Check if listview items contains specified data then start next activity

Question

I have a Listview of custom adapter which has five fields in it. Name, Cnic, No, Desgination and attendance. Now what i want to do is that i have to check whether all the list items have some value written after attendance column. If there is any thing on attendance column then the user can move to next activity otherwise it will prompt user to mark attendance.

Here is my code for getting value and setting in the adapter.

  for (int p = 0; p < teacherList.size(); p++) {
        details = new DetailsTeacherwebservice();
        //ArrayList<Object> baris = data.get(p);
        details.setId(teacherList.get(p).getId());
        details.setTeachername(teacherList.get(p).getTeachername());
        details.setTeachercnic(teacherList.get(p).getTeachercnic());
        details.setTeacherno(teacherList.get(p).getTeacherno());
        details.setTeachergender(teacherList.get(p).getTeachergender());
        details.setAttendance(teacherList.get(p).getAttendance());

        addas.add(details);
    }
    cusadapter = new CustomAdapterTeacherWebservice(TeacherWebserviceMainList.this, addas);
    listcontent.setAdapter(cusadapter);

Here is the code for moving to next activity

next.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {

            Intent view_order_intent = new Intent(TeacherList.this, M_TeacherPresenceList.class);
            startActivity(view_order_intent);
            finish();
        }
    });

User can not move to next activity if attendance is empty or Null so that user has to mark attendance for all teachers in the list and then can go to next. Please Help

Answer 1

Try this

    ArrayList<Boolean> isAllMarked = new ArrayList<>();
    int attentednceMarkedCount = 0;
    for (int p = 0; p < teacherList.size(); p++) {
        if (!TextUtils.isEmpty(teacherList.get(p).getAttendance())) {
            isAllMarked.add(true);
        } else {
            isAllMarked.add(false);
        }
    }

    for (int i = 0; i < isAllMarked.size(); i++) {
        if (isAllMarked.get(i)) {  //if marked true
            attentednceMarkedCount = attentednceMarkedCount + 1;
        }
    }

    next.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {

            if (attentednceMarkedCount ==teacherList.size()) {
                Intent view_order_intent = new Intent(TeacherList.this, M_TeacherPresenceList.class);
                startActivity(view_order_intent);
                finish();
            } else {
                showAlert()
            }

        }
    });