难以回复(第二个用户的位置)第一个用户的消息?



可能重复:
将用户1的位置发送给用户2和用户2';用户1的位置?

我有一个应用程序,其中有两个用户。用户1向用户2发送一些包含其位置的消息,作为回报,用户2向用户1发送一条包含其位置信息的消息。我可以将消息从用户1发送给用户2和受害者。用户1的消息按照应用程序中的预期包含其位置,但用户2的消息不是包含其位置而是包含用户1的位置,这与应用程序的预期相反。有人能告诉我哪里做错了吗?

这是我的代码:

public class ReceivelocationActivity extends BroadcastReceiver  {
    private static final String TAG = "LocationActivity";
    private static final String LOCATION_SERVICE = null;
    LocationManager locationManager; 
    Geocoder geocoder; 
     double longitude,latitude;
    @Override
    public void onReceive(Context context, Intent intent) {
        // TODO Auto-generated method stub
        Intent m=new Intent(context, ReceivelocationActivity.class);    
          PendingIntent pi=PendingIntent.getBroadcast(context, 0, m, 0); 
        Bundle bundle = intent.getExtras();        
        SmsMessage[] msgs = null;
        String str = ""; 
        String str2="";
        String str3="";
        String autoReplyToken = "Request_Accepted";
        if (bundle != null)
        {
            //---retrieve the SMS message received---
            Object[] pdus = (Object[]) bundle.get("pdus");
            msgs = new SmsMessage[pdus.length];            
            for (int i=0; i<msgs.length; i++){
                msgs[i] = SmsMessage.createFromPdu((byte[])pdus[i]);                
                str += "SMS from " msgs[i].getOriginatingAddress();                     
                str2=msgs[i].getOriginatingAddress();
                str += " :";
                str += msgs[i].getMessageBody().toString();
             str3=msgs[i].getMessageBody().toString();
                str += "n";        
            }
            //---display the new SMS message---
            Toast.makeText(context, str, Toast.LENGTH_SHORT).show();
          //  int number=Integer.parseInt(str2);

            SmsManager sms = SmsManager.getDefault();
            boolean isAutoReply = str3.startsWith(autoReplyToken);

            locationManager = (LocationManager)this.getSystemService(LOCATION_SERVICE); 
            geocoder = new Geocoder(this); 
            Location location = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);

            if (location != null) {
              Log.d(TAG, location.toString());
               this.onLocationChanged(location); 
              }

            String msg = Double.toString(latitude) + " " +Double.toString(longitude) ; 
            if (!isAutoReply) {
                String autoReplyText = autoReplyToken + msg;
                sms.sendTextMessage(str2, null, autoReplyText, pi, null);
            }

         //   sms.sendTextMessage(str2, null, "Whats up", pi, null);
        }                 
    }
    public void onLocationChanged(Location location) {
        // TODO Auto-generated method stub

          latitude=location.getLatitude();
       longitude=location.getLongitude();

    }
}

如果getLastKnownLocation()不知道一个好的位置,它可能会返回null,如果没有指定位置,模拟器也会返回null。如果你不是目前的职位,你必须准备等待并注册一个监听器:

locationManager.requestLocationUpdates(LocationManager.GPS, 20000, 1, yourLocationListener);

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