昨天我执行了import 'package:flutter/material.dart';
import 'package:flutter_app/circle/firstCircle.dart';
import 'package:flutter_app/circle/secondCircle.dart';
import 'package:flutter_app/circle/thirdCircle.dart';
import 'package:flutter_app/circle/fourthCircle.dart';
import 'package:flutter_app/circle/fifthCircle.dart';
import 'package:flutter/services.dart';
void main(){
runApp(new MaterialApp(home: new MyApp()));
}
class MyApp extends StatefulWidget{
MyAppState createState() => new MyAppState();
}
class MyAppState extends State<MyApp> {
@override
Widget build(BuildContext context) {
SystemChrome.setPreferredOrientations([
DeviceOrientation.landscapeLeft,
DeviceOrientation.landscapeRight,
]);
double width = MediaQuery.of(context).size.width;
double height = MediaQuery.of(context).size.height;
print('Hieght is $height and width is $width');
return new Container(
child: Material(
color: Colors.white,
child: new Center(
child: new Stack(
children: <Widget>[
new Container(
margin: EdgeInsets.all(130.0),
decoration: new BoxDecoration(
color: Colors.orange,
shape: BoxShape.circle,
),
),
//First Circle
new Positioned(
//alignment: AlignmentDirectional(0.0, -0.9),
// top: height/25,
// left: width/2 - 80,
//alignment: Alignment(0,-1.5),
child: new GestureDetector(
child: Container(
//margin: EdgeInsets.only(left: 1.0,right: 1.0),
// alignment: AlignmentDirectional(0, 0),
width: width/9,
height: width/9,
//child: Image.asset('assets/one.png'),
decoration: BoxDecoration(
shape: BoxShape.circle,
image: DecorationImage(image: AssetImage('assets/one.png'),),
),
),
onTap: () => Navigator.push(context, MaterialPageRoute(builder: (context) => FirstCircle(),)),
),
top: 30,
right: 1.0,
left: 1.0,
),
//Second Circle
new Positioned(
//alignment: AlignmentDirectional(-0.57, -0.35),
child: new GestureDetector(
child: Container(
width: width/9,
height: width/9,
// margin: EdgeInsets.only(right: width/2),
//child: Image.asset('assets/two.png'),
decoration: BoxDecoration(
shape: BoxShape.circle,
image: DecorationImage(image: AssetImage('assets/two.png'),),
),
),
onTap: () => Navigator.push(context, MaterialPageRoute(builder: (context) => SecondCircle(),)),
),
top: height/3,
right: rightSize(),
left: 1.0,
),
//Third Circle
new Positioned(
//alignment: AlignmentDirectional(0.57, -0.35),
child: new GestureDetector(
child: Container(
width: width/9,
height: width/9,
// margin: EdgeInsets.only(left: width/2),
//child: Image.asset('assets/three.png'),
decoration: BoxDecoration(
shape: BoxShape.circle,
image: DecorationImage(image: AssetImage('assets/three.png'),),
),
),
onTap: () => Navigator.push(context, MaterialPageRoute(builder: (context) => ThirdCircle(),)),
),
top: height/3,
left: leftSize(),
right: 1.0,
),
//Fourth Circle
new Positioned(
// alignment: AlignmentDirectional(-0.35, 0.75),
child: new GestureDetector(
child: Container(
width: width/9,
height: width/9,
//child: Image.asset('assets/four.png'),
decoration: BoxDecoration(
shape: BoxShape.circle,
image: DecorationImage(image: AssetImage('assets/four.png'),),
),
),
onTap: () => Navigator.push(context, MaterialPageRoute(builder: (context) => FourthCircle(),)),
),
bottom: bottomSize(),
right: 1.0,
left: 1.0 - width/4,
),
//Fifth Circle
new Positioned(
// alignment: AlignmentDirectional(0.35, 0.75),
child: new GestureDetector(
child: Container(
width: width/9,
height: width/9 ,
//child: Image.asset('assets/five.png'),
decoration: BoxDecoration(
shape: BoxShape.circle,
image: DecorationImage(image: AssetImage('assets/five.png'),),
),
),
onTap: () => Navigator.push(context, MaterialPageRoute(builder: (context) => FifthCircle(),)),
),
bottom: bottomSize(),
right: 1.0 - width/4,
left: 1.0,
),
],
),
),
),
);
}
rightSize(){
double width = MediaQuery.of(context).size.width;
double height = MediaQuery.of(context).size.height;
double rightSize;
if(width > 1300){
rightSize = width/2 + 100;
}
else if(width >= 1280) {
rightSize = width/2 - 80;
}
else if(width == 1024){
if(height == 552){
rightSize = width/3;
}
else{
//rightSize = width/2;
rightSize = width/2;
}
}
else if(width >= 960)
{
rightSize = width/2.8;
}
return rightSize;
}
leftSize(){
double width = MediaQuery.of(context).size.width;
double height = MediaQuery.of(context).size.height;
double leftSize;
if(width > 1300){
leftSize = width/2 + 100;
}
else if(width >= 1280){
leftSize = width/2 - 80;
}
else if(width >= 1024){
if(height >= 552){
leftSize = width/3;
}
else{
leftSize = width/2;
}
}
else if(width >= 960){
leftSize = width/2.8;
}
return leftSize;
}
bottomSize(){
double bottomSize;
double width = MediaQuery.of(context).size.width;
double height = MediaQuery.of(context).size.height;
if(height >= 552){
bottomSize = height/7;
}
else{
bottomSize = height/10;
}
return bottomSize;
}
}
，我注意到以下代码突然被忽略了：
composer update更新前的操作：
这两个东西在更新后都刚刚停止工作。页眉和页脚显示在第一页上。
看来@page :first {
margin: 0px 60px !important;
display:none !important;
border:none;
}
部分以某种方式被忽略了。没有任何覆盖它，并且我没有更改任何其他代码。
在通过 DOMPDF 创建PDF时会发生这种情况。
我想念什么吗？