Weird duplication when new data are loaded on the List during the pagination

[castrojr913]

I made two classes in order to implement a pagination. Please, read these links for that purporse:

MyListAdapter AbstractListAdapter

However, when the list loads new data due to the pagination process, It duplicates an early item shown previously. I don't understand why, I have tried using notifyDataSetChanged, notifyItemChanged and so forth, and It has almost been imposible to fix.

ScreenShot

Note: As a second approach, I tried extending the class easyUltimateAdapter and, unfortunately, It threw a NullPointerException when I scrolled the list down. Therefore, I kept trying with the first implementation.

I apreciate your help. Thanks.

[jjhesk]

I see you have messed up the implementations on your code. You will have to pay attentions on getItemViewType and this applyLoadMoreAlignmentWorkaround. ViewTreeObserver need cause race condition. Its not good practice.