I/flutter (10005): 'package:flutter/src/services/text_editing.dart': Failed assertion: line 24 pos 15: 'start != null I/flutter (10005): && start >= -1': is not true. #16
Comments
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can‘t reproduce。 |
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and 4. platform |
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android or ios? |
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@zmtzawqlp both android and iOS |
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@CSystem please replace code for insertText method void insertText(String text) {
var value = _textEditingController.value;
var start = value.selection.baseOffset;
var end = value.selection.extentOffset;
if (value.selection.isValid) {
String newText = "";
if (value.selection.isCollapsed) {
if (end > 0) {
newText += value.text.substring(0, end);
}
newText += text;
if (value.text.length > end) {
newText += value.text.substring(end, value.text.length);
}
} else {
newText = value.text.replaceRange(start, end, text);
end = start;
}
_textEditingController.value = value.copyWith(
text: newText,
selection: value.selection.copyWith(
baseOffset: end + text.length, extentOffset: end + text.length));
}
}please check whether error has fixed,thanks |
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@zmtzawqlp If there is no focus, it will occurs the same error. |
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@CSystem i think， you can take care of it by your case， this is just demo. take care of selection |
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Sry,the error occurs at extended_text_field,not the extended_text.
flutter: Either the assertion indicates an error in the framework itself, or we should provide substantially
flutter: more information in this error message to help you determine and fix the underlying cause.
flutter: In either case, please report this assertion by filing a bug on GitHub:
flutter: https://github.com/flutter/flutter/issues/new?template=BUG.md
flutter:
flutter: When the exception was thrown, this was the stack:
flutter: #2 new TextRange
package:flutter/…/services/text_editing.dart:24
flutter: #3 new TextSelection
package:flutter/…/services/text_editing.dart:107
flutter: #4 ExtendedRenderEditable._getCaretOffset
package:extended_text_field/src/extended_render_editable.dart:1720
flutter: #5 ExtendedRenderEditable._updateSelectionExtentsVisibility
package:extended_text_field/src/extended_render_editable.dart:284
flutter: #6 ExtendedRenderEditable._paintContents
package:extended_text_field/src/extended_render_editable.dart:1886
flutter: #7 ExtendedRenderEditable.paint
package:extended_text_field/src/extended_render_editable.dart:1970
flutter: #8 RenderObject._paintWithContext
package:flutter/…/rendering/object.dart:2089
flutter: #9 PaintingContext.paintChild
package:flutter/…/rendering/object.dart:172
flutter: #10 _RenderProxyBox&RenderBox&RenderObjectWithChildMixin&RenderProxyBoxMixin.paint
package:flutter/…/rendering/proxy_box.dart:123
flutter: #11 RenderObject._paintWithContext
package:flutter/…/rendering/object.dart:2089
flutter: #12 PaintingContext.paintChild
package:flutter/…/rendering/object.dart:172
flutter: #13 _RenderProxyBox&RenderBox&RenderObjectWithChildMixin&RenderProxyBoxMixin.paint
package:flutter/…/rendering/proxy_box.dart:123
flutter: #14 PaintingContext.pushLayer
package:flutter/…/rendering/object.dart:369
flutter: #15 RenderLeaderLayer.paint
package:flutter/…/rendering/proxy_box.dart:4624
flutter: #16 RenderObject._paintWithContext
package:flutter/…/rendering/object.dart:2089
flutter: #17 PaintingContext.paintChild
package:flutter/…/rendering/object.dart:172
flutter: #18 _RenderProxyBox&RenderBox&RenderObjectWithChildMixin&RenderProxyBoxMixin.paint
package:flutter/…/rendering/proxy_box.dart:123
flutter: #19 RenderObject._paintWithContext
package:flutter/…/rendering/object.dart:2089
flutter: #20 PaintingContext.paintChild
package:flutter/…/rendering/object.dart:172
flutter: #21 _RenderProxyBox&RenderBox&RenderObjectWithChildMixin&RenderProxyBoxMixin.paint
package:flutter/…/rendering/proxy_box.dart:123
flutter: #22 RenderObject._paintWithContext
package:flutter/…/rendering/object.dart:2089
flutter: #23 PaintingContext.paintChild
package:flutter/…/rendering/object.dart:172
flutter: #24 _RenderProxyBox&RenderBox&RenderObjectWithChildMixin&RenderProxyBoxMixin.paint
package:flutter/…/rendering/proxy_box.dart:123
flutter: #25 RenderPointerListener.paint
package:flutter/…/rendering/proxy_box.dart:2669
flutter: #26 RenderObject._paintWithContext
package:flutter/…/rendering/object.dart:2089
flutter: #27 PaintingContext.paintChild
package:flutter/…/rendering/object.dart:172
flutter: #28 _RenderProxyBox&RenderBox&RenderObjectWithChildMixin&RenderProxyBoxMixin.paint
package:flutter/…/rendering/proxy_box.dart:123
flutter: #29 RenderPointerListener.paint
package:flutter/…/rendering/proxy_box.dart:2669
flutter: #30 RenderObject._paintWithContext
package:flutter/…/rendering/object.dart:2089
flutter: #31 PaintingContext.paintChild
package:flutter/…/rendering/object.dart:172
flutter: #32 _RenderProxyBox&RenderBox&RenderObjectWithChildMixin&RenderProxyBoxMixin.paint
package:flutter/…/rendering/proxy_box.dart:123
flutter: #33 RenderObject._paintWithContext
package:flutter/…/rendering/object.dart:2089
flutter: #34 PaintingContext._repaintCompositedChild
package:flutter/…/rendering/object.dart:127
flutter: #35 PaintingContext.repaintCompositedChild
package:flutter/…/rendering/object.dart:95
flutter: #36 PipelineOwner.flushPaint
package:flutter/…/rendering/object.dart:858
flutter: #37 _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding&PaintingBinding&SemanticsBinding&RendererBinding.drawFrame
package:flutter/…/rendering/binding.dart:348
flutter: #38 _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding&PaintingBinding&SemanticsBinding&RendererBinding&WidgetsBinding.drawFrame
package:flutter/…/widgets/binding.dart:701
flutter: #39 _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding&PaintingBinding&SemanticsBinding&RendererBinding._handlePersistentFrameCallback
package:flutter/…/rendering/binding.dart:285
flutter: #40 _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding._invokeFrameCallback
package:flutter/…/scheduler/binding.dart:1016
flutter: #41 _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding.handleDrawFrame
package:flutter/…/scheduler/binding.dart:958
flutter: #42 _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding._handleDrawFrame
package:flutter/…/scheduler/binding.dart:874
flutter: #46 _invoke (dart:ui/hooks.dart:236:10)
flutter: #47 _drawFrame (dart:ui/hooks.dart:194:3)
flutter: (elided 5 frames from class _AssertionError and package dart:async)
flutter:
flutter: The following RenderObject was being processed when the exception was fired: ExtendedRenderEditable#7c4a8 relayoutBoundary=up16:
flutter: creator: _Editable-[GlobalKey#9d3c9] ← Semantics ← CompositedTransformTarget ←
flutter: IgnorePointer-[GlobalKey#2fe7b] ← Semantics ← Listener ←
flutter: RawGestureDetector-[LabeledGlobalKey#e3c22] ← Listener ← _ScrollableScope
flutter: ← Scrollable ← ExtendedEditableText-[LabeledGlobalKey#5f881] ←
flutter: RepaintBoundary ← ⋯
flutter: parentData: (can use size)
flutter: constraints: BoxConstraints(w=373.0, 0.0<=h<=Infinity)
flutter: size: Size(373.0, 19.0)
flutter: cursorColor: Color(0x002196f3)
flutter: showCursor: ValueNotifier#e75a2(false)
flutter: maxLines: 1
flutter: minLines: null
flutter: selectionColor: Color(0xff90caf9)
flutter: textScaleFactor: 1.0
flutter: locale: en_US
flutter: selection: TextSelection(baseOffset: -1, extentOffset: -1, affinity: TextAffinity.downstream,
flutter: isDirectional: false)
flutter: offset: ScrollPositionWithSingleContext#ce7dd(offset: 0.0, range: 0.0..0.0, viewport: 373.0,
flutter: ScrollableState, BouncingScrollPhysics, IdleScrollActivity#c0c2e, ScrollDirection.idle)
flutter: This RenderObject had the following descendants (showing up to depth 5):
flutter: text: TextSpan
flutter: ImageSpan#19251
flutter: ════════════════════════════════════════════════════════════════════════════════════════════════════
Step:
Just click the button in the demo,it will input a ImageSpan(Emoji) to the textfield, then the error will occurs.
Platform:
extended_text_field: ^0.4.1
extended_text: ^0.6.3
flutter:1.7.8+hotfixed4
os:Android or iOS
extended_textfield_demo.zip
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