How to get value in a ListView according to position?

Question

I am trying to show database values into a Listview but, I set position of element manually (e.g. if(position==0){}) to do the intent to next activity. But i want to show these element according to their id, name, and mobile (i.e. for 1st element activity can parse these parameter to next activity, for 2nd parameters can hold their appropriate value...etc). so how can i perform this!

List.java

  protected void showList(){
            try {
                JSONObject jsonObj = new JSONObject(myJSON);
                peoples = jsonObj.getJSONArray(TAG_RESULTS);

                for(int i=0;i<peoples.length();i++){
                    JSONObject c = peoples.getJSONObject(i);
                    String id = c.getString(TAG_ID);
                    String name = c.getString(TAG_NAME);
                    String mobile = c.getString(TAG_MOB);

                    HashMap<String,String> persons = new HashMap<String,String>();

                    persons.put(TAG_ID,id);
                    persons.put(TAG_NAME,name);
                    persons.put(TAG_MOB,mobile);

                    personList.add(persons);
                }

                ListAdapter adapter = new SimpleAdapter(
                        User_List.this, personList, R.layout.list_item,
                        new String[]{TAG_ID,TAG_NAME,TAG_MOB},
                        new int[]{R.id.id, R.id.name, R.id.mobile}
                );

                list.setAdapter(adapter);
                list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
                    @Override
                    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                            if(position==0) {

                                Intent intent = new Intent(User_List.this, MapsActivity.class);
                                startActivity(intent);
                            }
                    }
                });

            } catch (JSONException e) {
                e.printStackTrace();
            }

for every element in listview is next activity the same? – Satish Silveri Nov 19 '16 at 05:35 — Satish Silveri, Nov 19 '16 at 05:35

score 0 · Accepted Answer · edited May 23 '17 at 12:30

All you need to do is send the Hashmap object at that position in personList array like this:

list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
                    @Override
                    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

                                Intent intent = new Intent(User_List.this, MapsActivity.class);
                                intent.putExtra("object",(Serializable)personList.get(position));
                                startActivity(intent);
                            }

                });

and in another activity:

  HashMap<String,String> object=(HashMap<String, String>)getIntent().getSerializableExtra("object");

and then just set the textview like:

textview.setText(object.TAG_ID);
textview1.setText(object.TAG_NAME);
textview2.setText(object.TAG_MOB);

check this if it works!!!!!

if u have anymore doubts about how to pass hashmap between actvities check below link:

Android - How to pass HashMap<String,String> between activities?

It shows 'cannot resolve' on TAG_ID?... – Rushi K Nov 21 '16 at 04:38 — Rushi K, Nov 21 '16 at 04:38
try object.get(TAG_ID) – Satish Silveri Nov 21 '16 at 04:50 — Satish Silveri, Nov 21 '16 at 04:50
yes!...it works!...Thanks a lot! – Rushi K Nov 21 '16 at 07:55 — Rushi K, Nov 21 '16 at 07:55

How to get value in a ListView according to position?

1 Answers1