Cannot refresh ListView which gets data from JSON when click button from its Adapter in Android

Question

I am new with this and I try to have a ListView which get data from JSON

I have in its Adapter a button which updates a MySQL field

I try to update the ListView by reloading it but nothing is displayed

viewHolder.Valid.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {

           final DailyCrud mycrud = new DailyCrud();
           mycrud.Extend(String.valueOf(id));

            Intent intent = new Intent(getContext(), Actions.class);

            getContext().startActivity(intent);

            ((Activity)getContext()).finish();


        }
    });

and I get a null exception message in a toast message, how I can fix this?

Answer 1

最后我明白了，那是一个拼写错误的Actions.class谢谢