本文介绍了SingleChildScrollView 下的 MainAxisAlignment 不起作用的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
I developed a login screen in which first i get the render flex error when i open the keyboard so for that i wrap my widgets in SingleChildScrollView, but after that mainAxisAlignment of Column is not working but when i removed SingleChildScrollView then everything working fine except render flex error. i don't know what to do kindly help please.Following is the code:
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
class LoginScreenOne extends StatelessWidget {
@override
Widget build(BuildContext context) {
return Scaffold(
body: SafeArea(
child: Stack(
children: [
Container(
height: double.infinity,
width: double.infinity,
color: Colors.blue,
),
SingleChildScrollView(
child: Column(
crossAxisAlignment: CrossAxisAlignment.stretch,
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Container(
width: double.infinity,
child: Padding(
padding: const EdgeInsets.only(top: 70, left: 20),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Icon(
Icons.keyboard_arrow_up,
size: 30,
color: Colors.white,
),
Text(
"Login Screen",
style: TextStyle(
color: Colors.white,
fontSize: 24,
fontWeight: FontWeight.bold),
),
],
),
),
),
Container(
width: double.infinity,
height: MediaQuery.of(context).size.height * 0.6,
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.only(
topLeft: Radius.circular(30),
topRight: Radius.circular(30),
),
),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Padding(
padding: const EdgeInsets.only(top: 50, left: 20),
child: Text(
"Welcome",
style: TextStyle(
fontWeight: FontWeight.bold, fontSize: 20),
),
),
Padding(
padding: const EdgeInsets.all(20),
child: TextField(
decoration: InputDecoration(
icon: Icon(Icons.email),
hintText: "Enter User Name"),
),
),
Padding(
padding: const EdgeInsets.all(20),
child: TextField(
obscureText: true,
decoration: InputDecoration(
icon: Icon(Icons.vpn_key),
hintText: "Enter Password"),
),
),
Padding(
padding: const EdgeInsets.all(20),
child: Container(
width: double.infinity,
height: 50,
child: FlatButton(
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(15),
side: BorderSide(width: 2, color: Colors.blue)),
textColor: Colors.blue,
child: Text(
"Sign In",
style: TextStyle(
fontWeight: FontWeight.bold, fontSize: 16),
),
onPressed: () {},
),
),
),
Center(
child: Text(
"Forgot Password",
style: TextStyle(color: Colors.grey),
),
),
Padding(
padding: const EdgeInsets.all(20),
child: Container(
width: double.infinity,
height: 50,
child: FlatButton(
textColor: Colors.white,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(15)
),
child: Text("Create Account"),
color: Colors.blue,
onPressed: () {},
),
),
)
],
),
)
],
),
),
],
),
));
}
}
解决方案
You can try this code blocks
CustomScrollView(
scrollDirection: Axis.vertical,
slivers: [
SliverFillRemaining(
hasScrollBody: false,
child: Column(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: [
Text('test'),
for (int i = 0; i < 10; i++) const FlutterLogo(size: 80)
],
),
),
],
),
这篇关于SingleChildScrollView 下的 MainAxisAlignment 不起作用的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!