我做了一个应该得到纬度和经度的后台服务，但由于某种原因它不能正常工作：
public class BackgroundLocationService extends IntentService {
private static final String TAG = "Location Service";
private LocationManager locManager;
private LocationListener locListener = new MyLocationListener();
public static Context context;
private String latitude;
private String longitude;
Messenger messenger;
Timer t = new Timer();
public BackgroundLocationService() {
super("backgroundLocationService");
locManager = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
locationProviderInit();
}
private void locationProviderInit() {
boolean gps_enabled;
boolean network_enabled;
gps_enabled = locManager.isProviderEnabled(LocationManager.GPS_PROVIDER);
network_enabled = locManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
if (gps_enabled) {
locManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, locListener);
}
if (network_enabled) {
locManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0, locListener);
}
}
@Override
protected void onHandleIntent(Intent intent) {
messenger = (Messenger) intent.getExtras().get("handler");
t.schedule(new TimerTask() {
@Override
public void run() {
locationProviderInit();
if (latitude != null && longitude != null) {
Log.i(TAG, "Lat and Long are: "+latitude+" - "+longitude);
} else {
Log.i(TAG, "Lat and Long are null");
}
}
}, 0, 7000);
}
class MyLocationListener implements LocationListener {
public void onLocationChanged(Location location) {
if (location != null) {
longitude = Double.toString(location.getLongitude());
latitude = Double.toString(location.getLatitude());
}
}
public void onProviderDisabled(String arg) {}
public void onProviderEnabled(String arg) {}
public void onStatusChanged(String provider, int status, Bundle extras) {}
}
}
MyLog 猫：
01-31 15:26:54.639: I/Location Service(2347): Lat and Long are null
01-31 15:26:58.057: I/Location Service(2347): Lat and Long are null
01-31 15:27:01.643: I/Location Service(2347): Lat and Long are null
01-31 15:27:05.057: I/Location Service(2347): Lat and Long are null
01-31 15:27:08.639: I/Location Service(2347): Lat and Long are null
01-31 15:27:12.065: I/Location Service(2347): Lat and Long are null
01-31 15:27:15.643: I/Location Service(2347): Lat and Long are null
01-31 15:27:19.053: I/Location Service(2347): Lat and Long are null
01-31 15:27:22.639: I/Location Service(2347): Lat and Long are null
01-31 15:27:26.057: I/Location Service(2347): Lat and Long are null
01-31 15:27:29.643: I/Location Service(2347): Lat and Long are null
01-31 15:27:33.061: I/Location Service(2347): Lat and Long are null
01-31 15:27:36.639: I/Location Service(2347): Lat and Long are null
01-31 15:27:40.061: I/Location Service(2347): Lat and Long are null
大约 3-5 分钟后，它得到了位置：
01-31 15:34:48.404: I/Location Service(2417): Lat and Long are: 47.479290815904015 - 19.086711048181996
01-31 15:34:55.408: I/Location Service(2417): Lat and Long are: 47.479290815904015 - 19.086711048181996
01-31 15:35:02.404: I/Location Service(2417): Lat and Long are: 47.479290815904015 - 19.086711048181996
01-31 15:35:09.400: I/Location Service(2417): Lat and Long are: 47.479290815904015 - 19.086711048181996
01-31 15:35:16.400: I/Location Service(2417): Lat and Long are: 47.479290815904015 - 19.086711048181996
01-31 15:35:23.400: I/Location Service(2417): Lat and Long are: 47.479290815904015 - 19.086711048181996
我怎样才能让它更快？我不想在获得位置之前等待 5 分钟。有活跃的互联网连接，它不应该在空位置的几分钟内向我发送垃圾邮件。定位对我来说是个谜，它永远不会为我做我想要的事情，而且总是让我感到随机性。我以多种方式构建了它，但我无法编写一个很好的代码。
请帮忙，我应该改变什么？