protected void criarNotificacao(Context context, MensagemAlerta messagesAlerts, Class<?> activity) {

    NotificationManager notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);

    Notification notificaction = new Notification(R.drawable.ic_launcher,
            messagesAlerts.getTitle(), System.currentTimeMillis());

    notificaction.sound = Uri.withAppendedPath(MediaStore.Audio.Media.INTERNAL_CONTENT_URI, "6");

    notificaction.flags |= Notification.FLAG_INSISTENT;

    notificaction.flags |= Notification.FLAG_AUTO_CANCEL;

    PendingIntent p = PendingIntent.getActivity(this, 0,
            new Intent(this.getApplicationContext(), MyActivity.class), 0);

    notificaction.setLatestEventInfo(this, messagesAlerts.getSubTitle(),
            messagesAlerts.getBody(), p);

    notificaction.vibrate = new long[] { 100, 1000, 1000, 1000 };

    notificationManager.notify(R.string.app_name, notificaction);
}

public class MensagemAlerta {

private CharSequence title;

private CharSequence body;

private CharSequence subTitle;

public MensagemAlerta(CharSequence title, CharSequence body,

                      CharSequence subTitle) {

    this.title = title;

    this.body = body;

    this.subTitle = subTitle;

}

public CharSequence getTitle() {

    return title;

}

public void setTitle(CharSequence title) {

    this.title = title;

}

public CharSequence getBody() {

    return body;

}

public void setBody(CharSequence body) {

    this.body = body;

}

public CharSequence getSubTitle() {

    return subTitle;

}

public void setSubTitle(CharSequence subTitle) {

    this.subTitle = subTitle;

}}