我对列有问题,在列中我有3个容器。第一个里面有图片,另外两个里面有文字。对于第一个容器,我想应用例如100的高度。但最大我能申请的是60,然后它给底部溢出。我正在使用Grid.count进行网格视图并使用List.genarate列出它们。 PS:包装后会扩展,从而影响第一个容器的高度,并且容器没有固定的高度 这是我的代码:
Column(
mainAxisSize: MainAxisSize.max,
crossAxisAlignment: CrossAxisAlignment.center,
children: <Widget>[
Container(
height: 90,
decoration: BoxDecoration(
color: Theme.of(context).primaryColor,
borderRadius: BorderRadius.all(Radius.circular(10)),
boxShadow: [
BoxShadow(
color: Theme.of(context).focusColor.withOpacity(0.9),
blurRadius: 4,
offset: Offset(0, 2)),
],
),
width: 90,
child: Hero(
tag: widget.heroTag + widget.product.id,
child: Padding(
padding: const EdgeInsets.all(6.0),
child: CachedNetworkImage(
height: 90,
fit: BoxFit.fill,
imageUrl: this.widget.product.imageUrl,
placeholder: (context, url) => Image.asset(
'assets/img/loading.gif',
fit: BoxFit.cover,
height: 150,
),
errorWidget: (context, url, error) => Icon(Icons.error),
),
),
),
),
Center(
child: Container(
width: 90,
child: Text(
widget.product.name,
textAlign: TextAlign.center,
style: TextStyle(fontSize: 11, fontWeight: FontWeight.bold),
overflow: TextOverflow.ellipsis,
maxLines: 2,
),
),
),
Center(
child: Container(
child: Text(
" ${widget.product.salePrice.toString()} Ft ",
style: TextStyle(
color: Colors.blue[800],
fontSize: 13,
fontWeight: FontWeight.bold),
overflow: TextOverflow.ellipsis,
),
),
)
],
),
在这里,我用grid.count和list.genearte列出它们:
GridView.count(
scrollDirection: Axis.vertical,
shrinkWrap: true,
primary: false,
mainAxisSpacing: 15.0,
// crossAxisSpacing: 4.0,
padding: EdgeInsets.symmetric(
vertical: 15),
crossAxisCount:
MediaQuery.of(context)
.orientation ==
Orientation.portrait
? 3
: 3,
children: List.generate(
_con.subCategories
.elementAt(0)
.products
.length, (index) {
return ProductGridItemWidget(
heroTag: 'product-grid' +
0.toString() +
index.toString(),
product: _con.subCategories
.elementAt(0)
.products
.elementAt(index),
onPressed: () {
{
_con.addToCart(_con
.subCategories
.elementAt(0)
.products
.elementAt(index));
}
});
}),
)),
答案 0 :(得分:1)
此帖子的最终解决方案 Give a height to the child of GridView
只需在GridView.count内编写此行代码
childAspectRatio: MediaQuery.of(context).size.width /
(MediaQuery.of(context).size.height / 4),