我使用Flutter创建Pomodoro计时器应用程序。主页上有日期TabController。
我记录用户第一次使用应用程序的日期到本地JSON文件。当应用启动时,检查JSON文件并获取记录。并计算今天之间的间隔天数,然后我要更新tabcontroller。
结果是正确的日期,我将初始索引设置为list.lenght - 1
,但是我设置了任何数字,例如29、4、5、6,下划线是正确的,但综合浏览量不正确。
我认为问题在于在setState中更新tabController,但是我已经尝试了很多次,但都无法正常工作。
有人可以帮我看看出了什么问题吗?感谢您的帮助。
我有这样的代码,但无法正常工作。 Dynamically Updating TabControl Content at Runtime
void initState() {
super.initState();
jsonFileHelper = new JsonFileHelper();
myList.add(DateTime(today.year, today.month, today.day));
tabController = new TabController(
length: myList.length,
vsync: this,
);
jsonFileHelper.readToFile().then((res) {
firstDate = DateTime.fromMillisecondsSinceEpoch(res['firstDate']);
difference = DateTime(today.year, today.month, today.day)
.difference(firstDate)
.inDays;
setState(() {
myList.clear();
});
List<DateTime> tempList = new List();
for (int i = 0; i <= difference; i++) {
tempList.add(DateTime(today.year, today.month, today.day - i));
}
tempList.forEach((date) {
myList.insert(0, date);
});
setState(() {
tabController = new TabController(
length: myList.length,
vsync: this,
initialIndex: myList.length - 1);
tabController.addListener(() {
animationController.reverse();
});
});
}
});
}
// this is build tab function.
_buildTabs(List<DateTime> data) {
List<Widget> listWidget = new List();
data.forEach((date) {
var widget = Container(
child: Padding(
padding: const EdgeInsets.all(8.0),
child: Column(
children: <Widget>[
Text(DateFormat('EEE').format(date)),
Text(
date.day.toString(),
style: TextStyle(
fontSize: 20.0,
color: Colors.black87,
fontWeight: FontWeight.bold,
),
),
],
),
),
);
listWidget.add(widget);
});
return listWidget;
}
我希望输出显示在最后一天,但是实际输出是2019-03-01(我设置的第一条记录是2019-2-28)。
I/flutter ( 8122): ══╡ EXCEPTION CAUGHT BY WIDGETS LIBRARY ╞═══════════════════════════════════════════════════════════
I/flutter ( 8122): The following assertion was thrown building RawGestureDetector(state:
I/flutter ( 8122): RawGestureDetectorState#dc79e(gestures: [tap], behavior: opaque)):
I/flutter ( 8122): Multiple widgets used the same GlobalKey.
I/flutter ( 8122): The key [GlobalKey#82017] was used by multiple widgets. The parents of those widgets were:
I/flutter ( 8122): - Padding(padding: EdgeInsets(16.0, 0.0, 16.0, 0.0), dependencies: [Directionality], renderObject:
I/flutter ( 8122): RenderPadding#2875b NEEDS-LAYOUT NEEDS-PAINT DETACHED)
I/flutter ( 8122): - Padding(padding: EdgeInsets(16.0, 0.0, 16.0, 0.0), dependencies: [Directionality], renderObject:
I/flutter ( 8122): RenderPadding#2f066 NEEDS-LAYOUT NEEDS-PAINT)
I/flutter ( 8122): A GlobalKey can only be specified on one widget at a time in the widget tree.
I/flutter ( 8122):
I/flutter ( 8122): When the exception was thrown, this was the stack:
I/flutter ( 8122): #0 GlobalKey._debugReserveFor.<anonymous closure> (package:flutter/src/widgets/framework.dart:182:11)
I/flutter ( 8122): #1 GlobalKey._debugReserveFor (package:flutter/src/widgets/framework.dart:200:6)
I/flutter ( 8122): #2 Element.updateChild.<anonymous closure> (package:flutter/src/widgets/framework.dart:2730:13)
I/flutter ( 8122): #3 Element.updateChild (package:flutter/src/widgets/framework.dart:2733:6)
I/flutter ( 8122): #4 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:4876:14)
I/flutter ( 8122): #5 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2956:14)
I/flutter ( 8122): #6 Element.updateChild (package:flutter/src/widgets/framework.dart:2759:12)
I/flutter ( 8122): #7 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:4876:14)
I/flutter ( 8122): #8 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2956:14)
I/flutter ( 8122): #9 Element.updateChild (package:flutter/src/widgets/framework.dart:2759:12)
I/flutter ( 8122): #10 RenderObjectElement.updateChildren (package:flutter/src/widgets/framework.dart:4659:32)
I/flutter ( 8122): #11 MultiChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4992:17)
I/flutter ( 8122): #12 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #13 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4883:14)
I/flutter ( 8122): #14 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #15 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4883:14)
I/flutter ( 8122): #16 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #17 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4883:14)
I/flutter ( 8122): #18 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #19 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3747:16)
I/flutter ( 8122): #20 Element.rebuild (package:flutter/src/widgets/framework.dart:3559:5)
I/flutter ( 8122): #21 StatefulElement.update (package:flutter/src/widgets/framework.dart:3894:5)
I/flutter ( 8122): #22 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #23 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3747:16)
I/flutter ( 8122): #24 Element.rebuild (package:flutter/src/widgets/framework.dart:3559:5)
I/flutter ( 8122): #25 StatelessElement.update (package:flutter/src/widgets/framework.dart:3796:5)
I/flutter ( 8122): #26 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #27 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3747:16)
I/flutter ( 8122): #28 Element.rebuild (package:flutter/src/widgets/framework.dart:3559:5)
I/flutter ( 8122): #29 StatefulElement.update (package:flutter/src/widgets/framework.dart:3894:5)
I/flutter ( 8122): #30 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #31 RenderObjectElement.updateChildren (package:flutter/src/widgets/framework.dart:4601:32)
I/flutter ( 8122): #32 MultiChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4992:17)
I/flutter ( 8122): #33 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #34 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3747:16)
I/flutter ( 8122): #35 Element.rebuild (package:flutter/src/widgets/framework.dart:3559:5)
I/flutter ( 8122): #36 ProxyElement.update (package:flutter/src/widgets/framework.dart:4006:5)
I/flutter ( 8122): #37 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #38 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3747:16)
I/flutter ( 8122): #39 Element.rebuild (package:flutter/src/widgets/framework.dart:3559:5)
I/flutter ( 8122): #40 StatelessElement.update (package:flutter/src/widgets/framework.dart:3796:5)
I/flutter ( 8122): #41 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #42 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3747:16)
I/flutter ( 8122): #43 Element.rebuild (package:flutter/src/widgets/framework.dart:3559:5)
I/flutter ( 8122): #44 ProxyElement.update (package:flutter/src/widgets/framework.dart:4006:5)
I/flutter ( 8122): #45 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #46 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3747:16)
I/flutter ( 8122): #47 Element.rebuild (package:flutter/src/widgets/framework.dart:3559:5)
I/flutter ( 8122): #48 StatefulElement.update (package:flutter/src/widgets/framework.dart:3894:5)
I/flutter ( 8122): #49 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #50 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4883:14)
I/flutter ( 8122): #51 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #52 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4883:14)
I/flutter ( 8122): #53 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #54 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4883:14)
I/flutter ( 8122): #55 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #56 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4883:14)
I/flutter ( 8122): #57 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #58 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4883:14)
I/flutter ( 8122): #59 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #60 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4883:14)
I/flutter ( 8122): #61 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #62 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3747:16)
I/flutter ( 8122): #63 Element.rebuild (package:flutter/src/widgets/framework.dart:3559:5)
I/flutter ( 8122): #64 StatefulElement.update (package:flutter/src/widgets/framework.dart:3894:5)
I/flutter ( 8122): #65 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #66 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3747:16)
I/flutter ( 8122): #67 Element.rebuild (package:flutter/src/widgets/framework.dart:3559:5)
I/flutter ( 8122): #68 ProxyElement.update (package:flutter/src/widgets/framework.dart:4006:5)
I/flutter ( 8122): #69 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #70 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4883:14)
I/flutter ( 8122): #71 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #72 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4883:14)
I/flutter ( 8122): #73 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #74 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4883:14)
I/flutter ( 8122): #75 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #76 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4883:14)
I/flutter ( 8122): #77 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #78 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3747:16)
I/flutter ( 8122): #79 Element.rebuild (package:flutter/src/widgets/framework.dart:3559:5)
I/flutter ( 8122): #80 StatelessElement.update (package:flutter/src/widgets/framework.dart:3796:5)
I/flutter ( 8122): #81 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #82 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3747:16)
I/flutter ( 8122): #83 Element.rebuild (package:flutter/src/widgets/framework.dart:3559:5)
I/flutter ( 8122): #84 StatefulElement.update (package:flutter/src/widgets/framework.dart:3894:5)
I/flutter ( 8122): #85 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #86 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3747:16)
I/flutter ( 8122): #87 Element.rebuild (package:flutter/src/widgets/framework.dart:3559:5)
I/flutter ( 8122): #88 StatefulElement.update (package:flutter/src/widgets/framework.dart:3894:5)
I/flutter ( 8122): #89 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #90 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3747:16)
I/flutter ( 8122): #91 Element.rebuild (package:flutter/src/widgets/framework.dart:3559:5)
I/flutter ( 8122): #92 StatelessElement.update (package:flutter/src/widgets/framework.dart:3796:5)
I/flutter ( 8122): #93 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #94 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3747:16)
I/flutter ( 8122): #95 Element.rebuild (package:flutter/src/widgets/framework.dart:3559:5)
I/flutter ( 8122): #96 StatefulElement.update (package:flutter/src/widgets/framework.dart:3894:5)
I/flutter ( 8122): #97 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #98 RenderObjectElement.updateChildren (package:flutter/src/widgets/framework.dart:4601:32)
I/flutter ( 8122): #99 MultiChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4992:17)
I/flutter ( 8122): #100 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #101 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3747:16)
I/flutter ( 8122): #102 Element.rebuild (package:flutter/src/widgets/framework.dart:3559:5)
I/flutter ( 8122): #103 ProxyElement.update (package:flutter/src/widgets/framework.dart:4006:5)
I/flutter ( 8122): #104 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #105 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4883:14)
I/flutter ( 8122): #106 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #107 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3747:16)
I/flutter ( 8122): #108 Element.rebuild (package:flutter/src/widgets/framework.dart:3559:5)
I/flutter ( 8122): #109 StatelessElement.update (package:flutter/src/widgets/framework.dart:3796:5)
I/flutter ( 8122): #110 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #111 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4883:14)
I/flutter ( 8122): #112 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #113 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4883:14)
I/flutter ( 8122): #114 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #115 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3747:16)
I/flutter ( 8122): #116 Element.rebuild (package:flutter/src/widgets/framework.dart:3559:5)
I/flutter ( 8122): #117 ProxyElement.update (package:flutter/src/widgets/framework.dart:4006:5)
I/flutter ( 8122): #118 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #119 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3747:16)
I/flutter ( 8122): #120 Element.rebuild (package:flutter/src/widgets/framework.dart:3559:5)
I/flutter ( 8122): #121 StatefulElement.update (package:flutter/src/widgets/framework.dart:3894:5)
I/flutter ( 8122): #122 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #123 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4883:14)
I/flutter ( 8122): #124 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #125 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3747:16)
I/flutter ( 8122): #126 Element.rebuild (package:flutter/src/widgets/framework.dart:3559:5)
I/flutter ( 8122): #127 StatelessElement.update (package:flutter/src/widgets/framework.dart:3796:5)
I/flutter ( 8122): #128 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #129 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4883:14)
I/flutter ( 8122): #130 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #131 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3747:16)
I/flutter ( 8122): #132 Element.rebuild (package:flutter/src/widgets/framework.dart:3559:5)
I/flutter ( 8122): #133 StatefulElement.update (package:flutter/src/widgets/framework.dart:3894:5)
I/flutter ( 8122): #134 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #135 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3747:16)
I/flutter ( 8122): home page datetime: 2019-02-28T00:00:00.000
D/ ( 8122): HostConnection::get() New Host Connection established 0xebd99480, tid 8185
D/EGL_emulation( 8122): eglMakeCurrent: 0xf10dcf60: ver 3 0 (tinfo 0xebd832c0)
I/flutter ( 8122): #136 Element.rebuild (package:flutter/src/widgets/framework.dart:3559:5)
I/flutter ( 8122): #137 StatefulElement.update (package:flutter/src/widgets/framework.dart:3894:5)
I/flutter ( 8122): #138 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #139 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4883:14)
I/flutter ( 8122): #140 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #141 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4883:14)
I/flutter ( 8122): #142 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #143 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3747:16)
I/flutter ( 8122): #144 Element.rebuild (package:flutter/src/widgets/framework.dart:3559:5)
I/flutter ( 8122): #145 StatefulElement.update (package:flutter/src/widgets/framework.dart:3894:5)
I/flutter ( 8122): #146 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #147 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3747:16)
I/flutter ( 8122): #148 Element.rebuild (package:flutter/src/widgets/framework.dart:3559:5)
I/flutter ( 8122): #149 ProxyElement.update (package:flutter/src/widgets/framework.dart:4006:5)
I/flutter ( 8122): #150 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #151 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4883:14)
I/flutter ( 8122): #152 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #153 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3747:16)
I/flutter ( 8122): #154 Element.rebuild (package:flutter/src/widgets/framework.dart:3559:5)
I/flutter ( 8122): #155 ProxyElement.update (package:flutter/src/widgets/framework.dart:4006:5)
I/flutter ( 8122): #156 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #157 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3747:16)
I/flutter ( 8122): #158 Element.rebuild (package:flutter/src/widgets/framework.dart:3559:5)
I/flutter ( 8122): #159 ProxyElement.update (package:flutter/src/widgets/framework.dart:4006:5)
I/flutter ( 8122): #160 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #161 RenderObjectElement.updateChildren (package:flutter/src/widgets/framework.dart:4601:32)
I/flutter ( 8122): #162 MultiChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4992:17)
I/flutter ( 8122): #163 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #164 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3747:16)
I/flutter ( 8122): #165 Element.rebuild (package:flutter/src/widgets/framework.dart:3559:5)
I/flutter ( 8122): #166 StatefulElement.update (package:flutter/src/widgets/framework.dart:3894:5)
I/flutter ( 8122): #167 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #168 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3747:16)
I/flutter ( 8122): #169 Element.rebuild (package:flutter/src/widgets/framework.dart:3559:5)
I/flutter ( 8122): #170 ProxyElement.update (package:flutter/src/widgets/framework.dart:4006:5)
I/flutter ( 8122): #171 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #172 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3747:16)
I/flutter ( 8122): #173 Element.rebuild (package:flutter/src/widgets/framework.dart:3559:5)
I/flutter ( 8122): #174 StatefulElement.update (package:flutter/src/widgets/framework.dart:3894:5)
I/flutter ( 8122): #175 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #176 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4883:14)
I/flutter ( 8122): #177 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #178 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3747:16)
I/flutter ( 8122): #179 Element.rebuild (package:flutter/src/widgets/framework.dart:3559:5)
I/flutter ( 8122): #180 StatelessElement.update (package:flutter/src/widgets/framework.dart:3796:5)
I/flutter ( 8122): #181 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #182 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4883:14)
I/flutter ( 8122): #183 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #184 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3747:16)
I/flutter ( 8122): #185 Element.rebuild (package:flutter/src/widgets/framework.dart:3559:5)
I/flutter ( 8122): #186 StatefulElement.update (package:flutter/src/widgets/framework.dart:3894:5)
I/flutter ( 8122): #187 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #188 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3747:16)
I/flutter ( 8122): #189 Element.rebuild (package:flutter/src/widgets/framework.dart:3559:5)
I/flutter ( 8122): #190 StatefulElement.update (package:flutter/src/widgets/framework.dart:3894:5)
I/flutter ( 8122): #191 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #192 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3747:16)
I/flutter ( 8122): #193 Element.rebuild (package:flutter/src/widgets/framework.dart:3559:5)
I/flutter ( 8122): #194 ProxyElement.update (package:flutter/src/widgets/framework.dart:4006:5)
I/flutter ( 8122): #195 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #196 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3747:16)
I/flutter ( 8122): #197 Element.rebuild (package:flutter/src/widgets/framework.dart:3559:5)
I/flutter ( 8122): #198 ProxyElement.update (package:flutter/src/widgets/framework.dart:4006:5)
I/flutter ( 8122): #199 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #200 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3747:16)
I/flutter ( 8122): #201 Element.rebuild (package:flutter/src/widgets/framework.dart:3559:5)
I/flutter ( 8122): #202 StatefulElement.update (package:flutter/src/widgets/framework.dart:3894:5)
I/flutter ( 8122): #203 Element.updateChild (package:flutter/src/widgets/framework.dart:2748:15)
I/flutter ( 8122): #204 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3747:16)
I/flutter ( 8122): #205 Element.rebuild (package:flutter/src/widgets/framework.dart:3559:5)
I/flutter ( 8122): #206 BuildOwner.buildScope (package:flutter/src/widgets/framework.dart:2273:33)
I/flutter ( 8122): #207 _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding&PaintingBinding&SemanticsBinding&RendererBinding&WidgetsBinding.drawFrame (package:flutter/src/widgets/binding.dart:700:20)
I/flutter ( 8122): #208 _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding&PaintingBinding&SemanticsBinding&RendererBinding._handlePersistentFrameCallback (package:flutter/src/rendering/binding.dart:268:5)
I/flutter ( 8122): #209 _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding._invokeFrameCallback (package:flutter/src/scheduler/binding.dart:988:15)
I/flutter ( 8122): #210 _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding.handleDrawFrame (package:flutter/src/scheduler/binding.dart:928:9)
I/flutter ( 8122): #211 _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding.scheduleWarmUpFrame.<anonymous closure> (package:flutter/src/scheduler/binding.dart:749:7)
I/flutter ( 8122): #220 _Timer._runTimers (dart:isolate/runtime/libtimer_impl.dart:382:19)
I/flutter ( 8122): #221 _Timer._handleMessage (dart:isolate/runtime/libtimer_impl.dart:416:5)
I/flutter ( 8122): #222 _RawReceivePortImpl._handleMessage (dart:isolate/runtime/libisolate_patch.dart:171:12)
I/flutter ( 8122): (elided 8 frames from package dart:async)
I/flutter ( 8122): ════════════════════════════════════════════════════════════════════════════════════════════════════
I/flutter ( 8122): Another exception was thrown: A RenderFlex overflowed by 99896 pixels on the bottom.
答案 0 :(得分:0)
我也无法重新定义TabController
的长度。
解决方案是仅在TabController
和initState
中创建dispose
一次(也仅创建一次)-假装TabController length
只是最大长度,如果您认为自己的应用最大数量为100,则使用固定的100。