WidgetExtensions.kt

fun Context.textAsBitmap(
    text: String,
    fontSize: TextUnit,
    color: Color = Color.Black,
    letterSpacing: Float = 0.1f,
    font: Int
): Bitmap {
    val paint = TextPaint(Paint.ANTI_ALIAS_FLAG)
    paint.textSize = spToPx(fontSize.value, this)
    paint.color = color.toArgb()
    paint.letterSpacing = letterSpacing
    paint.typeface = ResourcesCompat.getFont(this, font)

    val baseline = -paint.ascent()
    val width = (paint.measureText(text)).toInt()
    val height = (baseline + paint.descent()).toInt()
    val image = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888)
    val canvas = Canvas(image)
    canvas.drawText(text, 0f, baseline, paint)
    return image
}