title: Get map center point on scrolling Google maps v2 in android?
body: <p>Hi iam doing an app very in my app there is a map page so i implemented Google Maps V2 and i have a issue i when i scroll the map i want to get the center points of the map that is if i scroll the map and i leave it then it gets the center points of the map so can any one can suggest to solve this issue it may be helpful Thank you in advance.......</p>
  
  <p><strong>Note</strong> : I have Used a Google Maps V2 so please post related to that .</p>
  
  <pre><code>public class Mapview extends FragmentActivity implements OnMapClickListener, OnCameraChangeListener{
  
  final int RQS_GooglePlayServices = 1;
  private GoogleMap myMap;
  Location myLocation;
  TextView tvLocInfo;
  GPSTracker gps;
  public double Latitude,Longitude;
  String Datetime, addr,RegUID;
  public String lat,longd;
  
  @Override
  protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.mapview);
  
      tvLocInfo = (TextView)findViewById(R.id.locinfo);
  
      FragmentManager myFragmentManager = getSupportFragmentManager();
      SupportMapFragment mySupportMapFragment = (SupportMapFragment)myFragmentManager.findFragmentById(R.id.map);
  
      myMap = mySupportMapFragment.getMap();
  
      myMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
      myMap.setMyLocationEnabled(true);
      myMap.setOnMapClickListener(this);
      Projection P = myMap.getProjection();
      Log.e("lat", String.valueOf(Latitude));
      Log.e("lat", String.valueOf(Longitude));
      Button mDone = (Button) findViewById(R.id.button1);         
      mDone.setOnClickListener(new View.OnClickListener() {
          @SuppressLint("SimpleDateFormat")
          public void onClick(View v) {
  
              //Toast.makeText(getBaseContext(), "latitude"+lat+""+"longitude"+longd , Toast.LENGTH_LONG).show();
              String timeStamp = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(Calendar.getInstance().getTime());                
              Datetime = timeStamp.toString();
              Log.e("t", Datetime);               
              RegUID = Utils.RegisterUserId;
              Log.e("t", RegUID);
              final ProgressDialog dialog = ProgressDialog.show(Mapview.this, "", Utils.Loading, true);
              dialog.show();
              Handler handler = new Handler();
              handler.postDelayed(new Runnable(){
                  @SuppressWarnings("unused")
                  public void run()
                  {
                      try
                      {
                          String EMPLOYEE_SERVICE_URI = Utils.Request+"UserID="+RegUID+"&amp;Location="+URLEncoder.encode(addr,"UTF-8")+"&amp;Latitude="+lat+"&amp;Longitude="+longd+"&amp;RequestDate="+URLEncoder.encode(Datetime,"UTF-8");
                          Log.e(EMPLOYEE_SERVICE_URI, EMPLOYEE_SERVICE_URI);
                          JSONObject JObject = Utils.getResult(EMPLOYEE_SERVICE_URI);
                          //Toast.makeText(Mapview.this,JObject.toString(), Toast.LENGTH_LONG).show();
                          if(JObject!=null)
                          {     
  
                              if(JObject.getBoolean("Valid"))
                              {
  
                                  AlertDialog alertDialog = new AlertDialog.Builder(Mapview.this).create();
                                  Utils.callAlert(JObject.getString("Message"), alertDialog);
  
                              }
                              else
                              {
                                  AlertDialog alertDialog = new AlertDialog.Builder(Mapview.this).create();
                                  Utils.callAlert(JObject.getString("Message"), alertDialog);
                              }
  
                          }
                          else
                          {
                              AlertDialog alertDialog = new AlertDialog.Builder(Mapview.this).create();
                              Utils.callAlert(JObject.getString("Message"), alertDialog);
                          }
                      }
                      catch (Exception e)
                      {
                          //Toast.makeText(Mapview.this,e.toString(), Toast.LENGTH_LONG).show();
                          Log.e("Exception", e.toString());
                      }
                      dialog.dismiss();
                  }//run() ends  
              }, 5000);               
  
  
          }
      });
  
  
  }
  
  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
      // Inflate the menu; this adds items to the action bar if it is present.
      getMenuInflater().inflate(R.menu.main, menu);
      return true;
  }
  @Override
  protected void onResume() {
      // TODO Auto-generated method stub
      super.onResume();
  
      int resultCode = GooglePlayServicesUtil.isGooglePlayServicesAvailable(getApplicationContext());
  
      if (resultCode == ConnectionResult.SUCCESS){
          Toast.makeText(getApplicationContext(), 
                  "isGooglePlayServicesAvailable SUCCESS", 
                  Toast.LENGTH_LONG).show();
      }else{
          GooglePlayServicesUtil.getErrorDialog(resultCode, this, RQS_GooglePlayServices);
      }
  
  }
  public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) {
      Log.i("test","onScroll");
      return false;
  }
  @Override
  public void onMapClick(LatLng point) {
      Log.e("lat", String.valueOf(point.latitude));
      Log.e("lat", String.valueOf(point.longitude));
      Latitude =point.latitude;
      Longitude = point.longitude;
      lat = String.valueOf(point.latitude);
      longd = String.valueOf(point.longitude);        
      myMap.moveCamera(CameraUpdateFactory.newLatLng(point));
      gps = new GPSTracker(Mapview.this);
      // check if GPS enabled     
      if(gps.canGetLocation())
      {   
  
          Geocoder geoCoder = new Geocoder(getBaseContext(), Locale.getDefault());
          try {
              List&lt;Address&gt; addresses = geoCoder.getFromLocation(Latitude, Longitude, 1);
              if(addresses != null) {
                  Address returnedAddress = addresses.get(0);
                  StringBuilder strReturnedAddress = new StringBuilder("");
                  for(int i=0; i&lt;returnedAddress.getMaxAddressLineIndex(); i++) {
                      strReturnedAddress.append(returnedAddress.getAddressLine(i)).append("\n");  
                  }
                  addr = new String(strReturnedAddress);
                  tvLocInfo.setText(addr.toString());
  
                  //Toast.makeText(getApplicationContext(), addr.toString(),Toast.LENGTH_LONG).show();
              }
              else
              {
                  Toast.makeText(getApplicationContext(), "Gps location address is unavailable please try again later",
                          Toast.LENGTH_LONG).show();
              }
          } catch (IOException e) {
              // TODO Auto-generated catch block
  
              e.printStackTrace();
          }
      }
  }
  
  @Override
  public void onCameraChange(CameraPosition arg0) {
      // TODO Auto-generated method stub
  
  }
  
   }
  </code></pre>