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  1. I/flutter ( 7268): ══╡ EXCEPTION CAUGHT BY WIDGETS LIBRARY ╞═══════════════════════════════════════════════════════════
  2. I/flutter ( 7268): The following assertion was thrown while finalizing the widget tree:
  3. I/flutter ( 7268): _AnimatedListViewItemState#bec5f(ticker active) was disposed with an active Ticker.
  4. I/flutter ( 7268): _AnimatedListViewItemState created a Ticker via its SingleTickerProviderStateMixin, but at the time
  5. I/flutter ( 7268): dispose() was called on the mixin, that Ticker was still active. The Ticker must be disposed before
  6. I/flutter ( 7268): calling super.dispose(). Tickers used by AnimationControllers should be disposed by calling
  7. I/flutter ( 7268): dispose() on the AnimationController itself. Otherwise, the ticker will leak.
  8. I/flutter ( 7268): The offending ticker was: Ticker(created by _AnimatedListViewItemState#bec5f(lifecycle state:
  9. I/flutter ( 7268): created))
  10. I/flutter ( 7268): The stack trace when the Ticker was actually created was:
  11. I/flutter ( 7268): #0      new Ticker.<anonymous closure>
  12. package:flutter/…/scheduler/ticker.dart:64
  13. I/flutter ( 7268): #1      new Ticker
  14. package:flutter/…/scheduler/ticker.dart:66
  15. I/flutter ( 7268): #2      __AnimatedListViewItemState&State&SingleTickerProviderStateMixin.createTicker
  16. I/flutter ( 7268): (package:flutter/src/widgets/ticker_provider.dart:93:15)
  17. I/flutter ( 7268): #3      new AnimationController
  18. package:flutter/…/animation/animation_controller.dart:245
  19. I/flutter ( 7268): #4      _AnimatedListViewItemState.initState
  20. package:listview/listview.dart:102
  21. I/flutter ( 7268): #5      StatefulElement._firstBuild
  22. package:flutter/…/widgets/framework.dart:4033
  23. I/flutter ( 7268): #6      ComponentElement.mount
  24. package:flutter/…/widgets/framework.dart:3902
  25. I/flutter ( 7268): #7      Element.inflateWidget
  26. package:flutter/…/widgets/framework.dart:3084
  27. I/flutter ( 7268): #8      Element.updateChild
  28. package:flutter/…/widgets/framework.dart:2887
  29. I/flutter ( 7268): #9      ComponentElement.performRebuild
  30. package:flutter/…/widgets/framework.dart:3935
  31. I/flutter ( 7268): #10     Element.rebuild
  32. package:flutter/…/widgets/framework.dart:3721
  33. I/flutter ( 7268): #11     ComponentElement._firstBuild
  34. package:flutter/…/widgets/framework.dart:3907
  35. I/flutter ( 7268): #12     StatefulElement._firstBuild
  36. package:flutter/…/widgets/framework.dart:4053
  37. I/flutter ( 7268): #13     ComponentElement.mount
  38. package:flutter/…/widgets/framework.dart:3902
  39. I/flutter ( 7268): #14     Element.inflateWidget
  40. package:flutter/…/widgets/framework.dart:3084
  41. I/flutter ( 7268): #15     Element.updateChild
  42. package:flutter/…/widgets/framework.dart:2887
  43. I/flutter ( 7268): #16     SingleChildRenderObjectElement.mount
  44. package:flutter/…/widgets/framework.dart:5092
  45. I/flutter ( 7268): #17     Element.inflateWidget
  46. package:flutter/…/widgets/framework.dart:3084
  47. I/flutter ( 7268): #18     Element.updateChild
  48. package:flutter/…/widgets/framework.dart:2887
  49. I/flutter ( 7268): #19     SingleChildRenderObjectElement.mount
  50. package:flutter/…/widgets/framework.dart:5092
  51. I/flutter ( 7268): #20     Element.inflateWidget
  52. package:flutter/…/widgets/framework.dart:3084
  53. I/flutter ( 7268): #21     Element.updateChild
  54. package:flutter/…/widgets/framework.dart:2887
  55. I/flutter ( 7268): #22     ComponentElement.performRebuild
  56. package:flutter/…/widgets/framework.dart:3935
  57. I/flutter ( 7268): #23     Element.rebuild
  58. package:flutter/…/widgets/framework.dart:3721
  59. I/flutter ( 7268): #24     ComponentElement._firstBuild
  60. package:flutter/…/widgets/framework.dart:3907
  61. I/flutter ( 7268): #25     ComponentElement.mount
  62. package:flutter/…/widgets/framework.dart:3902
  63. I/flutter ( 7268): #26     Element.inflateWidget
  64. package:flutter/…/widgets/framework.dart:3084
  65. I/flutter ( 7268): #27     Element.updateChild
  66. package:flutter/…/widgets/framework.dart:2887
  67. I/flutter ( 7268): #28     ComponentElement.performRebuild
  68. package:flutter/…/widgets/framework.dart:3935
  69. I/flutter ( 7268): #29     Element.rebuild
  70. package:flutter/…/widgets/framework.dart:3721
  71. I/flutter ( 7268): #30     ComponentElement._firstBuild
  72. package:flutter/…/widgets/framework.dart:3907
  73. I/flutter ( 7268): #31     ComponentElement.mount
  74. package:flutter/…/widgets/framework.dart:3902
  75. I/flutter ( 7268): #32     ParentDataElement.mount
  76. package:flutter/…/widgets/framework.dart:4279
  77. I/flutter ( 7268): #33     Element.inflateWidget
  78. I/flutter ( 7268): #34     Element.updateChild
  79. package:flutter/…/widgets/framework.dart:2887
  80. I/flutter ( 7268): #35     ComponentElement.performRebuild
  81. package:flutter/…/widgets/framework.dart:3935
  82. I/flutter ( 7268): #36     Element.rebuild
  83. package:flutter/…/widgets/framework.dart:3721
  84. I/flutter ( 7268): #37     ComponentElement._firstBuild
  85. package:flutter/…/widgets/framework.dart:3907
  86. I/flutter ( 7268): #38     StatefulElement._firstBuild
  87. package:flutter/…/widgets/framework.dart:4053
  88. I/flutter ( 7268): #39     ComponentElement.mount
  89. package:flutter/…/widgets/framework.dart:3902
  90. I/flutter ( 7268): #40     Element.inflateWidget
  91. package:flutter/…/widgets/framework.dart:3084
  92. I/flutter ( 7268): #41     Element.updateChild
  93. package:flutter/…/widgets/framework.dart:2887
  94. I/flutter ( 7268): #42     ComponentElement.performRebuild
  95. package:flutter/…/widgets/framework.dart:3935
  96. I/flutter ( 7268): #43     Element.rebuild
  97. package:flutter/…/widgets/framework.dart:3721
  98. I/flutter ( 7268): #44     ComponentElement._firstBuild
  99. package:flutter/…/widgets/framework.dart:3907
  100. I/flutter ( 7268): #45     ComponentElement.mount
  101. package:flutter/…/widgets/framework.dart:3902
  102. I/flutter ( 7268): #46     Element.inflateWidget
  103. package:flutter/…/widgets/framework.dart:3084
  104. I/flutter ( 7268): #47     Element.updateChild
  105. package:flutter/…/widgets/framework.dart:2887
  106. I/flutter ( 7268): #48     SliverMultiBoxAdaptorElement.updateChild
  107. package:flutter/…/widgets/sliver.dart:1181
  108. I/flutter ( 7268): #49     SliverMultiBoxAdaptorElement.createChild.<anonymous closure>
  109. I/flutter ( 7268): (package:flutter/src/widgets/sliver.dart:1166:20)
  110. I/flutter ( 7268): #50     BuildOwner.buildScope
  111. package:flutter/…/widgets/framework.dart:2320
  112. I/flutter ( 7268): #51     SliverMultiBoxAdaptorElement.createChild
  113. package:flutter/…/widgets/sliver.dart:1159
  114. I/flutter ( 7268): #52     RenderSliverMultiBoxAdaptor._createOrObtainChild.<anonymous closure>
  115. I/flutter ( 7268): (package:flutter/src/rendering/sliver_multi_box_adaptor.dart:354:23)
  116. I/flutter ( 7268): #53     RenderObject.invokeLayoutCallback.<anonymous closure>
  117. I/flutter ( 7268): (package:flutter/src/rendering/object.dart:1715:58)
  118. I/flutter ( 7268): #54     PipelineOwner._enableMutationsToDirtySubtrees
  119. I/flutter ( 7268): (package:flutter/src/rendering/object.dart:796:15)
  120. I/flutter ( 7268): #55     RenderObject.invokeLayoutCallback
  121. package:flutter/…/rendering/object.dart:1715
  122. I/flutter ( 7268): #56     RenderSliverMultiBoxAdaptor._createOrObtainChild
  123. I/flutter ( 7268): (package:flutter/src/rendering/sliver_multi_box_adaptor.dart:343:5)
  124. I/flutter ( 7268): #57     RenderSliverMultiBoxAdaptor.insertAndLayoutLeadingChild
  125. I/flutter ( 7268): (package:flutter/src/rendering/sliver_multi_box_adaptor.dart:459:5)
  126. I/flutter ( 7268): #58     RenderSliverList.performLayout
  127. package:flutter/…/rendering/sliver_list.dart:99
  128. I/flutter ( 7268): #59     RenderObject.layout
  129. package:flutter/…/rendering/object.dart:1619
  130. I/flutter ( 7268): #60     RenderSliverPadding.performLayout
  131. package:flutter/…/rendering/sliver_padding.dart:181
  132. I/flutter ( 7268): #61     RenderObject.layout
  133. package:flutter/…/rendering/object.dart:1619
  134. I/flutter ( 7268): #62     RenderViewportBase.layoutChildSequence
  135. package:flutter/…/rendering/viewport.dart:406
  136. I/flutter ( 7268): #63     RenderViewport._attemptLayout
  137. package:flutter/…/rendering/viewport.dart:1334
  138. I/flutter ( 7268): #64     RenderViewport.performLayout
  139. package:flutter/…/rendering/viewport.dart:1252
  140. I/flutter ( 7268): #65     RenderObject._layoutWithoutResize
  141. package:flutter/…/rendering/object.dart:1496
  142. I/flutter ( 7268): #66     PipelineOwner.flushLayout
  143. package:flutter/…/rendering/object.dart:765
  144. I/flutter ( 7268): #67
  145. I/flutter ( 7268): _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding&PaintingBinding&SemanticsBinding&RendererBinding.drawFrame
  146. I/flutter ( 7268): (package:flutter/src/rendering/binding.dart:346:19)
  147. I/flutter ( 7268): #68
  148. I/flutter ( 7268): _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding&PaintingBinding&SemanticsBinding&RendererBinding&WidgetsBinding.drawFrame
  149. I/flutter ( 7268): (package:flutter/src/widgets/binding.dart:701:13)
  150. I/flutter ( 7268): #69
  151. I/flutter ( 7268): _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding&PaintingBinding&SemanticsBinding&RendererBinding._handlePersistentFrameCallback
  152. I/flutter ( 7268): (package:flutter/src/rendering/binding.dart:285:5)
  153. I/flutter ( 7268): #70
  154. I/flutter ( 7268): _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding._invokeFrameCallback
  155. I/flutter ( 7268): (package:flutter/src/scheduler/binding.dart:1016:15)
  156. I/flutter ( 7268): #71
  157. I/flutter ( 7268): _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding.handleDrawFrame
  158. I/flutter ( 7268): (package:flutter/src/scheduler/binding.dart:958:9)
  159. I/flutter ( 7268): #72
  160. I/flutter ( 7268): _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding._handleDrawFrame
  161. I/flutter ( 7268): (package:flutter/src/scheduler/binding.dart:874:5)
  162. I/flutter ( 7268): #76     _invoke  (dart:ui/hooks.dart:236:10)
  163. I/flutter ( 7268): #77     _drawFrame  (dart:ui/hooks.dart:194:3)
  164. I/flutter ( 7268): (elided 3 frames from package dart:async)
  165. I/flutter ( 7268):
  166. I/flutter ( 7268):
  167. I/flutter ( 7268): When the exception was thrown, this was the stack:
  168. I/flutter ( 7268): #0      __AnimatedListViewItemState&State&SingleTickerProviderStateMixin.dispose.<anonymous closure>
  169. package:flutter/…/widgets/ticker_provider.dart:106
  170. I/flutter ( 7268): #1      __AnimatedListViewItemState&State&SingleTickerProviderStateMixin.dispose
  171. package:flutter/…/widgets/ticker_provider.dart:115
  172. I/flutter ( 7268): #2      StatefulElement.unmount
  173. package:flutter/…/widgets/framework.dart:4107
  174. I/flutter ( 7268): #3      _InactiveElements._unmount
  175. package:flutter/…/widgets/framework.dart:1737
  176. I/flutter ( 7268): #4      _InactiveElements._unmount.<anonymous closure>
  177. package:flutter/…/widgets/framework.dart:1735
  178. I/flutter ( 7268): #5      ComponentElement.visitChildren
  179. package:flutter/…/widgets/framework.dart:3955
  180. I/flutter ( 7268): #6      _InactiveElements._unmount
  181. package:flutter/…/widgets/framework.dart:1733
  182. I/flutter ( 7268): #7      _InactiveElements._unmount.<anonymous closure>
  183. package:flutter/…/widgets/framework.dart:1735
  184. I/flutter ( 7268): #8      SingleChildRenderObjectElement.visitChildren
  185. package:flutter/…/widgets/framework.dart:5080
  186. I/flutter ( 7268): #9      _InactiveElements._unmount
  187. package:flutter/…/widgets/framework.dart:1733
  188. I/flutter ( 7268): #10     _InactiveElements._unmount.<anonymous closure>
  189. package:flutter/…/widgets/framework.dart:1735
  190. I/flutter ( 7268): #11     SingleChildRenderObjectElement.visitChildren
  191. package:flutter/…/widgets/framework.dart:5080
  192. I/flutter ( 7268): #12     _InactiveElements._unmount
  193. package:flutter/…/widgets/framework.dart:1733
  194. I/flutter ( 7268): #13     _InactiveElements._unmount.<anonymous closure>
  195. package:flutter/…/widgets/framework.dart:1735
  196. I/flutter ( 7268): #14     ComponentElement.visitChildren
  197. package:flutter/…/widgets/framework.dart:3955
  198. I/flutter ( 7268): #15     _InactiveElements._unmount
  199. package:flutter/…/widgets/framework.dart:1733
  200. I/flutter ( 7268): #16     _InactiveElements._unmount.<anonymous closure>
  201. package:flutter/…/widgets/framework.dart:1735
  202. I/flutter ( 7268): #17     ComponentElement.visitChildren
  203. package:flutter/…/widgets/framework.dart:3955
  204. I/flutter ( 7268): #18     _InactiveElements._unmount
  205. package:flutter/…/widgets/framework.dart:1733
  206. I/flutter ( 7268): #19     _InactiveElements._unmount.<anonymous closure>
  207. package:flutter/…/widgets/framework.dart:1735
  208. I/flutter ( 7268): #20     ComponentElement.visitChildren
  209. package:flutter/…/widgets/framework.dart:3955
  210. I/flutter ( 7268): #21     _InactiveElements._unmount
  211. package:flutter/…/widgets/framework.dart:1733
  212. I/flutter ( 7268): #22     _InactiveElements._unmount.<anonymous closure>
  213. package:flutter/…/widgets/framework.dart:1735
  214. I/flutter ( 7268): #23     ComponentElement.visitChildren
  215. package:flutter/…/widgets/framework.dart:3955
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