See More TextView - Kotlin

    private val showMoretext = "... See More"
    private val maxVisibleText = 100
    private val maxLine = 5


    fun makeTextViewResizable(tv: TextView, maxLine: Int, expandText: String, comment: String) {
        tv.text = comment
        val vto = tv.viewTreeObserver
        vto.addOnGlobalLayoutListener(object : OnGlobalLayoutListener {

            override fun onGlobalLayout() {
                val text: String
                val lineEndIndex: Int
                val obs = tv.viewTreeObserver
                obs.removeGlobalOnLayoutListener(this)
                if (maxLine == 0) {
                    lineEndIndex = tv.layout.getLineEnd(0)
                    text = tv.text.subSequence(0, lineEndIndex - expandText.length + 1).toString() + " " + expandText
                } else if (maxLine > 0 && tv.lineCount >= maxLine) {
                    lineEndIndex = tv.layout.getLineEnd(maxLine)
                    val subStringLength = minOf(lineEndIndex, maxVisibleText)
                    text = tv.text.subSequence(0, subStringLength).toString() + " " + expandText
                } else {
                    lineEndIndex = tv.layout.getLineEnd(tv.layout.lineCount - 1)
                    val subStringLength = minOf(lineEndIndex, maxVisibleText)
                    text = tv.text.subSequence(0, subStringLength).toString() + " " + expandText
                }
                tv.text = text
                tv.movementMethod = LinkMovementMethod.getInstance()
            }
        })
    }