LocationManager.isProviderEnabled (LocationManager.NETWORK_PROVIDER) is always false

 
package com.jt.classlibrary; 

import java.util.List; 

import android.app.Service; 
import android.content.BroadcastReceiver; 
import android.content.Context; 
import android.content.Intent; 
import android.content.IntentFilter; 
import android.content.SharedPreferences; 
import android.location.Location; 
import android.location.LocationListener; 
import android.location.LocationManager; 
import android.os.AsyncTask; 
import android.os.Binder; 
import android.os.Bundle; 
import android.os.IBinder; 
import android.preference.PreferenceManager; 
import android.provider.Settings.Secure; 
import android.util.Log; 

public class LocationService extends Service implements LocationListener 
{
/ / Private LocationAsyncTask asyncTask = null; 
/ / Private Timer asyncTimer = null; 
private LocationManager lm = null; 
/ / Private Location loc = null; 
private int iAutoUpdateFrequency = 10000; 
private MyBroadcastReceiver broadcast = null; 
private ServiceBinder binder = new ServiceBinder (); 

public class ServiceBinder extends Binder 
{
public LocationService getService () 
{
return LocationService.this; 
} 
} 

@ Override 
public void onCreate () 
{
/ / TODO Auto-generated method stub 
try 
{
SharedPreferences pref = PreferenceManager.getDefaultSharedPreferences (this); 
iAutoUpdateFrequency = pref.getInt ("AUTO_UPDATE_FREQUENCE", 10000); 
} 
catch (Exception ex) 
{
Log.e ("error", "Get SharedPreferences Failed ---->" + ex.getMessage ()); 
} 

try 
{
broadcast = new MyBroadcastReceiver (); 
IntentFilter intentFilter = new IntentFilter (); 
intentFilter.addAction (ConstDef.ACTION_REQUIRE_LOCATION); 
/ / IntentFilter.addAction (ConstDef.ACTION_UPMYLOCATION); 
registerReceiver (broadcast, intentFilter); 
} 
catch (Exception ex) 
{
Log.e ("error", "Register Broadcast Failed ---->" + ex.getMessage ()); 
} 

try 
{
lm = (LocationManager) getSystemService (Context.LOCATION_SERVICE); 
/ * Try 
{
if (! lm.isProviderEnabled (LocationManager.GPS_PROVIDER)) 
{
if (ConstDef.bOpenGPS) 
{
/ / Secure.setLocationProviderEnabled (getContentResolver (), LocationManager.GPS_PROVIDER, true); 
} 
} 

if (! lm.isProviderEnabled (LocationManager.NETWORK_PROVIDER)) 
{
if (ConstDef.bOpenNET) 
{
/ / Secure.setLocationProviderEnabled (getContentResolver (), LocationManager.NETWORK_PROVIDER, true); 
} 
} 
} 
catch (Exception ex) 
{
Log.e ("error", "Open GPS or NET Failed ---->" + ex.getMessage ()); 
} * / 

/ * List  providers = lm.getProviders (false); 

for (int i = 0; i {
Log.i ("info", providers.get (i)); 
} * / 

if (lm.isProviderEnabled (LocationManager.GPS_PROVIDER)) 
{
lm.requestLocationUpdates (LocationManager.GPS_PROVIDER, iAutoUpdateFrequency, 1, this); 
} 
else if (lm.isProviderEnabled (LocationManager.NETWORK_PROVIDER)) 
{
lm.requestLocationUpdates (LocationManager.NETWORK_PROVIDER, iAutoUpdateFrequency, 1, this); 
} 

/ / AsyncTimer = new Timer (); 
} 
catch (Exception ex) 
{
Log.e ("error", "Set LocationManager Failed ---->" + ex.getMessage ()); 
} 

Log.i ("info", "LocationService Create Success"); 
} 

@ Override 
public int onStartCommand (Intent intent, int flags, int startId) {
/ / TODO Auto-generated method stub 
return START_STICKY; 
} 

@ Override 
public void onDestroy () {
/ / TODO Auto-generated method stub 
unregisterReceiver (broadcast); 
lm.removeUpdates (this); 
Log.i ("info", "Service Destroy"); 
} 

@ Override 
public boolean onUnbind (Intent intent) {
/ / TODO Auto-generated method stub 
Log.i ("info", "Service Unbind"); 
return super.onUnbind (intent); 
} 

private class MyBroadcastReceiver extends BroadcastReceiver 
{
@ Override 
public void onReceive (Context context, Intent intent) 
{
/ / TODO Auto-generated method stub 
if (intent.getAction (). equals (ConstDef.ACTION_REQUIRE_LOCATION)) 
{
new LocationAsyncTask () execute ((Void []) null);. 
} 
else if (intent.getAction (). equals (ConstDef.ACTION_UPMYLOCATION)) 
{

} 
} 
} 

private class LocationAsyncTask extends AsyncTask  
{

@ Override 
protected Location doInBackground (Void. .. params) {
/ / TODO Auto-generated method stub 
Location result = null; 

for (int i = 0; i <5; i + +) 
{
if (lm.isProviderEnabled (LocationManager.GPS_PROVIDER)) 
{
result = lm.getLastKnownLocation (LocationManager.GPS_PROVIDER); 
if (result == null) 
{
if (lm.isProviderEnabled (LocationManager.NETWORK_PROVIDER)) 
{
result = lm.getLastKnownLocation (LocationManager.NETWORK_PROVIDER); 
} 
} 
} 
else if (lm.isProviderEnabled (LocationManager.NETWORK_PROVIDER)) 
{
result = lm.getLastKnownLocation (LocationManager.NETWORK_PROVIDER); 
} 

if (result! = null) 
{
break; 
} 
} 

return result; 
} 

@ Override 
protected void onPostExecute (Location result) 
{
/ / TODO Auto-generated method stub 
Intent intent = new Intent (); 
intent.setAction (ConstDef.ACTION_LOCATION_DONE); 
if (result == null) 
{
intent.putExtra ("longitude", -1.0); 
intent.putExtra ("latitude", -1.0); 
} 
else 
{
intent.putExtra ("longitude", result.getLongitude ()); 
intent.putExtra ("latitude", result.getLatitude ()); 
} 
sendBroadcast (intent); 
} 
} 

@ Override 
public void onLocationChanged (Location location) {
/ / TODO Auto-generated method stub 
if (location! = null) 
{
Log.i ("info", "Check Location Changed"); 

Intent intent = new Intent (); 
intent.setAction (ConstDef.ACTION_LOCATION_DONE); 
intent.putExtra ("longitude", location.getLongitude ()); 
intent.putExtra ("latitude", location.getLatitude ()); 
sendBroadcast (intent); 
} 
} 

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

} 

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

} 

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

} 

@ Override 
public IBinder onBind (Intent intent) {
/ / TODO Auto-generated method stub 
Log.i ("info", "Service Bind"); 
return binder; 
} 

} 

lm.isProviderEnabled (LocationManager.NETWORK_PROVIDER) is always false, but I'm really open up the network, GPS can determine, who knows how true?
Reply:
lm = (LocationManager) getSystemService (Context.LOCATION_SERVICE);
I'm here on a direct throw an exception
Reply:
Landlord solved yet, I also encountered the same problem
Reply:
Samsung i9100 made no google service, so do not have that network components, so always returns false, I also want to present a solution! With seeking ah