android intents alarmmanager

Question

Hi, I am trying to create intents that will be set using alarmmanager. Currently, I can do this with one intent, add extra data to it (strings, but i send them as one string with a seperator), and everything works fine and goes off at the correct time. However, when I try to send multiple intents like this, they are overwritten and only one goes off at the correct time. How can i structure my intents so that they appear different to the alarmmanager (i think they are getting deleted when filterIntent() is run).

long story short- putExtra() makes all the intents look the same still... how can i make them look different so they wont get deleted (and keep track of them in case i want to delete a specific one)

Answer 1

This is how I scheduled updates for my widgets. Each one allowed to be unique because they have a unique widget id number.

Intent widgetUpdate = new Intent();
widgetUpdate.setAction(AppWidgetManager.ACTION_APPWIDGET_UPDATE);
widgetUpdate.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, new int[] { appWidgetId });
widgetUpdate.putExtra(EXTRA_POSITION,0);
widgetUpdate.putExtra(EXTRA_URL, URL);
// make this pending intent unique by adding a scheme to it
widgetUpdate.setData(Uri.withAppendedPath(Uri.parse(URI_SCHEME + "://widget/id/"), String.valueOf(appWidgetId)));
PendingIntent newPending = PendingIntent.getBroadcast(context, 0, widgetUpdate, PendingIntent.FLAG_UPDATE_CURRENT);
// schedule the updating
AlarmManager alarms = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
alarms.setRepeating(AlarmManager.ELAPSED_REALTIME, SystemClock.elapsedRealtime(), updateRateSeconds * 1000, newPending);

Answer 2

According to the docs, AlarmManager checks if two Intents are equivalent using filterEquals(). Check out the docs for filterEquals() to see how it decides whether two Intents are equivalent. Also, chris324's solution is a pretty good one.