artyommironov/anyadapter

Forget about writing RecyclerView adapters!

AnyAdapter

Forget about writing RecyclerView adapters!

Install

How to install

Usage

Suppose you want to show multiple types of items in a RecyclerView, for example posts with headers and ads

1. Create classes extending AnyHolder for each item type

class PostHolder(
    parent: ViewGroup,
    onClick: (Post) -> Unit
) : AnyHolder<Post>(parent, R.layout.item) {
    private val textTitle = itemView.findViewById<TextView>(R.id.textTitle)

    init {
        textTitle.setOnClickListener { onClick(currentItem) }
    }

    override fun onBind(item: Post) {
        textTitle.text = item.message
    }
}

data class Post(val message: String)

2. Create AnyAdapter instance and attach holders to it

val adapter = AnyAdapter()
    .map { PostHolder(it, ::onPostClick) }
    .map { HeaderHolder(it) }
    .map { AdHolder(it) }

recyclerView.adapter = adapter

3. Put items inside the adapter. Done!

adapter.submitList(listOf("Header", Post("Hello!"), Post("Bye!"), Ad()))

License

Copyright 2022 Artyom Mironov

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.