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POClicking elements of a dynamic ListView obtained from a MYSQL Database
 

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  1. POClicking elements of a dynamic ListView obtained from a MYSQL Database
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    <p>I have a ListView obtained from a MYSQL Database, which shows the list of courses of a teacher, and my idea is when i click on each one, it sends the datas of the course and class through Intents and goes to another activity. The problem is because is a dynamic list and it´s variable the number of rows that have the listview.</p> <p>For example, the ListView has:</p> <p>1A 2A 2B</p> <p>My idea is when i click on 1A, it sends to an another activity passing it 1 and A as variables. When i click on 2A, the variables would be 2 and A and with 2B, 2 and B.</p> <p>My idea is use the method </p> <pre><code>public void onItemClick(AdapterView&lt;?&gt; adapterView, View view, int i, long l) </code></pre> <p>My code is:</p> <pre><code> public class Cursos extends MainActivity{ ListView listaJson; String user; static int id_usuario; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.cursos); listaJson = (ListView)findViewById(R.id.lista_cursos); Bundle extras = getIntent().getExtras(); //Obtenemos datos enviados en el intent. if (extras != null) { user = extras.getString("user"); id_usuario = extras.getInt("id_usuario");//usuario }else{ user="error"; } Tarea1 tarea1 = new Tarea1(); tarea1.cargarContenido(getApplicationContext()); tarea1.execute(listaJson); //Le pasamos la lista para modificarla listaJson.setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override public void onItemClick(AdapterView&lt;?&gt; adapterView, View view, int i, long l) { String item = ((TextView)view).getText().toString(); Toast.makeText(getBaseContext(), item, Toast.LENGTH_LONG).show(); } }); } //Creamos un listView a través de sus objetos Curso. static class Tarea1 extends AsyncTask&lt;ListView, Void, ArrayAdapter&lt;mostrar_cursos&gt;&gt; { Context contexto; ListView list; InputStream is; ArrayList&lt;mostrar_cursos&gt; listacursos = new ArrayList&lt;mostrar_cursos&gt;(); public void cargarContenido (Context contexto) { this.contexto= contexto; } @Override protected ArrayAdapter&lt;mostrar_cursos&gt; doInBackground(ListView... params) { list = params[0]; String resultado = "fallo"; mostrar_cursos curs; //Creo la conexión HTTP HttpClient cliente = new DefaultHttpClient(); HttpGet peticionGet = new HttpGet("http://192.168.0.100/android/sesion_profesor.php?id_usuario="+id_usuario+""); try{ HttpResponse response = cliente.execute(peticionGet); HttpEntity contenido = response.getEntity(); is = contenido.getContent(); //Contenido de la respuesta }catch (ClientProtocolException e) { e.printStackTrace(); }catch (IOException e) { e.printStackTrace(); } BufferedReader buferlector = new BufferedReader (new InputStreamReader(is));//leemos los datos del is StringBuilder sb = new StringBuilder(); String linea = null; try{ while((linea = buferlector.readLine())!=null) { sb.append(linea); } }catch (IOException e) { e.printStackTrace(); } try{ is.close(); //Cerramos el inputstream para no consumir recursos }catch (IOException e) { e.printStackTrace(); } resultado = sb.toString(); //Pasamos lo que hemos recibido por parámetros a la variable resultado //En la variable resultado tengo: [{"curso":"1","clase":"A"}] try{ JSONArray arrayJson = new JSONArray(resultado); for(int i= 0; i&lt;arrayJson.length();i++){ //Recorro el string JSONObject objetoJson = arrayJson.getJSONObject(i); //Devuelvo el primer objeto (indice=0) {"curso":"1","clase":"A"} curs = new mostrar_cursos(objetoJson.getString("curso"), objetoJson.getString("clase")); listacursos.add(curs); //Añado el nuevo curso } }catch (JSONException e){ e.printStackTrace(); } ArrayAdapter&lt;mostrar_cursos&gt; adaptador = new ArrayAdapter&lt;mostrar_cursos&gt;(contexto, android.R.layout.simple_list_item_1, listacursos); //Contexto de ver clientes (Muestra la lista con los datos de clientes que le he pasado return adaptador; //Devuelve su dato al método onPostExecute } @Override protected void onPostExecute(ArrayAdapter&lt;mostrar_cursos&gt; result) { list.setAdapter(result); } } } </code></pre> <p>And an image of the listview:</p> <p><img src="https://i.stack.imgur.com/rTND2.png" alt="enter image description here"></p>
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    1. USRiser
    1. USAlonso González Nestal
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    1. COyou want to send value in next activity ?
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      1. POClicking elements of a dynamic ListView obtained from a MYSQL Database
      1. USChintan Khetiya
    2. COYes, i want to send the number of course and the letter of course
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      1. POClicking elements of a dynamic ListView obtained from a MYSQL Database
      1. USAlonso González Nestal
    3. CO@AlonsoGonzálezNestal number and string is on different textviews?
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      1. POClicking elements of a dynamic ListView obtained from a MYSQL Database
      1. USRaghunandan
 

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