Draw avatar plcaholder and save to cache dir. Need no permissions

PlaceholderController.kt

fun drawTextToBitmapOrGetCache(context: Context, text: String, @ColorRes textColor: Int, @ColorRes backgroundColor: Int, textSize: Float = 33f): Bitmap? {
	val name = "${text}_image"
	val file = File(context.cacheDir, name)
	Log.d("CACHE_IMAGE", "${file.exists()} $name ${file.absolutePath}")

	return if (file.exists()) {
		getNamePlaceholderFromCache(file)
	} else {
		val namePlaceholderBitmap = drawTextToBitmap(context, text, textColor, backgroundColor, textSize)
		writeNamePlaceholderToCache(file, namePlaceholderBitmap)
		namePlaceholderBitmap
	}
}

fun getNamePlaceholderFromCache(file: File): Bitmap {
	val options = BitmapFactory.Options()
	options.inPreferredConfig = Bitmap.Config.ARGB_8888 
	Log.d("CACHE_IMAGE_GET", file.absolutePath)
	return BitmapFactory.decodeFile(file.absolutePath, options)
}

fun writeNamePlaceholderToCache(file: File, bitmap: Bitmap) {
	try {
		val outputStream = FileOutputStream(file)
		bitmap.compress(Bitmap.CompressFormat.JPEG, 90, outputStream)
		outputStream.flush()
		outputStream.close()
		Log.d("CACHE_IMAGE_WRITE", file.absolutePath)
	}catch(e: Exception){
		e.printStackTrace()
	}
}

fun drawTextToBitmap(context: Context, text: String, @ColorRes textColor: Int, @ColorRes backgroundColor: Int, textSize: Float = 33f): Bitmap {
	val size = context.resources.getDimensionPixelSize(R.dimen.helpcrunch_icon_message_size)
	var bitmap = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888)

	var bitmapConfig: Bitmap.Config? = bitmap.config
	if (bitmapConfig == null) {
		bitmapConfig = Bitmap.Config.ARGB_8888
	}
	bitmap = bitmap.copy(bitmapConfig, true)

	val canvas = Canvas(bitmap)
	val paint = Paint(Paint.ANTI_ALIAS_FLAG)
	paint.color = context.color(textColor)
	paint.textSize = textSize
	paint.setShadowLayer(1f, 0f, 1f, Color.WHITE)

	paint.typeface = ResourcesCompat.getFont(context, R.font.sfp_regular)
	val paintCircle = Paint()

	paintCircle.color = context.color(backgroundColor)
	paintCircle.style = Paint.Style.FILL
	paintCircle.flags = Paint.ANTI_ALIAS_FLAG

	canvas.drawRect(0f, 0f, bitmap.width.toFloat(), bitmap.height.toFloat(), paintCircle)

	val bounds = Rect()
	paint.getTextBounds(text, 0, text.length, bounds)
	val x = (bitmap.width - bounds.width()) / 2
	val y = (bitmap.height + bounds.height()) / 2

	canvas.drawText(text, x.toFloat(), y.toFloat(), paint)

	return bitmap
}