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POWhy the contextmenu isn't working?
 

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  1. POWhy the contextmenu isn't working?
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    <p>I have a listview with a custon adapter. I have to put a context menu for it, but it's not working. And I put the <code>onItemLongClick</code> to the list and it's not working too. I don't know how to trigger the <code>contextmenu</code>. If I have to click on an item or long click on it. I do register a long click to get the id from the item.</p> <p><strong>EDIT</strong> I think i figure out whats the problem. I have a button on my item listview. I remove this button from the layout and the context menu worked fine. But I need this button. Why the button was causing problem in the context menu?</p> <p>This is the class:</p> <pre><code>public class HistoricoDespesasActivity extends Activity { Helper h; AlphaAnimation buttonClick; DespesasDAO dDAO; ListView lv; DespesaHistoricoAdapter adapter; int idDespesasSelecionada; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_historico_despesas); lv = (ListView)findViewById(R.id.lvHistoricoDespesas); TextView tvMarcaModelo = (TextView)findViewById(R.id.tvMarcaModeloCabecalho); TextView tvApelido = (TextView)findViewById(R.id.tvApelidoCabecalho); tvApelido.setVisibility(View.INVISIBLE); tvMarcaModelo.setVisibility(View.INVISIBLE); buttonClick = new AlphaAnimation(1, 0.5f); h = new Helper(this); h.mostraVeiculoAtivo(); adapter = new DespesaHistoricoAdapter(this); dDAO = new DespesasDAO(this); dDAO.open(); Cursor cursor = dDAO.consultarTodasDespesasByIdVeiculo(h.getId()); int id; String data; String tipoDespesa = null; double valor; int tipo = 0; if(cursor != null &amp;&amp; cursor.moveToFirst()){ do { id = cursor.getInt(cursor.getColumnIndex(DespesasDAO.COLUNA_ID)); data = cursor.getString(cursor.getColumnIndex(DespesasDAO.COLUNA_DESPESA_DATA)); tipo = cursor.getInt(cursor.getColumnIndex(DespesasDAO.COLUNA_ITEM_ID)); valor = cursor.getDouble(cursor.getColumnIndex(DespesasDAO.COLUNA_DESPESA_VALOR)); if(tipo == 1){ tipoDespesa = "Pedágio"; } else if(tipo == 2){ tipoDespesa = "Estacionamento"; } else if(tipo == 3){ tipoDespesa = "Lavagem"; } else if(tipo == 4){ tipoDespesa = "Diversos"; } adapter.addDespesa(id, tipoDespesa, data, valor); } while (cursor.moveToNext()); cursor.close(); dDAO.close(); lv.setAdapter(adapter); } lv.setLongClickable(true); lv.setOnItemLongClickListener(new OnItemLongClickListener() { @Override public boolean onItemLongClick(AdapterView&lt;?&gt; parent, View view, int position, long id) { idDespesasSelecionada = (Integer) parent.getItemAtPosition(position); return true; } }); registerForContextMenu(lv); } @Override public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) { super.onCreateContextMenu(menu, v, menuInfo); menu.setHeaderTitle("Despesas"); menu.add(0, v.getId(), 0, "Deletar"); } @Override public boolean onContextItemSelected(MenuItem item) { if(item.getTitle().equals("Deletar")){ dDAO.open(); dDAO.removerDespesasById(idDespesasSelecionada); dDAO.close(); } onCreate(new Bundle()); return super.onContextItemSelected(item); } @Override protected void onResume() { onCreate(new Bundle()); super.onResume(); } } </code></pre>
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    1. COwhat is the purpose of setOnItemLongClickListener of list ..? can you explain it?
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    2. COThis is for open the context menu and set the id in idDespesasSelecionada
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