[Android][A11y] voice access clear text causes crash if its value is attributed string #103354
Description
b/226320834
Steps to Reproduce
import 'package:flutter/gestures.dart';
import 'package:flutter/material.dart';
class Home extends StatelessWidget {
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Semantics(
link: true,
child: Text('test'),
),
),
body: ListView(
children: [
TextField(controller: SpellOutTextEditingController(),)
// SelectionArea(child: Text('test1')),
// SelectionArea(child:Text('test2')),
],
),
);
}
}
class SpellOutTextEditingController extends TextEditingController {
SpellOutTextEditingController({String? text}) : super(text: text);
@override
TextSpan buildTextSpan({
required BuildContext context,
TextStyle? style,
required bool withComposing,
}) {
if (text.isEmpty) {
return super.buildTextSpan(
context: context,
style: style,
withComposing: withComposing,
);
}
return buildSpellOutTextSpan(withComposing: withComposing, style: style);
}
@visibleForTesting
TextSpan buildSpellOutTextSpan({
required bool withComposing,
TextStyle? style,
}) {
assert(
!value.composing.isValid || !withComposing || value.isComposingRangeValid,
);
// If the composing range is out of range for the current text, ignore it to
// preserve the tree integrity, otherwise in release mode a RangeError will
// be thrown and this EditableText will be built with a broken subtree.
if (!value.isComposingRangeValid || !withComposing) {
return TextSpan(style: style, text: text, spellOut: true);
}
final composingStyle =
style?.merge(const TextStyle(decoration: TextDecoration.underline)) ??
const TextStyle(decoration: TextDecoration.underline);
return TextSpan(
style: style,
spellOut: true,
children: <TextSpan>[
TextSpan(text: value.composing.textBefore(value.text)),
TextSpan(
style: composingStyle,
text: value.composing.textInside(value.text),
),
TextSpan(text: value.composing.textAfter(value.text)),
],
);
}
}
void main() {
runApp(MaterialApp(home: Home()));
}- type something into textfield and turn on voice access.
- say 'clear text'
Logs
Logs
E/AndroidRuntime(14090): FATAL EXCEPTION: main
E/AndroidRuntime(14090): Process: com.example.test8, PID: 14090
E/AndroidRuntime(14090): java.lang.IndexOutOfBoundsException: setSpan (0 ... 3) ends beyond length 0
E/AndroidRuntime(14090): at android.text.SpannableStringInternal.checkRange(SpannableStringInternal.java:491)
E/AndroidRuntime(14090): at android.text.SpannableStringInternal.setSpan(SpannableStringInternal.java:197)
E/AndroidRuntime(14090): at android.text.SpannableStringInternal.setSpan(SpannableStringInternal.java:184)
E/AndroidRuntime(14090): at android.text.SpannableString.setSpan(SpannableString.java:60)
E/AndroidRuntime(14090): at io.flutter.view.AccessibilityBridge$SemanticsNode.createSpannableString(AccessibilityBridge.java:2726)
E/AndroidRuntime(14090): at io.flutter.view.AccessibilityBridge$SemanticsNode.getValueLabelHint(AccessibilityBridge.java:2695)
E/AndroidRuntime(14090): at io.flutter.view.AccessibilityBridge$SemanticsNode.access$3000(AccessibilityBridge.java:2172)
E/AndroidRuntime(14090): at io.flutter.view.AccessibilityBridge.createAccessibilityNodeInfo(AccessibilityBridge.java:816)
E/AndroidRuntime(14090): at android.view.AccessibilityInteractionController$AccessibilityNodePrefetcher.prefetchAccessibilityNodeInfos(AccessibilityInteractionController.java:1101)
E/AndroidRuntime(14090): at android.view.AccessibilityInteractionController.findAccessibilityNodeInfoByAccessibilityIdUiThread(AccessibilityInteractionController.java:342)
E/AndroidRuntime(14090): at android.view.AccessibilityInteractionController.access$400(AccessibilityInteractionController.java:75)
E/AndroidRuntime(14090): at android.view.AccessibilityInteractionController$PrivateHandler.handleMessage(AccessibilityInteractionController.java:1460)
E/AndroidRuntime(14090): at android.os.Handler.dispatchMessage(Handler.java:106)
E/AndroidRuntime(14090): at android.os.Looper.loop(Looper.java:233)
E/AndroidRuntime(14090): at android.app.ActivityThread.main(ActivityThread.java:7959)
E/AndroidRuntime(14090): at java.lang.reflect.Method.invoke(Native Method)
E/AndroidRuntime(14090): at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:631)
E/AndroidRuntime(14090): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:978)