Added size check control

[rifatdover]

On replace update null check done but did not chek if the new size equals to 0.

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[rifatdover]

I signed it!

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CLAs look good, thanks!

[rifatdover]

@yigit Can you check this?

[amrro]

I guess you intiate the adapter with data after creating it. So, what if you got no data from the api, or want to clear the recycler?

[rifatdover]

Forgive me if I have a lack of knowledge but I can not understand the relation between your question and the thing I do? What is made inside adapter is passing an update data to the adapter. If api or JsonMapping creates an object list with 0 items adapter will cause crash. And if we come to your question I will pass null or an object with 0 items and it will work. @amrro