A RenderFlex overflowed by 86 pixels on the bottom in Flutter - flutter

Question

I am creating an app in flutter and in the portrait mode everything looks fine but when it comes to landscape mode it will be triggered with an error saying A RenderFlex overflowed by 86 pixels on the bottom. Below is my all code that I have tried and also I have shared the images, please refer to the same for more clarification.
import 'dart:math';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
// This widget is the root of your application.
#override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
theme: ThemeData(
primarySwatch: Colors.blue,
brightness: Brightness.dark
),
debugShowCheckedModeBanner: false,
home: MyHomePage(),
);
}
}
class MyHomePage extends StatelessWidget {
#override
Widget build(BuildContext context) {
return Scaffold(
resizeToAvoidBottomPadding: false,
body: new Stack(
children: <Widget>[
Container(
decoration: ShapeDecoration(
gradient:LinearGradient(
begin: Alignment.bottomLeft,
end: Alignment.topRight,
colors: [Colors.yellow,Colors.yellow,Colors.orangeAccent,Colors.deepOrange,]
),
// color: Colors.deepOrangeAccent,
shape: CustomShapeBorder(),
),
),
Column(
children: <Widget>[
Padding(
padding: const EdgeInsets.only(top: 200.0,left: 50.0),
child: Text(
"SET, MATCH AND CHALLENGE",
style: TextStyle(
fontSize: 40.0,
),
),
),
Padding(
padding: const EdgeInsets.only(left: 30.0,right: 30.0, top: 30.0),
child: Text(
"A simple, fun, and a creative way to "
"set the bespoke challenges with "
"either a friend or a group of "
"friends anywhere in the world",
textAlign: TextAlign.justify,
style: TextStyle(
color: Colors.white
),
),
),
Container(
width: 300.0,
height: 60.0,
margin: const EdgeInsets.only(top: 140.0),
child: RaisedButton(
textColor: Colors.white,
color: Colors.grey,
shape: RoundedRectangleBorder(
borderRadius: new BorderRadius.circular(18.0),
),
child: Text("Sign Up",
textAlign: TextAlign.center,
style: TextStyle(
fontSize: 20.0,
),
),
),
),
],
),
Container(
margin: const EdgeInsets.only(bottom: 0.0, right: 0.0),
child: Align(
alignment: Alignment.bottomRight,
child: Transform.rotate(
angle: pi,
child: Container(
decoration: ShapeDecoration(
gradient:LinearGradient(
begin: Alignment.bottomLeft,
end: Alignment.topRight,
colors: [Colors.yellow,Colors.yellow,Colors.orangeAccent,Colors.deepOrange,]
),
//color: Colors.deepOrangeAccent,
shape: CustomShapeBorder(),
),
),
),
),
),
],
),
);
}
}
class CustomShapeBorder extends ShapeBorder {
final double distanceFromWall = 12;
final double controlPointDistanceFromWall = 5;
#override
// TODO: implement dimensions
EdgeInsetsGeometry get dimensions => null;
#override
Path getInnerPath(Rect rect, {TextDirection textDirection}) {
// TODO: implement getInnerPath
return null;
}
#override
Path getOuterPath(Rect rect, {TextDirection textDirection}) {
// TODO: implement getOuterPath
return getClip(Size(260.0,180.0));
}
#override
void paint(Canvas canvas, Rect rect, {TextDirection textDirection}) {
// TODO: implement paint
}
#override
ShapeBorder scale(double t) {
// TODO: implement scale
return null;
}
Path getClip(Size size) {
Path clippedPath = new Path();
clippedPath.lineTo(0, size.height);
clippedPath.quadraticBezierTo(30, size.height + 10, size.width * 0.20, size.height - 50);
clippedPath.quadraticBezierTo(70, size.height - 120, size.width * 0.40, size.height * 0.35);
clippedPath.quadraticBezierTo(180, (size.height - (size.height* 0.6)), size.width - 40 , 32 );
clippedPath.quadraticBezierTo(250, 0, size.width, 0);
clippedPath.lineTo(size.width, 0);
clippedPath.close();
return clippedPath;
}
}
Refer to below image for Portrait Mode
Refer to below image for Landscape Mode (Where error occurs):

Answer 1

The problem is that you are using hardcode margins in a Column widget, that will give you problems in small devices too. You can fix that changing you Column Widget for a ListView Widget, but that is going to give you a Scroll Effect, I think you don't want that. So you can refactor that Column using Expanded Widget and a Stack can help in the first part of the Column, try the next:
Column(
children: <Widget>[
Expanded(
flex: 1,
child: Container(
padding: EdgeInsets.symmetric(horizontal: 50),
child: Stack(
children: <Widget>[
Center(
child: Text(
"SET, MATCH AND CHALLENGE",
style: TextStyle(
fontSize: 40.0,
),
),
),
Align(
alignment: Alignment.bottomCenter,
child: Text(
"A simple, fun, and a creative way to "
"set the bespoke challenges with "
"either a friend or a group of "
"friends anywhere in the world",
textAlign: TextAlign.justify,
style: TextStyle(
color: Colors.white
),
),
)
],
),
),
),
Expanded(
flex: 1,
child: Center(
child: Container(
width: 300.0,
height: 60.0,
child: RaisedButton(
textColor: Colors.white,
color: Colors.grey,
shape: RoundedRectangleBorder(
borderRadius: new BorderRadius.circular(18.0),
),
child: Text("Sign Up",
textAlign: TextAlign.center,
style: TextStyle(
fontSize: 20.0,
),
),
),
),
),
)
],
)