😃

Emmanuel G EmmanuelGuther

😃

Android developer

EmmanuelGuther / callbackInsideFunction.kt

Last active January 24, 2020 13:32

	companion object {
	var callbackLoadMore: ((Int) -> Unit)? = null
	var callbackLikeClick: ((Promotion) -> Unit)? = null
	fun forPage(callbackLoadMore: (Int) -> Unit, callbackLikeClick: (Promotion) -> Unit): ShowcasePageOneFragment {
	this.callbackLoadMore = callbackLoadMore
	this.callbackLikeClick = callbackLikeClick
	return ShowcasePageOneFragment()
	}
	}

EmmanuelGuther / ConstraintLayoutGroupClickListener.kt

Created February 19, 2020 07:50

Add listener to all views in constraintlayout group

	fun Group.addOnClickListener(listener: (view: View) -> Unit) {
	referencedIds.forEach { id ->
	rootView.findViewById<View>(id).setOnClickListener(listener)
	}
	}

EmmanuelGuther / FunctionAsParameterThatInTurnReceivesParameter.kt

Last active February 21, 2020 21:05

Kotlin Higher-Order Function -- pass a function as a parameter that in turn receives a parameter

	fun launchEmail(activity: FragmentActivity, subject: String, text: String) {
	val i = Intent(Intent.ACTION_SEND)
	i.type = "message/rfc822"
	i.putExtra(Intent.EXTRA_SUBJECT, subject)
	i.putExtra(Intent.EXTRA_TEXT, text)
	try {
	activity.startActivity(Intent.createChooser(i, "Send mail..."))
	} catch (ex: android.content.ActivityNotFoundException) {
	Toast.makeText(activity, "There are no email clients installed.", Toast.LENGTH_SHORT).show()
	}

EmmanuelGuther / RecomendedImageSizesForMobile.md

Last active July 10, 2020 20:10

How should an image url be in the api? Well it should be an object of urls images not just a url recommended image dimensions for mobile app

How should an image url be in the api? Well it should be an object of urls images not just a url, so we can have different sizes.

Thumb (~32x48) /images/xs/1-a-bomb.jpg

Small (~160x240) /images/sm/1-a-bomb.jpg

Medium (~320x480) /images/md/1-a-bomb.jpg

EmmanuelGuther / PublicApis.md

Last active August 22, 2020 10:43

EmmanuelGuther / single

Last active October 26, 2020 06:51

EmmanuelGuther / married

Created October 26, 2020 06:52

EmmanuelGuther / RecyclerView.onEndScrollListener.kt

Created January 26, 2021 11:21

	fun RecyclerView.onEndScrollListener(listener:()->Unit){
	this.addOnScrollListener(object : RecyclerView.OnScrollListener() {
	override fun onScrollStateChanged(recyclerView: RecyclerView, newState: Int) {
	super.onScrollStateChanged(recyclerView, newState)
	if (!recyclerView.canScrollVertically(1) && newState == RecyclerView.SCROLL_STATE_IDLE) {
	listener()
	}
	}
	})
	}

EmmanuelGuther / dataClassCleanWithExtensions.kt

Created February 2, 2021 07:14

Data class more clean with extensions

	data class Result(
	val requestCode: Int,
	val data: Intent?,
	)
	val Result.isOk: Boolean
	get() = resultCode == Activity.RESULT_OK

EmmanuelGuther / suspendReturnInsideListener.kt

Created February 9, 2021 07:06

	private suspend fun getToken(foo: String): String? = suspendCoroutine { continuation ->
	val fooToken = tokenApiExample.Token(foo).start
	fooToken.onCreateTokenListener { data ->
	when {
	data.has("id") -> {
	val token = data.getString("id")
	continuation.resume(token)
	}
	else -> {
	continuation.resume(null)