So i have this build method:
@override
Widget build(BuildContext context) {
return Scaffold(
body: _createBody(),
);
}
Widget _createBody(){
return SafeArea(
child: Column(
children: [
Container(
margin: const EdgeInsets.only(top: 5, left: 10, right: 10),
child: Row(
crossAxisAlignment: CrossAxisAlignment.center,
children: [
Text(
"xOrder HD",
style: TextStyle(
color: Colors.blue[900],
fontSize: 36
),
),
Container(
padding: const EdgeInsets.only(left: 13, top: 13),
alignment: Alignment.bottomLeft,
child: Text(AppVersion.xOrderVersion()),
)
],
)
),
Container(
margin: const EdgeInsets.symmetric(horizontal: 10),
child: Row(
crossAxisAlignment: CrossAxisAlignment.center,
children: [
Text(
AppLocalizations.of(context)!.solutionFor,
textAlign: TextAlign.start,
),
],
)
),
Expanded(
child: Container(
margin: const EdgeInsets.only(left: 25, right: 25, top: 20, bottom: 10),
child: Row(
children: [
Expanded(
child: Container(
child: Column(
children: [
Container(
padding: const EdgeInsets.symmetric(vertical: 10),
child: Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Text(
AppLocalizations.of(context)!.companyList,
style: const TextStyle(
color: Colors.white,
fontSize: 16,
fontWeight: FontWeight.bold,
)
),
],
),
decoration: BoxDecoration(
color: mainColor,
borderRadius: const BorderRadius.only(topLeft: Radius.circular(4), topRight: Radius.circular(4))
),
),
_loadedAziende.isEmpty ?
Expanded(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Text(
AppLocalizations.of(context)!.noCompanyFound,
style: const TextStyle(
color: Colors.black54,
fontSize: 16
)
),
const SizedBox(height: 50,),
GestureDetector(
onTap: () {
Navigator.push(context, MaterialPageRoute(builder: (context) => QrCodeScanner(delegate: this,)));
},
child: Material(
elevation: 5,
borderRadius: const BorderRadius.all(Radius.circular(5)),
child: Container(
padding: const EdgeInsets.symmetric(vertical: 10, horizontal: 10),
child: Row(
mainAxisSize: MainAxisSize.min,
children: [
const Icon(Icons.add, color: Colors.white,),
const SizedBox(width: 10,),
Text(
AppLocalizations.of(context)!.newCompany,
style: const TextStyle(
fontSize: 16,
fontWeight: FontWeight.bold,
color: Colors.white,
)
),
],
),
decoration: BoxDecoration(
color: mainColor,
borderRadius: const BorderRadius.all(Radius.circular(5))
),
),
)
)
],
)
)
:
Expanded(
child: Stack(
children: [
ListView.separated(
itemCount: _aziendeToShow.length,
itemBuilder: (ctx, index) {
return InfoCell(
info: _aziendeToShow[index],
delegate: this,
);
},
separatorBuilder: (ctx, index) => const Divider(height: 1,),
),
Positioned(
bottom: 15,
right: 15,
child: GestureDetector(
onTap: () {
Navigator.push(context, MaterialPageRoute(builder: (context) => QrCodeScanner(delegate: this,)));
},
child: Container(
padding: const EdgeInsets.all(10),
child: const Icon(Icons.qr_code_scanner, color: Colors.white, size: 28),
decoration: BoxDecoration(
color: mainColor,
shape: BoxShape.circle
),
)
)
)
],
)
)
],
),
decoration: BoxDecoration(
color: Colors.grey[100],
border: Border.all(color: Colors.grey[500]!),
borderRadius: const BorderRadius.all(Radius.circular(5))
),
),
),
if(_loadedAziende.isNotEmpty)
const SizedBox(width: 25,),
if(_loadedAziende.isNotEmpty)
Expanded(
child: Container(
child: Column(
children: [
Container(
padding: const EdgeInsets.symmetric(vertical: 10),
child: Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Text(
AppLocalizations.of(context)!.login,
style: const TextStyle(
color: Colors.white,
fontSize: 16,
fontWeight: FontWeight.bold,
)
),
],
),
decoration: BoxDecoration(
color: mainColor,
borderRadius: const BorderRadius.only(topLeft: Radius.circular(4), topRight: Radius.circular(4))
),
),
isEmptyOrNull(_selectedAzienda) ?
Expanded(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Text(
AppLocalizations.of(context)!.selectAcompany,
style: const TextStyle(
color: Colors.black54,
fontSize: 16
)
),
],
)
)
:
Expanded(
child: Column(
children: [
Container(
height: 150,
margin: const EdgeInsets.symmetric(vertical: 20, horizontal: 10),
decoration: BoxDecoration(
shape: BoxShape.circle,
border: Border.all(color: Colors.grey[400]!),
image: DecorationImage(
image: Image.network(_selectedAzienda!.aziendaLogo).image,
fit: BoxFit.contain
)
),
),
Text(
_selectedAzienda!.aziendaCode,
style: const TextStyle(
color: Colors.black,
fontSize: 25,
fontWeight: FontWeight.bold
),
),
Container(
margin: const EdgeInsets.symmetric(vertical: 30, horizontal: 15),
child: const TextField(
decoration: InputDecoration(
filled: true,
fillColor: Colors.white,
icon: Icon(Icons.person),
border: OutlineInputBorder(),
labelText: 'Username',
),
)
),
Container(
margin: const EdgeInsets.only(bottom: 30, left: 15, right: 15),
child: const TextField(
obscureText: true,
decoration: InputDecoration(
filled: true,
fillColor: Colors.white,
icon: Icon(Icons.password),
border: OutlineInputBorder(),
labelText: 'Password',
),
)
),
const Spacer(),
Container(
margin: const EdgeInsets.symmetric(vertical: 15, horizontal: 15),
padding: const EdgeInsets.symmetric(vertical: 10, horizontal: 15),
child: Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
const Icon(Icons.login, color: Colors.white,),
const SizedBox(width: 15,),
Text(
AppLocalizations.of(context)!.login,
style: const TextStyle(
fontSize: 22,
color: Colors.white,
fontWeight: FontWeight.bold
),
)
],
),
decoration: BoxDecoration(
color: mainColor,
borderRadius: const BorderRadius.all(Radius.circular(5))
),
)
],
)
)
],
),
decoration: BoxDecoration(
color: Colors.grey[100],
border: Border.all(color: Colors.grey[500]!),
borderRadius: const BorderRadius.all(Radius.circular(5))
)
),
)
],
),
),
),
Row(
mainAxisAlignment: MainAxisAlignment.end,
children: [
Container(
margin: const EdgeInsets.all(10),
height: 82,
width: 135,
decoration: BoxDecoration(
image: DecorationImage(
image: Image.asset("assets/images/logo-axentya-inv.png").image,
fit: BoxFit.fill
)
),
)
],
)
],
),
);
}
And this is the final result:
The problem presents when i click on the TextField and the keyboard shows up going above the TextFields and showing up the black and yellow banner:
I don't know why in this screenshot the keyboard doesn't show up, but i swear that is opened.
If i try to put the main Column container inside a SingleChildScrollView, the compiler tells me it cannot render it cause I'm not specifying the height dimensions. How should i fix this.
CodePudding user response：
Add this resizeToAvoidBottomPadding: false to the Scaffold.
@override
Widget build(BuildContext context) {
return Scaffold(
resizeToAvoidBottomPadding: false,
body: _createBody(),
);
}
EDIT:
If you use de flutter_keyboard_visibility to reduce the logo image when the soft Keyboard is shown would be something like this:
import 'package:flutter_keyboard_visibility/flutter_keyboard_visibility.dart';
@override
Widget build(BuildContext context) {
return KeyboardVisibilityBuilder(builder: (context, isKeyboardVisible) {
return Scaffold(
resizeToAvoidBottomInset: false,
body: _createBody(isKeyboardVisible),
);
});
}
Widget _createBody(bool isKeyboardVisible) {
...
Expanded(
child: Column(
children: [
Container(
height: isKeyboardVisible ? 50 : 150, <<--- HERE
margin: const EdgeInsets.symmetric(
vertical: 20, horizontal: 10),
decoration: BoxDecoration(
shape: BoxShape.circle,
border:
Border.all(color: Colors.grey[400]!),
image: DecorationImage(...
),
}
CodePudding user response：
The answer is in the error itself. When the column is inside a view that is scrollable, the column is trying to shrink-wrap its content but since you used Expanded as a child of the column it is working opposite to the column trying to shrink-wrap its children. This is causing this error because these two directives are completely opposite to each other.
As mentioned in the error logs try the following:
Consider setting mainAxisSize to MainAxisSize.min (for column) and using FlexFit.loose fits for the flexible(use Flexible rather than Expanded).
CodePudding user response：
You cannot use Expanded inside SingleChildScrollView. However, you can use CustomScrollView along with SliverFillRemaining widget to achieve that:
@override
Widget build(BuildContext context) {
return Scaffold(
body: CustomScrollView(
slivers: [
SliverFillRemaining(
hasScrollBody: false,
child: _createBody(),
)
],
),
);
}