GPS应用程序在Karbonn Android手机上运行良好，但在三星和Micromax Android手机上运行不正常

我制作了一个Android应用程序，使用A-GPS获取纬度和经度。当我在Karbonn A21手机上测试我的应用程序时，它运行良好，但当我在Micromax A116和三星Galaxy duos y上测试它时，我的应用程序无法找到它的位置。为什么?

我正在写下面的代码

 package com.example.gpsutility;





   public class GPSActivity extends Activity implements OnClickListener {
 Button search,exit;
 TextView location_tv;
 GpsService gps;
 double latitude,longitude;
 ProgressDialog progressBar;
 int progressBarStatus = 0;
 Handler progressBarHandler;




@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_gps);
    search = (Button)findViewById(R.id.search_button);
    exit = (Button)findViewById(R.id.exit_button);
    location_tv =(TextView)findViewById(R.id.textview2);
    gps = new GpsService(this);
    search.setOnClickListener(this);
    exit.setOnClickListener(this);


}

@Override
public void onClick(View v) {
    // TODO Auto-generated method stub
    if(v==search)

    { gps = new GpsService(this);
        progressBarHandler = new Handler();

         progressBar = new ProgressDialog(this);
         progressBar.setCancelable(true);
         progressBar.setMessage("getting location...");
         progressBar.setProgressStyle(ProgressDialog.STYLE_SPINNER);
         progressBar.setProgress(0);
         progressBar.setMax(100);

         progressBar.show();




        new Thread(new Runnable() {
              public void run() {
                while (progressBarStatus < 100) {

                  progressBarStatus = getLocation();

                  try {
                    Thread.sleep(10000);
                  } catch (InterruptedException e) {
                    e.printStackTrace();
                                          }

                  progressBarHandler.post(new Runnable() {
                    public void run() {
                      progressBar.setProgress(progressBarStatus);
                      Log.e("PROGRESSBARSTATUS",progressBarStatus+"" );
                      progressBar.setMessage(latitude+ "and"+ longitude);

                    }
                  });
                }

                if (progressBarStatus >= 100) {
                    try {
                        Thread.sleep(1000);
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                    runOnUiThread(new Runnable() {
                        @Override
                        public void run() {
                             Log.e("DISMISS",progressBarStatus+"" );
                            progressBar.dismiss();

                         location_tv.setText(latitude +"/"+longitude);
                        }
                    });


                }
              }
              }).start();




}


}


        private int getLocation()
        {

            latitude = gps.getLatitude();
            longitude = gps.getLongitude();
            Log.e("LATITUDE",latitude+"" );
            if(latitude > 0 && longitude > 0)
                return 100;
            else
                return 0;

        }

}

---

您是否使用任何特定的/第三方库或仅使用Android SDK包？在代码无法按预期工作的设备上，是否可以运行其他位置应用程序？这可能是因为在这些设备上实际获取GPS卫星数据需要花费更多的时间吗？我只使用android sdk，在我的micromax手机中，如果我打开谷歌地图一次，然后关闭它，我就能获取位置。请输入一些片段。

   package com.example.gpsutility;



   public class GpsService extends Service implements LocationListener {

private final Context mContext;
   boolean isGPSEnabled = false;
   boolean isNetworkEnabled = false;
   boolean canGetLocation = false;
   Location location;
   double latitude;
   double longitude;
   public static final long MIN_DISTANCE_CHANGE_FOR_UPDATES=10;
   public static final long MIN_TIME_BW_UPDATES=1000*60*1;
   protected LocationManager locationManager;


     public GpsService(Context context)
     {
         this.mContext=context;
         getLocation();
     }
    @Override
    public void onLocationChanged(Location location) {
        // TODO Auto-generated method stub

    }

    @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

    }

    @Override
    public IBinder onBind(Intent arg0) {
        // TODO Auto-generated method stub
        return null;
    }

    public Location getLocation()
    {
        try {
            locationManager =(LocationManager) mContext.getSystemService(LOCATION_SERVICE);
            isGPSEnabled=locationManager.isProviderEnabled(locationManager.GPS_PROVIDER);

            isNetworkEnabled = locationManager.isProviderEnabled(locationManager.NETWORK_PROVIDER);

            if(!isGPSEnabled || !isNetworkEnabled)
            {
                showSettingsAlert();
            }
            else {
                this.canGetLocation=true;
                if(isNetworkEnabled) 
                 {
                  locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER,
                          MIN_TIME_BW_UPDATES,
                          MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
                  Log.d("Network", "Network");
                  if (locationManager != null) {
                      location = locationManager
                              .getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
                      if (location != null) {
                          latitude = location.getLatitude();
                          longitude = location.getLongitude();
                      }
                }
                 }
                if (isGPSEnabled) {
                    if (location == null) {
                        locationManager.requestLocationUpdates(
                                LocationManager.GPS_PROVIDER,
                                MIN_TIME_BW_UPDATES,
                                MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
                        Log.d("GPS Enabled", "GPS Enabled");
                        if (locationManager != null) {
                            location = locationManager
                                    .getLastKnownLocation(LocationManager.GPS_PROVIDER);
                            if (location != null) {
                                latitude = location.getLatitude();
                                longitude = location.getLongitude();
                            }
                        }
                    }
                }
            }

        } catch (Exception e) {
            e.printStackTrace();
        }

        return location;
    }


     public double getLatitude(){
            if(location != null){
                latitude = location.getLatitude();
            }

            // return latitude
            return latitude;
        }

        /**
         * Function to get longitude
         * */
        public double getLongitude(){
            if(location != null){
                longitude = location.getLongitude();
            }

            // return longitude
            return longitude;
    }
        public boolean canGetLocation() {
            return this.canGetLocation;
        }

        public void showSettingsAlert(){
            AlertDialog.Builder alertDialog = new AlertDialog.Builder(mContext);

            // Setting Dialog Title
            alertDialog.setTitle("GPS  settings");

            // Setting Dialog Message
            alertDialog.setMessage("GPS is not enabled. Do you want to go to settings menu?");

            // Setting Icon to Dialog
            //alertDialog.setIcon(R.drawable.delete);

            // On pressing Settings button
            alertDialog.setPositiveButton("Settings", new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog,int which) {
                    Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
                    mContext.startActivity(intent);
                }
            });

            // on pressing cancel button
            alertDialog.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int which) {
                dialog.cancel();
                }
            });

            // Showing Alert Message
            alertDialog.show();
        }



        }