Android：recyclerview如何实现setMultiChoiceListener？

Question

I have a recyclerview and I want to implement a setMultiChoiceListener . Why is there no such function in the recyclerview ?

I do not want a simple longclick because the longclick executes the method only when the finger is no longer on the screen, while the set multichoice it performs the function after 1 second even if the finger is still on the screen

Answer 1

I think there is no multi choice listener because the RecylerView is designed that way , it recycles the layout items that are no longer visible and recreates them when needed.

As a workaround you could do the following :

1.include a radio button that shows the
  selected state in the recyclerview item when clicked
2.In the adapter have an list of your choosing (eg. ArrayList) 
  that contains your selected objects (add/remove them when selected/deselected)
3.In the adapter you can make a method (eg. getSelectedItems()) that will 
  return that list.

If you provide what have you tried so far I will help you with the code