The relevant error-causing widget was:
Column file:///F:/App/Market/1.7/flutter_application/lib/src/pages/cart.dart:71:21
The overflowing RenderFlex has an orientation of Axis.vertical.
The edge of the RenderFlex that is overflowing has been marked in the rendering with a yellow and black striped pattern. This is usually caused by the contents being too big for the RenderFlex.
Consider applying a flex factor (e.g. using an Expanded widget) to force the children of the RenderFlex to fit within the available space instead of being sized to their natural size.
This is considered an error condition because it indicates that there is content that cannot be seen. If the content is legitimately bigger than the available space, consider clipping it with a ClipRect widget before putting it in the flex, or using a scrollable container rather than a Flex, like a ListView.
The specific RenderFlex in question is: RenderFlex#22d62 relayoutBoundary=up3 OVERFLOWING
... needs compositing
... parentData: not positioned; offset=Offset(0.0, 0.0) (can use size)
... constraints: BoxConstraints(0.0<=w<=411.4, 0.0<=h<=403.4)
... size: Size(411.4, 403.4)
... direction: vertical
... mainAxisAlignment: start
... mainAxisSize: max
... crossAxisAlignment: center
... verticalDirection: down
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body: RefreshIndicator(
onRefresh: _con.refreshCarts,
child: _con.carts.isEmpty
? EmptyCartWidget()
: Stack(
alignment: AlignmentDirectional.bottomCenter,
children: [
Column(
children: <Widget>[
Padding(
padding: const EdgeInsets.only(left: 20, right: 10),
child: ListTile(
contentPadding: EdgeInsets.symmetric(vertical: 0),
leading: Icon(
Icons.shopping_cart,
color: Theme.of(context).hintColor,
),
title: Text(
S.of(context).shopping_cart,
maxLines: 1,
overflow: TextOverflow.ellipsis,
style: Theme.of(context).textTheme.headline4,
),
subtitle: Text(
S
.of(context)
.verify_your_quantity_and_click_checkout,
maxLines: 1,
overflow: TextOverflow.ellipsis,
style: Theme.of(context).textTheme.caption,
),
),
),
ListView.separated(
padding: EdgeInsets.symmetric(vertical: 15),
scrollDirection: Axis.vertical,
shrinkWrap: true,
primary: true,
itemCount: _con.carts.length,
separatorBuilder: (context, index) {
return SizedBox(height: 15);
},
itemBuilder: (context, index) {
return CartItemWidget(
cart: _con.carts.elementAt(index),
heroTag: 'cart',
increment: () {
_con.incrementQuantity(
_con.carts.elementAt(index));
},
decrement: () {
_con.decrementQuantity(
_con.carts.elementAt(index));
},
onDismissed: () {
_con.removeFromCart(
_con.carts.elementAt(index));
},
);
},
),
],
),
Container(
padding: const EdgeInsets.all(18),
margin: EdgeInsets.only(bottom: 15),
decoration: BoxDecoration(
color: Theme.of(context).primaryColor,
borderRadius: BorderRadius.all(Radius.circular(20)),
boxShadow: [
BoxShadow(
color: Theme.of(context)
.focusColor
.withOpacity(0.15),
offset: Offset(0, 2),
blurRadius: 5.0)
]),
child: TextField(
keyboardType: TextInputType.text,
onSubmitted: (String value) {
_con.doApplyCoupon(value);
},
cursorColor: Theme.of(context).accentColor,
controller: TextEditingController()
..text = coupon?.code ?? '',
decoration: InputDecoration(
contentPadding: EdgeInsets.symmetric(
horizontal: 20, vertical: 15),
floatingLabelBehavior: FloatingLabelBehavior.always,
hintStyle: Theme.of(context).textTheme.bodyText1,
suffixText: coupon?.valid == null
? ''
: (coupon.valid
? S.of(context).validCouponCode
: S.of(context).invalidCouponCode),
suffixStyle: Theme.of(context)
.textTheme
.caption
.merge(
TextStyle(color: _con.getCouponIconColor())),
suffixIcon: Padding(
padding: const EdgeInsets.symmetric(horizontal: 15),
child: Icon(
Icons.confirmation_number,
color: _con.getCouponIconColor(),
size: 28,
),
),
hintText: S.of(context).haveCouponCode,
border: OutlineInputBorder(
borderRadius: BorderRadius.circular(30),
borderSide: BorderSide(
color: Theme.of(context)
.focusColor
.withOpacity(0.2))),
focusedBorder: OutlineInputBorder(
borderRadius: BorderRadius.circular(30),
borderSide: BorderSide(
color: Theme.of(context)
.focusColor
.withOpacity(0.5))),
enabledBorder: OutlineInputBorder(
borderRadius: BorderRadius.circular(30),
borderSide: BorderSide(
color: Theme.of(context)
.focusColor
.withOpacity(0.2))),
),
),
),
],
),
),
答案 0 :(得分：0)
用这样的Expanded小部件包装您的专栏儿童。
Column(
children: <Widget>[
Expanded(
child :
Padding(
padding: const EdgeInsets.only(left: 20, right: 10),
child: ListTile(
contentPadding: EdgeInsets.symmetric(vertical: 0),
leading: Icon(
Icons.shopping_cart,
color: Theme.of(context).hintColor,
),
title: Text(
S.of(context).shopping_cart,
maxLines: 1,
overflow: TextOverflow.ellipsis,
style: Theme.of(context).textTheme.headline4,
),
subtitle: Text(
S
.of(context)
.verify_your_quantity_and_click_checkout,
maxLines: 1,
overflow: TextOverflow.ellipsis,
style: Theme.of(context).textTheme.caption,
),
),
)),
Expanded(
child :
ListView.separated(
padding: EdgeInsets.symmetric(vertical: 15),
scrollDirection: Axis.vertical,
shrinkWrap: true,
primary: true,
itemCount: _con.carts.length,
separatorBuilder: (context, index) {
return SizedBox(height: 15);
},
itemBuilder: (context, index) {
return CartItemWidget(
cart: _con.carts.elementAt(index),
heroTag: 'cart',
increment: () {
_con.incrementQuantity(
_con.carts.elementAt(index));
},
decrement: () {
_con.decrementQuantity(
_con.carts.elementAt(index));
},
onDismissed: () {
_con.removeFromCart(
_con.carts.elementAt(index));
},
);
},
)),
],
)
答案 1 :(得分：0)
enter image description here 该问题已解决，但出现了另一个问题 我无法再按空白空间
