longv

fun <T> LifecycleOwner.lifecycleAwareLazy(initializer: () -> T): Lazy<T> = LifecycleAwareLazy(this, initializer)

private object UninitializedValue

class LifecycleAwareLazy<out T>(
  private val owner: LifecycleOwner,
  initializer: () -> T
) : Lazy<T>, Serializable, LifecycleObserver {

  private var initializer: (() -> T)? = initializer

longv

class MainActivity {

  // ...
  
  private val viewModel by viewModels { viewModelFactory }
  
  private lateinit var adapter: DataBindingAdapter
  
  override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)

longv

fun debugSubscribeOn(): Disposable =
  Observable.just(1)
    .doOnNext {
      println(Thread.currentThread().name) // RxCachedThreadScheduler-1
    }
    .subscribeOn(Schedulers.io())
    .flatMap {
      println(Thread.currentThread().name) // RxCachedThreadScheduler-1
      Observable.just(it)
        .doOnNext {

longv

fun debugSubscribeOn(): Disposable =
  Observable.just(1)
    .doOnNext {
      println(Thread.currentThread().name) // RxCachedThreadScheduler-1
    }
    .subscribeOn(Schedulers.io())
    .flatMap {
      println(Thread.currentThread().name) // RxCachedThreadScheduler-1
      Observable.just(it)
        .subscribeOn(Schedulers.computation())

longv

fun debugSubscribeOn(): Disposable =
  Observable.just(1, 2, 3)
    .doOnNext {
      println(Thread.currentThread().name) // RxCachedThreadScheduler-1
    }
    .subscribeOn(Schedulers.io())
    .subscribeOn(Schedulers.computation())
    .doOnNext {
      println(Thread.currentThread().name) // RxCachedThreadScheduler-1
    }

longv

fun debugSubscribeOn(): Disposable =
  Observable.just(1, 2, 3)
    .doOnNext {
      println(Thread.currentThread().name) // RxCachedThreadScheduler-1
    }
    .subscribeOn(Schedulers.io())
    .doOnNext {
      println(Thread.currentThread().name) // RxCachedThreadScheduler-1
    }
    .subscribe()

longv

<?xml version="1.0" encoding="utf-8"?>
<layout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    xmlns:app="http://schemas.android.com/apk/res-auto">
    <data>
        <variable
            name="listModel"
            type="androidx.lifecycle.LiveData&lt;me.longv.pokedex.databinding.RecyclerViewModel>"/>
    </data>

longv

package me.longv.pokedex.databinding

import androidx.databinding.BindingAdapter
import androidx.recyclerview.widget.RecyclerView

@BindingAdapter(value = ["model"])
fun setupRecyclerView(view: RecyclerView, model: RecyclerViewModel?) {
    model?.apply {
        view.adapter = DataBindingAdapter(bindingEntries)
        view.layoutManager = layoutManager

longv

class DataBindingAdapter(private var bindingEntries: List<DataBindingEntry> = emptyList())
: RecyclerView.Adapter<DataBindingViewHolder>() {
    
  override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): DataBindingViewHolder {
    val layoutInflater = LayoutInflater.from(parent.context)
    val viewBinding = DataBindingUtil.inflate<ViewDataBinding>(layoutInflater, viewType, parent, false)
    return DataBindingViewHolder(viewBinding)
  }

  override fun onBindViewHolder(holder: DataBindingViewHolder, position: Int) {

longv

class DataBindingViewHolder(private val viewBinding: ViewDataBinding): RecyclerView.ViewHolder(viewBinding.root) {
  
  fun bind(bindingEntry: DataBindingEntry) {
    viewBinding.apply {
      bindingEntry.bindings.forEach { setVariable(it.key, it.value) }
    }
  }
}