问题
i ran in to Problem while trying Textfield Widget :"bottom overflowed by 48pixels".after that i tried to use SingleChildScrollView widget,but it became more complicated,it shows now this error:
======== Exception caught by rendering library ===================================================== RenderBox was not laid out: RenderCustomPaint#7fee2 relayoutBoundary=up3 NEEDS-PAINT
any Suggestion how can i solve this Problem?!
emulator without use of SingleCHildScrollView
import 'package:flutter/material.dart';
import 'package:filter_list/filter_list.dart';
class FilterPage extends StatefulWidget {
const FilterPage({Key key, this.allTextList}) : super(key: key);
final List<String> allTextList;
@override
_FilterPageState createState() => _FilterPageState();
}
class _FilterPageState extends State<FilterPage> {
@override
Widget build(BuildContext context) {
List<String> countList = [
"Art",
"Markt",
"Photography",
];
return Scaffold(
appBar: AppBar(
title: Text("Filter list Page"),
),
body: SafeArea(
child: SingleChildScrollView(
child: Column(
children: [
Flexible(
flex: 2,
child: FilterListWidget(
allTextList: countList,
hideheaderText: true,
selectedTextBackgroundColor: Colors.red,
applyButonTextBackgroundColor: Colors.red,
allResetButonColor: Colors.grey,
onApplyButtonClick: (list) {
//Navigator.pop(context, list);
},
),
),
Flexible(
flex: 3,
child: Column(
mainAxisAlignment: MainAxisAlignment.start,
children: [
Row(
children: [
Container(
width: 160,
child: TexstInput(lable: 'min-Upvote',icons: Icons.favorite,),
),
Container(
width: 160,
child: TexstInput(lable: 'max-Upvote'),
),
],
),
SizedBox(height: 25),
Row(
children: [
Container(
width: 160,
child: TexstInput(lable: 'min ',icons: Icons.person,),
),
Container(
width: 160,
child: TexstInput(lable: 'max '),
),
],
),
SizedBox(height: 25,),
Row(
children: [
SizedBox(width: 10),
RaisedButton(child:Text(
'back'
),onPressed: (){},),
],
),
SizedBox(height: 25),
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
RaisedButton(child:Text(
'back'
),onPressed: (){},),
SizedBox(width: 10,),
RaisedButton(child:Text(
'apply'
),onPressed: (){})
],
),
],
),
),
],
),
),
),
);
}
}
class TexstInput extends StatelessWidget {
TexstInput({
@required this.lable, this.icons
}) ;
IconData icons;
String lable;
@override
Widget build(BuildContext context) {
return TextField(
keyboardType: TextInputType.number,
decoration: InputDecoration(
icon: Icon(icons),
contentPadding: EdgeInsets.symmetric(vertical: 10.0, horizontal: 20.0),
labelText: lable,
focusedBorder: OutlineInputBorder(
borderSide: BorderSide(color: Colors.red, width: 5.0),
),
enabledBorder: OutlineInputBorder(
borderSide: BorderSide(color: Colors.grey, width: 0.8),
)
),
);
}
}
回答1:
I noticed that the error is coming from the FilterListWidget. Maybe this can solve your issue
Scaffold(
appBar: AppBar(
title: Text("Filter list Page"),
),
body: Column(
children: [
Flexible(
child: FilterListWidget(
allTextList: countList,
hideheaderText: true,
selectedTextBackgroundColor: Colors.red,
applyButonTextBackgroundColor: Colors.red,
allResetButonColor: Colors.grey,
onApplyButtonClick: (list) {
//Navigator.pop(context, list);
},
),
),
Expanded(
child: SingleChildScrollView(
child: Column(
mainAxisAlignment: MainAxisAlignment.start,
children: [
Row(
children: [
Container(
width: 160,
child: TexstInput(lable: 'min-Upvote',icons: Icons.favorite,),
),
Container(
width: 160,
child: TexstInput(lable: 'max-Upvote'),
),
],
),
SizedBox(height: 25),
Row(
children: [
Container(
width: 160,
child: TexstInput(lable: 'min ',icons: Icons.person,),
),
Container(
width: 160,
child: TexstInput(lable: 'max '),
),
],
),
SizedBox(height: 25,),
Row(
children: [
SizedBox(width: 10),
RaisedButton(child:Text(
'back'
),onPressed: (){},),
],
),
SizedBox(height: 25),
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
RaisedButton(child:Text(
'back'
),onPressed: (){},),
SizedBox(width: 10,),
RaisedButton(child:Text(
'apply'
),onPressed: (){})
],
),
],
),
),
),
],
),
)
来源：https://stackoverflow.com/questions/65483783/using-singlechildscrollview-whit-flexible-widget