Secret Qu Alert
List secretList = [
"-What’s your favorite team?",
"-What’s your astrological sign?",
"-What’s your favorite movie?",
"-What city were you born in?",
"-What was your first car?",
];
var secretVal;
void secretDialogue() {
showDialog<void>(
context: context,
// false = user must tap button, true = tap outside dialog
builder: (BuildContext dialogContext) {
return StatefulBuilder(builder: (context, setState) {
return Dialog(
shape:
RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
insetPadding: EdgeInsets.all(20),
child: Container(
padding: EdgeInsets.symmetric(vertical: 10),
child: Column(
mainAxisSize: MainAxisSize.min,
children: List.generate(secretList.length, (index) {
return InkWell(
onTap: () {
setState(() {
secretVal = secretList[index];
Navigator.pop(context);
});
},
child: Container(
height: 50,
padding: EdgeInsets.symmetric(horizontal: 20),
alignment: Alignment.centerLeft,
child: Text(
secretList[index],
style: TextStyle(
fontSize: 18,
fontFamily: "medium",
),
),
),
);
})),
),
);
});
},
);
}
}