我想在我的应用程序中显示一个数据表。在这里，对于连续的每个项目，我要针对该项目显示多个价格。我正在使用flutter datatable小部件。我在该行的数据单元格内使用listviewbuilder来显示多个价格。但是，它不起作用。有可能这样做吗？
DataTable(
columns: <DataColumn>[
DataColumn(
label: Text(
"item",
style: TextStyle(
fontSize: 15,
color: Colors.red,
),
),
),
DataColumn(
label: Text(
"price",
style: TextStyle(
fontSize: 15,
color: Colors.red,
),
),
),
],
rows: complaintData
.map(
(element) => DataRow(
cells: [
DataCell(
Text(element.item),
),
DataCell(
ListView.builder(
physics: ClampingScrollPhysics(),
shrinkWrap: true,
itemCount: element.price.length,
itemBuilder: (context, i) {
return Text(element.price[i].name);
},),
),
),
],
),
)
.toList(),
)
这是我面临的错误
flutter: The following assertion was thrown during performLayout():
flutter: RenderShrinkWrappingViewport does not support returning intrinsic dimensions.
flutter: Calculating the intrinsic dimensions would require instantiating every child of the viewport, which
flutter: defeats the point of viewports being lazy.
flutter: If you are merely trying to shrink-wrap the viewport in the main axis direction, you should be able
flutter: to achieve that effect by just giving the viewport loose constraints, without needing to measure its
flutter: intrinsic dimensions.
flutter:
flutter: User-created ancestor of the error-causing widget was:
flutter: DataTable
flutter: file:///Users/juthisarker/Documents/Source%20Code/untitled%20folder/hcmob/lib/screens/profile/complaint/ComplaintListScreen.dart:256:24
flutter:
flutter: When the exception was thrown, this was the stack:
flutter: #0 RenderShrinkWrappingViewport.debugThrowIfNotCheckingIntrinsics.<anonymous closure>
flutter: #1 RenderShrinkWrappingViewport.debugThrowIfNotCheckingIntrinsics
flutter: #2 RenderViewportBase.computeMaxIntrinsicWidth
flutter: #3 RenderBox._computeIntrinsicDimension.<anonymous closure>
flutter: #4 _LinkedHashMapMixin.putIfAbsent (dart:collection-patch/compact_hash.dart:291:23)
flutter: #5 RenderBox._computeIntrinsicDimension
flutter: #6 RenderBox.getMaxIntrinsicWidth
flutter: #7 RenderProxyBoxMixin.computeMaxIntrinsicWidth
flutter: #8 RenderBox._computeIntrinsicDimension.<anonymous closure>
flutter: #9 _LinkedHashMapMixin.putIfAbsent (dart:collection-patch/compact_hash.dart:291:23)
flutter: #10 RenderBox._computeIntrinsicDimension
flutter: #11 RenderBox.getMaxIntrinsicWidth
flutter: #12 RenderProxyBoxMixin.computeMaxIntrinsicWidth
flutter: #13 RenderBox._computeIntrinsicDimension.<anonymous closure>
flutter: #14 _LinkedHashMapMixin.putIfAbsent (dart:collection-patch/compact_hash.dart:291:23)
flutter: #15 RenderBox._computeIntrinsicDimension
flutter: #16 RenderBox.getMaxIntrinsicWidth
flutter: #17 RenderProxyBoxMixin.computeMaxIntrinsicWidth
flutter: #18 RenderBox._computeIntrinsicDimension.<anonymous closure>
flutter: #19 _LinkedHashMapMixin.putIfAbsent (dart:collection-patch/compact_hash.dart:291:23)
flutter: #20 RenderBox._computeIntrinsicDimension
flutter: #21 RenderBox.getMaxIntrinsicWidth
flutter: #22 RenderProxyBoxMixin.computeMaxIntrinsicWidth
flutter: #23 RenderBox._computeIntrinsicDimension.<anonymous closure>
flutter: #24 _LinkedHashMapMixin.putIfAbsent (dart:collection-patch/compact_hash.dart:291:23)
flutter: #25 RenderBox._computeIntrinsicDimension
flutter: #26 RenderBox.getMaxIntrinsicWidth
flutter: #27 RenderProxyBoxMixin.computeMaxIntrinsicWidth
flutter: #28 RenderBox._computeIntrinsicDimension.<anonymous closure>
flutter: #29 _LinkedHashMapMixin.putIfAbsent (dart:collection-patch/compact_hash.dart:291:23)
flutter: #30 RenderBox._computeIntrinsicDimension
flutter: #31 RenderBox.getMaxIntrinsicWidth
flutter: #32 RenderProxyBoxMixin.computeMaxIntrinsicWidth
flutter: #33 RenderBox._computeIntrinsicDimension.<anonymous closure>
flutter: #34 _LinkedHashMapMixin.putIfAbsent (dart:collection-patch/compact_hash.dart:291:23)
flutter: #35 RenderBox._computeIntrinsicDimension
flutter: #36 RenderBox.getMaxIntrinsicWidth
flutter: #37 RenderShiftedBox.computeMaxIntrinsicWidth
flutter: #38 RenderBox._computeIntrinsicDimension.<anonymous closure>
flutter: #39 _LinkedHashMapMixin.putIfAbsent (dart:collection-patch/compact_hash.dart:291:23)
flutter: #40 RenderBox._computeIntrinsicDimension
flutter: #41 RenderBox.getMaxIntrinsicWidth
flutter: #42 RenderPadding.computeMaxIntrinsicWidth
flutter: #43 RenderBox._computeIntrinsicDimension.<anonymous closure>
flutter: #44 _LinkedHashMapMixin.putIfAbsent (dart:collection-patch/compact_hash.dart:291:23)
flutter: #45 RenderBox._computeIntrinsicDimension
flutter: #46 RenderBox.getMaxIntrinsicWidth
flutter: #47 RenderProxyBoxMixin.computeMaxIntrinsicWidth
flutter: #48 RenderConstrainedBox.computeMaxIntrinsicWidth
flutter: #49 RenderBox._computeIntrinsicDimension.<anonymous closure>
flutter: #50 _LinkedHashMapMixin.putIfAbsent (dart:collection-patch/compact_hash.dart:291:23)
flutter: #51 RenderBox._computeIntrinsicDimension
flutter: #52 RenderBox.getMaxIntrinsicWidth
flutter: #53 RenderProxyBoxMixin.computeMaxIntrinsicWidth
flutter: #54 RenderBox._computeIntrinsicDimension.<anonymous closure>
flutter: #55 _LinkedHashMapMixin.putIfAbsent (dart:collection-patch/compact_hash.dart:291:23)
flutter: #56 RenderBox._computeIntrinsicDimension
flutter: #57 RenderBox.getMaxIntrinsicWidth
flutter: #58 RenderProxyBoxMixin.computeMaxIntrinsicWidth
flutter: #59 RenderBox._computeIntrinsicDimension.<anonymous closure>
flutter: #60 _LinkedHashMapMixin.putIfAbsent (dart:collection-patch/compact_hash.dart:291:23)
flutter: #61 RenderBox._computeIntrinsicDimension
flutter: #62 RenderBox.getMaxIntrinsicWidth
flutter: #63 RenderProxyBoxMixin.computeMaxIntrinsicWidth
flutter: #64 RenderBox._computeIntrinsicDimension.<anonymous closure>
flutter: #65 _LinkedHashMapMixin.putIfAbsent (dart:collection-patch/compact_hash.dart:291:23)
flutter: #66 RenderBox._computeIntrinsicDimension
flutter: #67 RenderBox.getMaxIntrinsicWidth
flutter: #68 IntrinsicColumnWidth.maxIntrinsicWidth
flutter: #69 RenderTable._computeColumnWidths
flutter: #70 RenderTable.performLayout
flutter: #71 RenderObject.layout
flutter: #72 RenderPadding.performLayout
flutter: #73 RenderObject.layout
flutter: #74 RenderPadding.performLayout
flutter: #75 RenderObject.layout
flutter: #76 RenderFlex.performLayout
flutter: #77 RenderObject.layout
flutter: #78 RenderPadding.performLayout
flutter: #79 RenderObject.layout
flutter: #80 _RenderSingleChildViewport.performLayout
flutter: #81 RenderObject.layout
flutter: #82 RenderProxyBoxMixin.performLayout
flutter: #83 RenderObject.layout
flutter: #84 RenderProxyBoxMixin.performLayout
flutter: #85 RenderObject.layout
flutter: #86 RenderProxyBoxMixin.performLayout
flutter: #87 RenderObject.layout
flutter: #88 RenderProxyBoxMixin.performLayout
flutter: #89 RenderObject.layout
flutter: #90 RenderProxyBoxMixin.performLayout
flutter: #91 RenderObject.layout
flutter: #92 RenderProxyBoxMixin.performLayout
flutter: #93 RenderObject.layout
flutter: #94 MultiChildLayoutDelegate.layoutChild
flutter: #95 _ScaffoldLayout.performLayout
flutter: #96 MultiChildLayoutDelegate._callPerformLayout
flutter: #97 RenderCustomMultiChildLayoutBox.performLayout
flutter: #98 RenderObject.layout
flutter: #99 RenderProxyBoxMixin.performLayout
flutter: #100 RenderObject.layout
flutter: #101 RenderProxyBoxMixin.performLayout
flutter: #102 _RenderCustomClip.performLayout
flutter: #103 RenderObject.layout
flutter: #104 RenderPadding.performLayout
flutter: #105 RenderObject.layout
flutter: #106 RenderProxyBoxMixin.performLayout
flutter: #107 RenderObject.layout
flutter: #108 RenderProxyBoxMixin.performLayout
flutter: #109 RenderObject.layout
flutter: #110 RenderProxyBoxMixin.performLayout
flutter: #111 RenderObject.layout
flutter: #112 RenderProxyBoxMixin.performLayout
flutter: #113 RenderObject.layout
flutter: #114 RenderProxyBoxMixin.performLayout
flutter: #115 RenderObject.layout
flutter: #116 RenderProxyBoxMixin.performLayout
flutter: #117 RenderObject.layout
flutter: #118 RenderProxyBoxMixin.performLayout
flutter: #119 RenderOffstage.performLayout
flutter: #120 RenderObject.layout
flutter: #121 RenderStack.performLayout
flutter: #122 RenderObject._layoutWithoutResize
flutter: #123 PipelineOwner.flushLayout
flutter: #124 RendererBinding.drawFrame
flutter: #125 WidgetsBinding.drawFrame
flutter: #126 RendererBinding._handlePersistentFrameCallback
flutter: #127 SchedulerBinding._invokeFrameCallback
flutter: #128 SchedulerBinding.handleDrawFrame
flutter: #129 SchedulerBinding._handleDrawFrame
flutter: #133 _invoke (dart:ui/hooks.dart:249:10)
flutter: #134 _drawFrame (dart:ui/hooks.dart:207:3)
flutter: (elided 3 frames from package dart:async)
flutter:
flutter: The following RenderObject was being processed when the exception was fired: RenderTable#bbe39 relayoutBoundary=up12 NEEDS-LAYOUT NEEDS-PAINT NEEDS-COMPOSITING-BITS-UPDATE:
flutter: creator: Table ← DataTable ← Padding ← Padding ← Container ← Column ← Padding ← Container ←
flutter: _SingleChildViewport ← IgnorePointer-[GlobalKey#f4e01] ← Semantics ← _PointerListener ← ⋯
flutter: parentData: offset=Offset(0.0, 0.0) (can use size)
flutter: constraints: BoxConstraints(0.0<=w<=378.0, 0.0<=h<=Infinity)
flutter: size: MISSING
flutter: specified column widths: {0: IntrinsicColumnWidth(flex: null), 1: IntrinsicColumnWidth(flex: null)}
flutter: default column width: FlexColumnWidth(1.0)
flutter: table size: 2×2
flutter: column offsets: unknown
flutter: row offsets: []
flutter: This RenderObject had the following descendants (showing up to depth 5):
flutter: child (0, 0): RenderMouseRegion#91c60 NEEDS-LAYOUT NEEDS-PAINT NEEDS-COMPOSITING-BITS-UPDATE
flutter: child: RenderSemanticsGestureHandler#010a4 NEEDS-LAYOUT NEEDS-PAINT NEEDS-COMPOSITING-BITS-UPDATE
flutter: child: RenderPointerListener#ad9b2 NEEDS-LAYOUT NEEDS-PAINT NEEDS-COMPOSITING-BITS-UPDATE
flutter: child: RenderConstrainedBox#1c7a0 NEEDS-LAYOUT NEEDS-PAINT NEEDS-COMPOSITING-BITS-UPDATE
flutter: child: RenderPadding#a8e58 NEEDS-LAYOUT NEEDS-PAINT NEEDS-COMPOSITING-BITS-UPDATE
flutter: child (1, 0): RenderMouseRegion#ae366 NEEDS-LAYOUT NEEDS-PAINT NEEDS-COMPOSITING-BITS-UPDATE
flutter: child: RenderSemanticsGestureHandler#7d648 NEEDS-LAYOUT NEEDS-PAINT NEEDS-COMPOSITING-BITS-UPDATE
flutter: child: RenderPointerListener#087a0 NEEDS-LAYOUT NEEDS-PAINT NEEDS-COMPOSITING-BITS-UPDATE
flutter: child: RenderConstrainedBox#6cd5f NEEDS-LAYOUT NEEDS-PAINT NEEDS-COMPOSITING-BITS-UPDATE
flutter: child: RenderPadding#34ea3 NEEDS-LAYOUT NEEDS-PAINT NEEDS-COMPOSITING-BITS-UPDATE
flutter: child (0, 1): RenderMouseRegion#5d58a NEEDS-LAYOUT NEEDS-PAINT NEEDS-COMPOSITING-BITS-UPDATE
flutter: child: RenderSemanticsGestureHandler#7166e NEEDS-LAYOUT NEEDS-PAINT NEEDS-COMPOSITING-BITS-UPDATE
flutter: child: RenderPointerListener#10dbf NEEDS-LAYOUT NEEDS-PAINT NEEDS-COMPOSITING-BITS-UPDATE
flutter: child: RenderConstrainedBox#242e9 NEEDS-LAYOUT NEEDS-PAINT NEEDS-COMPOSITING-BITS-UPDATE
flutter: child: RenderPadding#331d8 NEEDS-LAYOUT NEEDS-PAINT NEEDS-COMPOSITING-BITS-UPDATE
flutter: child (1, 1): RenderMouseRegion#b0d45 NEEDS-LAYOUT NEEDS-PAINT NEEDS-COMPOSITING-BITS-UPDATE
flutter: child: RenderSemanticsGestureHandler#59f08 NEEDS-LAYOUT NEEDS-PAINT NEEDS-COMPOSITING-BITS-UPDATE
flutter: child: RenderPointerListener#14521 NEEDS-LAYOUT NEEDS-PAINT NEEDS-COMPOSITING-BITS-UPDATE
flutter: child: RenderConstrainedBox#272b3 NEEDS-LAYOUT NEEDS-PAINT NEEDS-COMPOSITING-BITS-UPDATE
flutter: child: RenderPadding#2ae7a NEEDS-LAYOUT NEEDS-PAINT NEEDS-COMPOSITING-BITS-UPDATE
flutter: Another exception was thrown: RenderBox was not laid out: RenderTable#bbe39 relayoutBoundary=up12 NEEDS-PAINT NEEDS-COMPOSITING-BITS-UPDATE
flutter: Another exception was thrown: RenderBox was not laid out: RenderPadding#1a5c5 relayoutBoundary=up11 NEEDS-PAINT NEEDS-COMPOSITING-BITS-UPDATE
flutter: Another exception was thrown: RenderBox was not laid out: RenderPadding#5ac96 relayoutBoundary=up10 NEEDS-PAINT NEEDS-COMPOSITING-BITS-UPDATE
flutter: Another exception was thrown: RenderBox was not laid out: RenderFlex#f5a44 relayoutBoundary=up9 NEEDS-PAINT NEEDS-COMPOSITING-BITS-UPDATE
flutter: Another exception was thrown: RenderBox was not laid out: RenderPadding#b6a4c relayoutBoundary=up8 NEEDS-PAINT NEEDS-COMPOSITING-BITS-UPDATE
flutter: Another exception was thrown: RenderBox was not laid out: _RenderSingleChildViewport#922cb relayoutBoundary=up7 NEEDS-PAINT NEEDS-COMPOSITING-BITS-UPDATE
flutter: Another exception was thrown: RenderBox was not laid out: RenderIgnorePointer#c184c relayoutBoundary=up6 NEEDS-PAINT NEEDS-COMPOSITING-BITS-UPDATE
flutter: Another exception was thrown: RenderBox was not laid out: RenderSemanticsAnnotations#8f5d7 relayoutBoundary=up5 NEEDS-PAINT NEEDS-COMPOSITING-BITS-UPDATE
flutter: Another exception was thrown: RenderBox was not laid out: RenderPointerListener#a8da2 relayoutBoundary=up4 NEEDS-PAINT NEEDS-COMPOSITING-BITS-UPDATE
flutter: Another exception was thrown: RenderBox was not laid out: RenderSemanticsGestureHandler#d476f relayoutBoundary=up3 NEEDS-PAINT NEEDS-COMPOSITING-BITS-UPDATE
flutter: Another exception was thrown: RenderBox was not laid out: RenderPointerListener#a1f46 relayoutBoundary=up2 NEEDS-PAINT NEEDS-COMPOSITING-BITS-UPDATE
flutter: Another exception was thrown: RenderBox was not laid out: _RenderScrollSemantics#34c59 relayoutBoundary=up1 NEEDS-PAINT NEEDS-COMPOSITING-BITS-UPDATE
flutter: Another exception was thrown: RenderBox was not laid out: _RenderSingleChildViewport#922cb relayoutBoundary=up7 NEEDS-PAINT
flutter: Another exception was thrown: Updated layout information required for RenderMouseRegion#91c60 NEEDS-LAYOUT NEEDS-PAINT to calculate semantics.