Broadcast Receiver Constantly Restarting

Question

I'm making a widget which I want to update every second (It's like a countdown/timer widget), so I'm using a AlarmManager and a broadcast reciever to achieve this without waking the phone and using up all the battery, but I keep getting a constant stream of errors in LogCat when running the widget:

08-18 18:40:43.368     390-1988/system_process I/ActivityManager: Process com.dysign.livetubecountdown (pid 9784) has died.
08-18 18:40:44.282      390-414/system_process I/ActivityManager: Start proc com.dysign.livetubecountdown for broadcast com.dysign.livetubecountdown/.WidgetAlarmManager: pid=9809 uid=10144 gids={50144, 3003, 1028}
08-18 18:40:44.306    9809-9809/com.dysign.livetubecountdown E/Trace: error opening trace file: No such file or directory (2)

As you can see, the process keeps on dying and then restarting, this happens when the phone is both awake and asleep.

Here is how I am starting the AlarmManager (This is inside the widget provider class):

@Override
public void onEnabled(Context context) {
    super.onEnabled(context);
    AlarmManager am=(AlarmManager)context.getSystemService(Context.ALARM_SERVICE);
    Intent intent = new Intent(context, WidgetAlarmManager.class);
    PendingIntent pi = PendingIntent.getBroadcast(context, 0, intent, 0);
    am.setRepeating(AlarmManager.RTC, System.currentTimeMillis() + 1000, 1000 , pi);
}

And this is the Broadcast Receiver code:

@Override
public void onReceive(Context context, Intent intent) {
    RemoteViews remoteViews = new RemoteViews(context.getPackageName(), R.layout.widget_main);

    DateFormat format = SimpleDateFormat.getTimeInstance(SimpleDateFormat.MEDIUM, Locale.getDefault());
    remoteViews.setTextViewText(R.id.widgetTextView, "TIME = " + format.format(new Date()));

    ComponentName thisWidget = new ComponentName(context, Widget.class);
    AppWidgetManager manager = AppWidgetManager.getInstance(context);
    manager.updateAppWidget(thisWidget, remoteViews);
}

Any help would be much appreciated, thank you, SO!

Answer 1

As you can see, the process keeps on dying and then restarting, this happens when the phone is both awake and asleep.

In terms of the process dying and restarting, that's not completely surprising. Once your onReceive() method returns, Android is welcome to terminate your process whenever it wants to.

In terms of "both awake and asleep", something else is keeping the device awake. By definition, if the device is asleep, the CPU is not executing instructions, and hence there are no logging statements. You can use adb shell dumpsys power to see who is holding a WakeLock.