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I have a piece of code here which makes up the body of the login and register screens. Everything is in the position i want but i would like to space them out a little. The two input fields, title, subtitle, button and textbutton are too close together vertically.
I tried to use mainaxisalignment.spacebetween but i get a constraint error and everything i have on the screen disappears afterwards except the background.
The body used by the register and login screen:
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: Colors.transparent,
body: Container(
decoration: BoxDecoration(
gradient: LinearGradient(
begin: Alignment.topLeft,
end: Alignment.bottomLeft,
colors: [Color(0xFF1F1F1F), Color(0xFF1F1F1F)],
),
image: DecorationImage(
image: AssetImage("lib/assets/images/register.png"),
alignment: Alignment.topCenter,
),
),
child: Stack(
children: [
Container(
decoration: BoxDecoration(
image: DecorationImage(
image: AssetImage('lib/assets/images/bottomleft.png'),
alignment: Alignment.bottomLeft,
),
),
),
Container(
decoration: BoxDecoration(
image: DecorationImage(
image: AssetImage('lib/assets/images/toptop.png'),
alignment: Alignment.topRight,
),
),
),
Container(
decoration: BoxDecoration(
image: DecorationImage(
image: AssetImage('lib/assets/images/topbig.png'),
alignment: Alignment.topCenter,
repeat: ImageRepeat.repeat),
),
),
Container(
decoration: BoxDecoration(
image: DecorationImage(
image: AssetImage('lib/assets/images/top.png'),
alignment: Alignment.topCenter,
repeat: ImageRepeat.repeatX),
),
),
Padding(
padding:
const EdgeInsets.symmetric(horizontal: 25, vertical: 250),
child: ListView(
children: [
if (onBackPressed == null) verticalSpaceLarge,
if (onBackPressed != null) verticalSpaceRegular,
if (onBackPressed != null)
IconButton(
padding: EdgeInsets.zero,
onPressed: onBackPressed,
alignment: Alignment.centerLeft,
icon: Icon(
Icons.arrow_back_ios,
color: Colors.black,
),
),
Center(
child: Text(
title!,
style: TextStyle(
color: Colors.white,
fontSize: 30.0,
fontWeight: FontWeight.bold,
fontFamily: 'Montserrat',
),
),
),
Align(
alignment: Alignment.center,
child: SizedBox(
child: Center(
child: Text(
subtitle!,
style: ktsMediumGreyBodyText,
),
),
),
),
form!,
if (onForgotPassword != null)
Align(
alignment: Alignment.centerRight,
child: GestureDetector(
onTap: onForgotPassword,
child: Center(
child: Text(
'Forgot Password?',
style: ktsMediumGreyBodyText.copyWith(),
),
),
),
),
if (validationMessage != null)
Center(
child: Text(
validationMessage!,
style: TextStyle(
color: Colors.red, fontSize: kBodyTextSize),
),
),
if (validationMessage != null) verticalSpaceRegular,
GestureDetector(
onTap: onMainButtonTapped,
child: Container(
width: double.infinity,
height: 50,
alignment: Alignment.center,
decoration: BoxDecoration(
color: kcPrimaryColor,
borderRadius: BorderRadius.circular(8),
),
child: busy!
? CircularProgressIndicator(
valueColor: AlwaysStoppedAnimation(Colors.white),
)
: Text(
mainButtonTitle!,
style: TextStyle(
color: Colors.white,
fontWeight: FontWeight.bold,
fontSize: 14),
),
),
),
if (onCreateAccountTapped != null)
GestureDetector(
onTap: onCreateAccountTapped,
child: Center(
child: Column(
children: [
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Text(
"Don\'t have an account?",
style: TextStyle(color: Colors.white),
),
Text(
"SIGN UP",
style: TextStyle(color: kcPrimaryColor),
),
],
),
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Text(
"OR SIGN IN WITH",
style: TextStyle(color: kcMediumGreyColor),
),
],
),
],
),
),
),
if (showTermsText!)
Center(
child: Text(
"By signing up you agree to our terms, conditions and privacy policy",
style: ktsMediumGreyBodyText,
textAlign: TextAlign.center,
),
),
],
),
),
],
),
),
);
}
}
the login screen:
Widget build(BuildContext context) {
return ViewModelBuilder<LoginScreenModel>.reactive(
builder: (context, model, child) => Scaffold(
body: AuthenticationLayout(
busy: model.isBusy,
onCreateAccountTapped: () {},
//validationMessage: model.validationMessage,
title: 'SIGN IN',
subtitle: 'please fill the form below',
mainButtonTitle: 'SIGN IN',
form: Column(
children: [
TextField(
decoration: InputDecoration(
hintText: 'Username',
hintStyle: TextStyle(color: Colors.white),
prefixIcon: const Icon(
Icons.person,
color: Colors.white,
),
),
),
TextField(
decoration: InputDecoration(
hintText: 'Password',
hintStyle: TextStyle(color: Colors.white),
prefixIcon: const Icon(
Icons.lock,
color: Colors.white,
),
),
),
],
),
onForgotPassword: () {},
),
),
viewModelBuilder: () => LoginScreenModel(),
);
}
}
Column(
children: <Widget>[
FirstWidget(),
SizedBox(height: 100),
SecondWidget(),
],
),
You should Add SizedBox() in between two Widgets, or Set Padding to your widgets or you use Container also like below:
Using SizedBox()
Column(
children:[
Widget 1(),
SizedBox(height:10),
Widget 2(),
SizedBox(height:10),
Widget 3(),
],
),
Using Padding()
Column(
children:[
Padding(
padding:EdgeInsets.all(8.0)
child: Widget 1(),
),
Padding(
padding:EdgeInsets.all(8.0)
child: Widget 2(),
),
Padding(
padding:EdgeInsets.all(8.0)
child: Widget 3(),
),
],
),
Using Container()
Column(
children:[
Container(
padding:EdgeInsets.all(8.0)
child: Widget 1(),
),
Container(
padding:EdgeInsets.all(8.0)
child: Widget 2(),
),
Container(
padding:EdgeInsets.all(8.0)
child: Widget 3(),
),
],
),
You should use padding on your choice like:
EdgeInsets.all(8.0),
EdgeInsets.only(left:8.0,top:8.0,right:8.0,bottom:8.0),
EdgeInsets.symmetric(vertical: 8.0,horizontal:8.0),
You may add some SizedBox() between or set margin to the components.
Use SizedBox widget to add vertical spacing to your widget.
For e.g
SizedBox(height: 16),
I have three tab. One of the tab is for edit photo page (retrieve image which already have in API, edit and return capture image to API with Update button in that page). All is work and fine. But after capture image with camera, and change to other tab and return back to this tab (in this state not save), Already capture image not show and only API image show. I capture again to save. I want to remain the capture image in container although I don't save to API and change tab.
This is picture of my app contain tab bar view which contain edit image tab bar
This is my tab bar view dart file.
var width = MediaQuery.of(context).size.width;
final tabText = TextStyle(fontSize: width * 0.03);
return Scaffold(
appBar: new AppBar(
title: new Text(
'EDIT CLIENT',
style: new TextStyle(color: accentColor, fontFamily: 'Dosis'),
),
bottom: PreferredSize(
preferredSize: Size(40, 40),
child: Container(
height: getScreenHeightRation(40.0),
decoration: BoxDecoration(
color: Color(0xFFF0C185),
border: Border.all(color: Colors.grey[600]),
//0xFFF0C185
),
child: TabBar(
indicatorPadding: EdgeInsets.symmetric(horizontal: 40),
//isScrollable: true,
//change here
labelPadding: EdgeInsets.only(left: 10),
indicatorSize: TabBarIndicatorSize.tab,
indicatorColor: Colors.transparent,
indicator: BoxDecoration(
color: Color(0xFFD2A368),
),
tabs: [
Container(
decoration: BoxDecoration(
border: Border(right: BorderSide(color: Colors.grey))),
child: Tab(
child: Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
ImageIcon(
AssetImage('assets/images/icon_ext/menu.png'),
size: 12,
),
SizedBox(
width: 5.0,
),
Text('Customer Data',style: tabText, ),
],
),
),
),
Container(
decoration: BoxDecoration(
border: Border(right: BorderSide(color: Colors.grey))),
child: Tab(
child: Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
ImageIcon(
AssetImage('assets/images/icon_ext/image.png'),
size: 12,
),
SizedBox(
width: 5.0,
),
Text('Profile',style: tabText, )
],
),
),
),
Container(
child: Tab(
child: Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
ImageIcon(
AssetImage('assets/images/icon_ext/placeholder.png'),
size: 12,
),
SizedBox(
width: 5.0,
),
Text('Location',style: tabText, )
],
),
),
)
],
controller: tabController,
),
),
),
iconTheme: new IconThemeData(color: accentColor),
centerTitle: true,
),
body: TabBarView(
controller: tabController,
children: [
EditClientInformation(
customerNo: widget.customerNo,
branchId: _branchId,
defaultBranchId: _defaultBranchId,
userId: _userId,
systemFormatDate: _systemFormatDate,
),
EditClientProfile(
customerNo: widget.customerNo,
branchId: _branchId,
defaultBranchId: _defaultBranchId,
userId: _userId,
systemFormatDate: _systemFormatDate,
),
EditClientMap(
customerNo: widget.customerNo,
branchId: _branchId,
defaultBranchId: _defaultBranchId,
userId: _userId,
systemFormatDate: _systemFormatDate,
),
],
),
);
}
This is capture image tab.
Row(
mainAxisAlignment: MainAxisAlignment.spaceAround,
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Stack(
children: [
Container(
width: 300.0,
height: 170.0,
decoration: BoxDecoration(
borderRadius: BorderRadius.all(Radius.circular(20)),
border:
Border.all(width: 1, style: BorderStyle.solid),
),
child: Center(
child: Container(
width: 170.0,
height: double.infinity,
decoration: BoxDecoration(
borderRadius: BorderRadius.only(
topRight: Radius.circular(20),
topLeft: Radius.circular(10),
bottomLeft: Radius.circular(10),
bottomRight: Radius.circular(10)),
//border: Border.all(width: 1, style: BorderStyle.solid),
image: DecorationImage(
image: _profileCaptImg == ""
? NetworkImage(_profileImg)
: FileImage(profile),
fit: BoxFit.cover,
),
),
),
),
),
Positioned(
right: 62.0,
top: 0.0,
child: _profileCaptImg != ''
? GestureDetector(
onTap: () {
setState(() {
profile = null;
_profileCaptImg = '';
});
},
child: Container(
width: 20.0,
height: 20.0,
child: Icon(
Icons.close,
color: Colors.white,
size: 20.0,
),
decoration: BoxDecoration(
shape: BoxShape.circle,
color: Colors.black,
),
),
)
: Container(),
),
],
),
Container(
width: 50.0,
height: 50.0,
child: FloatingActionButton(
onPressed: profileImgPicker,
heroTag: null,
child: new Icon(Icons.camera_alt),
)),
],
),
Try this solution:
/// Add with AutomaticKeepAliveClientMixin:
class _YourWidgetState extends State<YourWidget> with AutomaticKeepAliveClientMixin {
/// Add these 2 lines:
#override
bool get wantKeepAlive => true;
/// Add super.build(context) to your build method
#override
Widget build(BuildContext context) {
super.build(context);
return YourWidgets();
}
}
I am new to flutter. In my home screen I want to add a text at the bottom of the Screen displayed
home page code
Scaffold buildUnAuthScreen(){
return Scaffold(
body: Container(
decoration: BoxDecoration(
gradient: LinearGradient(
begin: Alignment.topRight,
end: Alignment.bottomLeft,
colors: [
Theme.of(context).accentColor,
Theme.of(context).primaryColor,
]
),
),
alignment: Alignment.center,
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
crossAxisAlignment: CrossAxisAlignment.center,
children: <Widget>[
Text('FriendsHive',
style: TextStyle(
fontFamily: 'Signatra',
fontSize: 90.0,
color: Colors.white,
) ,
),
GestureDetector(
onTap: login,
child: Container(
width: 260.0,
height: 60.0,
decoration: BoxDecoration(
image: DecorationImage(image: AssetImage('assets/images/google_signin_button.png'),
fit: BoxFit.cover,
),
),
),
),
],
),
),
);
}
result
In this screen I want to add a text that will be displayed at the bottom. I tried an example but when I apply that, text is shown at bottom but the main text and the button goes up, I don't want that to happen.
you can use this code
Expanded(
child: Align(
alignment: FractionalOffset.bottomCenter,
child: Text('You can try'),
),
),
or
bottomNavigationBar: BottomAppBar(
color: Colors.transparent,
child: Text('something'),
elevation: 0,
),
you can wrap your column with stack and in stack use positioned widget like code below
Scaffold(
body: Container(
decoration: BoxDecoration(
gradient: LinearGradient(
begin: Alignment.topRight,
end: Alignment.bottomLeft,
colors: [
Theme.of(context).accentColor,
Theme.of(context).primaryColor,
]),
),
alignment: Alignment.center,
child: Stack(
children: <Widget>[
Column(
mainAxisAlignment: MainAxisAlignment.center,
crossAxisAlignment: CrossAxisAlignment.center,
children: <Widget>[
Text(
'FriendsHive',
style: TextStyle(
fontFamily: 'Signatra',
fontSize: 90.0,
color: Colors.white,
),
),
GestureDetector(
onTap: () {},
child: Container(
width: 260.0,
height: 60.0,
decoration: BoxDecoration(
image: DecorationImage(
image: AssetImage(
'assets/images/google_signin_button.png'),
fit: BoxFit.cover,
),
),
),
),
],
),
Positioned(
bottom: 0,
right: 0,
left: 0,
child: Center(child: Text('test')),
)
],
)),
);
Hi I am trying to create login screen. It is working fine for me. When I open the keyboard then it is giving me an error Bottom overloaded by 213 pixels.
Widget LoginPage() {
return new Scaffold(body: Container(
height: MediaQuery.of(context).size.height,
decoration: BoxDecoration(
color: Colors.white,
image: DecorationImage(
colorFilter: new ColorFilter.mode(
Colors.black.withOpacity(0.05), BlendMode.dstATop),
image: AssetImage('assets/images/mountains.jpg'),
fit: BoxFit.cover,
),
),
child: new Column(
children: <Widget>[
Container(
padding: EdgeInsets.all(120.0),
child: Center(
child: Icon(
Icons.headset_mic,
color: Colors.redAccent,
size: 50.0,
),
),
),
new Row(
children: <Widget>[
new Expanded(
child: new Padding(
padding: const EdgeInsets.only(left: 40.0),
child: new Text(
"EMAIL",
style: TextStyle(
fontWeight: FontWeight.bold,
color: Colors.redAccent,
fontSize: 15.0,
),
),
),
),
],
),
new Container(
width: MediaQuery.of(context).size.width,
margin: const EdgeInsets.only(left: 40.0, right: 40.0, top: 10.0),
alignment: Alignment.center,
decoration: BoxDecoration(
border: Border(
bottom: BorderSide(
color: Colors.redAccent,
width: 0.5,
style: BorderStyle.solid),
),
),
padding: const EdgeInsets.only(left: 0.0, right: 10.0),
child: new Row(
crossAxisAlignment: CrossAxisAlignment.center,
mainAxisAlignment: MainAxisAlignment.start,
children: <Widget>[
new Expanded(
child: TextField(
obscureText: true,
textAlign: TextAlign.left,
decoration: InputDecoration(
border: InputBorder.none,
hintText: 'samarthagarwal#live.com',
hintStyle: TextStyle(color: Colors.grey),
),
),
),
],
),
),
Divider(
height: 24.0,
),
new Row(
children: <Widget>[
new Expanded(
child: new Padding(
padding: const EdgeInsets.only(left: 40.0),
child: new Text(
"PASSWORD",
style: TextStyle(
fontWeight: FontWeight.bold,
color: Colors.redAccent,
fontSize: 15.0,
),
),
),
),
],
),
new Container(
width: MediaQuery.of(context).size.width,
margin: const EdgeInsets.only(left: 40.0, right: 40.0, top: 10.0),
alignment: Alignment.center,
decoration: BoxDecoration(
border: Border(
bottom: BorderSide(
color: Colors.redAccent,
width: 0.5,
style: BorderStyle.solid),
),
),
padding: const EdgeInsets.only(left: 0.0, right: 10.0),
child: new Row(
crossAxisAlignment: CrossAxisAlignment.center,
mainAxisAlignment: MainAxisAlignment.start,
children: <Widget>[
new Expanded(
child: TextField(
obscureText: true,
textAlign: TextAlign.left,
decoration: InputDecoration(
border: InputBorder.none,
hintText: '*********',
hintStyle: TextStyle(color: Colors.grey),
),
),
),
],
),
),
Divider(
height: 24.0,
),
new Row(
mainAxisAlignment: MainAxisAlignment.end,
children: <Widget>[
Padding(
padding: const EdgeInsets.only(right: 20.0),
child: new FlatButton(
child: new Text(
"Forgot Password?",
style: TextStyle(
fontWeight: FontWeight.bold,
color: Colors.redAccent,
fontSize: 15.0,
),
textAlign: TextAlign.end,
),
onPressed: () => {},
),
),
],
),
new Container(
width: MediaQuery.of(context).size.width,
margin: const EdgeInsets.only(left: 30.0, right: 30.0, top: 20.0),
alignment: Alignment.center,
child: new Row(
children: <Widget>[
new Expanded(
child: new FlatButton(
shape: new RoundedRectangleBorder(
borderRadius: new BorderRadius.circular(30.0),
),
color: Colors.redAccent,
onPressed: () => {},
child: new Container(
padding: const EdgeInsets.symmetric(
vertical: 20.0,
horizontal: 20.0,
),
child: new Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
new Expanded(
child: Text(
"LOGIN",
textAlign: TextAlign.center,
style: TextStyle(
color: Colors.white,
fontWeight: FontWeight.bold),
),
),
],
),
),
),
),
],
),
),
new Container(
width: MediaQuery.of(context).size.width,
margin: const EdgeInsets.only(left: 30.0, right: 30.0, top: 20.0),
alignment: Alignment.center,
child: Row(
children: <Widget>[
new Expanded(
child: new Container(
margin: EdgeInsets.all(8.0),
decoration: BoxDecoration(border: Border.all(width: 0.25)),
),
),
Text(
"OR CONNECT WITH",
style: TextStyle(
color: Colors.grey,
fontWeight: FontWeight.bold,
),
),
new Expanded(
child: new Container(
margin: EdgeInsets.all(8.0),
decoration: BoxDecoration(border: Border.all(width: 0.25)),
),
),
],
),
),
new Container(
width: MediaQuery.of(context).size.width,
margin: const EdgeInsets.only(left: 30.0, right: 30.0, top: 20.0),
child: new Row(
children: <Widget>[
new Expanded(
child: new Container(
margin: EdgeInsets.only(right: 8.0),
alignment: Alignment.center,
child: new Row(
children: <Widget>[
new Expanded(
child: new FlatButton(
shape: new RoundedRectangleBorder(
borderRadius: new BorderRadius.circular(30.0),
),
color: Color(0Xff3B5998),
onPressed: () => {},
child: new Container(
child: new Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
new Expanded(
child: new FlatButton(
padding: EdgeInsets.only(
top: 20.0,
bottom: 20.0,
),
child: new Row(
mainAxisAlignment:
MainAxisAlignment.spaceEvenly,
children: <Widget>[
Icon(
const IconData(0xea90,
fontFamily: 'icomoon'),
color: Colors.white,
size: 15.0,
),
Text(
"FACEBOOK",
textAlign: TextAlign.center,
style: TextStyle(
color: Colors.white,
fontWeight: FontWeight.bold),
),
],
),
),
),
],
),
),
),
),
],
),
),
),
new Expanded(
child: new Container(
margin: EdgeInsets.only(left: 8.0),
alignment: Alignment.center,
child: new Row(
children: <Widget>[
new Expanded(
child: new FlatButton(
shape: new RoundedRectangleBorder(
borderRadius: new BorderRadius.circular(30.0),
),
color: Color(0Xffdb3236),
onPressed: () => {},
child: new Container(
child: new Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
new Expanded(
child: new FlatButton(
padding: EdgeInsets.only(
top: 20.0,
bottom: 20.0,
),
child: new Row(
mainAxisAlignment:
MainAxisAlignment.spaceEvenly,
children: <Widget>[
Icon(
const IconData(0xea88,
fontFamily: 'icomoon'),
color: Colors.white,
size: 15.0,
),
Text(
"GOOGLE",
textAlign: TextAlign.center,
style: TextStyle(
color: Colors.white,
fontWeight: FontWeight.bold),
),
],
),
),
),
],
),
),
),
),
],
),
),
),
],
),
)
],
),
));
}
Does anyone know what could be the issue ?
I would suggest replacing the top Column widget with a ListView, that automatically resizes on keyboard input, whilst also supporting scrolling.
If you really want this setup as it is, you can edit your Scaffold with the parameter
resizeToAvoidBottomPadding: false
That should make the error disappear
Scaffold(
resizeToAvoidBottomInset: false, // set it to false
...
)
As Andrey said, you may have issues with scrolling, so you may try
Scaffold(
resizeToAvoidBottomInset: false, // set it to false
body: SingleChildScrollView(child: YourBody()),
)
With resizeToAvoidBottomPadding: false in Scaffold, You don't see all the widgets that are below the open textfield. The solution is to insert a container with a SingleChildScrollView inside. Example:
Container(
alignment: Alignment.center,
width: double.infinity,
height: double.infinity,
color: viewModel.color,
child: SingleChildScrollView(child:"Your widgets"));
you usually need to provide a scroll widget on top of your widgets because if you try to open the keyboard or change the orientation of your phone, flutter needs to know how to handle the distribution of the widgets on the screen.
Please review this resource, you can check the different options that flutter provide Out of the box, and choose the best option for your scenario.
https://flutter.io/widgets/scrolling/
wrap your child view into ListView will solve the prob. Please check this
class _LoginScreenState extends State<LoginScreen> {
#override
Widget build(BuildContext context) {
return new Scaffold(
body: new Container(
child: ListView(
children: <Widget>[
Padding(
padding: const EdgeInsets.all(8.0),
child: new Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
new Padding(
padding: EdgeInsets.only(left: 1,top: 50,right: 1,bottom: 1),
child: new Text("jk", style: TextStyle(fontFamily: "mono_bold")),
),
new Padding(
padding: EdgeInsets.only(left: 1,top: 50,right: 1,bottom: 1),
child: new TextField(
style: new TextStyle(),
decoration: InputDecoration(
labelText: "Email",
contentPadding: EdgeInsets.all(8.0)
),
keyboardType: TextInputType.emailAddress,
)
),
new Padding(
padding: EdgeInsets.only(left: 1,top: 50,right: 1,bottom: 1),
child: new TextField(
style: new TextStyle(
),
decoration: InputDecoration(
labelText: "Password"
),
keyboardType: TextInputType.text,
obscureText: true,
),
),
],
),
),
],
)
),
);
}
wrap your column into SingleChildScrollView will solve the problem. Please check this:
Widget build(BuildContext context) {
return Scaffold(
body: Container(
child: Center(
child: SingleChildScrollView(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
TextField(),
TextField(),
],
),
))));
}
And You also use for removing yellow black overflow line
resizeToAvoidBottomPadding: false
but in this case, TextField does not move up on click time.
wrap with SingleChildScrollView Widget here's my code to solve this situation:
it is best and easiest method
SingleChildScrollView(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
crossAxisAlignment: CrossAxisAlignment.stretch,
children: <Widget>[
Hero(
tag: 'logo',
child: Container(
height: 200.0,
child: Image.asset('images/logo.png'),
),
),
SizedBox(
height: 48.0,
),
TextField(
onChanged: (value) {
//Do something with the user input.
},
decoration: kTextFieldDecoration.copyWith(hintText: 'Enter username'),
),
SizedBox(
height: 8.0,
),
TextField(
onChanged: (value) {
//Do something with the user input.
},
decoration: kTextFieldDecoration.copyWith(hintText: 'Enter password'),
),
SizedBox(
height: 24.0,
),
RoundedButton(
colour: Colors.blueAccent,
text: 'Register',
onPressed: () {
//later todo
},
),
],
),
),
You can set resizeToAvoidBottomInset: false for avoiding overflow, but you can't reach fields in bottom of page, which can be covered by keyboard.
Or you can wrap body of Scaffold inside SingleChildScrollView
You can enclose all the widgets within the ListView.
So you can scroll it and the overloaded will disappear.
you should add resizeToAvoidBottomInset: false, and put your button in child:SingleChildScrollView() like the following code below :
Widget build(BuildContext context) {
return Scaffold(
resizeToAvoidBottomInset: false,
appBar: PreferredSize(
preferredSize:const Size(double.infinity,100),
child:(ResponsiveLayout.isTinyLimit(context) ||
ResponsiveLayout.isTinyHeightLimit(context))
? Container()
: const AppBarWidget(),
),
body: Center(
child:SingleChildScrollView(
child: Padding(
padding: const EdgeInsets.all(8.0),
child: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center ,
children: [
Text("Temperature"),
LineChartSample2(),
Text("Gas Level"),
LineChartSample2(),
on?Icon(Icons.lightbulb,
size:100,
color: Colors.lightBlue.shade700 ,
):const Icon(Icons.lightbulb_outline,
size:100,
),
ElevatedButton(
style: TextButton.styleFrom(
backgroundColor: on? Colors.green: Colors.white10),
onPressed: (){
dbR.child("movement").set({"Switch":!on});
setState(() {
on = !on;
});
},
child:on ? const Text("On"):const Text("Off"))
],
),
),
) ),
),
);
Put your content in to SingleChildScrollView and add a ConstrainedBox and try
https://api.flutter.dev/flutter/widgets/SingleChildScrollView-class.html
Wrap your top column inside SingleChildScrollView.
Make you layout scrollable.
You can wrap your Fields in single child ScrollView of Flutter.
This align items bottom to top,
Try this..
child: SizedBox(
height: MediaQuery.of(context).size.height,
child: SingleChildScrollView(
reverse: true,
Remove unwanted padding top and bottom
child: Container(
height: size.height,
width: size.width,
padding: EdgeInsets.only(
left: size.width * 0.15,
right: size.width * 0.15,
top: size.width * 0.15,
bottom: size.width * 0.15,
),
to change by this
child: Container(
height: size.height,
width: size.width,
padding: EdgeInsets.only(
left: size.width * 0.15,
right: size.width * 0.15,
),
This worked for me.
please set resizeToAvoidBottomPadding: false and set scrollPadding in textField
Instead of column widget try to use flex widget, which might solve your problem.
Try wrapping your main Column with
1.(ListView and give property shrinkWrap: true,) List view has property children: [], or
2.( SingleChildScrollView() )but it has only child: , .
Something like:
child: ListView(shrinkWrap: true, children: <Widget>[
new Column(children: <Widget>[
Container(
padding: EdgeInsets.all(120.0),
child: Center(
child: Icon(
Icons.headset_mic,
color: Colors.redAccent,
size: 50.0,
),
),
),
new Row(
children: <Widget>[
new Expanded(
child: new Padding(
padding: const EdgeInsets.only(left: 40.0),
child: new Text(
"EMAIL",
style: TextStyle(
fontWeight: FontWeight.bold,
color: Colors.redAccent,
fontSize: 15.0,
),
),
),
),
],
),
new Container(
width: MediaQuery.of(context).size.width,
margin: const EdgeInsets.only(
left: 40.0, right: 40.0, top: 10.0),
alignment: Alignment.center,
decoration: BoxDecoration(
border: Border(
bottom: BorderSide(
color: Colors.redAccent,
width: 0.5,
style: BorderStyle.solid),
),
),
padding: const EdgeInsets.only(left: 0.0, right: 10.0),
child: new Row(
crossAxisAlignment: CrossAxisAlignment.center,
mainAxisAlignment: MainAxisAlignment.start,
children: <Widget>[
new Expanded(
child: TextField(
obscureText: true,
textAlign: TextAlign.left,
decoration: InputDecoration(
border: InputBorder.none,
hintText: 'samarthagarwal#live.com',
hintStyle: TextStyle(color: Colors.grey),
),
),
),
],
),
),
Divider(
height: 24.0,
),
new Row(
children: <Widget>[
new Expanded(
child: new Padding(
padding: const EdgeInsets.only(left: 40.0),
child: new Text(
"PASSWORD",
style: TextStyle(
fontWeight: FontWeight.bold,
color: Colors.redAccent,
fontSize: 15.0,
),
),
),
),
],
),
new Container(
width: MediaQuery.of(context).size.width,
margin: const EdgeInsets.only(
left: 40.0, right: 40.0, top: 10.0),
alignment: Alignment.center,
decoration: BoxDecoration(
border: Border(
bottom: BorderSide(
color: Colors.redAccent,
width: 0.5,
style: BorderStyle.solid),
),
),
padding: const EdgeInsets.only(left: 0.0, right: 10.0),
child: new Row(
crossAxisAlignment: CrossAxisAlignment.center,
mainAxisAlignment: MainAxisAlignment.start,
children: <Widget>[
new Expanded(
child: TextField(
obscureText: true,
textAlign: TextAlign.left,
decoration: InputDecoration(
border: InputBorder.none,
hintText: '*********',
hintStyle: TextStyle(color: Colors.grey),
),
),
),
],
),
),
])
]),
Hi I am trying to build a login screen in flutter but I am getting below error when opening it.
No material widget found textfield widgets require a material widget ancestor
import 'package:flutter/material.dart';
Widget LoginPage() {
return new Container(
height: MediaQuery.of(context).size.height,
decoration: BoxDecoration(
color: Colors.white,
image: DecorationImage(
colorFilter: new ColorFilter.mode(
Colors.black.withOpacity(0.05), BlendMode.dstATop),
image: AssetImage('assets/images/mountains.jpg'),
fit: BoxFit.cover,
),
),
child: new Column(
children: <Widget>[
Container(
padding: EdgeInsets.all(120.0),
child: Center(
child: Icon(
Icons.headset_mic,
color: Colors.redAccent,
size: 50.0,
),
),
),
new Row(
children: <Widget>[
new Expanded(
child: new Padding(
padding: const EdgeInsets.only(left: 40.0),
child: new Text(
"EMAIL",
style: TextStyle(
fontWeight: FontWeight.bold,
color: Colors.redAccent,
fontSize: 15.0,
),
),
),
),
],
),
new Container(
width: MediaQuery.of(context).size.width,
margin: const EdgeInsets.only(left: 40.0, right: 40.0, top: 10.0),
alignment: Alignment.center,
decoration: BoxDecoration(
border: Border(
bottom: BorderSide(
color: Colors.redAccent,
width: 0.5,
style: BorderStyle.solid),
),
),
padding: const EdgeInsets.only(left: 0.0, right: 10.0),
child: new Row(
crossAxisAlignment: CrossAxisAlignment.center,
mainAxisAlignment: MainAxisAlignment.start,
children: <Widget>[
new Expanded(
child: TextField(
obscureText: true,
textAlign: TextAlign.left,
decoration: InputDecoration(
border: InputBorder.none,
hintText: 'samarthagarwal#live.com',
hintStyle: TextStyle(color: Colors.grey),
),
),
),
],
),
),
Divider(
height: 24.0,
),
new Row(
children: <Widget>[
new Expanded(
child: new Padding(
padding: const EdgeInsets.only(left: 40.0),
child: new Text(
"PASSWORD",
style: TextStyle(
fontWeight: FontWeight.bold,
color: Colors.redAccent,
fontSize: 15.0,
),
),
),
),
],
),
new Container(
width: MediaQuery.of(context).size.width,
margin: const EdgeInsets.only(left: 40.0, right: 40.0, top: 10.0),
alignment: Alignment.center,
decoration: BoxDecoration(
border: Border(
bottom: BorderSide(
color: Colors.redAccent,
width: 0.5,
style: BorderStyle.solid),
),
),
padding: const EdgeInsets.only(left: 0.0, right: 10.0),
child: new Row(
crossAxisAlignment: CrossAxisAlignment.center,
mainAxisAlignment: MainAxisAlignment.start,
children: <Widget>[
new Expanded(
child: TextField(
obscureText: true,
textAlign: TextAlign.left,
decoration: InputDecoration(
border: InputBorder.none,
hintText: '*********',
hintStyle: TextStyle(color: Colors.grey),
),
),
),
],
),
),
Divider(
height: 24.0,
),
new Row(
mainAxisAlignment: MainAxisAlignment.end,
children: <Widget>[
Padding(
padding: const EdgeInsets.only(right: 20.0),
child: new FlatButton(
child: new Text(
"Forgot Password?",
style: TextStyle(
fontWeight: FontWeight.bold,
color: Colors.redAccent,
fontSize: 15.0,
),
textAlign: TextAlign.end,
),
onPressed: () => {},
),
),
],
),
new Container(
width: MediaQuery.of(context).size.width,
margin: const EdgeInsets.only(left: 30.0, right: 30.0, top: 20.0),
alignment: Alignment.center,
child: new Row(
children: <Widget>[
new Expanded(
child: new FlatButton(
shape: new RoundedRectangleBorder(
borderRadius: new BorderRadius.circular(30.0),
),
color: Colors.redAccent,
onPressed: () => {},
child: new Container(
padding: const EdgeInsets.symmetric(
vertical: 20.0,
horizontal: 20.0,
),
child: new Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
new Expanded(
child: Text(
"LOGIN",
textAlign: TextAlign.center,
style: TextStyle(
color: Colors.white,
fontWeight: FontWeight.bold),
),
),
],
),
),
),
),
],
),
),
new Container(
width: MediaQuery.of(context).size.width,
margin: const EdgeInsets.only(left: 30.0, right: 30.0, top: 20.0),
alignment: Alignment.center,
child: Row(
children: <Widget>[
new Expanded(
child: new Container(
margin: EdgeInsets.all(8.0),
decoration: BoxDecoration(border: Border.all(width: 0.25)),
),
),
Text(
"OR CONNECT WITH",
style: TextStyle(
color: Colors.grey,
fontWeight: FontWeight.bold,
),
),
new Expanded(
child: new Container(
margin: EdgeInsets.all(8.0),
decoration: BoxDecoration(border: Border.all(width: 0.25)),
),
),
],
),
),
new Container(
width: MediaQuery.of(context).size.width,
margin: const EdgeInsets.only(left: 30.0, right: 30.0, top: 20.0),
child: new Row(
children: <Widget>[
new Expanded(
child: new Container(
margin: EdgeInsets.only(right: 8.0),
alignment: Alignment.center,
child: new Row(
children: <Widget>[
new Expanded(
child: new FlatButton(
shape: new RoundedRectangleBorder(
borderRadius: new BorderRadius.circular(30.0),
),
color: Color(0Xff3B5998),
onPressed: () => {},
child: new Container(
child: new Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
new Expanded(
child: new FlatButton(
padding: EdgeInsets.only(
top: 20.0,
bottom: 20.0,
),
child: new Row(
mainAxisAlignment:
MainAxisAlignment.spaceEvenly,
children: <Widget>[
Icon(
const IconData(0xea90,
fontFamily: 'icomoon'),
color: Colors.white,
size: 15.0,
),
Text(
"FACEBOOK",
textAlign: TextAlign.center,
style: TextStyle(
color: Colors.white,
fontWeight: FontWeight.bold),
),
],
),
),
),
],
),
),
),
),
],
),
),
),
new Expanded(
child: new Container(
margin: EdgeInsets.only(left: 8.0),
alignment: Alignment.center,
child: new Row(
children: <Widget>[
new Expanded(
child: new FlatButton(
shape: new RoundedRectangleBorder(
borderRadius: new BorderRadius.circular(30.0),
),
color: Color(0Xffdb3236),
onPressed: () => {},
child: new Container(
child: new Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
new Expanded(
child: new FlatButton(
padding: EdgeInsets.only(
top: 20.0,
bottom: 20.0,
),
child: new Row(
mainAxisAlignment:
MainAxisAlignment.spaceEvenly,
children: <Widget>[
Icon(
const IconData(0xea88,
fontFamily: 'icomoon'),
color: Colors.white,
size: 15.0,
),
Text(
"GOOGLE",
textAlign: TextAlign.center,
style: TextStyle(
color: Colors.white,
fontWeight: FontWeight.bold),
),
],
),
),
),
],
),
),
),
),
],
),
),
),
],
),
)
],
),
);
}
Does anyone know how to resolve it ?
Error states that TextField widgets require a Material widget ancestor. Simply wrapping your whole loginWidget into Scaffold will solve the problem.
Widget LoginPage() {
return new Scaffold(body: *your whole code*)
}
Just wrap your widget with Material like this:
#override
Widget build(BuildContext context) {
return Material(
child: YourAwesomeWidget(),
}
Since most of the widget asks for material widget as their parent widget
its a good practice you should use Material() or Scaffold() widget on top of the widget tree and then continue your code.
#override
Widget build(BuildContext context) {
return Material(
child: body(),
}
OR
#override
Widget build(BuildContext context) {
return Scaffold(
child: body(),
}
Wrap the loginpage function with a Scaffold or a MaterialApp
Widget LoginPage() {
return new Scaffold(
body: Container(
*the rest of your code*
),
);
}
or
Widget LoginPage() {
return new MaterialApp(
home: Container(
*the rest of your code*
),
);
}
I encountered your same problem. Always remember to enter Scaffold remembering that it must be included as a parent who creates the page, inside it after, you will insert all the widgets you want, but Scaffold after MaterialApp is the second component that must be added if you are creating a new page.
I got this error when trying to show a TextFormField as my content widget in a CupertinoDialogAlert. My fix was to wrap content in a Card with an elevation of 0 and transparent color. content is an argument passed as a Widget. So it could really be any type of widget. I noticed that if I pass a Text widget, it loses its centering, so I programmatically do that as well.
return CupertinoAlertDialog(
title: title,
content: Card(
elevation: 0,
color: Colors.transparent,
child: (content is Text)
? Text(content.toString(), textAlign: TextAlign.center)
: content,
actions: actions);