This is simple and most common tip for every one because most of time we need to call a activity method inside adapter to pass data etc….
Try this to call inside adapter
((YourActivityName)mContext).customMethod();
If you are using same adapter in multiple activity you need to find instanceof and the call and specific method for the task like this:-
if(mContext instanceof YourActivityName){ ((YourActivityName)mContext).yourActivityMethod(); }
đŸ™‚