drawSquareStates

override fun onDraw(canvas: Canvas) {
    super.onDraw(canvas)
    drawVerticalLines(canvas)
    drawHorizontalLines(canvas)
    drawSquareStates(canvas) // <------- here
    if (touching) {
        drawHighlightRectangle(canvas)
    }
}
private fun drawSquareStates(canvas: Canvas) {
        for ((i, textArray) in squareData.withIndex()) {
            for ((j, text) in textArray.withIndex()) {
                if (text.isNotEmpty()) {
                    drawTextInsideRectangle(canvas, squares[i][j], text)
                }
            }
        }
    }
     // created in the previous post
     private fun drawTextInsideRectangle(canvas: Canvas, rect: Rect, str: String) {
        val xOffset = textPaint.measureText(str) * 0.5f
        val yOffset = textPaint.fontMetrics.ascent * -0.4f
        val textX = (rect.exactCenterX()) - xOffset
        val textY = (rect.exactCenterY()) + yOffset
        canvas.drawText(str, textX, textY, textPaint)
    }