private fun writeCloud(text: String): BitmapDrawable {
        // Draw bitmap
        val drawable = ContextCompat.getDrawable(context, R.drawable.ic_cloud)
        val bitmap = Bitmap.createBitmap(drawable?.intrinsicWidth ?: 68f.toPx.toInt(),
                drawable?.intrinsicHeight ?: 48f.toPx.toInt(), Bitmap.Config.ARGB_8888)
        val textPaint = TextPaint().apply {
            style = Paint.Style.FILL
            color = Color.BLACK
            flags = Paint.ANTI_ALIAS_FLAG
            xfermode = PorterDuffXfermode(PorterDuff.Mode.XOR)
            textSize = resources.getDimension(R.dimen.CloudSeekBar_thumbTextSize)
            typeface = Typeface.create(typeface, Typeface.BOLD)
        }
        val canvas = Canvas(bitmap)
        drawable?.setBounds(0, 0, canvas.width, canvas.height)
        drawable?.draw(canvas)

        // Draw text
        val bounds = canvas.clipBounds
        val textWidth = textPaint.measureText(text)
        canvas.drawText(text,
                bounds.centerX() - textWidth / 2f,
                (bitmap.height + resources.getDimensionPixelSize(R.dimen.CloudSeekBar_thumbHorizontalPadding)) / 2f,
                textPaint)

        return BitmapDrawable(resources, bitmap)
    }