Adding a Checkbox to Alarm Manager in Android

I'm a newbie to Android programming. I'm following a tutorial about AlarmManager; in the tutorial there is a CheckBox which if checked, the alarm will go off every 24 hours.

I want to add another CheckBox to go off every week, but I don't know how to add it to the code.

Any help would be greatly appreciated.

The code is as follows:

public class AndroidTimeActivity extends Activity {

TimePicker myTimePicker;
Button buttonstartSetDialog;
Button buttonCancelAlarm;
TextView textAlarmPrompt;

TimePicker timePicker;
CheckBox optRepeat;

final static int RQS_1 = 1;

/**
 * Called when the activity is first created.
 */
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    timePicker = (TimePicker) findViewById(R.id.picker);
    optRepeat = (CheckBox) findViewById(R.id.optrepeat);
    textAlarmPrompt = (TextView) findViewById(R.id.alarmprompt);

    buttonstartSetDialog = (Button) findViewById(R.id.startSetDialog);
    buttonstartSetDialog.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
            Calendar calNow = Calendar.getInstance();
            Calendar calSet = (Calendar) calNow.clone();

            calSet.set(Calendar.HOUR_OF_DAY, timePicker.getCurrentHour());
            calSet.set(Calendar.MINUTE, timePicker.getCurrentMinute());
            calSet.set(Calendar.SECOND, 0);
            calSet.set(Calendar.MILLISECOND, 0);

            if (calSet.compareTo(calNow) <= 0) {
                //Today Set time passed, count to tomorrow
                calSet.add(Calendar.DATE, 1);
            }

            setAlarm(calSet, optRepeat.isChecked());

        }
    });

    buttonCancelAlarm = (Button) findViewById(R.id.cancel);
    buttonCancelAlarm.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View arg0) {
            cancelAlarm();
        }
    });

}

private void setAlarm(Calendar targetCal, boolean repeat) {

    Intent intent = new Intent(getBaseContext(), AlarmReceiver.class);
    PendingIntent pendingIntent = PendingIntent.getBroadcast(getBaseContext(), RQS_1, intent, 0);
    AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
    alarmManager.set(AlarmManager.RTC_WAKEUP, targetCal.getTimeInMillis(), pendingIntent);

    if (repeat) {
        alarmManager.setRepeating(AlarmManager.RTC_WAKEUP,
                targetCal.getTimeInMillis(),
                TimeUnit.HOURS.toMillis(24),
                pendingIntent);

        textAlarmPrompt.setText(
                "\n\n***\n"
                        + "Alarm is set@ " + targetCal.getTime() + "\n"
                        + "Repeat every 5 minutes\n"
                        + "***\n");
    } else {
        alarmManager.set(AlarmManager.RTC_WAKEUP,
                targetCal.getTimeInMillis(),
                pendingIntent);

        textAlarmPrompt.setText(
                "\n\n***\n"
                        + "Alarm is set@ " + targetCal.getTime() + "\n"
                        + "One shot\n"
                        + "***\n");
    }

}

private void cancelAlarm() {

    textAlarmPrompt.setText(
            "\n\n***\n"
                    + "Alarm Cancelled! \n"
                    + "***\n");

    Intent intent = new Intent(getBaseContext(), AlarmReceiver.class);
    PendingIntent pendingIntent = PendingIntent.getBroadcast(getBaseContext(), RQS_1, intent, 0);
    AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
    alarmManager.cancel(pendingIntent);

}

}