Android - Expandable TextView with Animation

Question

I have a TextView which firstly shows a small portion of a long text.

The user can press a \"see more\" button to expand the TextView and s

Answer 1

Step 1

Step 2

Step 3

    var isTextViewClicked = true
    if (binding.overviewText.lineCount > 3)
        binding.seeMoreImage.visibility = View.VISIBLE
    binding.seeMoreImage.setOnClickListener {
        isTextViewClicked = if(isTextViewClicked){
            binding.overviewText.maxLines = Integer.MAX_VALUE
            binding.seeMoreImage.setImageResource(R.drawable.ic_arrow_up)
            false
        } else {
            binding.overviewText.maxLines = 3
            binding.seeMoreImage.setImageResource(R.drawable.ic_arrow_down)
            true
        }
    }