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POHow to tell the age of an Android repeating alarm?
 

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  1. POHow to tell the age of an Android repeating alarm?
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    <p>I have a <code>setRepeating()</code> alarm scheduled that I want to disable in it's <code>BroadcastReceiver</code> if it is of a certain age. I would rather disable it inside of the <code>BroadcastReceiver</code>, so if its possible that would be my first choice.</p> <p>In my <code>Activity</code>:</p> <pre><code>// Start our alarm Intent intent = new Intent(Main.this, Receiver.class); long firstTime = SystemClock.elapsedRealtime(); firstTime += 2 * 1000; // start in 2 seconds long interval = 2000; // 2 seconds for testing intent.putExtra("start", firstTime); // Tell the receiver the creation date (not working) PendingIntent sender = PendingIntent.getBroadcast(Main.this, 0, intent, 0); // Schedule the alarm! AlarmManager am = (AlarmManager) getSystemService(ALARM_SERVICE); am.setRepeating(AlarmManager.ELAPSED_REALTIME_WAKEUP, firstTime, interval, sender); </code></pre> <p>In my <code>BroadcastReceiver</code>:</p> <pre><code>@Override public void onReceive(Context context, Intent intent) { // ... alarm stuff long now = SystemClock.elapsedRealtime(); Log.i("", "Alarm Running for " + (now - intent.getLongExtra("start", now))); //getLongExtra() defaults to 'now' because there is no extra 'start' } </code></pre> <p>In LogCat I see this..</p> <pre><code>08-19 11:01:04.420: INFO/(1371): Alarm Running for 0 08-19 11:01:06.420: INFO/(1371): Alarm Running for 0 08-19 11:01:08.430: INFO/(1371): Alarm Running for 0 08-19 11:01:10.420: INFO/(1371): Alarm Running for 0 08-19 11:01:12.419: INFO/(1371): Alarm Running for 0 08-19 11:01:14.419: INFO/(1371): Alarm Running for 0 08-19 11:01:16.420: INFO/(1371): Alarm Running for 0 08-19 11:01:18.420: INFO/(1371): Alarm Running for 0 </code></pre> <p>Now this to me means that the intent does not contain the "start" extra that I gave it with <code>putExtra()</code>.</p> <p>How do I tell the age of an alarm, either by intent extras or other methods?</p> <p>Edit: I can find out how many times the Receiving class has received the broadcast by creating a <code>static int</code> and incrementing it every time the alarm code executes, but this is not a good way to find the "age".</p> <p>Update: In combination from the answer provided by Mobius, you must also pass <code>PendingIntent.FLAG_UPDATE_CURRENT</code> in <code>PendingIntent.getBroadcast()</code>, like follows:</p> <pre><code>PendingIntent sender = PendingIntent.getBroadcast(Main.this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT); </code></pre>
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