AlarmManagermgr=(AlarmManager)ctxt.getSystemService(Context.ALARM_SERVICE);Intenti=newIntent(ctxt,AlarmReceiver.class);PendingIntentpi=PendingIntent.getBroadcast(ctxt,0,i,0);mgr.setRepeating(AlarmManager.ELAPSED_REALTIME_WAKEUP,System.currentTimeMillis()+1000,1000,pi);根据安卓文档triggerAtMillistimein