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I have a query screen, where she should display the items already registered.
It just doesn’t show.
At first, I thought it was because the information wasn’t being recorded in the comic book, but they’re.
I just, I didn’t think why they weren’t loaded... I guess it’s something I didn’t do, but I don’t know what it is.
Conscliente.java
package br.sysandroid;
import java.util.List;
import android.app.ListActivity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import br.sysandroid.dao.banco.BancoDAO;
import br.sysandroid.model.Cliente;
import br.sysandroid.dao.ClienteAdapter;
import br.sysandroid.dao.ClienteDAO;
public class ConsCliente extends ListActivity {
private ClienteDAO clienteDAO;
List<Cliente> clientes;
ClienteAdapter adapter;
BancoDAO bancoDAO;
int posicao = 0;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.conscliente);
bancoDAO = new BancoDAO(this);
Button btCadastro = (Button) findViewById(R.id.btCadastro);
btCadastro.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
startActivity(new Intent(ConsCliente.this, CadCliente.class));
}
});
}
@Override
protected void onResume() {
clienteDAO = new ClienteDAO(this);
clienteDAO.open();
clientes = clienteDAO.lerClientes();
adapter = new ClienteAdapter(this, clientes);
setListAdapter(adapter);
super.onResume();
}
}
conscliente.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:padding="@dimen/activity_vertical_margin" >
<ListView
android:id="@android:id/list"
android:layout_width="match_parent"
android:layout_height="291dp" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<Button
android:id="@+id/btCadastro"
android:text="Cadastro"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<Button
android:id="@+id/btSair"
android:text="Sair"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
</LinearLayout>
Clienteadapter.java
package br.sysandroid.dao;
import java.util.List;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;
import android.widget.Toast;
import br.sysandroid.R.id;
import br.sysandroid.R.layout;
import br.sysandroid.model.Cliente;
public class ClienteAdapter extends BaseAdapter {
private Context context;
private List<Cliente> clientes;
private LayoutInflater inflater;
public ClienteAdapter(Context context, List<Cliente> clientes) {
super();
this.context = context;
this.clientes = clientes;
this.inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
@Override
public void notifyDataSetChanged() {
try {
super.notifyDataSetChanged();
} catch (Exception e) {
trace("Erro: " + e.getMessage());
}
}
private void trace(String msg) {
toast(msg);
}
public void toast(String msg) {
Toast.makeText(context, msg, Toast.LENGTH_SHORT).show();
}
public int getCount() {
return 0;
}
public void remove(final Cliente cliente) {
this.clientes.remove(cliente);
}
public void add(final Cliente clientes) {
this.clientes.add((Cliente) clientes);
}
public Object getItem(int position) {
return clientes.get(position);
}
public long getItemId(int position) {
return position;
}
public View getView(int position, View convertView, ViewGroup viewGroup2) {
try {
Cliente cliente = clientes.get(position);
ViewHolder holder;
if (convertView == null) {
convertView = inflater.inflate(layout.linha_cliente, null);
holder = new ViewHolder();
holder.tvNome = (TextView) convertView.findViewById(id.tvRazaoSocialNome);
holder.tvTelefone = (TextView) convertView.findViewById(id.tvTelefone);
holder.tvEmail = (TextView) convertView.findViewById(id.tvEmail);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.tvNome.setText(cliente.getNome());
holder.tvTelefone.setText(cliente.getTelefone());
holder.tvEmail.setText(cliente.getEmail());
return convertView;
} catch (Exception e) {
trace("Erro: " + e.getMessage());
}
return convertView;
}
static class ViewHolder {
public TextView tvNome;
public TextView tvTelefone;
public TextView tvEmail;
}
}
What is this
setListAdapter(adapter);
?– Fernando Leal
@Fernando is a method of
ListActivity
, which is the specialisation ofActivity
that OP is using to display the list.– Piovezan