Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Material(
elevation: 30.0,
shadowColor: Colors.grey,
child: SizedBox(
width: 300,
child: TextField(
controller: heightcon,
style: TextStyle(
color: Colors.black,
fontSize: 30,
),
decoration: InputDecoration(
border: OutlineInputBorder(),
hintText: 'Height',
focusedBorder: OutlineInputBorder(
borderRadius: BorderRadius.circular(0.0),
borderSide: BorderSide(
color: Colors.black,
width: 2.0,
),
),
enabledBorder: OutlineInputBorder(
borderRadius: BorderRadius.circular(0.0),
borderSide: BorderSide(
color: Colors.black54,
width: 2.0,
),
),
),
onChanged: (heightval) {
print('First text field: $heightval');
globals.heightvalue = double.parse(heightval);
},
),
),
),
Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Flexible(
child: SizedBox(
child: Radio(
value: 1,
groupValue: 1,
onChanged: (value) {},
)),
),
SizedBox(
width: 10,
),
SizedBox(
child: Flexible(
child: Text("Radio 1"),
)),
Flexible(
child: SizedBox(
child: Radio(
value: 1,
groupValue: 1,
onChanged: (value) {},
)),
),
SizedBox(
width: 10,
),
SizedBox(
child: Flexible(
child: Text("Radio 1"),
))
],
),
],
),
The error show like thid:
════════ Exception caught by rendering library ═════════════════════════════════ RenderBox was not laid out: RenderFlex#c7c48 relayoutBoundary=up1 NEEDS-PAINT NEEDS-COMPOSITING-BITS-UPDATE 'package:flutter/src/rendering/box.dart': Failed assertion: line 1930 pos 12: 'hasSize'
The relevant error-causing widget was Scaffold lib\main.dart:25 ════════════════════════════════════════════════════════════════════════════════
Container(
margin: EdgeInsets.symmetric(horizontal: 20),
width: MediaQuery.of(context).size.width / 2,
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: [
Text("gender"),
Radio(
value: "male",
groupValue: 1,
onChanged: (onChanged) {})
],
),