onLocationChanged不会在果冻豆中被触发

Question

我使用以下代码获取位置。它在Android 4.0.4中工作正常，但在4.1.1中没有。谷歌搜索了很多，但没有找到任何解决方案。请帮助我提前谢谢。

mLocationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
    mLocListener = new UserLocationListener(getApplicationContext());

    if (mLocationManager
            .isProviderEnabled(LocationManager.NETWORK_PROVIDER)) {
        mLocationManager.requestLocationUpdates(
                LocationManager.NETWORK_PROVIDER, 1, 0, mLocListener);
    } else if (mLocationManager
            .isProviderEnabled(LocationManager.GPS_PROVIDER)) {
        mLocationManager.requestLocationUpdates(
                LocationManager.GPS_PROVIDER, 1, 0, mLocListener);
    }


public class UserLocationListener implements LocationListener {

Context mContext;
String mCurrLocation = null;
double latitude, longitude;
String locale;

public String getLocale() {
    return locale;
}

public String getmCurrLocation() {
    return mCurrLocation;
}

public double getLatitude() {
    return latitude;
}

public double getLongitude() {
    return longitude;
}

public UserLocationListener(Context _mContext) {
    mContext = _mContext;
}

@Override
public void onLocationChanged(Location location) {

    Geocoder gcd = new Geocoder(mContext, Locale.getDefault());
    List<Address> addresses = null;

    try {
        addresses = gcd.getFromLocation(location.getLatitude(),
                location.getLongitude(), 1);
        longitude = location.getLongitude();
        latitude = location.getLatitude();
        locale = Locale.getDefault().getCountry();
        if (addresses.size() > 0) {
            mCurrLocation = formatAddress(addresses.get(0));
        } else {
            Log.e("LocationListener",
                    "Geocoder backend service not present");
        }

    } catch (IOException e) {

    } catch (NullPointerException e) {
    }

}

/**
 * Formats the Address to a meaningful String representation
 * 
 * @param address
 * @return String
 */
private String formatAddress(Address address) {

    String addr = "";
    StringBuilder sb = new StringBuilder();

    if (address.getAddressLine(0) != null) {
        sb.append(address.getAddressLine(0));
    } else if (address.getSubThoroughfare() != null) {
        sb.append(address.getSubThoroughfare());
    } else if (address.getSubThoroughfare() != null) {
        sb.append(address.getSubThoroughfare());
    } else if (address.getThoroughfare() != null) {
        sb.append(address.getThoroughfare());
    } else if (address.getSubLocality() != null) {
        sb.append(address.getSubLocality() + ",");
    } else if (address.getPremises() != null) {
        sb.append(address.getPremises() + ",");
    } else if (address.getLocality() != null) {
        sb.append(address.getLocality() + ",");
    } else if (address.getSubAdminArea() != null) {
        sb.append(address.getSubAdminArea() + ",");
    } else if (address.getAdminArea() != null) {
        sb.append(address.getAdminArea() + ",");
    } else if (address.getPostalCode() != null) {
        sb.append(address.getPostalCode() + ",");
    } else if (address.getCountryName() != null)
        sb.append(address.getCountryName() + ",");

    addr = sb.toString();

    return addr;
}

@Override
public void onProviderDisabled(String provider) {
    // TODO Auto-generated method stub

}

@Override
public void onProviderEnabled(String provider) {
    // TODO Auto-generated method stub

}

@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
    // TODO Auto-generated method stub

}

}