Unable To Add String In Arraylist In Onprogressupdate In Asynctask

I am getting null arraylist 'rev_arr' despite adding item in onProgressupdate. I passed String in publishprogress method. But it is not working. For easiness I had not written imp

Solution 1:

try this,

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

                        getrev task=new getrev(){
                            @Override
                            protected void onPostExecute(Void aVoid) {
                                super.onPostExecute(aVoid);
                                String[] revi_arr = rev_arr.toArray(new String[rev_arr.size()]);
                                Log.e("mayank1", revi_arr[1]);
                                Intent intent_rev = new Intent(getActivity(), det_mov_rev.class);
                                Bundle ex_rev = new Bundle();
                                ex_rev.putStringArrayList("rev_list", rev_arr);
                                intent_rev.putExtras(ex_rev);
                                startActivity(intent_rev);

                            }
                        };
                        task.execute(id);

                    }
                });