Hello,
I appreciate your sample code. However, the onLayoutChildren() method you made is very convoluted. It is 226 lines of spaghetti code! I am wondering if there is any way to simplify this method. I would be happy to contribute if you give me some guidance here. Sorry, I am just a beginner with RecyclerViews.

You can add or I can make a pull request for item decorator
there is one in the sample:
android-sdk\extras\android\support\samples\Support7Demos\src\com\example\android\supportv7\widget\decorator

I must have removed about 12 and it crashed

maybe it has to do with clicking fast - and clicking on an empty space before the animation moves a new item into the spot?

FATAL EXCEPTION: main
Process: com.antonioleiva.recycledviewextensions.app, PID: 9537
java.lang.ArrayIndexOutOfBoundsException: length=27; index=-1
at java.util.ArrayList.remove(ArrayList.java:405)
at com.antonioleiva.recycledviewextensions.example.MyRecyclerAdapter.remove(MyRecyclerAdapter.java:58)
at com.antonioleiva.recycledviewextensions.example.MainActivity$1.onItemClick(MainActivity.java:34)
at com.antonioleiva.recycledviewextensions.example.MainActivity$1.onItemClick(MainActivity.java:32)
at com.antonioleiva.recycledviewextensions.example.MyRecyclerAdapter.onClick(MyRecyclerAdapter.java:47)
at android.view.View.performClick(View.java:4598)

related to this Android Studio issue: https://code.google.com/p/android/issues/detail?id=72389

My solution was to create a empty project and copy over the gradle folder tree so that it was parallel to the app tree. Then I could use Project Import in Android Studio.

It seems to have a lot of compilation errors, saying that the classes you use cannot be found.
I've tried to set the minSdk&targetSdk to 20 or "L" , and none helped.

I've noticed you used things from the support library, but I can't see it knowing what are the classes you've used.

Maybe I'm missing something?

I am implementing an Android App in which recyclerview is used.

I am getting five JsonArrays from Api and setting the five views with respective headers of their but when all five JsonArrays are coming it is working awsome. But problem comes when there is not one or more JsonArray.

What I want is that if there will not be one JsonArray then the Header of that should be there but as data is not there for that so the item should not shown and Header should be visible.

Now what is happening is out of five JsonArrays I am getting only 4 so the one which is not coming automatically view is assigned to it and the data of one item from another Json array is shown that thing I don't want in my app.

Is this possible in recyclerview ? Please revert asap.

You can check out this project to add custom animator

https://github.com/evant/recyclerview-sample