Length called on Null ERROR about flutter_pagewise HOT 7 CLOSED

@AbdulRahmanAlHamali

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What line # did it point to? Posting part of the error stack would be handy. The line you highlighted appears to be a typo .. since it should be .length not .lenght ...

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error log

E/flutter (30454): Receiver: null
E/flutter (30454): Tried calling: length
E/flutter (30454): #0 Object.noSuchMethod (dart:core/runtime/libobject_patch.dart:50:5)
E/flutter (30454): #1 PagewiseLoadController.fetchNewPage
package:flutter_pagewise/flutter_pagewise.dart:475
E/flutter (30454):
E/flutter (30454): #2 PagewiseState._itemBuilder
package:flutter_pagewise/flutter_pagewise.dart:270
E/flutter (30454): #3 SliverChildBuilderDelegate.build
package:flutter/…/widgets/sliver.dart:398
E/flutter (30454): #4 SliverMultiBoxAdaptorElement._build.
package:flutter/…/widgets/sliver.dart:1002
E/flutter (30454): #5 _HashMap.putIfAbsent (dart:collection/runtime/libcollection_patch.dart:137:29)
E/flutter (30454): #6 SliverMultiBoxAdaptorElement._build
package:flutter/…/widgets/sliver.dart:1002
E/flutter (30454): #7 SliverMultiBoxAdaptorElement.createChild.
package:flutter/…/widgets/sliver.dart:1015
E/flutter (30454): #8 BuildOwner.buildScope
package:flutter/…/widgets/framework.dart:2253
E/flutter (30454): #9 SliverMultiBoxAdaptorElement.createChild
package:flutter/…/widgets/sliver.dart:1008
E/flutter (30454): #10 RenderSliverMultiBoxAdaptor._createOrObtainChild.

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Thanks for the logs -- very helpful! I'll see if I can take a look today or tomororw -- or if @KaYBlitZ wants to take a shot at it...

The first question is can I see the logic for the BackendService.getPosts()? It appears its possible for that Future to return a NULL .. where as PagewiseListView always expects a List/Array<> type thing -- even if empty ... although we should guard for that .. but is it possible you are returning a null value instead of an empty List / Array?

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I submitted a PR to fix this -- you can give it a whirl early by pointing your pubspec.yaml to my fork & the develop branch ...

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Fixed in latest release

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Fix confirmed

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