很简单的问题,但我找不到答案。
我有一个Flutter的布局结构,如下所示:
Inkwell
Card
ScopedModelDescendant
Column
Container[]
列中的容器数量是可变的。
目标是它应该是这样的:
但相反,它最终会这样做:
我能够通过在SingleChildScrollView
和ScopedModelDescendant
之间放置一个Column
来创造“理想”的外观,但当然这不是我想要的,因为我不想让它滚动。
我已经尝试将clipBehavior
属性添加到Card
,我尝试在ClipRects
混合结构中的任何地方,但似乎没有任何效果。我最好的猜测是,ClipRect
上方的Column
没有帮助,因为溢出发生在列内。
这是我得到的错误:
flutter: ══╡ EXCEPTION CAUGHT BY RENDERING LIBRARY ╞═════════════════════════════════════════════════════════
flutter: The following message was thrown during layout:
flutter: A RenderFlex overflowed by 15 pixels on the bottom.
flutter:
flutter: The overflowing RenderFlex has an orientation of Axis.vertical.
flutter: The edge of the RenderFlex that is overflowing has been marked in the rendering with a yellow and
flutter: black striped pattern. This is usually caused by the contents being too big for the RenderFlex.
flutter: Consider applying a flex factor (e.g. using an Expanded widget) to force the children of the
flutter: RenderFlex to fit within the available space instead of being sized to their natural size.
flutter: This is considered an error condition because it indicates that there is content that cannot be
flutter: seen. If the content is legitimately bigger than the available space, consider clipping it with a
flutter: ClipRect widget before putting it in the flex, or using a scrollable container rather than a Flex,
flutter: like a ListView.
flutter: The specific RenderFlex in question is:
flutter: RenderFlex#094c9 OVERFLOWING
flutter: creator: Column ← ScopedModelDescendant<EventModel> ← Semantics ← DefaultTextStyle ←
flutter: AnimatedDefaultTextStyle ← _InkFeatures-[GlobalKey#5fe8b ink renderer] ←
flutter: NotificationListener<LayoutChangedNotification> ← CustomPaint ← _ShapeBorderPaint ← PhysicalShape
flutter: ← _MaterialInterior ← Material ← ⋯
flutter: parentData: <none> (can use size)
flutter: constraints: BoxConstraints(w=56.0, h=104.3)
flutter: size: Size(56.0, 104.3)
flutter: direction: vertical
flutter: mainAxisAlignment: start
flutter: mainAxisSize: max
flutter: crossAxisAlignment: stretch
flutter: verticalDirection: down
flutter: ◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤
flutter: ════════════════════════════════════════════════════════════════════════════════════════════════════
谢谢您的帮助。
Wrap小部件解决了您的问题。
这是一个简单的例子:
class WrapExample extends StatelessWidget {
@override
Widget build(BuildContext context) {
return SizedBox(
width: 200,
height: 180,
child: Card(
child: Wrap(
direction: Axis.horizontal,
spacing: 8.0, // gap between adjacent chips
runSpacing: 4.0, // gap between lines
children: <Widget>[
Chip(
avatar: CircleAvatar(
backgroundColor: Colors.blue.shade900, child: Text('AH')),
label: Text('Hamilton'),
),
Chip(
avatar: CircleAvatar(
backgroundColor: Colors.blue.shade900, child: Text('ML')),
label: Text('Lafayette'),
),
Chip(
avatar: CircleAvatar(
backgroundColor: Colors.blue.shade900, child: Text('HM')),
label: Text('Mulligan'),
),
Chip(
avatar: CircleAvatar(
backgroundColor: Colors.blue.shade900, child: Text('JL')),
label: Text('Laurens'),
),
],
),
),
);
}
}
这是输出: