Discussion :

[janyoura]

Bonjour,
je récupère les données à partir d'une base de données distantes (serveur distant) et je n'arrive pas à savoir comment récupérer l'id d'un item lors du click sur ce dernier pour ensuite l'utiliser pour récupérer d'autre information sur cet item (numéro téléphone, mail).
Pouvez vous m'aider? merci

Code :

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public class GetChoiceActivity extends ListActivity implements OnClickListener {
	String city;
	String field;
 
    // Progress Dialog
    private ProgressDialog pDialog;
 
    // Creating JSON Parser object
    JSONParser jParser = new JSONParser();
 
    List<HashMap<String, String>> centersList;
 
    // url to get all products list
    private static String url_all_products = "http://lien.php";
 // JSON Node names
    private static final String TAG_SUCCESS = "success";
    private static final String TAG_PRODUCTS = "centers";
    private static final String TAG_PID = "_id";
    private static final String TAG_NAME = "name";
    private static final String TAG_TEL = "tel";
    private static final String TAG_ADDRESS = "address";
    private static final String TAG_FIELD = "field";
    private static final String TAG_EMAIL = "email";
    private static final String TAG_CITY = "city";
    ArrayList<String> list;
 
    // products JSONArray
    JSONArray centers = null;
 
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.resultat_list);
 
        Intent i = getIntent();
	     city = i.getStringExtra(ResearchActivity.CITY);
	     field = i.getStringExtra(ResearchActivity.FIELD);
	     Toast.makeText(GetChoiceActivity.this, "city is: " + city + " field is: " + field, Toast.LENGTH_LONG).show();
        // Hashmap for ListView
        centersList = new ArrayList<HashMap<String, String>>();
 
        registerForContextMenu(getListView());
        // Loading products in Background Thread
        new LoadAllCenters().execute();
 protected String doInBackground(String... args) {
            // Building Parameters
        	 Log.d("detail choice ", "city is: " + city + " field is: " + field);
            List<NameValuePair> params = new ArrayList<NameValuePair>();
            params.add(new BasicNameValuePair("city", city));
            params.add(new BasicNameValuePair("field", field));
            // getting JSON string from URL
            JSONObject json = jParser.makeHttpRequest(url_all_products, "GET", params);
 
            // Check your log cat for JSON reponse
           Log.d("Centers with selected options are: ", json.toString());
 
            try {
                // Checking for SUCCESS TAG
                int success = json.getInt(TAG_SUCCESS);
 
                if (success == 1) {
                    // products found
                    // Getting Array of Products
                    centers = json.getJSONArray(TAG_PRODUCTS);
 
                    // looping through All Products
                    for (int i = 0; i < centers.length(); i++) {
                        JSONObject c = centers.getJSONObject(i);
 
                        // Storing each json item in variable
                        String id = c.getString(TAG_PID);
                        String name = c.getString(TAG_NAME);
                        String tel = c.getString(TAG_TEL);
                        String address = c.getString(TAG_ADDRESS);
                        String field = c.getString(TAG_FIELD);
                        String city = c.getString(TAG_CITY);
                        String email = c.getString(TAG_EMAIL);
 
                        // creating new HashMap
                        HashMap<String, String> map = new HashMap<String, String>();
 
                        // adding each child node to HashMap key => value
                        map.put(TAG_PID, id);
                        map.put(TAG_NAME, name);
                        map.put(TAG_TEL, tel);
                        map.put(TAG_ADDRESS, address);
                        map.put(TAG_CITY, city);
                        map.put(TAG_FIELD, field);
                        map.put(TAG_EMAIL, email);
 
                        // adding HashList to ArrayList
                        centersList.add(map);
                        list = new ArrayList<String>(map.values());
                    }
                } 
            } catch (JSONException e) {
                e.printStackTrace();
            }
 
            return null;
        }
 protected void onPostExecute(String file_url) {
            // dismiss the dialog after getting all products
            pDialog.dismiss();
            // updating UI from Background Thread
            runOnUiThread(new Runnable() {
                public void run() {
                    /**
                     * Updating parsed JSON data into ListView
                     * */
                    ListAdapter adapter = new SimpleAdapter(
                    		GetChoiceActivity.this, centersList,
                            R.layout.list_item, new String[] {
                                    TAG_NAME, TAG_TEL, TAG_EMAIL, TAG_ADDRESS, TAG_CITY, TAG_FIELD},
                            new int[] { R.id.textName,R.id.TextTel,R.id.TextEmail,R.id.TextAddress,R.id.TextCity,R.id.TextField });
                    // updating listview
                    setListAdapter(adapter);
                }
            });
 
        }
@Override // Selection d'un item de la liste
	protected void onListItemClick(ListView l, View v, int position, long id) {
		//comment récupere l'id de l'item
		v.showContextMenu();

[Feanorin]

Bonjour,

This method will be called when an item in the list is selected. Subclasses should override. Subclasses can call getListView().getItemAtPosition(position) if they need to access the data associated with the selected item.

Parameters
l The ListView where the click happened
v The view that was clicked within the ListView
position The position of the view in the list
id The row id of the item that was clicked

id : identifiant de la ligne.
position : position dans ta liste.

Si c'est l'id TAG_PID que tu cherches alors il faut que tu récupères l'éléments avec la position puis depuis l'élément récupéré faire un getter sur son _id.