Rounded Corner ImageView - using Android Clipping, written in kotlin

RoundedImageView

class RoundedImageView @JvmOverloads constructor(
    context: Context,
    attrs: AttributeSet? = null,
    defStyleAttr: Int = 0
) : AppCompatImageView(
    context, attrs, defStyleAttr
) {

    private var rectF: RectF? = null
    private val path = Path()
    private val cornerRadius = 20f

    override fun onSizeChanged(w: Int, h: Int, oldw: Int, oldh: Int) {
        super.onSizeChanged(w, h, oldw, oldh)
        rectF = RectF(0f, 0f, w.toFloat(), h.toFloat())
        resetPath()
    }

    override fun draw(canvas: Canvas) {
        val save = canvas.save()
        canvas.clipPath(path)
        super.draw(canvas)
        canvas.restoreToCount(save)
    }

    override fun dispatchDraw(canvas: Canvas) {
        val save = canvas.save()
        canvas.clipPath(path)
        super.dispatchDraw(canvas)
        canvas.restoreToCount(save)
    }

    private fun resetPath() {
        path.reset()
        path.addRoundRect(rectF, cornerRadius, cornerRadius, Path.Direction.CW)
        path.close()
    }
}