Android MVP - 从活动展示器到片段展示器的数据

Question

I have an activity with a DialogFragment and I need to pass an ArrayList from the activity presenter to the fragment presenter. Currently I'm doing this within the newInstance method with parameters and by using arguments.

Is there any other method which I should consider?

Answer 1

If the data is non-persistent, and your using it for a single purpose. Then passing it to the Fragment via newInstance / Builder is fine, I would think of newInstance / Builder s as just a more round-about way of using a constructor.

If the data is persistent, you might want to have a service / singleton that the Dialog 's presenter can pull from when needed.