[IOS] When the obscureText parameter of CupertinoTextField is set to true, the focus is requested, then the focus is lost, and the application crashes #77139
Description
Steps to Reproduce
- CupertinoTextField设置obscureText为true；
- 点击输入框，请求焦点，键盘弹出，点击空白处失去焦点，键盘收起；
- 程序崩溃；
- 一次不行，就多重复以上步骤几次；
Expected results:
程序正常运行
Actual results:
程序崩溃
Logs
[Bugly] Fatal signal(11) raised.
[ +23 ms] [Bugly] Trapped fatal signal 'SIGSEGV(11)'
(
0 ??? 0x0000000f2017378b 0x000000000000ffff + 0,
1 Flutter 0x00000001030a0963
_ZN7flutter19AccessibilityBridge15UpdateSemanticsENSt3__113unordered_mapIiNS_13SemanticsNodeENS1_4hashIiEENS1_8equal_toIiEENS1_9allocatorINS1_4pairIKiS3_EEEEEENS2_IiNS_25CustomAccessibilityActionES5_S7_NS8_INS9_ISA_SE_EEEEEE + 547,
2 Flutter 0x00000001030aac76
_ZN7flutter15PlatformViewIOS15UpdateSemanticsENSt3__113unordered_mapIiNS_13SemanticsNodeENS1_4hashIiEENS1_8equal_toIiEENS1_9allocatorINS1_4pairIKiS3_EEEEEENS2_IiNS_25CustomAccessibilityActionES5_S7_NS8_INS9_ISA_SE_EEEEEE + 80,
3 Flutter 0x0000000103443762
_ZNSt3__110__function6__funcIZN7flutter5Shell23OnEngineUpdateSemanticsENS_13unordered_mapIiNS2_13SemanticsNodeENS_4hashIiEENS_8equal_toIiEENS_9allocatorINS_4pairIKiS5_EEEEEENS4_IiNS2_25CustomAccessibilityActionES7_S9_NSA_INSB_ISC_SG_EEEEEEE4$_36NSA_ISK_EEFvvEEclEv + 108,
4 F<…>
[+1005 ms] [Bugly] Forward signal(11) to the previous handler: 0x0
No issues found! (ran in 5.8s)
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[✓] Connected device (4 available)
• Box (mobile) • 22638e6260b59d12da776a809ee5fec9870aa041 • ios • iOS 14.4
• iPad Pro (11-inch) (2nd generation) (mobile) • 5957F313-57B2-4F38-BD84-C656437FC3E3 • ios • com.apple.CoreSimulator.SimRuntime.iOS-14-4 (simulator)
• macOS (desktop) • macos • darwin-x64 • macOS 11.2.2 20D80 darwin-x64
• Chrome (web) • chrome • web-javascript • Google Chrome 88.0.4324.192
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Example
class __ContentState extends State<_Content> {
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('TextField设置obscureText=true，导致崩溃问题'),
),
body: Container(
padding: const EdgeInsets.all(10),
child: Row(
mainAxisAlignment: MainAxisAlignment.end,
children: <Widget>[
const Expanded(
child: CupertinoTextField(
padding: EdgeInsets.symmetric(
vertical: 15,
horizontal: 15,
),
obscureText: true,
),
),
CupertinoButton(
child: const Text('Set text'),
onPressed: () {
FocusManager.instance.primaryFocus?.unfocus();
},
),
],
),
),
);
}
}Metadata
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Assignees
Labels
Accessibility, e.g. VoiceOver or TalkBack. (aka a11y)Crashes that terminate the processIt was better in the past than it is nowflutter/packages/flutter/cupertino repositoryFocus traversal, gaining or losing focusflutter/packages/flutter/material repository.Found to occur in 1.27flutter/packages/flutter repository. See also f: labels.The issue has been confirmed reproducible and is ready to work oniOS applications specifically