Rekukler

Library for simplifications work with RecyclerView. Using this library removes the routine of writing Adapter and ViewHolder.

Gradle

Add it in your root build.gradle at the end of repositories:

allprojects {
  repositories {
    ...
    maven { url 'https://jitpack.io' }
  }
}

Add the dependency:

dependencies {
  implementation 'com.github.Rere-kt:Rekukler:${version}'
}

Usage

First, you need to declare ViewBinder.

fun articlesBinder(
    onClick: (Article) -> Unit = {}
) = viewBinder<Article, ListItemBinding>(
    layoutResId = R.layout.list_item,
    binder = ListItemBinding::bind,
    isForItem = { it is Article }, // optional, using with same Data Classes and multiple ViewBinder
    areItemsSame = { old, new -> old.id == new.id }, // optional, for DiffUtil
    areContentsSame = { old, new -> old == new }, // optional, for DiffUtil
) {
    bindView { data ->
          ...
          tvTitle.text = data.title
          tvPosition.text = getString(R.string.position, position)
          setOnClickListener { onClick.invoke(data) }
          ...
    }

    onDetachedFromWindow {
        println("on item detached from window")
    }

    onAttachedToWindow {
        println("on item attached to window")
    }
}

Now we can create MultibindingAdapter. This adapter can accept multiple ViewBinders as an argument.

private val articlesAdapter by lazy {
    MultiBindingAdapter(
        articlesBinder { println("Click from Article item") }
    )
}

Finally, we should configure our RecyclerView with created adapter using simple DSL.

binding.rvArticles.configure(articlesAdapter) {
      linearLayout {
          orientation = LinearLayout.VERTICAL
      }
      itemDecoration(
          MarginDividerItemDecoration(
              dividerLineWidth = 1.dip(resources),
              dividerLineMargin = 12.dip(resources),
              dividerLineColorRes = R.color.black
          )
      )
      itemTouchHelper()
  }

Also we can use configure extension with only adater. LinearLayout with vertical orientation will be used as default.

binding.rvArticles.configure(articlesAdapter)

Now, after configuration, we can update adapter items. Items will be accepted with DiffUtil(we can configure behaviour in ViewBinder with areItemsSame and areContentsTheSame lamdas.

articlesAdapter.items = newItems

You can see samples in repository. Thanks.

Contributions welcome!