Flutter最新修复了这个bug
https://github.com/flutter/flutter/issues/57662#event-3479331509
https://github.com/flutter/flutter/commit/62378a3755e0cd7cbc20f2c33a068cec51d92dd1
sliver_multi_box_adaptor.dart这个文件里面applyPaintTransform这个方法改为
@override
void applyPaintTransform(RenderBox child, Matrix4 transform) {
if (_keepAliveBucket.containsKey(indexOf(child))) {
// It is possible that widgets under kept alive children want to paint
// themselves. For example, the Material widget tries to paint all
// InkFeatures under its subtree as long as they are not disposed. In
// such case, we give it a zero transform to prevent them from painting.
transform.setZero();
}else {
applyPaintTransformForBoxChild(child, transform);
}
}
-------------------------------------------
将flutter中TabBar和TabBarView保持状态
https://www.jianshu.com/p/9944bdd17fc9
发现问题任然存在，把TabBarView改为PageView问题解决了
报错如下:
════════ Exception caught by rendering library ═════════════════════════════════════════════════════
The following NoSuchMethodError was thrown during paint():
The method '-' was called on null.
Receiver: null
Tried calling: -(0.0)
The relevant error-causing widget was:
Scaffold file:///Users/xxxx_page.dart:268:12
When the exception was thrown, this was the stack:
#0 Object.noSuchMethod (dart:core-patch/object_patch.dart:53:5)
#1 RenderSliverMultiBoxAdaptor.childMainAxisPosition (package:flutter/src/rendering/sliver_multi_box_adaptor.dart:573:37)
#2 RenderSliverHelpers.applyPaintTransformForBoxChild (package:flutter/src/rendering/sliver.dart:1695:20)
#3 RenderSliverMultiBoxAdaptor.applyPaintTransform (package:flutter/src/rendering/sliver_multi_box_adaptor.dart:586:5)
#4 InkFeature._paint (package:flutter/src/material/material.dart:623:26)
...
The following RenderObject was being processed when the exception was fired: _RenderInkFeatures#723fa relayoutBoundary=up7
... needs compositing
... parentData:
... constraints: BoxConstraints(0.0<=w<=360.0, 0.0<=h<=592.0)
... size: Size(360.0, 592.0)
RenderObject: _RenderInkFeatures#723fa relayoutBoundary=up7
needs compositing
parentData:
constraints: BoxConstraints(0.0<=w<=360.0, 0.0<=h<=592.0)
size: Size(360.0, 592.0)
... child: RenderCustomMultiChildLayoutBox#44d85 relayoutBoundary=up8 NEEDS-PAINT
... needs compositing
... parentData:
... constraints: BoxConstraints(0.0<=w<=360.0, 0.0<=h<=592.0)
... size: Size(360.0, 592.0)
... child 1: RenderPadding#11aad relayoutBoundary=up9
... needs compositing
... parentData: offset=Offset(0.0, 106.0); id=_ScaffoldSlot.body (can use size)
... constraints: BoxConstraints(0.0<=w<=360.0, 0.0<=h<=486.0)
... size: Size(360.0, 486.0)
... padding: EdgeInsets.zero
... textDirection: ltr
... child: RenderRepaintBoundary#7b6b8 relayoutBoundary=up10
... needs compositing
... parentData: offset=Offset(0.0, 0.0) (can use size)
... constraints: BoxConstraints(0.0<=w<=360.0, 0.0<=h<=486.0)
... layer: OffsetLayer#f7326 DETACHED
... engine layer: OffsetEngineLayer#c5afe
... offset: Offset(0.0, 106.0)
... size: Size(360.0, 486.0)
... metrics: 98.7% useful (2 bad vs 147 good)
... diagnosis: this is an outstandingly useful repaint boundary and should definitely be kept
... child: RenderCustomPaint#8cad4 relayoutBoundary=up11
... needs compositing
... parentData:
... constraints: BoxConstraints(0.0<=w<=360.0, 0.0<=h<=486.0)
... size: Size(360.0, 486.0)
... child 2: RenderConstrainedBox#a0be4 relayoutBoundary=up9 NEEDS-PAINT
... needs compositing
... parentData: offset=Offset(0.0, 0.0); id=_ScaffoldSlot.appBar (can use size)
... constraints: BoxConstraints(w=360.0, 0.0<=h<=592.0)
... size: Size(360.0, 106.0)
... additionalConstraints: BoxConstraints(0.0<=w<=Infinity, 0.0<=h<=106.0)
... child: RenderSemanticsAnnotations#ef5cc relayoutBoundary=up10 NEEDS-PAINT
... needs compositing
... parentData:
... constraints: BoxConstraints(w=360.0, 0.0<=h<=106.0)
... semantic boundary
... size: Size(360.0, 106.0)
... child: RenderAnnotatedRegion
... needs compositing
... parentData:
... constraints: BoxConstraints(w=360.0, 0.0<=h<=106.0)
... size: Size(360.0, 106.0)
... child 3: RenderStack#77a60 relayoutBoundary=up9
... parentData: offset=Offset(344.0, 576.0); id=_ScaffoldSlot.floatingActionButton (can use size)
... constraints: BoxConstraints(0.0<=w<=360.0, 0.0<=h<=592.0)
... size: Size(0.0, 0.0)
... alignment: centerRight
... textDirection: ltr
... fit: loose
... overflow: clip
... child 1: RenderTransform#fff78 relayoutBoundary=up10
... parentData: not positioned; offset=Offset(0.0, 0.0) (can use size)
... constraints: BoxConstraints(0.0<=w<=360.0, 0.0<=h<=592.0)
... size: Size(0.0, 0.0)
... transform matrix: [0] 0.0,0.0,0.0,0.0
[1] 0.0,0.0,0.0,0.0
[2] 0.0,0.0,1.0,0.0
[3] 0.0,0.0,0.0,1.0
... origin: null
... alignment: center
... textDirection: ltr
... transformHitTests: true
... child: RenderTransform#bc381 relayoutBoundary=up11
... parentData:
... constraints: BoxConstraints(0.0<=w<=360.0, 0.0<=h<=592.0)
... size: Size(0.0, 0.0)
... transform matrix: [0] 0.7,0.7,0.0,0.0
[1] -0.7,0.7,0.0,0.0
[2] 0.0,0.0,1.0,0.0
[3] 0.0,0.0,0.0,1.0
... origin: null
... alignment: center
... textDirection: ltr
... transformHitTests: true
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