sys1yagi’s gists

sys1yagi / Main.kt

Last active May 17, 2019 01:19

Observation of state change of View by Flow

	// in Activity
	override fun onCreate(savedInstanceState: Bundle?) {
	super.onCreate(savedInstanceState)
	lifecycleScope.launchWhenCreated {
	editNickName.textChangeAsFlow()
	.map { it?.isNotEmpty() ?: false }
	.collect {
	sendButton.isEnabled = it
	}
	}

sys1yagi / intent.kt

Last active February 28, 2019 23:25

	// deprecatedだけど新しいのは API 23からなので仕方ない
	val intent = AccountManager.newChooseAccountIntent(
	null,
	null,
	arrayOf("com.google"),
	true,
	null,
	null,
	null,
	null

sys1yagi / coroutine_statemachine.kt

Last active August 18, 2018 07:25

	fun delay(delayTime: Long, stateMachine: StateMachine) {
	Thread.sleep(delayTime)
	stateMachine.resume()
	}

	class StateMachine {
	var state = 0
	var start = 0L
	fun resume() {
	when (state) {

sys1yagi / WorkerService.kt

Created June 29, 2018 01:37


	import android.app.IntentService
	import android.content.Context
	import android.content.Intent
	import android.os.Bundle
	import androidx.work.Data
	import androidx.work.OneTimeWorkRequest
	import androidx.work.WorkManager
	import androidx.work.Worker

sys1yagi / EditTextChannel.kt

Last active June 18, 2018 09:33

	import android.text.Editable
	import android.text.TextWatcher
	import android.widget.EditText
	import kotlinx.coroutines.experimental.channels.Channel
	import kotlinx.coroutines.experimental.channels.ReceiveChannel
	import kotlinx.coroutines.experimental.channels.sendBlocking
	import kotlinx.coroutines.experimental.launch

	object EditTextChannel {
	fun empty(editText: EditText): ReceiveChannel<Boolean> = ConflatedChannel<Boolean>().apply {

sys1yagi / StateLiveData.kt

Created December 13, 2017 02:30

	class StateLiveData<T> : MutableLiveData<T>() {
	override fun onInactive() {
	super.onInactive()
	value = null
	}
	}

sys1yagi / actor_fizzbuzz.kt

Last active December 3, 2017 07:47

Implement fizzbuzz with actor of kotlin coroutine.

	class Value(val value: Int, var output: String = "")

	fun rule(seed: Int, print: String, next: SendChannel<Value>) = actor<Value> {
	for (value in channel) {
	next.send(value.apply {
	if (value.value % seed == 0) {
	this.output += print
	}
	})
	}

sys1yagi / ide.kt

Created August 22, 2017 09:03

	fun shouldOpenShop(shopId: Long): Boolean {
	if( shopId <= 0L ){
	return false
	}
	if( this.shop == null ) {
	return false
	}
	if( this.shop.id == shopId ) { // これを return this.shop.id == shopId にしろって言われる
	return false
	}

sys1yagi / coroutine_extensions.kt

Last active June 23, 2017 07:01

	fun <T> async(context: CoroutineContext = CommonPool, start: CoroutineStart = CoroutineStart.DEFAULT, block: suspend CoroutineScope.() -> T)
	= kotlinx.coroutines.experimental.async(context, start, block)

	fun ui(start: CoroutineStart = CoroutineStart.DEFAULT, block: suspend CoroutineScope.() -> Unit)
	= launch(UI, start, block)

	suspend fun <T, U> parallel(c1: suspend CoroutineScope.() -> T, c2: suspend CoroutineScope.() -> U): Pair<T, U> {
	val c1Job = async(block = c1)
	val c2Job = async(block = c2)
	return Pair(c1Job.await(), c2Job.await())

sys1yagi / request.md

Created June 22, 2017 04:31

    @startuml

start

if (Have an access token?) then (yes)
else (no)
  if (Have an refresh token?) then (yes)
    while (Request access token) is (error)
 if (retry?) then (yes)

  

Toshihiro Yagi sys1yagi