由于该应用在模拟器 Pixel 3 XL 上运行良好,但在屏幕分辨率为 1080.0 X 2256.0 的真实设备(例如 三星 - SM-G991B 和屏幕分辨率 1080.0 X 2256.0
正如你所看到的,所有的图像都是重叠的,文字看起来不太好,也许我在代码上做错了..
我如何管理不同设备上的响应能力?
@override
Widget build(BuildContext context) {
return Scaffold(
body: Container(
child: ListView(
physics: PageScrollPhysics(),
children: [
Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Padding(
padding: const EdgeInsets.symmetric(
horizontal: kDefaultPadding, vertical: kDefaultPadding),
child: Text('Меню', style: kStyleHeaders),
),
SizedBox(
height: 10.0,
),
Builder(builder: (_) {
if (_isLoading) {
return Padding(
padding: EdgeInsets.symmetric(vertical: 200.0),
child: Center(child: null),
);
}
if (_apiResponse.error) {
return Center(child: Text(_apiResponse.errorMessage));
}
if (_apiResponse.data.length == 0) {
return Padding(
padding: EdgeInsets.symmetric(vertical: 200.0),
child: Center(
child: Text(
'No products has been found..!',
style: TextStyle(
fontSize: 16.0,
fontWeight: FontWeight.bold,
fontFamily: 'BuffetBold',
color: Colors.black,
),
),
),
);
}
return GridView.builder(
shrinkWrap: true,
physics: ClampingScrollPhysics(),
itemCount: _apiResponse.data.length,
gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
crossAxisCount: 2,
childAspectRatio: 0.72,
mainAxisSpacing: 1.0,
crossAxisSpacing: 1.0,
),
itemBuilder: (context, index) {
var product = _apiResponse.data[index];
return CachedNetworkImage(
imageUrl: product.imageMedium,
imageBuilder: (context, imageProvider) => Column(
children: [
GestureDetector(
onTap: () => Navigator.push(
context,
MaterialPageRoute(
builder: (context) => ProductDetail(
id: product.id,
title: product.title,
description: product.description,
structure: product.structure,
imageLarge: product.imageLarge,
weight: product.weight,
hasDiscount: product.hasDiscount,
priceBefore:
double.parse(product.priceBefore),
priceAfter:
double.parse(product.priceAfter),
isHit: product.isHit,
isNew: product.isNew,
isSpicy: product.isSpicy,
isRecommended: product.isRecommended,
isVegetarian: product.isVegetarian,
attributes: product.attributes),
),
),
child: Container(
alignment: Alignment(-1, 0.9),
child: (product.isNew == '1')
? Image.asset(
'assets/images/new.png',
width: 60.0,
)
: null,
height: 165.0,
width: 165.0,
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(10.0),
image: DecorationImage(
image: imageProvider,
fit: BoxFit.cover,
),
boxShadow: [
BoxShadow(
color: Colors.grey,
blurRadius: 2.0,
spreadRadius: 0,
offset: Offset(0, 2))
],
),
),
),
Padding(
padding: EdgeInsets.symmetric(
vertical: 10.0, horizontal: 10.0),
child: Row(
children: [
Flexible(
child: Text(product.title,
style: kStyleTitle))
],
),
),
Container(
margin: EdgeInsets.symmetric(horizontal: 10.0),
child: Row(
mainAxisAlignment:
MainAxisAlignment.spaceBetween,
children: [
Text(
product.weight != null
? product.weight
: '',
style: kStyleWeight),
Text(
product.hasDiscount != '0'
? product.priceBefore
: '',
style: kStyleDiscount),
Container(
margin: EdgeInsets.symmetric(
horizontal: 3, vertical: 0),
height: 30.0,
width: 70.0,
child: FlatButton(
shape: RoundedRectangleBorder(
borderRadius:
BorderRadius.circular(20.0),
),
color: kPrimaryColor,
textColor: Colors.white,
padding:
EdgeInsets.symmetric(horizontal: 5.0),
onPressed: () {
// ... Todo
context.read<OrderNotify>().addOrder(
CartOrder(
productId: product.id,
product: product,
qty: 1,
price: hasDiscount(product)),
);
},
child: Row(
mainAxisAlignment:
MainAxisAlignment.center,
children: [
Text(hasDiscount(product),
style: kStylePrice),
Icon(
FontAwesomeIcons.rubleSign,
size: 13.0,
color: Colors.white,
)
],
),
),
),
],
),
),
],
),
placeholder: (context, url) => Center(
child: CircularProgressIndicator(
valueColor:
AlwaysStoppedAnimation(Color(0xffB81F33)),
),
),
errorWidget: (context, url, error) => Icon(
Icons.error,
size: 40.0,
color: Theme.of(context).primaryColor,
),
);
},
);
}),
],
),
],
),
),
);
}
答案 0 :(得分:0)
在您的第一个容器上,您没有渲染大小,请尝试为您的第一个容器指定一个大小,而不是无穷大和 maxFinite 大小。