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flutter - 如何使该页面在所有屏幕上响应?

转载 作者:行者123 更新时间:2023-12-03 03:52:05 28 4
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我正在为波兰观众编写一个非常简单的优惠券应用。问题是我不知道如何使此页面响应。在较小的屏幕上,我的页面如下所示:
图片1:较小的屏幕
Image 1
图2:较小的屏幕
Image 2
图片1:大屏幕(我希望在所有设备上都具有这种外观)
Image 3
图片2:更大的屏幕
Image 4
有人知道我该怎么做吗?我想要一个响应文本,一个响应按钮,并且我希望其他所有东西在每台设备上看起来都一样。我该怎么做呢?

经典优惠券屏幕

import 'package:flutter/cupertino.dart';

class ClassicCouponScreenArguments {
final String imagePath;

ClassicCouponScreenArguments(this.imagePath);
}

class ClassicCouponScreen extends StatelessWidget {
@override
Widget build(BuildContext context) {
final ClassicCouponScreenArguments args = ModalRoute.of(context).settings.arguments;
return CupertinoPageScaffold(
child: SafeArea(
child: Padding(
padding: EdgeInsets.all(16.0),
child: Column(
crossAxisAlignment: CrossAxisAlignment.stretch,
children: <Widget>[
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: <Widget>[
Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
Text(
'DATA WYDANIA:',
style: TextStyle(color: CupertinoColors.black, fontWeight: FontWeight.bold, fontSize: 17.0),
),
Text(
'12/11/2019',
style: TextStyle(color: CupertinoColors.black, fontSize: 15.0),
)
],
),
Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
Text('UNIKALNY KOD:', style: TextStyle(color: CupertinoColors.black, fontWeight: FontWeight.bold, fontSize: 17.0)),
Text('A-78-IA-6', style: TextStyle(color: CupertinoColors.black, fontSize: 15.0))
],
)
],
),
SizedBox(height: 16.0),
Image.asset(args.imagePath),
SizedBox(height: 16.0),
Text.rich(
TextSpan(
style: TextStyle(fontSize: 15.0),
text:
'Kupon ten upoważnia do jednokrotnego odbioru produktu gratis przy kolejnym dowolnym zakupie z oferty klasycznej. Kupon ważny jest przez 7 dni od czasu jego wygenerowania i może być zrealizowany w dowolnej restauracji Makdolan\'s w Polsce z wyłączeniem restauracji znajdujących się na terenie Portu Lotniczego im. Fryderyka Chopina w Warszawie oraz Portu Lotniczego im. Lecha Wałęsy w Gdańsku. Szczegółowy regulamin ankiety „Opinia Gości" znajduje się na stronie',
children: <TextSpan>[
TextSpan(text: ' www.makdolan.pl ', style: TextStyle(color: CupertinoColors.systemYellow)),
TextSpan(text: 'w sekcji', style: TextStyle(color: CupertinoColors.black)),
TextSpan(text: ' Regulaminy', style: TextStyle(color: CupertinoColors.systemYellow, decoration: TextDecoration.underline))
]),
),
Spacer(),
Container(
height: 95.0,
child: CupertinoButton(
color: Color(0xFFF7C443),
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Text(
'DRUKUJ /',
style: TextStyle(fontSize: 25.0),
),
Text('ZAPISZ JAKO PDF', style: TextStyle(fontSize: 25.0))
],
),
onPressed: () {},
),
),
SizedBox(height: 16.0),
Container(
height: 95.0,
child: CupertinoButton(
color: Color(0xFFF7C443),
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Text(
'PRZEŚLIJ KUPON',
style: TextStyle(fontSize: 25.0),
),
Text('(WYSYŁKA W CIĄGU 24 GODZIN)', style: TextStyle(fontSize: 14.0))
],
),
onPressed: () {},
),
)
],
),
),
),
);
}
}

邮件优惠券屏幕
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:makdolan_flutter/core/makdolan.dart';

final double _sizedBox = 8.0;

class MailCouponScreenArguments {
final String imagePath;

MailCouponScreenArguments(this.imagePath);
}

class MailCouponScreen extends StatelessWidget {
@override
Widget build(BuildContext context) {
final MailCouponScreenArguments args = ModalRoute.of(context).settings.arguments;
return CupertinoPageScaffold(
child: SafeArea(
child: Padding(
padding: EdgeInsets.all(16.0),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Row(
children: [
GestureDetector(
onTap: () => Navigator.pop(context),
child: Icon(
Icons.arrow_back,
color: CupertinoColors.black,
),
),
],
),
Row(
children: [
Icon(
Icons.archive,
color: CupertinoColors.black,
),
SizedBox(width: _sizedBox),
Icon(
Icons.delete,
color: CupertinoColors.black,
),
SizedBox(width: _sizedBox),
Icon(Icons.mail, color: CupertinoColors.black),
SizedBox(width: _sizedBox),
Icon(
Icons.more_vert,
color: CupertinoColors.black,
)
],
)
],
),
SizedBox(height: _sizedBox),
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Row(
children: [
Text('Voucher', style: TextStyle(color: Colors.black, fontSize: 17.0)),
SizedBox(width: _sizedBox),
Container(
color: Colors.grey[300],
child: Padding(
padding: EdgeInsets.fromLTRB(4, 2, 4, 2),
child: Text('Odebrane', style: TextStyle(color: Colors.black, fontSize: 15.0)),
),
)
],
),
Icon(Icons.star_border, color: CupertinoColors.black),
],
),
SizedBox(height: _sizedBox),
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Row(
children: [
Container(
height: 45.0,
width: 45.0,
decoration: BoxDecoration(color: Colors.blue[200], shape: BoxShape.circle),
child: Center(
child: Text('M', style: TextStyle(color: CupertinoColors.white)),
)),
SizedBox(width: _sizedBox),
Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Row(
children: [
Text('Makdolan Poland', style: TextStyle(color: Colors.black, fontSize: 15.0)),
SizedBox(width: _sizedBox),
Text('Wczoraj', style: TextStyle(color: Colors.grey, fontSize: 15.0))
],
),
SizedBox(height: _sizedBox),
Row(
children: [
Text('do mnie', style: TextStyle(color: Colors.grey, fontSize: 15.0)),
Icon(Icons.expand_more, color: CupertinoColors.black)
],
)
],
)
],
),
Row(
children: [
Icon(
Icons.reply,
color: CupertinoColors.black,
),
SizedBox(width: _sizedBox),
Icon(
Icons.more_vert,
color: CupertinoColors.black,
)
],
)
],
),
SizedBox(height: _sizedBox),
Text(
'Dzień dobry,\nPrzesyłamy kupon w podziękowaniu za wzięcie udziału w ankiecie.',
style: TextStyle(color: Colors.grey, fontSize: 16.0),
),
SizedBox(height: _sizedBox),
Row(
children: [
Text('DATA WYDANIA:', style: TextStyle(color: Colors.black, fontSize: 16.0, fontWeight: FontWeight.bold)),
SizedBox(width: _sizedBox),
Text(Makdolan.date(), style: TextStyle(color: Colors.grey, fontSize: 16.0))
],
),
SizedBox(height: _sizedBox),
Row(
children: [
Text('UNIKALNY KOD:', style: TextStyle(color: Colors.black, fontSize: 16.0, fontWeight: FontWeight.bold)),
SizedBox(width: _sizedBox),
Text(Makdolan.uniqueCode(), style: TextStyle(color: Colors.grey, fontSize: 16.0)),
],
),
SizedBox(height: _sizedBox),
Image.asset(args.imagePath),
SizedBox(height: _sizedBox),
Text.rich(
TextSpan(
text:
'Kupon ten upoważnia do jednokrotnego odbioru produktu gratis przy kolejnym dowolnym zakupie z oferty klasycznej. Kupon ważny jest przez 7 dni od czasu jego wygenerowania i może być zrealizowany w dowolnej restauracji Makdolan\'s w Polsce z wyłączeniem restauracji znajdujących się na terenie Portu Lotniczego im. Fryderyka Chopina w Warszawie oraz Portu Lotniczego im. Lecha Wałęsy w Gdańsku. Szczegółowy regulamin ankiety „Opinia Gości" znajduje się na stronie',
style: TextStyle(color: Colors.black),
children: <TextSpan>[
TextSpan(text: ' www.makdolan.pl ', style: TextStyle(color: Colors.amber, decoration: TextDecoration.underline)),
TextSpan(text: 'w sekcji', style: TextStyle(color: Colors.black)),
TextSpan(text: ' Regulaminy', style: TextStyle(color: Colors.amber, decoration: TextDecoration.underline))
],
),
style: TextStyle(fontSize: 9.0),
),
Spacer(),
Text('Dziękujemy za wzięcie udziału w badaniu!', style: TextStyle(color: Colors.grey, fontSize: 13.0)),
SizedBox(height: _sizedBox),
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Container(
height: 100.0,
width: 110.0,
decoration: BoxDecoration(
border: Border.all(width: 3.0, color: Colors.grey),
borderRadius: BorderRadius.all(Radius.circular(10.0)),
),
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Icon(
Icons.reply,
color: CupertinoColors.black,
),
Text('Odpowiedz', style: TextStyle(color: Colors.grey, fontSize: 15.5))
],
),
),
Container(
height: 100.0,
width: 110.0,
decoration: BoxDecoration(border: Border.all(width: 3.0, color: Colors.grey), borderRadius: BorderRadius.all(Radius.circular(10.0))),
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Icon(
Icons.reply_all,
color: CupertinoColors.black,
),
Text('Odpowiedz', style: TextStyle(color: Colors.grey, fontSize: 16.0)),
Text('wszystkim', style: TextStyle(color: Colors.grey, fontSize: 16.0))
],
),
),
Container(
height: 100.0,
width: 110.0,
decoration: BoxDecoration(border: Border.all(width: 3.0, color: Colors.grey), borderRadius: BorderRadius.all(Radius.circular(10.0))),
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Icon(
Icons.forward,
color: CupertinoColors.black,
),
Text('Przekaż dalej', style: TextStyle(color: Colors.grey, fontSize: 16.0))
],
),
),
],
)
],
),
)),
);
}
}

最佳答案

现在,可以通过多种方式使Flutter应用程序具有响应能力。
您可以使用MediaQuery()参数,这是一种简单的方法,您可以获取设备的宽度和高度,并可以使用它来调整窗口小部件的大小。
范例:

Widget build(BuildContext context) {
var size = MediaQuery.of(context).size;
return Scaffold(
body:Container() ); }
现在您可以使用
size.height to get device height and size.width to get device width

SizedBox(
width: size.width * .6,
child: BeautifulRoundedButton(
text: "Start Reading",
fontSize: 20,
press: (){

},
),
),
“上方”按钮的大小将根据屏幕的宽度而定,将占总宽度的0.6%。同样的高度
 SizedBox(
height: size.height * .4,

),
对此的引用是: Flutter Dev Guide
这很简单,还有其他方法,对他们来说
现在,我发现的其他非常出色的文章是:
Article 1 Article 2

关于flutter - 如何使该页面在所有屏幕上响应?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/62765641/

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