我正在开发一项后台服务，该服务会在一段时间内轮询服务器。关键是：我有一个调用另一个服务的 IntentService（称为 NotificationsService），但是这个请求的响应没有得到回复。并在 logcat 中出现：
06-19 05:12:00.151: W/MessageQueue(6436): Handler (android.os.Handler) {416659f0} sending message to a Handler on a dead thread
06-19 05:12:00.151: W/MessageQueue(6436): java.lang.RuntimeException: Handler (android.os.Handler) {416659f0} sending message to a Handler on a dead thread
06-19 05:12:00.151: W/MessageQueue(6436): at android.os.MessageQueue.enqueueMessage(MessageQueue.java:196)
06-19 05:12:00.151: W/MessageQueue(6436): at android.os.Handler.sendMessageAtTime(Handler.java:473)
06-19 05:12:00.151: W/MessageQueue(6436): at android.os.Handler.sendMessageDelayed(Handler.java:446)
06-19 05:12:00.151: W/MessageQueue(6436): at android.os.Handler.post(Handler.java:263)
06-19 05:12:00.151: W/MessageQueue(6436): at android.os.ResultReceiver$MyResultReceiver.send(ResultReceiver.java:50)
我在这里看到了类似的问题，但我很困惑（我没有使用任何 AsyncTask，我已经寻找 CommonsWare 代码 wakefullIntent 但我不明白）。
这是 NotificationsService.java 的代码
public class NotificationsService extends IntentService {
private static int TIME_INTERVAL_MILIS=90000;
private static final int REFRESH=10;
private NotificationManager noteManager;
private static List<FlightStatusNote> flights= new ArrayList<FlightStatusNote>();
public NotificationsService(){
super("NotificationsService");
}
@Override
public void onCreate(){
Log.d("notificationsSservice","onCreate");
super.onCreate();
noteManager=(NotificationManager)getSystemService(Context.NOTIFICATION_SERVICE);
}
@Override
protected void onHandleIntent(Intent intent) {
Log.d("NotificationsService","Me llamaron");
Log.d("NotificationsService", "intervalo:"+NotificationsService.TIME_INTERVAL_MILIS);
Log.d("NotificationsService","Itero por cada vuelo registrado para notificar");
for(FlightStatusNote f: flights){
FlightStatus fly=f.getFlight();
Log.d("NotificationsService","Vuelo id:"+fly.getAirlineId()+fly.getNumberFlight());
Intent intentaux=new Intent(Intent.ACTION_SYNC,null,getBaseContext(),FlightStatusService.class);
intentaux.putExtra("airlineFlight", fly.getAirlineId());
intentaux.putExtra("numberFlight",fly.getNumberFlight() );
intentaux.putExtra("receiver", new ResultReceiver(new Handler()) {
@Override
protected void onReceiveResult(int resultCode, Bundle resultData) {
super.onReceiveResult(resultCode, resultData);
Log.d("notificationsService","response received");
if (resultCode == FlightStatusService.STATUS_OK) {
List<FlightStatus> fly = (List<FlightStatus>)resultData.getSerializable("return");
for(FlightStatus f: fly){
int indexNote=flights.indexOf(new FlightStatusNote(f,null));
FlightStatusNote fsNote=flights.get(indexNote);
List<String> changes=fsNote.hasChanged(f);
if(changes==null){
Log.d("notificationsService","changes is null");
}
else{
Log.d("notficationsService", "comething changed");
createNotification(f, changes);
}
}
}
}
});
startService(intentaux);
}
AlarmManager alarmMgr = (AlarmManager) getBaseContext().getSystemService(Context.ALARM_SERVICE);
PendingIntent pendingIntent = PendingIntent.getBroadcast(getBaseContext(), 0, new Intent(getBaseContext(), DealAlarmReceiver.class), 0);
alarmMgr.set(AlarmManager.RTC, System.currentTimeMillis()+NotificationsService.TIME_INTERVAL_MILIS, pendingIntent);
}
}
如果有人可以帮助我，我将不胜感激！干杯!
编辑：我认为问题在于日志“收到的响应”没有出现。