Use RecyclerView custom LayoutManager about conference-app-2017

[eneim]

@konifar Your concern makes sense. I'm also investigating its flexibility. Right now what I can see is the library's concept is to use 3 RecyclerViews to mimic the Excel sheet UI, and it is un-cleared if it can be diagonally scrolled, so it may not fit our usecase 100%. Let's look further into it and see if we can adapt and have a better implementation.

[eneim]

@konifar Did you try this one: https://github.com/zhouchaoyuan/excelPanel , looks promise ...

[konifar]

@eneim Thanks! I didn't know that!
Have you ever tasted this library?

[eneim]

@konifar Suppose to do it right now. If it works well I will have further notice (a PR maybe )

[konifar]

@eneim Cool 🆒 Thanks! I'm looking forward to. I also take a look the code of the library 😃

[eneim]

@konifar Also reading the code too. It looks like he use more than one Adapter to make thing done. But let see if it provides better performance than current implementation.

[konifar]

I see. BTW, my concerns are below.

1. Can this lib combine cells vertically/horizontally?
2. Can this lib take scrolling diagonally?
3. Can this lib customize item layout?