klukwist

class ClassicAdapter : RecyclerView.Adapter<ClassicHolder>() {

    private val viewModel = PersonItemViewModel()

    private val data: List<Person>
        get() = viewModel.data

    fun setData(persons: List<Person>) {
        viewModel.data = persons
        notifyDataSetChanged()

klukwist

class ClassicHolder(private val binding: ItemPersonBinding) : RecyclerView.ViewHolder(binding.root) {
    fun bind(viewModel: PersonItemViewModel, position: Int) {
        binding.setVariable(BR.viewModel, viewModel)
        binding.setVariable(BR.position, position)
        binding.executePendingBindings()
    }

    companion object {
        fun create(parent: ViewGroup): ClassicHolder {
            val inflater = LayoutInflater.from(parent.context)

klukwist

<?xml version="1.0" encoding="utf-8"?>
<layout>
    <data>
        <variable
            name="position"
            type="Integer" />

        <variable
            name="viewModel"
            type="plus.yeti.prostoadapter.ui.main.PersonItemViewModel" />

klukwist

class PersonItemViewModel : ProstoViewModel<Person>() {
    override var data: List<Person> = emptyList()

    fun getName(position: Int) = data[position].lastName + ", " + data[position].firstName
    fun getEmail(position: Int) = data[position].email
    fun hasDog(position: Int): Boolean = data[position].hasDog
}

klukwist

abstract class ProstoViewModel<T>: ViewModel() {
    abstract var data: List<T>
}

klukwist

open class ProstoHolder<TBinding : ViewDataBinding>(val binding: TBinding) : RecyclerView.ViewHolder(binding.root) {
    open fun <TData, TViewModel : ProstoViewModel<TData>> bind(viewModel: TViewModel, position: Int) {
        binding.setVariable(BR.viewModel, viewModel)
        binding.setVariable(BR.position, position)
        binding.executePendingBindings()
    }

    companion object {
        fun <TBinding : ViewDataBinding> create(parent: ViewGroup, layoutId: Int): ProstoHolder<TBinding> {
            val inflater = LayoutInflater.from(parent.context)

klukwist

abstract class ProstoAdapter<TBinding : ViewDataBinding, TData> : RecyclerView.Adapter<ProstoHolder<TBinding>>() {

    abstract val viewModel: ProstoViewModel<TData>
    abstract val layoutId: Int

    private var dataSize: Int = 0

    open fun setData(data: List<TData>) {
        this.dataSize = data.size
        viewModel.data = data

klukwist

class MainFragment : Fragment() {
    private val adapter =
        object : ProstoAdapter<ItemPersonBinding, Person>() {
            override val viewModel = PersonItemViewModel()
            override val layoutId = R.layout.item_person
        }

    override fun onActivityCreated(savedInstanceState: Bundle?) {
        super.onActivityCreated(savedInstanceState)
        mainRecyclerView.adapter = adapter

klukwist

sealed interface InstanceType<T> {
    fun interface Factory<T> : InstanceType<T> {
        fun build(): T
    }

    fun interface ParamFactory<T> : InstanceType<T> {
        fun build(vararg params: Any): T

        class Params {
            var parameters: Array<out Any> = arrayOf()

klukwist

module {
    singleton<A> { AImpl() }
    factory<B> {
        BImpl(
            a = get()
        )
    }
    factoryWithParams<C> { (aParam) ->
        C(
            a = aParam as A,