Flutter component concept created with Flutter using Dart programming language, inspired by Gooey Rab Bar.
When i press the + button, error occur as follow, any help?:
flutter: #3 AnimationController._tick
package:flutter/…/animation/animation_controller.dart:765
flutter: #4 Ticker._tick
package:flutter/…/scheduler/ticker.dart:228
flutter: #5 _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding._invokeFrameCallback
package:flutter/…/scheduler/binding.dart:1012
flutter: #6 _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding.handleBeginFrame.
package:flutter/…/scheduler/binding.dart:928
flutter: #7 __InternalLinkedHashMap&_HashVMBase&MapMixin&_LinkedHashMapMixin.forEach (dart:collection-patch/compact_hash.dart:367:8)
flutter: #8 _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding.handleBeginFrame
package:flutter/…/scheduler/binding.dart:926
flutter: #9 _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding._handleBeginFrame
package:flutter/…/scheduler/binding.dart:856
flutter: #13 _invoke1 (dart:ui/hooks.dart:250:10)
flutter: #14 _beginFrame (dart:ui/hooks.dart:177:3)
flutter: (elided 3 frames from package dart:async)
flutter:
flutter: The AnimationController notifying listeners was:
flutter: AnimationController#b667e(▶ 0.000)
flutter: ════════════════════════════════════════════════════════════════════════════════════════════════════
flutter: Another exception was thrown: NoSuchMethodError: The getter 'value' was called on null.
flutter: Another exception was thrown: NoSuchMethodError: The getter 'value' was called on null.
flutter: Another exception was thrown: NoSuchMethodError: The getter 'value' was called on null.
flutter: Another exception was thrown: NoSuchMethodError: The getter 'value' was called on null.
flutter: Another exception was thrown: NoSuchMethodError: The getter 'value' was called on null.
flutter: Another exception was thrown: NoSuchMethodError: The getter 'value' was called on null.
flutter: Another exception was thrown: NoSuchMethodError: The getter 'value' was called on null.
flutter: Another exception was thrown: NoSuchMethodError: The getter 'value' was called on null.
flutter: Another exception was thrown: NoSuchMethodError: The getter 'value' was called on null.
flutter: Another exception was thrown: NoSuchMethodError: The getter 'value' was called on null.
flutter: Another exception was thrown: NoSuchMethodError: The getter 'value' was called on null.
flutter: Another exception was thrown: NoSuchMethodError: The getter 'value' was called on null.
flutter: Another exception was thrown: NoSuchMethodError: The getter 'value' was called on null.
[VERBOSE-2:ui_dart_state.cc(148)] Unhandled Exception: NoSuchMethodError: The method 'addListener' was called on null.
Receiver: null
Tried calling: addListener(Closure: () => Null)
#0 Object.noSuchMethod (dart:core-patch/object_patch.dart:50:5)
#1 _MenuTabBar._moveButtonDown.
package:menu_tabbar/components/menu_tab_bar.dart:137
#2 _rootRun (dart:async/zone.dart:1120:38)
#3 _CustomZone.run (dart:async/zone.dart:1021:19)
#4 _FutureListener.handleWhenComplete (dart:async/future_impl.dart:150:18)
#5 Future._propagateToListeners.handleWhenCompleteCallback (dart:async/future_impl.dart:609:39)
#6 Future._propagateToListeners (dart:async/future_impl.dart:665:37)
#7 Future._completeWithValue (dart:async/future_impl.dart:483:5)
#8 Future._asyncComplete. (dart:async/future_impl.dart:513:7)
#9 _rootRun (dart:async/zone.dart:1124:13)
#10 _CustomZone.run (dart:async/zone.dart:1021:19)
#11 _CustomZone.runGuarded (d<…>
[VERBOSE-2:ui_dart_state.cc(148)] Unhandled Exception: NoSuchMethodError: The method 'addListener' was called on null.
Receiver: null
Tried calling: addListener(Closure: () => Null)
#0 Object.noSuchMethod (dart:core-patch/object_patch.dart:50:5)
#1 _MenuTabBar._moveButtonUp.
package:menu_tabbar/components/menu_tab_bar.dart:148
#2 _rootRun (dart:async/zone.dart:1120:38)
#3 _CustomZone.run (dart:async/zone.dart:1021:19)
#4 _FutureListener.handleWhenComplete (dart:async/future_impl.dart:150:18)
#5 Future._propagateToListeners.handleWhenCompleteCallback (dart:async/future_impl.dart:609:39)
#6 Future._propagateToListeners (dart:async/future_impl.dart:665:37)
#7 Future._completeWithValue (dart:async/future_impl.dart:483:5)
#8 Future._asyncComplete. (dart:async/future_impl.dart:513:7)
#9 _rootRun (dart:async/zone.dart:1124:13)
#10 _CustomZone.run (dart:async/zone.dart:1021:19)
#11 _CustomZone.runGuarded (dar<…>
Do you have any plan to release with pubspec?
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