android - How to use the fragment's getActivity() method to pass a context? -

i'm working on android app, , gave me these errors

avoid non-default constructors in fragments: use default constructor plus fragment#setarguments(bundle) instead

and

this fragment should provide default constructor (a public constructor no arguments)

this code:

public afragment newinstance(int sectionnumber, context context) {     afragment fragment = new afragment(context);     bundle args = new bundle();     args.putlong(arg_section_number, sectionnumber);     fragment.setarguments(args);     return fragment; }  public afragment(context context) {     mcontext = context; } 

how use fragment's getactivity() method pass context ( mcontext = context )?

you should never need pass context fragment.

you can remove newinstance parameters

wherever use context field in fragment, replace getactivity().

if want use field, must assign in onattach , remember unassign when fragment stopped or detached activity