title: Sending double type data from fragment to fragment showing null pointer exception
body: <p>I have MapActivity &amp; LocationSendActivity which extends from fragment.
  When Passing double type  data from MapActivity to LocationSendActivity it shows error <strong>"java.lang.NullPointerException".Data in MapActivity</strong> </p>
  
  <pre><code> LocationSendActivity frag=new LocationSendActivity();
          Bundle bnd1=new Bundle();
          bnd1.putDouble("lat", latitude);
          bnd1.putDouble("lng", longitude);
          frag.setArguments(bnd1);
  </code></pre>
  
  <p>Data in LocationActivity is</p>
  
  <pre><code>Bundle bnd=this.getArguments();
          latt=bnd.getDouble("lat");
          lngt=bnd.getDouble("lng")
  </code></pre>
  
  <p>MapActivity..........</p>
  
  <pre><code>package com.example.map;
  
  import com.google.android.gms.maps.CameraUpdateFactory;
  import com.google.android.gms.maps.GoogleMap;
  import com.google.android.gms.maps.SupportMapFragment;
  import com.google.android.gms.maps.model.BitmapDescriptorFactory;
  import com.google.android.gms.maps.model.LatLng;
  import com.google.android.gms.maps.model.MarkerOptions;
  
  import android.content.Context;
  import android.location.Criteria;
  import android.location.Location;
  import android.location.LocationManager;
  import android.net.wifi.WifiManager;
  import android.os.Bundle;
  import android.support.v4.app.DialogFragment;
  import android.support.v4.app.Fragment;
  import android.support.v4.app.FragmentManager;
  import android.util.Log;
  import android.view.InflateException;
  import android.view.LayoutInflater;
  import android.view.View;
  import android.view.ViewGroup;
  
  public class MapActivity extends Fragment {
      private GoogleMap gmap;
      public SupportMapFragment smf;
      public double latitude,longitude;
      public static View view;
      private FragmentManager fm;
      public boolean wifi,gps,network,val;
  
      public void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
      }
  
      public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState){
          super.onCreate(savedInstanceState);
          if (view != null) {
              ViewGroup parent = (ViewGroup) view.getParent();
              if (parent != null)
                  parent.removeView(view);
           }
          try{
          view = inflater.inflate(R.layout.map, container, false);
  
          try{
              initializemap();
              gmap.setMyLocationEnabled(true);
              gmap.getUiSettings().setZoomControlsEnabled(true);
              gmap.getUiSettings().setMyLocationButtonEnabled(true);
  
              // Get LocationManager object from System Service LOCATION_SERVICE
              LocationManager locationManager = (LocationManager) getActivity().getSystemService(Context.LOCATION_SERVICE);
  
              // Create a criteria object to retrieve provider
              Criteria criteria = new Criteria();
  
              // Get the name of the best provider
              String provider = locationManager.getBestProvider(criteria, true);
  
              // Get Current Location
              Location myLocation = locationManager.getLastKnownLocation(provider);
  
              //set map type
              //gmap.setMapType(GoogleMap.MAP_TYPE_HYBRID);
  
              // Get latitude of the current location
              latitude = myLocation.getLatitude();
  
              // Get longitude of the current location
              longitude = myLocation.getLongitude();
  
              // Create a LatLng object for the current location
              LatLng latLng = new LatLng(latitude, longitude);      
  
              // Show the current location in Google Map        
              gmap.moveCamera(CameraUpdateFactory.newLatLng(latLng));
  
              // Enable / Disable Compass icon
              gmap.getUiSettings().setCompassEnabled(true);
  
              // Enable / Disable Rotate gesture
              gmap.getUiSettings().setRotateGesturesEnabled(true);
  
              //Set zooming control on goole to view location
              gmap.animateCamera(CameraUpdateFactory.newLatLngZoom(latLng, 15));
  
             //Add marker at current position
               MarkerOptions marker=new MarkerOptions();
               marker.icon(BitmapDescriptorFactory.fromResource(R.drawable.arr));
             //marker.position(latLng).anchor(1,1).rotation(90);
               gmap.addMarker(marker.position(new LatLng(latitude, longitude)).title("You are here!"));
             //Remove default marker
             //gmap.clear();  
              }catch(Exception e){
                   e.printStackTrace();
              }
          }catch (InflateException e) {
              // TODO: handle exception
          }
          //Dialog call
          showDialog();
          Log.e("latlng", Double.toString(latitude));
          //Set data for LocationSendActivity
          LocationSendActivity frag=new LocationSendActivity();
          Bundle bnd1=new Bundle();
          bnd1.putDouble("lat", latitude);
          bnd1.putDouble("lng", longitude);
          frag.setArguments(bnd1);
  
          return view;
      }
  
      public void showDialog() {
          //Check network
           LocationManager lm = (LocationManager) getActivity().getSystemService(Context.LOCATION_SERVICE);
           try{
               network = lm.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
              }catch(Exception ex){}
          //Check Wifi
           WifiManager wfm =(WifiManager)getActivity().getSystemService(Context.WIFI_SERVICE);
           wifi = wfm.isWifiEnabled();
          //Check Gps
          try{
              gps = lm.isProviderEnabled(LocationManager.GPS_PROVIDER);
              }catch(Exception ex){}
  
          //call dialog class
          val=network &amp;&amp; wifi &amp;&amp; gps;
          if(!val){
              DialogFragment dial =new  AlertDialogFragment();
              Bundle bnd=new Bundle();
              bnd.putBoolean("net", network);
              bnd.putBoolean("wi", wifi);
              bnd.putBoolean("gps",gps);
              dial.setArguments(bnd); 
              dial.show(getFragmentManager(),"dialogShow");   
          }                                 
      }
  
      public void onResume(){
          super.onResume();
          initializemap();
      } 
  
      private void initializemap() {
          // TODO Auto-generated method stub
          if(gmap == null){
              fm=getFragmentManager();
              Fragment ft=fm.findFragmentById(R.id.map);
              smf=(SupportMapFragment)ft;
              gmap=smf.getMap();  
  
          } 
      } 
  
  }
  
  
  
  LocationSendActivity...........
     package com.example.map;
  
  import android.os.Bundle;
  import android.support.v4.app.Fragment;
  import android.view.LayoutInflater;
  import android.view.View;
  import android.view.ViewGroup;
  import android.widget.TextView;
  
  public class LocationSendActivity extends Fragment {
  
      private double latt,lngt;
      private TextView tv1,tv2;
  
      public void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          Bundle bnd=this.getArguments();
          latt=bnd.getDouble("lat");
          lngt=bnd.getDouble("lng");  
      }
  
      public View onCreateView(LayoutInflater inflater,ViewGroup container,
              Bundle savedInstanceState){
          super.onCreate(savedInstanceState);
          View v=inflater.inflate(R.layout.locationsend, container, false);
      /*  tv1=(TextView)v.findViewById(R.id.textView3);
          tv1.setText(String.valueOf(latt));
          tv2=(TextView)v.findViewById(R.id.textView4);
          tv2.setText(String.valueOf(lngt));  */
  
          return v;
      }
  
  }
  </code></pre>
  
  <p>LogCat........</p>
  
  <pre><code>11-30 12:46:34.238: W/System.err(5880): java.io.IOException: Permission denied
  11-30 12:46:34.248: E/AndroidRuntime(5880): FATAL EXCEPTION: main
  11-30 12:46:34.248: E/AndroidRuntime(5880): java.lang.NullPointerException
  11-30 12:46:34.248: E/AndroidRuntime(5880):     at com.example.map.LocationSendActivity.onCreate(LocationSendActivity.java:18)
  11-30 12:46:34.248: E/AndroidRuntime(5880):     at android.support.v4.app.Fragment.performCreate(Fragment.java:1455)
  11-30 12:46:34.248: E/AndroidRuntime(5880):     at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:893)
  11-30 12:46:34.248: E/AndroidRuntime(5880):     at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1104)
  11-30 12:46:34.248: E/AndroidRuntime(5880):     at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:682)
  11-30 12:46:34.248: E/AndroidRuntime(5880):     at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1460)
  11-30 12:46:34.248: E/AndroidRuntime(5880):     at android.support.v4.app.FragmentManagerImpl$1.run(FragmentManager.java:440)
  11-30 12:46:34.248: E/AndroidRuntime(5880):     at android.os.Handler.handleCallback(Handler.java:587)
  11-30 12:46:34.248: E/AndroidRuntime(5880):     at android.os.Handler.dispatchMessage(Handler.java:92)
  11-30 12:46:34.248: E/AndroidRuntime(5880):     at android.os.Looper.loop(Looper.java:123)
  11-30 12:46:34.248: E/AndroidRuntime(5880):     at android.app.ActivityThread.main(ActivityThread.java:4635)
  11-30 12:46:34.248: E/AndroidRuntime(5880):     at java.lang.reflect.Method.invokeNative(Native Method)
  11-30 12:46:34.248: E/AndroidRuntime(5880):     at java.lang.reflect.Method.invoke(Method.java:521)
  11-30 12:46:34.248: E/AndroidRuntime(5880):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:916)
  11-30 12:46:34.248: E/AndroidRuntime(5880):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:674)
  11-30 12:46:34.248: E/AndroidRuntime(5880):     at dalvik.system.NativeStart.main(Native Method)
  11-30 12:46:34.258: I/global(5880): Default buffer size used in BufferedWriter constructor. It would be better to be explicit if an 8k-char buffer is required.
  </code></pre>