Android Open Source - jpdroid Main Activity

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License

The source code is released under:
GNU General Public License
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Java Source Code

package com.rafael.androidcomjpdroid;
//from   w  w w .j  a v a 2  s .co m
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.database.Cursor;
import android.os.Bundle;
import android.support.v4.widget.SimpleCursorAdapter;
import android.view.ContextMenu;
import android.view.ContextMenu.ContextMenuInfo;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView.AdapterContextMenuInfo;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.Toast;
import br.com.rafael.jpdroid.core.Jpdroid;
import br.com.rafael.jpdroid.enums.ScriptPath;

import com.rafael.androidcomjpdroid.entity.Contato;
import com.rafael.androidcomjpdroid.entity.Pessoa;
import com.rafael.androidcomjpdroid.entity.TipoContato;

public class MainActivity extends Activity {

  private static final int PESSOA = 1;
  Jpdroid database;
  ListView lvPessoa;
  EditText etPesquisa;

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

    lvPessoa = (ListView) findViewById(R.id.lvPessoa);
    etPesquisa = (EditText) findViewById(R.id.etPesquisa);

    database = Jpdroid.getInstance();
    database.setContext(this);
    database.addEntity(Pessoa.class);
    database.addEntity(Contato.class);
    database.addEntity(TipoContato.class);
    database.open();

    if (database.isCreate()) {
      database.importSqlScript(ScriptPath.Assets, "import.sql");
    }

    adquirirPessoas("");

    registerForContextMenu(lvPessoa);

  }

  public void btnPesquisaOnClick(View v) {
    adquirirPessoas(etPesquisa.getText().toString());
  }

  private void adquirirPessoas(String filtro) {
    String where = "";
    if (filtro.trim().matches("^[0-9]*$") && filtro.trim().length() > 0) {
      where = "_id = " + filtro;
    } else {
      where = "nome like '%" + filtro + "%'";
    }

    Cursor cursor = database.createQuery(Pessoa.class, where, " _id asc ");

    SimpleCursorAdapter dataAdapter = new SimpleCursorAdapter(this,
        android.R.layout.simple_list_item_2, cursor, new String[] {
            "_id", "nome" }, new int[] { android.R.id.text1,
            android.R.id.text2 }, 0);

    lvPessoa.setAdapter(dataAdapter);

  }

  public void btnNovoContatoOnClick(View v) {
    Intent i = new Intent(this, PessoaActivity.class);
    i.putExtra("posicao", 0);
    startActivityForResult(i, PESSOA);

  }

  private void deletePessoa(final int posicao) {
    AlertDialog.Builder builder = new AlertDialog.Builder(this);
    builder.setMessage("Confirma a exclus?o?");
    builder.setPositiveButton("Sim", new DialogInterface.OnClickListener() {
      @Override
      public void onClick(DialogInterface dialog, int which) {
        if (database.delete(Pessoa.class,
            (Cursor) lvPessoa.getItemAtPosition(posicao)) <= 0) {
          Toast.makeText(getBaseContext(),
              "A pessoa n?o pode ser exclu?da!",
              Toast.LENGTH_SHORT).show();
        }
        adquirirPessoas(etPesquisa.getText().toString());

        dialog.dismiss();
      }
    });
    builder.setNegativeButton("N?o", new DialogInterface.OnClickListener() {
      @Override
      public void onClick(DialogInterface dialog, int which) {
        dialog.dismiss();
      }
    });

    builder.show();

  }

  public void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (requestCode == PESSOA) {
      if (resultCode == Activity.RESULT_OK && data != null) {
        adquirirPessoas("");
      }
    }
  }

  @Override
  public void onCreateContextMenu(ContextMenu menu, View v,
      ContextMenuInfo menuInfo) {
    super.onCreateContextMenu(menu, v, menuInfo);
    MenuInflater inflater = getMenuInflater();
    inflater.inflate(R.menu.pessoa, menu);
  }

  @Override
  public boolean onContextItemSelected(MenuItem item) {
    AdapterContextMenuInfo info = (AdapterContextMenuInfo) item
        .getMenuInfo();
    switch (item.getItemId()) {
    case R.id.excluirPessoa:
      deletePessoa(info.position);
      break;
    case R.id.editarPessoa:
      Intent i = new Intent(this, PessoaActivity.class);
      Cursor cursor = (Cursor) lvPessoa.getItemAtPosition(info.position);
      long id = cursor.getLong(cursor.getColumnIndex("_id"));
      i.putExtra("_id", id);
      startActivity(i);
      break;
    default:
      return super.onContextItemSelected(item);
    }
    return super.onContextItemSelected(item);
  }
}
Java Source Code List
