Kotlin-FrpStudy

map (Sodium) -> RxKotlin. Learn with a Book: "Reactive Functional Programming".

    override fun onViewCreated(v: View, savedInstanceState: Bundle?) {
       super.onViewCreated(v, savedInstanceState)
       
       /** frp spinner **/
       
       val value = BehaviorSubject.create<Int>().apply {
           this.map { i -> i.string }.subscribe(text_output.text())
       }
       val sPlusDelta  = button_plus.clicks().map { 1 }
       val sMinusDelta = button_minus.clicks().map { -1 }
       val sDelta = sPlusDelta.mergeWith(sMinusDelta)
       val sUpdate = sDelta.withLatestFrom(value,
               { delta, value_ -> delta + value_ })
       value.loop(sUpdate.hold(0))
       
   }

link of book for study frp

eng.
http://a.co/8rtUduO

jp.
http://amzn.to/2kFZhaJ

Using Library for FRP in this project

Sodium
https://github.com/SodiumFRP/sodium/

RxJava
https://github.com/ReactiveX/RxJava

RxBindig
https://github.com/JakeWharton/RxBinding

RxKotlin
https://github.com/ReactiveX/RxKotlin

Using others

• plugin : "Kotlin Android Extensions" for simplify code.
  https://kotlinlang.org/docs/tutorials/android-plugin.html