EmmanuelGuther

fun TextView.afterTextChangedDelayed(afterTextChanged: (String) -> Unit) {
    this.addTextChangedListener(object : TextWatcher {
        var timer: CountDownTimer? = null

        override fun beforeTextChanged(p0: CharSequence?, p1: Int, p2: Int, p3: Int) {
        }

        override fun onTextChanged(p0: CharSequence?, p1: Int, p2: Int, p3: Int) {
        }

EmmanuelGuther

/** USAGE -> ('a'..'z').randomString(6) */
fun ClosedRange<Char>.randomString(lenght: Int) =
        (1..lenght)
                .map { (Random().nextInt(endInclusive.toInt() - start.toInt()) + start.toInt()).toChar() }
                .joinToString("")



editTextRegisterStepThreeUserName.setText(('a'..'z').randomString(6))

EmmanuelGuther

listFoo?.singleOrNull { it.id == "oooo" }.let {it...}

EmmanuelGuther

long lastYear =     1407869895000L; // August 12, 2014, 8:58PM
long before =       1439405895000L; // August 12, 2015, 8:58PM
long now =          1442343495000L; // September 15, 2015, 8:58PM

// August 12 – September 15 (default)
DateUtils.formatDateRange(this, before, now, 0);

// August 12, 8:58PM – September 15, 8:58PM (with time)
DateUtils.formatDateRange(this, before, now, DateUtils.FORMAT_SHOW_TIME);

EmmanuelGuther

fun example(){




Glide.with(context)
    .load(items[position])
    .apply(RequestOptions()
        .placeholder(R.drawable.animated_loading_icon)
    )

EmmanuelGuther

val selectedSubcategories = selectedCategories.asSequence().map { it?.subCategories }.fold(mutableSetOf<SubCategoryModel>()) { acc, list ->
                list?.asSequence()?.filter { it.checked }?.map { acc.add(it) }?.toList()
                acc
            }
            val subcategoriesJoined = selectedSubcategories.asSequence().map { it.name }.joinToString(separator = " • ")
            editTextProfessionalRegisterCategories.setText(subcategoriesJoined)

EmmanuelGuther

 <androidx.constraintlayout.widget.ConstraintLayout
        android:id="@+id/layoutHeaderNavView"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="?attr/selectableItemBackground"
        android:clickable="true"
        android:focusable="true">

EmmanuelGuther

    private fun printKeyHash() {
        try {
            val info = activity?.packageManager?.getPackageInfo("com.s", PackageManager.GET_SIGNATURES)
            for (signature in info!!.signatures!!) {
                val md = MessageDigest.getInstance("SHA")
                md.update(signature.toByteArray())
                Log.d("KeyHash:", Base64.encodeToString(md.digest(), Base64.DEFAULT))
            }
        } catch (e: PackageManager.NameNotFoundException) {

EmmanuelGuther

values-sw720dp          10.1” tablet 1280x800 mdpi

values-sw600dp          7.0”  tablet 1024x600 mdpi

values-sw480dp          5.4”  480x854 mdpi 
values-sw480dp          5.1”  480x800 mdpi 

values-xxhdpi           5.5"  1080x1920 xxhdpi
values-xxxhdpi           5.5" 1440x2560 xxxhdpi

EmmanuelGuther

fun View.changeColorAnimatedly(duration: Long, repeatable: Boolean, startColor: Int, endColor: Int) {
    val anim = ObjectAnimator.ofInt(this, "backgroundColor", startColor, endColor)
    anim.duration = duration
    anim.setEvaluator(ArgbEvaluator())
    if (repeatable) {
        anim.repeatCount = ValueAnimator.INFINITE
        anim.repeatMode = ValueAnimator.REVERSE
    }
    anim.start()
}