how can i get the repeat alarm for week days using alarm manager in android?

Question

Hi i am new to android i am developing alarm application for that i need to invoke alarm repeatedly for the same time in different days selected by the user. what i meen if i set alarm time as 10AM and repeat option as sunday, monday, saturday the alarm will be invoked on every sunday,monday,saturday.

Here i am using the code to invoke the alarm

AlarmManager am = (AlarmManager)getSystemService(ALARM_SERVICE);
                Intent intent = new Intent(Alarm.this, OneShotAlarm.class);  //here i am calling broad cast receiver to invoke alarm

                 PendingIntent sender = PendingIntent.getBroadcast(Alarm.this, requestCode, intent, 0);
                 Calendar calendar = Calendar.getInstance();
calendar.set(Calender.HOUR_OF_DAY,10); 
                am.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), sender);

By using this code i am invoking present day at 10AM.But my gole is need to invoke the alarm for selected days at 10AM.

Here i have another question please help for this also. When i am trying to put the passed time the alarm will be invoked for the current time. How can i give the past time. i mean when i am at 11AP i am need to give 9AM.

Please suggest me if there is any way. Thanks in advance.

Answer 1

Please Write below Code in your Broadcast Receiver Class, it will solve your problem.

public class MyBroadcastReceiver extends BroadcastReceiver {
    DBAdapter mDba;
    SQLiteDatabase mDb;
    Ringtone rt;
    MediaPlayer mp;
    AlertDialog.Builder alertbox;
    Context ctx;

    @Override
    public void onReceive(Context context, Intent intent) {

        DBHelper mDbh = new DBHelper(context, null, null, 1);
        mDb = mDbh.getWritableDatabase();
        mDb.setLockingEnabled(true);
        mDba = new DBAdapter(context);
        mDba.open();
        Cursor cr = mDb.query("mReminderEntry", null, null, null, null,
                null, null);
        if (cr.equals(null)) {
            System.out.println("No Data Found");
        } else {
            Date d = new Date();
            System.out.println("Current Hour is:- " + d.getHours());
            System.out.println("Current Minute is:- " + d.getMinutes());
            Calendar calendar = Calendar.getInstance();
            int day = calendar.get(Calendar.DAY_OF_WEEK);
            String today = null;
            if (day == 2) {
                today = "Monday";
            } else if (day == 3) {
                today = "Tuesday";
            } else if (day == 4) {
                today = "Wednesday";
            } else if (day == 5) {
                today = "Thursday";
            } else if (day == 6) {
                today = "Friday";
            } else if (day == 7) {
                today = "Saturday";
            } else if (day == 1) {
                today = "Sunday";
            }
            System.out.println("Today is:- " + today);

            int system_hour = d.getHours();
            int system_minute = d.getMinutes();
            cr.moveToFirst();
            for (int i = 0; i < cr.getCount(); i++) {
                if (cr.getString(3).equals(system_hour + ":" + system_minute)
                        && cr.getString(1).equals("Daily")) {

                    System.out.println("Matched");
                    Intent scheduledIntent = new Intent(context, MyScheduledActivity.class);
                    scheduledIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                    context.startActivity(scheduledIntent);

                    break;

                } else if (cr.getString(3).equals(
                        system_hour + ":" + system_minute)
                        && cr.getString(1).equals(today)) {

                    Intent scheduledIntent = new Intent(context, MyScheduledActivity.class);
                    scheduledIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                    context.startActivity(scheduledIntent);

                    System.out.println("Matched");

                    break;
                } else {
                    System.out.println("No Matching");
                }
                cr.moveToNext();
            }
        }
        cr.close();
        mDba.close();
    }
}

If U have any issue regarding that then tell me.