Implementing click listener in RecyclerView?

Question

Android

Good afternoon! Very often in the examples I see the click processing logic directly in the RecyclerView adapter, and in connection with this, the question arose - shouldn't the adapter and logic be separated? After all, it is possible to hang a listener on the view in the adapter, and write the processing in another class? However, I often see that the logic is written directly in the adapter. How common is this practice in real projects, are there any conventions or best practices in this regard?

Answer 1

Necessarily. We put RecyclerView.OnItemsTouchListener in it, override onInterceptTouchEvent () - if it is necessary to process for the incoming event - then we call the onTouchEvent () method of the previously created GestureDetector with the GestureListener implemented and installed, in which we process the touch we need. The only way.

Answer 2

In the ViewHolder heir to the view that is passed to the constructor, hang a listener (on the root one or not) in the simplest and most logical way.

Answer 3

I like to use EventBus for this, you can pass the interface through the constructor to anyone as you like and depending on the situation

Answer 4

Definitely separate logic and GUI.