Anybody here? On Mar 26, 10:30 pm, Tako Au <[email protected]> wrote: > I have a terrible bug in my widget. The widget is waken up using an > AlarmManager (the update interval is chosen by users, ranging from 30 > mins to 2 hours) to grab some data from the Internet and display it on > the widget. I do not hold a wakelock since if the phone sleeps, just > let it sleeps. There's no way to update the information since nobody > will see it. > If I put the phone in the basement (has no wi-fi or cell signal) for > about an hour. the phone will definitely not update anything. > However, when I get it back from the basement, the cell network could > never be recovered again no matter how long I have waited (it just get > an X on the cell signal icon on the notification bar) that I must > restart the phone. May I know if a partial wake lock must be held on > checking network availability? > > Your help is highly appreciated. Please find the code skeleton as > below: > > public void onReceive(Context context, Intent intent) { > ...... > Intent intent = new Intent(context, UpdateAppWidget.class); > context.startService(intent); > ...... > } > > public static class UpdateAppWidget extends Service { > @Override > public void onStart(Intent intent, int startId) { > ...... > ConnectivityManager cm = (ConnectivityManager) > context.getSystemService(Context.CONNECTIVITY_SERVICE); > if > (cm.getNetworkInfo(ConnectivityManager.TYPE_MOBILE).isAvailable() || > > cm.getNetworkInfo(ConnectivityManager.TYPE_WIFI).isAvailable()) { > ......Grab something in the net....... > } > > ...... > // Make another alarm for next update > Intent widgetUpdate = new Intent(); > > widgetUpdate.setAction(AppWidgetManager.ACTION_APPWIDGET_UPDATE); > > widgetUpdate.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, new > int[]{widgetId}); > > widgetUpdate.setData(Uri.withAppendedPath(Uri.parse(URI_HEADER), > String.valueOf(widgetId))); > PendingIntent newPending = > PendingIntent.getBroadcast(this, 0, > widgetUpdate, pendingIntent.FLAG_UPDATE_CURRENT); > AlarmManager alarm = (AlarmManager) > this.getSystemService(Context.ALARM_SERVICE); > alarm.set(AlarmManager.RTC, > System.currentTimeMillis() + 1000 * > currentValue, newPending); > > // Refresh the widget > manager.updateAppWidget(widgetId, views); > > // Kill the service after done > this.stopSelf(); > } > }
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