android-Obtenir l'ID de l'article dans listView

Question

je lis les données de mysql avec JSON et php et les mets dans un listView avec AsyncTask et je suis essayant d'obtenir l'identification d'article avec setOnItemClickListener et le griller mais il me montre le mauvais identifiant par exemple quand je clique sur l'identifiant de l'article 4 il me montre 2 merci si vous m'aidez.

ActivityList public class étend AppCompatActivity {

private String TAG = ActivityList.class.getSimpleName(); 

private ProgressDialog pDialog; 
private ListView lv; 

private String[] items ; 

// URL to get contacts JSON 
private static String url = "My URL"; 

ArrayList<HashMap<String, String>> contactList; 


@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_list_view); 

    contactList = new ArrayList<>(); 

    lv = (ListView) findViewById(R.id.listItems); 

    new GetContacts().execute(); 
} 

/** 
* Async task class to get json by making HTTP call 
*/ 
private class GetContacts extends AsyncTask<Void, Void, Void> { 

    @Override 
    protected void onPreExecute() { 
     super.onPreExecute(); 
     // Showing progress dialog 
     pDialog = new ProgressDialog(ActivityList.this); 
     pDialog.setMessage("Please wait..."); 
     pDialog.setCancelable(false); 
     pDialog.show(); 

    } 

    @Override 
    protected Void doInBackground(Void... arg0) { 
     HttpHandler sh = new HttpHandler(); 

     // Making a request to url and getting response 
     String jsonStr = sh.makeServiceCall(url); 

     Log.e(TAG, "Response from url: " + jsonStr); 

     if (jsonStr != null) { 
      try { 
       JSONObject jsonObj = new JSONObject(jsonStr); 

       // Getting JSON Array node 
       JSONArray contacts = jsonObj.getJSONArray("houseDB"); 

       // looping through All Contacts 
       for (int i = 0; i < contacts.length(); i++) { 
        JSONObject c = contacts.getJSONObject(i); 

        String name = c.getString("name"); 
        String address = c.getString("address"); 
        String telephone = c.getString("telephone"); 
        String option = c.getString("option"); 
        String ID = c.getString("ID"); 

        // tmp hash map for single contact 
        HashMap<String, String> contact = new HashMap<>(); 

        // adding each child node to HashMap key => value 
        contact.put("name", name); 
        contact.put("address", address); 
        contact.put("telephone", telephone); 
        contact.put("option", option); 
        contact.put("ID", ID); 

        //put id row in array 
        items = new String[]{ID}; 

        // adding contact to contact list 
        contactList.add(contact); 
       } 
      } catch (final JSONException e) { 
       Log.e(TAG, "Json parsing error: " + e.getMessage()); 
       runOnUiThread(new Runnable() { 
        @Override 
        public void run() { 
         Toast.makeText(getApplicationContext(), 
           "Json parsing error: " + e.getMessage(), 
           Toast.LENGTH_LONG) 
           .show(); 
        } 
       }); 

      } 
     } else { 
      Log.e(TAG, "Couldn't get json from server."); 
      runOnUiThread(new Runnable() { 
       @Override 
       public void run() { 
        Toast.makeText(getApplicationContext(), 
          "Couldn't get json from server. Check LogCat for possible errors!", 
          Toast.LENGTH_LONG) 
          .show(); 
       } 
      }); 



     } 

     return null; 
    } 

    @Override 
    protected void onPostExecute(Void result) { 
     super.onPostExecute(result); 
     // Dismiss the progress dialog 
     if (pDialog.isShowing()) 
      pDialog.dismiss(); 
     /** 
     * Updating parsed JSON data into ListView 
     * */ 
     ListAdapter adapter = new SimpleAdapter(
       ActivityList.this, contactList, 
       R.layout.list_item, new String[]{"name", "address", 
       "telephone", "option", "ID"}, new int[]{R.id.txtName, 
       R.id.txtAddress, R.id.txtTelephone, R.id.txtOption, R.id.txtID}); 

     lv.setAdapter(adapter); 

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

       //get item id 
       TextView itemID = (TextView) findViewById(R.id.txtID); 
       String text = itemID.getText().toString(); 
       Toast.makeText(getApplicationContext(), text, Toast.LENGTH_SHORT).show(); 

      } 
     }); 

    } 

} 

}

Answer 1

Essayer d'obtenir id de Contactez-HashMap utilisant la position de l'élément de la liste des liste des contacts au lieu d'obtenir id de TextView texte ci-dessous:

lv.setOnItemClickListener(new AdapterView.OnItemClickListener() { 
     @Override 
     public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 
     Toast.makeText(getApplicationContext(), contactList.get(position).get("ID"), Toast.LENGTH_SHORT).show(); 
     } 
}); 

Answer 2

Depuis txtID aura plusieurs vues associées à l'adaptateur, Vous devez trouver le txtID de l'élément actuellement cliqué.

TextView itemID = (TextView) view.findViewById(R.id.txtID); 

Answer 3

utilisation comme celui-ci

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

      //get item id 
      TextView ids = (TextView) findViewById(R.id.txtID); 
      Contactlistyourclass co=new Contactlistyourclass(); 
      co=contactList.get(i) 
      String d = co.getId(); // or what ever you have in your contactlist class as getter method! 
      Toast.makeText(getApplicationContext(), d, Toast.LENGTH_SHORT).show(); 

     } 
    }); 

} 

Answer 4

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

      //get item id 
      TextView itemID = (TextView) parent.findViewById(R.id.txtID); 
      String text = itemID.getText().toString(); 
      Toast.makeText(getApplicationContext(), text, Toast.LENGTH_SHORT).show(); 

     } 
    });