ArrayAdapter<String> deptAdapter = new ArrayAdapter<>(Courses.this, R.layout.profile_spinner_textview, coursetype);
                spinner1.setAdapter(deptAdapter);
                Log.d("co_id", String.valueOf(coursetypeid));
ArrayAdapter<String> centAdapter = new ArrayAdapter<>(Courses.this, R.layout.profile_spinner_textview, centertype);
                spinner2.setAdapter(centAdapter);
     spinner1.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
                @Override
                public void onItemSelected(AdapterView<?> adapterView, View view, int i, long l) {
                    co_id=coursetypeid.get(i);
                    Log.d("co_id",co_id);
                    loaddata();
                }
                @Override
                public void onNothingSelected(AdapterView<?> adapterView) {
                }
            });
            spinner2.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
                @Override
                public void onItemSelected(AdapterView<?> adapterView, View view, int i, long l) {
                    cent_id=centerid.get(i);
                     loaddata();
                }
                @Override
                public void onNothingSelected(AdapterView<?> adapterView) {
                }
            });
while opening activity same function calling multiple times. how to avoid this. i want call same function while selecting items from spinners. please help me
