The document defines an IntentService class called MiIntentService that performs a long-running task. It broadcasts progress updates using actions defined as constants. A ProgressReceiver broadcasts listens for these updates and updates the progress bar. The MainActivity starts the service by creating an intent with extra data and calling startService, which triggers the IntentService to run and broadcast progress until completion.

1. Manifest:
<service android:name=".MiIntentService"></service>
//------------------------------------------------------------------------------
--------------------------------------------
Intent msgIntent = new Intent(MainActivity.this, MiIntentService.class); //--->
Call the intent object
msgIntent.putExtra("iteraciones", 10);
startService(msgIntent);
public class ProgressReceiver extends BroadcastReceiver { //------> Create
the broadcast..
// is like a
listener who is waiting for.
// when bradcast
is sent from IntentService it response
@Override
public void onReceive(Context context, Intent intent) {
if(intent.getAction().equals(MiIntentService.ACTION_PROGRESO)) {
int prog = intent.getIntExtra("progreso", 0);
pbarProgreso.setProgress(prog);
}
else if(intent.getAction().equals(MiIntentService.ACTION_FIN)) {
Toast.makeText(MainActivity.this, "Tarea finalizada!",
Toast.LENGTH_SHORT).show();
}
}
}
//--------------------------------------------------------------------{INTENT
SERVICE CLASS}------------------------------------
public class MiIntentService extends IntentService {
public static final String ACTION_PROGRESO =
"net.sgoliver.intent.action.PROGRESO";
public static final String ACTION_FIN =
"net.sgoliver.intent.action.FIN";
public MiIntentService() {
super("MiIntentService");
}
@Override
protected void onHandleIntent(Intent intent)
{
int iter = intent.getIntExtra("iteraciones", 0);
for(int i=1; i<=iter; i++) {
tareaLarga();
//Comunicamos el progreso
Intent bcIntent = new Intent();
bcIntent.setAction(ACTION_PROGRESO);
bcIntent.putExtra("progreso", i*10);
sendBroadcast(bcIntent);

2. }
Intent bcIntent = new Intent();
bcIntent.setAction(ACTION_FIN);
sendBroadcast(bcIntent);
}
private void tareaLarga()
{
try {
Thread.sleep(1000);
} catch(InterruptedException e) {}
}
}