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data class RGBA(var red: Long = 0, var green: Long = 0, var blue: Long = 0, var alpha: Double = 0.0)

fun main() {
	// rgba-order
	val base = RGBA(124, 77, 255, 0.06)
	val added = RGBA(255, 255, 255, 0.06)
    
	val mix = RGBA()
	// alpha
	mix.alpha = 1 - (1 - added.alpha) * (1 - base.alpha)

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Hexadecimal color code for transparency

How to set transparency with hex value ?

For example, you want to set 40% alpha transparence to #000000 (black color), you need to add 66 like this #66000000.

Download This sample on Google Play Store

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import android.os.Build
import android.security.KeyPairGeneratorSpec
import android.security.keystore.KeyGenParameterSpec
import android.security.keystore.KeyProperties
import android.util.Base64
import timber.log.Timber
import java.math.BigInteger
import java.security.GeneralSecurityException
import java.security.KeyPairGenerator
import java.security.KeyStore

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import android.content.SharedPreferences

/**
 * A [android.content.SharedPreferences] wrapper that helps easy reading/writing values.
 *
 * @author Francesco Jo([email protected])
 * @since 22 - Mar - 2018
 */
class SecureSharedPreferences(private val sharedPref: SharedPreferences) {
    fun contains(key: String) = sharedPref.contains(key)

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package com.andevapps.ontv.extension

import android.os.Parcel
import android.os.Parcelable
import androidx.work.Data
import java.io.*

fun Data.Builder.putParcelable(key: String, parcelable: Parcelable): Data.Builder {
    val parcel = Parcel.obtain()
    try {

yoonseopshin

import android.graphics.Canvas
import android.graphics.drawable.Drawable
import androidx.recyclerview.widget.RecyclerView

class ItemDecorationWithoutLastItem(private val divider: Drawable) : RecyclerView.ItemDecoration() {

    override fun onDrawOver(c: Canvas, parent: RecyclerView, state: RecyclerView.State) {
        super.onDrawOver(c, parent, state)
        val left = parent.paddingLeft
        val right = parent.width - parent.paddingRight

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fun <T> ComponentActivity.collectLatestLifecycleFlow(flow: Flow<T>, collect: suspend (T) -> Unit) {
    lifecycleScope.launch {
        repeatOnLifecycle(Lifecycle.State.STARTED) {
            flow.collectLatest(collect)
        }
    }
}

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class OnThrottleClickListener(
    private val dispatcher: CoroutineDispatcher,
    private val onClickListener: View.OnClickListener,
    private val interval: Long,
) : View.OnClickListener {

    private var isClickable = true

    override fun onClick(view: View) {
        if (isClickable) {

yoonseopshin

import android.content.SharedPreferences
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.GlobalScope
import kotlinx.coroutines.InternalCoroutinesApi
import kotlinx.coroutines.channels.Channel
import kotlinx.coroutines.flow.Flow
import kotlinx.coroutines.flow.FlowCollector
import kotlinx.coroutines.launch
import kotlinx.coroutines.withContext
import kotlin.properties.ReadWriteProperty

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# <type>: <subject>
##### Subject 50 characters ################# -> |


# Body Message
######## Body 72 characters ####################################### -> |

# Issue Tracker Number or URL

# --- COMMIT END ---