Animate MaxLines and Ellipsize

Question

I have textview which contains a part of a text. When the user clicks the arrow, the textview resizes so the full text is shown. See the images below for an example:

Answer 1

You can achieve this using an ObjectAnimator

ObjectAnimator animation = ObjectAnimator.ofInt(
        tvText,
        "maxLines", 
        25);
animation.setDuration(4000);
animation.start();

This will increase the "maxLines" property of the "tvText" TextView from whatever it initially is set to, to 25, over the period of 4000 milliseconds.

See more here and here.