IMoHaMeDHaMdYI

 val path = Path()
        val paint = Paint()


        paint.apply {
            strokeWidth = 20f
            style = Paint.Style.FILL
        }
        path.apply {
            moveTo(xCenter, yCenter)

IMoHaMeDHaMdYI

override fun onDraw(canvas: Canvas) {
        super.onDraw(canvas)
        val path = Path()
        path.apply {
            moveTo(shadowSize + cornerRadius, shadowSize + cornerRadius)
            arcTo(0f, 0f, shadowSize * 2 + 2 * cornerRadius, shadowSize * 2 + 2 * cornerRadius, 180f, 90f, false)
            moveTo(shadowSize + cornerRadius, shadowSize + cornerRadius)
            arcTo(shadowSize, shadowSize, shadowSize + 2 * cornerRadius, shadowSize + 2 * cornerRadius, 270f, -90f, false)
        }
        canvas.drawPath(path, radialGradientPaint)

IMoHaMeDHaMdYI

class CardView(context: Context, attributeSet: AttributeSet) : View(context, attributeSet) {

    private var outerWidth = 0f
    private var outerHeight = 0f
    private var xCenter = 0f
    private var yCenter = 0f
    private var cornerRadius = 10f
    private var shadowSize = 50f
    private val shadowStartColor = 0x20000000
    private val shadowEndColor = 0x00000000

IMoHaMeDHaMdYI

import androidx.lifecycle.LiveData
import androidx.lifecycle.MediatorLiveData
import kotlinx.coroutines.CoroutineScope
import kotlinx.coroutines.Job
import kotlinx.coroutines.delay
import kotlinx.coroutines.launch

fun <T> LiveData<T>.debounce(duration: Long = 1000L, coroutineScope: CoroutineScope) = MediatorLiveData<T>().also { mld ->

  val source = this