How to change the other one when clicking on one element of the list?

Question

Java

There is a list , each element of the list has a button , which has two "text" states "Play" and "Stop". How can I make it so that if I clicked on the button of the first list item (on which Play changed to Stop), when I clicked on the button of another list item, the text of the button of the first one changed back to Play.

Answer 1

The list is represented by a model (an array or a list of objects mapped to the UI). The click event must reach the entity driving the logic (this is by no means a List/RecyclerView adapter). For example, this is a presenter. This entity should change the model (list of objects) and cause UI changes. The UI layer must notify the adapter about the change and then the UI will be redrawn.