我想制作一个具有额外高度的 SingleChileScrollView。我写了一个代码，之前如果可以工作，但现在我看到了一个 renderflex 对象错误。它曾经工作过一次，突然我看到了这个错误。有人可以看看它并提供帮助吗？
以下是代码：
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:xdflutter/Component61.dart';
import 'package:xdflutter/Component71.dart';
import 'package:xdflutter/Component81.dart';
import 'package:xdflutter/Component91.dart';
import './Component31.dart';
import './Component22.dart';
import './Component21.dart';
import './start.dart';
import 'package:adobe_xd/page_link.dart';
import 'package:flutter_svg/flutter_svg.dart';
class Fifth extends StatelessWidget {
Fifth({
Key key,
}) : super(key: key);
@override
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: const Color(0xffffffff),
body: SingleChildScrollView(
child: Container(
child: Column(
children: <Widget>[
Container(
height: 1000,
width: MediaQuery.of(context).size.width,
child: Column(
children: <Widget>[
Transform.translate(
offset: Offset(0.0, 290.0),
child:
// Adobe XD layer: 'right' (shape)
Container(
width: 315.0,
height: 287.0,
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(50.0),
image: DecorationImage(
image: const AssetImage('assets/images/right.png'),
fit: BoxFit.fill,
),
),
),
),
Transform.translate(
offset: Offset(0.0, -275.0),
child: SizedBox(
width: 434.0,
child: Text(
'What you should know \nbefore you begin? ',
style: TextStyle(
fontFamily: 'Corbel',
fontSize: 36,
color: const Color(0xff000000),
fontWeight: FontWeight.w700,
),
textAlign: TextAlign.center,
),
),
),
Transform.translate(
offset: Offset(0.0, -260.0),
child: SizedBox(
width: 348.0,
height: 108.0,
child: Component31(),
),
),
Transform.translate(
offset: Offset(-0.5, -376.5),
child: SvgPicture.string(
_svg_kr65u6,
allowDrawingOutsideViewBox: true,
),
),
Transform.translate(
offset: Offset(0.0, -370.0),
child: SizedBox(
width: 166.0,
child: Text(
'R:Right',
style: TextStyle(
fontFamily: 'Corbel',
fontSize: 42,
color: const Color(0xff000000),
fontWeight: FontWeight.w700,
decoration: TextDecoration.underline,
),
textAlign: TextAlign.center,
),
),
),
Transform.translate(
offset: Offset(0.0, 15.0),
child:
// Adobe XD layer: 'left' (shape)
Container(
width: 307.0,
height: 278.0,
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(50.0),
image: DecorationImage(
image: const AssetImage('assets/images/left.png'),
fit: BoxFit.fill,
),
),
),
),
Transform.translate(
offset: Offset(0.0, -320.0),
child: SizedBox(
width: 130.0,
child: Text(
'L:Left',
style: TextStyle(
fontFamily: 'Corbel',
fontSize: 42,
color: const Color(0xff000000),
fontWeight: FontWeight.w700,
decoration: TextDecoration.underline,
),
textAlign: TextAlign.center,
),
),
),
Transform.translate(
offset: Offset(0.0, 50.0),
child:
// Adobe XD layer: 'face' (shape)
Container(
width: 312.0,
height: 289.0,
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(54.0),
image: DecorationImage(
image: const AssetImage('assets/images/face.png'),
fit: BoxFit.fill,
),
),
),
),
Transform.translate(
offset: Offset(0.0, -300.0),
child: SizedBox(
width: 142.0,
child: Text(
'F:Face',
style: TextStyle(
fontFamily: 'Corbel',
fontSize: 42,
color: const Color(0xff000000),
fontWeight: FontWeight.w700,
decoration: TextDecoration.underline,
),
textAlign: TextAlign.center,
),
),
),
Transform.translate(
offset: Offset(0.0, 90.0),
child: Container(
width: 314.0,
height: 298.0,
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(50.0),
image: DecorationImage(
image: const AssetImage('assets/images/back.png'),
fit: BoxFit.fill,
),
),
),
),
Transform.translate(
offset: Offset(0.0, -270.0),
child: SizedBox(
width: 173.0,
child: Text(
'B: Back ',
style: TextStyle(
fontFamily: 'Corbel',
fontSize: 42,
color: const Color(0xff000000),
fontWeight: FontWeight.w700,
decoration: TextDecoration.underline,
),
textAlign: TextAlign.center,
),
),
),
Transform.translate(
offset: Offset(0.0, 130.0),
child: Container(
width: 314.0,
height: 300.0,
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(50.0),
image: DecorationImage(
image: const AssetImage('assets/images/upper.png'),
fit: BoxFit.fill,
),
),
),
),
Transform.translate(
offset: Offset(0.0, -230.0),
child: SizedBox(
width: 192.0,
child: Text(
'U: Upper',
style: TextStyle(
fontFamily: 'Corbel',
fontSize: 42,
color: const Color(0xff000000),
fontWeight: FontWeight.w700,
decoration: TextDecoration.underline,
),
textAlign: TextAlign.center,
),
),
),
Transform.translate(
offset: Offset(0.0, 165.0),
child: Container(
width: 310.0,
height: 296.0,
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(50.0),
image: DecorationImage(
image: const AssetImage('assets/images/down.png'),
fit: BoxFit.fill,
),
),
),
),
Transform.translate(
offset: Offset(0.0, -190.0),
child: SizedBox(
width: 187.0,
child: Text(
'D: Down',
style: TextStyle(
fontFamily: 'Corbel',
fontSize: 42,
color: const Color(0xff000000),
fontWeight: FontWeight.w700,
decoration: TextDecoration.underline,
),
textAlign: TextAlign.center,
),
),
),
Transform.translate(
offset: Offset(0.0, 145.0),
child: SizedBox(
width: 329.0,
child: Text(
'R2: Right twice',
style: TextStyle(
fontFamily: 'Corbel',
fontSize: 42,
color: const Color(0xff000000),
fontWeight: FontWeight.w700,
decoration: TextDecoration.underline,
),
textAlign: TextAlign.center,
),
),
),
Transform.translate(
offset: Offset(0.0, 160.0),
child: Container(
width: 312.0,
height: 294.0,
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(50.0),
image: DecorationImage(
image: const AssetImage('assets/images/r2.png'),
fit: BoxFit.fill,
),
),
),
),
Transform.translate(
offset: Offset(0.5, 170.0),
child: SizedBox(
width: 442.0,
height: 0.0,
child: Component22(),
),
),
Transform.translate(
offset: Offset(0.0, 185.0),
child: SizedBox(
width: 408.0,
child: Text(
'Counter-clockwise \nrotations',
style: TextStyle(
fontFamily: 'Corbel',
fontSize: 42,
color: const Color(0xff000000),
fontWeight: FontWeight.w700,
decoration: TextDecoration.underline,
),
textAlign: TextAlign.center,
),
),
),
Transform.translate(
offset: Offset(0.5, 380.0),
child: SizedBox(
width: 442.0,
height: 0.0,
child: Component22(),
),
),
Transform.translate(
offset: Offset(0.0, 200.0),
child: SizedBox(
width: 500.0,
height: 200.0,
child: Component61(),
),
),
Transform.translate(
offset: Offset(0.5, 260.0),
child: SizedBox(
width: 442.0,
height: 0.0,
child: Component22(),
// THIS IS IF I NEED TO ADD LINE BELOW SLICE TURNS
),
),
Transform.translate(
offset: Offset(0.0, 190.0),
child: SizedBox(
width: 238.0,
child: Text(
'Slice turns ',
style: TextStyle(
fontFamily: 'Corbel',
fontSize: 42,
color: const Color(0xff000000),
fontWeight: FontWeight.w700,
decoration: TextDecoration.underline,
),
textAlign: TextAlign.center,
),
),
),
Transform.translate(
offset: Offset(0.0, 280.0),
child: Container(
width: 312.0,
height: 303.0,
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(50.0),
image: DecorationImage(
image: const AssetImage('assets/images/m_anti.png'),
fit: BoxFit.fill,
),
),
),
),
Transform.translate(
offset: Offset(0.0, -80.0),
child: SizedBox(
width: 226.0,
child: Text(
'M: Middle ',
style: TextStyle(
fontFamily: 'Corbel',
fontSize: 42,
color: const Color(0xff000000),
fontWeight: FontWeight.w700,
decoration: TextDecoration.underline,
),
textAlign: TextAlign.center,
),
),
),
Transform.translate(
offset: Offset(0.0, 360.0),
child: Container(
width: 304.0,
height: 297.0,
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(50.0),
image: DecorationImage(
image: const AssetImage('assets/images/m.png'),
fit: BoxFit.fill,
),
),
),
),
Transform.translate(
offset: Offset(0.0, -50.0),
child: SizedBox(
width: 338.0,
child: Text(
'M\': Middle anti-\nclockwise ',
style: TextStyle(
fontFamily: 'Corbel',
fontSize: 42,
color: const Color(0xff000000),
fontWeight: FontWeight.w700,
decoration: TextDecoration.underline,
),
textAlign: TextAlign.center,
),
),
),
Transform.translate(
offset: Offset(-0.5, 280.5),
child: SizedBox(
width: 442.0,
height: 0.0,
child: Component22(),
),
),
Transform.translate(
offset: Offset(0.0, 300.0),
child: SizedBox(
width: 500,
height: 200,
child: Component71(),
),
),
Transform.translate(
offset: Offset(5.5, 220.5),
child: SizedBox(
width: 305.0,
height: 0.0,
child: Component22(),
),
),
Transform.translate(
offset: Offset(0.0, 235.5),
child: SizedBox(
width: 500.0,
height: 200.0,
child: Component81(),
),
),
Transform.translate(
offset: Offset(0.0, 160.5),
child: SizedBox(
width: 500.0,
height: 200.0,
child: Component91(),
),
),
Transform.translate(
offset: Offset(5.5, -60.5),
child: SizedBox(
width: 305.0,
height: 0.0,
child: Component22(),
),
),
Transform.translate(
offset: Offset(0.0, 90.5),
child: SizedBox(
width: 500.0,
height: 0.0,
child: Component22(),
),
),
],
),
),
// Transform.translate(
// offset: Offset(4.0, 250.0),
// child: PageLink(
// links: [
// PageLinkInfo(
// transition: LinkTransition.Fade,
// ease: Curves.easeOut,
// duration: 0.3,
// pageBuilder: () => start(),
// ),
// ],
// child: SizedBox(
// width: 193.0,
// height: 43.0,
// child: Text(
// 'Begin learning! ',
// style: TextStyle(
// fontFamily: 'Corbel',
// fontSize: 28,
// color: const Color(0xffffffff),
// fontWeight: FontWeight.w700,
// ),
// textAlign: TextAlign.right,
// ),
// ),
// ),
// ),
Transform.translate(
offset: Offset(0.0, 100.0),
child: RaisedButton(
onPressed: () {},
child: const Text('Begin learning!',
style: TextStyle(
fontFamily: 'Corbel',
fontWeight: FontWeight.w700,
fontSize: 28,
color: const Color(0xffffffff)
),
),
),
),
Transform.translate(
offset: Offset(4.0, 100.0),
child: PageLink(
links: [
PageLinkInfo(
transition: LinkTransition.Fade,
ease: Curves.easeOut,
duration: 0.3,
pageBuilder: () => Fifth(),
),
],
),
),
Transform.translate(
offset: Offset(60, 670.5),
child: Text(
'Start learning!',
style: TextStyle(
fontSize: 40.0,
fontWeight: FontWeight.w700,
fontFamily: 'Corbel',
color: Colors.black,
),
),
),
Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Align(
alignment: Alignment.bottomCenter,
),
],
),
],),
),
),);
}
}
const String _svg_kr65u6 =
'<svg viewBox="-33.5 113.5 442.0 121.0" ><path transform="translate(-33.5, 113.5)" d="M 442 0 L 0 0" fill="none" stroke="#707070" stroke-width="3" stroke-miterlimit="4" stroke-linecap="butt" /><path transform="translate(-33.5, 234.5)" d="M 442 0 L 0 0" fill="none" stroke="#707070" stroke-width="3" stroke-miterlimit="4" stroke-linecap="butt" /></svg>';
这是我看到的错误：
Performing hot restart...
Syncing files to device AOSP on IA Emulator...
Restarted application in 2,914ms.
════════ Exception caught by rendering library ═════════════════════════════════════════════════════
The following assertion was thrown during performLayout():
RenderPointerListener object was given an infinite size during layout.
This probably means that it is a render object that tries to be as big as possible, but it was put inside another render object that allows its children to pick their own size.
The nearest ancestor providing an unbounded height constraint is: _RenderSingleChildViewport#c6080 relayoutBoundary=up10 NEEDS-LAYOUT NEEDS-PAINT NEEDS-COMPOSITING-BITS-UPDATE
... needs compositing
... parentData: <none> (can use size)
... constraints: BoxConstraints(0.0<=w<=392.7, 0.0<=h<=759.3)
... size: MISSING
The constraints that applied to the RenderPointerListener were: BoxConstraints(0.0<=w<=392.7, 0.0<=h<=Infinity)
The exact size it was given was: Size(392.7, Infinity)
See https://flutter.dev/docs/development/ui/layout/box-constraints for more information.
The relevant error-causing widget was:
PageLink file:///C:/Users/aayus/Desktop/xdflutter/lib/fourth.dart:516:24
When the exception was thrown, this was the stack:
#0 RenderBox.debugAssertDoesMeetConstraints.<anonymous closure> (package:flutter/src/rendering/box.dart:1967:9)
#1 RenderBox.debugAssertDoesMeetConstraints (package:flutter/src/rendering/box.dart:2035:6)
#2 RenderBox.size=.<anonymous closure> (package:flutter/src/rendering/box.dart:1752:7)
#3 RenderBox.size= (package:flutter/src/rendering/box.dart:1754:6)
#4 RenderPointerListener.performResize (package:flutter/src/rendering/proxy_box.dart:2609:5)
...
The following RenderObject was being processed when the exception was fired: RenderPointerListener#99b51 relayoutBoundary=up14 NEEDS-LAYOUT NEEDS-PAINT
... parentData: <none> (can use size)
... constraints: BoxConstraints(0.0<=w<=392.7, 0.0<=h<=Infinity)
... size: Size(392.7, Infinity)
... behavior: translucent
... listeners: down
RenderObject: RenderPointerListener#99b51 relayoutBoundary=up14 NEEDS-LAYOUT NEEDS-PAINT
parentData: <none> (can use size)
constraints: BoxConstraints(0.0<=w<=392.7, 0.0<=h<=Infinity)
size: Size(392.7, Infinity)
behavior: translucent
listeners: down
════════════════════════════════════════════════════════════════════════════════════════════════════
════════ Exception caught by rendering library ═════════════════════════════════════════════════════
RenderSemanticsGestureHandler object was given an infinite size during layout.
The relevant error-causing widget was:
PageLink file:///C:/Users/aayus/Desktop/xdflutter/lib/fourth.dart:516:24
The following RenderObject was being processed when the exception was fired: RenderSemanticsGestureHandler#9150f relayoutBoundary=up13 NEEDS-LAYOUT NEEDS-PAINT NEEDS-COMPOSITING-BITS-UPDATE
parentData: <none> (can use size)
constraints: BoxConstraints(0.0<=w<=392.7, 0.0<=h<=Infinity)
size: Size(392.7, Infinity)
gestures: tap
child: RenderPointerListener#99b51 relayoutBoundary=up14 NEEDS-PAINT
parentData: <none> (can use size)
constraints: BoxConstraints(0.0<=w<=392.7, 0.0<=h<=Infinity)
size: Size(392.7, Infinity)
behavior: translucent
listeners: down
RenderObject: RenderSemanticsGestureHandler#9150f relayoutBoundary=up13 NEEDS-LAYOUT NEEDS-PAINT NEEDS-COMPOSITING-BITS-UPDATE
parentData: <none> (can use size)
constraints: BoxConstraints(0.0<=w<=392.7, 0.0<=h<=Infinity)
size: Size(392.7, Infinity)
gestures: tap
child: RenderPointerListener#99b51 relayoutBoundary=up14 NEEDS-PAINT
parentData: <none> (can use size)
constraints: BoxConstraints(0.0<=w<=392.7, 0.0<=h<=Infinity)
size: Size(392.7, Infinity)
behavior: translucent
listeners: down
════════════════════════════════════════════════════════════════════════════════════════════════════
════════ Exception caught by rendering library ═════════════════════════════════════════════════════
RenderTransform object was given an infinite size during layout.
The relevant error-causing widget was:
Transform file:///C:/Users/aayus/Desktop/xdflutter/lib/fourth.dart:514:27
════════════════════════════════════════════════════════════════════════════════════════════════════
════════ Exception caught by rendering library ═════════════════════════════════════════════════════
RenderFlex object was given an infinite size during layout.
The relevant error-causing widget was:
Column file:///C:/Users/aayus/Desktop/xdflutter/lib/fourth.dart:24:18
════════════════════════════════════════════════════════════════════════════════════════════════════
════════ Exception caught by rendering library ═════════════════════════════════════════════════════
The method '>' was called on null.
Receiver: null
Tried calling: >(1e-10)
The relevant error-causing widget was:
Column file:///C:/Users/aayus/Desktop/xdflutter/lib/fourth.dart:24:18
════════════════════════════════════════════════════════════════════════════════════════════════════
有人可以帮忙吗？谢谢