How can I setup multiple alarms in Android?

Question

So far and thanks to this website, I've been able to set up an alarm that will be set up and active, even if I turn of my phone.

Now, I set up a alarm to show a reminder for event A and I need the application to setup another alarm to show another reminder for event B.

I must be doing something wrong, because it only fires the reminder for event A. It seems that once set up, any other alarm is understood as the same one. :-(

Here is the detail of what I am doing in two steps:

1) From an activity I set an alarm that at certain time and date will call a receiver

                Intent intent = new Intent(Activity_Reminder.this,                         AlarmReceiver_SetOnService.class);                  intent.putExtra("item_name", prescription                         .getItemName());                 intent                         .putExtra(                                 "message",                                 Activity_Reminder.this                                         .getString(R.string.notif_text));                 intent.putExtra("item_id", itemId);                 intent.putExtra("activityToTrigg",                         "com.companyName.appName.main.Activity_Reminder");                  PendingIntent mAlarmSender;                  mAlarmSender = PendingIntent.getBroadcast(                         Activity_Reminder.this, 0, intent, 0);                  long alarmTime = dateMgmt.getTimeForAlarm(pickedDate);                 Calendar c = Calendar.getInstance();                 c.setTimeInMillis(alarmTime);                 // Schedule the alarm!                 AlarmManager am = (AlarmManager) getSystemService(ALARM_SERVICE);                 am.set(AlarmManager.RTC_WAKEUP, alarmTime + 15000,                         mAlarmSender); 

2) From the receiver I call a service

        Bundle bundle = intent.getExtras();         String itemName = bundle.getString("item_name");         String reminderOrAlarmMessage = bundle.getString("message");         String activityToTrigg = bundle.getString("activityToTrigg");         int itemId = Integer.parseInt(bundle.getString("item_id"));         NotificationManager nm = (NotificationManager) context.getSystemService("notification");         CharSequence text = itemName + " "+reminderOrAlarmMessage;         Notification notification = new Notification(R.drawable.icon, text,                 System.currentTimeMillis());         Intent newIntent = new Intent();         newIntent.setAction(activityToTrigg);         newIntent.putExtra("item_id", itemId);         CharSequence text1= itemName + " "+reminderOrAlarmMessage;         CharSequence text2= context.getString(R.string.notif_Go_To_Details);         PendingIntent pIntent = PendingIntent.getActivity(context,0, newIntent, 0);         notification.setLatestEventInfo(context, text1, text2, pIntent);         notification.flags = Notification.FLAG_AUTO_CANCEL;         notification.defaults = Notification.DEFAULT_ALL;         nm.notify(itemId, notification); 

Thanks in Advance,

monn3t

Answer 1

Ok, when you set an PendingIntent, you're supposed to assign it a unique ID to it, incase you want to identify it later (for modifying/canceling it)

static PendingIntent    getActivity(Context context, int requestCode, Intent intent, int flags)  //Retrieve a PendingIntent that will start a new activity, like calling Context.startActivity(Intent). static PendingIntent    getBroadcast(Context context, int requestCode, Intent intent, int flags)  //Retrieve a PendingIntent that will perform a broadcast, like calling Context.sendBroadcast(). 

The Request code is that ID.

In your code, you keep resetting the SAME PendingIntent, instead use a different RequestCode each time.

PendingIntent pIntent = PendingIntent.getActivity(context,uniqueRQCODE, newIntent, 0); 

It has to be an integer, i suppose you have a primaryid (itemId) that can identify Alarm A from Alarm B.

Answer 2

You can set up multiple alarms by supplying different request code in pendingIntent.getBroadcast(......)

The approach which I used to setup multiple alarm is that I created a single alarm. I initialized a static integer in alarm setting class which will be incremented each time from my main activity whenever I click on "add alarm" button in my main activity. E.g.

MainActivity.java

public class MainActivity extends AppCompatActivity {  @Override protected void onCreate(Bundle savedInstanceState) {     super.onCreate(savedInstanceState);     setContentView(R.layout.activity_main); }  public void addAlarmClick(View v) {     AlarmActivity.broadcastCode++;     startActivity(new Intent(this, AlarmActivity.class)); } } 

AlarmActivity.java

public class AlarmActivity extends AppCompatActivity {` //........ public static int broadcastCode=0; //........ Intent myIntent = new Intent(AlarmActivity.this, AlarmReceiver.class); pendingIntent = PendingIntent.getBroadcast(AlarmActivity.this,                             broadcastCode, myIntent, 0);