Problem on version 1.7.2

[gustavomesquita]

First of all, congratulations for the great plugin.

I found a problem that happens only on version 1.7.2 when using functions showMaterialScrollPicker and showMaterialNumberPicker.

On previous versions that problem doesn't occurs.

Below you can see the error description from flutter terminal:

flutter: ══╡ EXCEPTION CAUGHT BY WIDGETS LIBRARY ╞═══════════════════════════════════════════════════════════ flutter: The following assertion was thrown building LayoutBuilder: flutter: Failed assertion: boolean expression must not be null flutter: flutter: The relevant error-causing widget was: flutter: LayoutBuilder flutter: file:///Users/macdev/Devtools/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_material_pickers-1.7.2/lib/pickers/scroll_picker.dart:62:12 flutter: flutter: When the exception was thrown, this was the stack: flutter: #0 _ScrollPickerState.build. (package:flutter_material_pickers/pickers/scroll_picker.dart:92:34) flutter: #1 _LayoutBuilderElement._layout. (package:flutter/src/widgets/layout_builder.dart:121:33) flutter: #2 BuildOwner.buildScope (package:flutter/src/widgets/framework.dart:2620:19) flutter: #3 _LayoutBuilderElement._layout (package:flutter/src/widgets/layout_builder.dart:117:11) flutter: #4 RenderObject.invokeLayoutCallback. (package:flutter/src/rendering/object.dart:1868:58) flutter: #5 PipelineOwner._enableMutationsToDirtySubtrees (package:flutter/src/rendering/object.dart:920:15) flutter: #6 RenderObject.invokeLayoutCallback (package:flutter/src/rendering/object.dart:1868:13) flutter: #7 RenderConstrainedLayoutBuilder.rebuildIfNecessary (package:flutter/src/widgets/layout_builder.dart:226:7) flutter: #8 _RenderLayoutBuilder.performLayout (package:flutter/src/widgets/layout_builder.dart:299:5) flutter: #9 RenderObject.layout (package:flutter/src/rendering/object.dart:1769:7) flutter: #10 RenderFlex.performLayout (package:flutter/src/rendering/flex.dart:827:17) flutter: #11 RenderObject.layout (package:flutter/src/rendering/object.dart:1769:7) flutter: #12 _RenderLayoutBuilder.performLayout (package:flutter/src/widgets/layout_builder.dart:301:13) flutter: #13 RenderObject.layout (package:flutter/src/rendering/object.dart:1769:7) flutter: #14 RenderConstrainedBox.performLayout (package:flutter/src/rendering/proxy_box.dart:270:13) flutter: #15 RenderObject.layout (package:flutter/src/rendering/object.dart:1769:7) flutter: #16 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:115:13) flutter: #17 RenderObject.layout (package:flutter/src/rendering/object.dart:1769:7) flutter: #18 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:115:13) flutter: #19 RenderObject.layout (package:flutter/src/rendering/object.dart:1769:7) flutter: #20 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:115:13) flutter: #21 _RenderCustomClip.performLayout (package:flutter/src/rendering/proxy_box.dart:1269:11) flutter: #22 RenderObject.layout (package:flutter/src/rendering/object.dart:1769:7) flutter: #23 RenderConstrainedBox.performLayout (package:flutter/src/rendering/proxy_box.dart:270:13) flutter: #24 RenderObject.layout (package:flutter/src/rendering/object.dart:1769:7) flutter: #25 RenderPositionedBox.performLayout (package:flutter/src/rendering/shifted_box.dart:396:13) flutter: #26 RenderObject.layout (package:flutter/src/rendering/object.dart:1769:7) flutter: #27 RenderPadding.performLayout (package:flutter/src/rendering/shifted_box.dart:209:11) flutter: #28 RenderObject.layout (package:flutter/src/rendering/object.dart:1769:7) flutter: #29 RenderPadding.performLayout (package:flutter/src/rendering/shifted_box.dart:209:11) flutter: #30 RenderObject.layout (package:flutter/src/rendering/object.dart:1769:7) flutter: #31 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:115:13) flutter: #32 RenderObject.layout (package:flutter/src/rendering/object.dart:1769:7) flutter: #33 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:115:13) flutter: #34 RenderObject.layout (package:flutter/src/rendering/object.dart:1769:7) flutter: #35 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:115:13) flutter: #36 RenderObject.layout (package:flutter/src/rendering/object.dart:1769:7) flutter: #37 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:115:13) flutter: #38 RenderObject.layout (package:flutter/src/rendering/object.dart:1769:7) flutter: #39 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:115:13) flutter: #40 RenderObject.layout (package:flutter/src/rendering/object.dart:1769:7) flutter: #41 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:115:13) flutter: #42 RenderObject.layout (package:flutter/src/rendering/object.dart:1769:7) flutter: #43 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:115:13) flutter: #44 RenderOffstage.performLayout (package:flutter/src/rendering/proxy_box.dart:3228:13) flutter: #45 RenderObject.layout (package:flutter/src/rendering/object.dart:1769:7) flutter: #46 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:115:13) flutter: #47 RenderObject.layout (package:flutter/src/rendering/object.dart:1769:7) flutter: #48 _RenderTheatre.performLayout (package:flutter/src/widgets/overlay.dart:702:15) flutter: #49 RenderObject._layoutWithoutResize (package:flutter/src/rendering/object.dart:1632:7) flutter: #50 PipelineOwner.flushLayout (package:flutter/src/rendering/object.dart:889:18) flutter: #51 RendererBinding.drawFrame (package:flutter/src/rendering/binding.dart:404:19) flutter: #52 WidgetsBinding.drawFrame (package:flutter/src/widgets/binding.dart:867:13) flutter: #53 RendererBinding._handlePersistentFrameCallback (package:flutter/src/rendering/binding.dart:286:5) flutter: #54 SchedulerBinding._invokeFrameCallback (package:flutter/src/scheduler/binding.dart:1117:15) flutter: #55 SchedulerBinding.handleDrawFrame (package:flutter/src/scheduler/binding.dart:1056:9) flutter: #56 SchedulerBinding._handleDrawFrame (package:flutter/src/scheduler/binding.dart:972:5) flutter: #60 _invoke (dart:ui/hooks.dart:253:10) flutter: #61 _drawFrame (dart:ui/hooks.dart:211:3) flutter: (elided 3 frames from dart:async) flutter: flutter: ═══════════════════════════════════════════════════════════════════════════════

[codegrue]

Fixed in 1.7.3

[gustavomesquita]

Thanks man!