PRIMERO CONFIGURAMOS ECLIPSE CON EL SDK DE ANDROID
LA ALICACION ES ADRESS BOOK
LO PRIMERO QUE TENEMOS QUE HACER ES BAJAR Y CONFIGURAR EL ECLIPSE
YO BAJE LA ULTIMA VERSION QUE ES MARS
DESPUES HAY QUE BAJAR EL SDK DE ANDROID
Para bajar el Android SDK:
DESPUES VAS A ECLIPSE-> WINDOW->INSTALL NEW PROGRAM->
PONES LA SIGUIENTE LIGA
HAY QUE BAJARSE TODO EL DEVELOPER SUITE
POSTERIORMENTE PODRAS ABRIR EL AVD
LA CONFIGURACION CORRECTA ES
LAS LIBRERIAS INSTALADAS SON
EJECUTAR COMO ANDROID APLICATION:
LA APLICACION EN ACCION
NEXUS EMULATOR
PARTE DEL CODIGO FUENTE
package com.deitel.addressbook;
import android.app.Activity;
import android.app.ListFragment;
import android.database.Cursor;
import android.os.AsyncTask;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.CursorAdapter;
import android.widget.ListView;
import android.widget.SimpleCursorAdapter;
public class ContactListFragment extends ListFragment
{
// callback methods implemented by MainActivity
public interface ContactListFragmentListener
{
// called when user selects a contact
public void onContactSelected(long rowID);
// called when user decides to add a contact
public void onAddContact();
}
private ContactListFragmentListener listener;
private ListView contactListView; // the ListActivity's ListView
private CursorAdapter contactAdapter; // adapter for ListView
// set ContactListFragmentListener when fragment attached
@Override
public void onAttach(Activity activity)
{
super.onAttach(activity);
listener = (ContactListFragmentListener) activity;
}
// remove ContactListFragmentListener when Fragment detached
@Override
public void onDetach()
{
super.onDetach();
listener = null;
}
// called after View is created
@Override
public void onViewCreated(View view, Bundle savedInstanceState)
{
super.onViewCreated(view, savedInstanceState);
setRetainInstance(true); // save fragment across config changes
setHasOptionsMenu(true); // this fragment has menu items to display
// set text to display when there are no contacts
setEmptyText(getResources().getString(R.string.no_contacts));
// get ListView reference and configure ListView
contactListView = getListView();
contactListView.setOnItemClickListener(viewContactListener);
contactListView.setChoiceMode(ListView.CHOICE_MODE_SINGLE);
// map each contact's name to a TextView in the ListView layout
String[] from = new String[] { "name" };
int[] to = new int[] { android.R.id.text1 };
contactAdapter = new SimpleCursorAdapter(getActivity(),
android.R.layout.simple_list_item_1, null, from, to, 0);
setListAdapter(contactAdapter); // set adapter that supplies data
}
// responds to the user touching a contact's name in the ListView
OnItemClickListener viewContactListener = new OnItemClickListener()
{
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id)
{
listener.onContactSelected(id); // pass selection to MainActivity
}
}; // end viewContactListener
// when fragment resumes, use a GetContactsTask to load contacts
@Override
public void onResume()
{
super.onResume();
new GetContactsTask().execute((Object[]) null);
}
// performs database query outside GUI thread
private class GetContactsTask extends AsyncTask<Object, Object, Cursor>
{
DatabaseConnector databaseConnector =
new DatabaseConnector(getActivity());
// open database and return Cursor for all contacts
@Override
protected Cursor doInBackground(Object... params)
{
databaseConnector.open();
return databaseConnector.getAllContacts();
}
// use the Cursor returned from the doInBackground method
@Override
protected void onPostExecute(Cursor result)
{
contactAdapter.changeCursor(result); // set the adapter's Cursor
databaseConnector.close();
}
} // end class GetContactsTask
// when fragment stops, close Cursor and remove from contactAdapter
@Override
public void onStop()
{
Cursor cursor = contactAdapter.getCursor(); // get current Cursor
contactAdapter.changeCursor(null); // adapter now has no Cursor
if (cursor != null)
cursor.close(); // release the Cursor's resources
super.onStop();
}
// display this fragment's menu items
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater)
{
super.onCreateOptionsMenu(menu, inflater);
inflater.inflate(R.menu.fragment_contact_list_menu, menu);
}
// handle choice from options menu
@Override
public boolean onOptionsItemSelected(MenuItem item)
{
switch (item.getItemId())
{
case R.id.action_add:
listener.onAddContact();
return true;
}
return super.onOptionsItemSelected(item); // call super's method
}
// update data set
public void updateContactList()
{
new GetContactsTask().execute((Object[]) null);
}
} // end class ContactListFragment
/**************************************************************************
* (C) Copyright 1992-2014 by Deitel & Associates, Inc. and *
* Pearson Education, Inc. All Rights Reserved. *
* *
* DISCLAIMER: The authors and publisher of this book have used their *
* best efforts in preparing the book. These efforts include the *
* development, research, and testing of the theories and programs *
* to determine their effectiveness. The authors and publisher make *
* no warranty of any kind, expressed or implied, with regard to these *
* programs or to the documentation contained in these books. The authors *
* and publisher shall not be liable in any event for incidental or *
* consequential damages in connection with, or arising out of, the *
* furnishing, performance, or use of these programs. *
**************************************************************************/
