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POAndroid:Google map current location and other marker points
 

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  1. POAndroid:Google map current location and other marker points
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    <p>I'm developing an android Google map app. How to create a current location ,balloon overlay and other marker location points.</p> <p>I am creating Other marker location points in (CustomMap.java)</p> <p>Here I want to current location also.Please help me</p> <p><strong>CustomMap.java</strong></p> <pre><code> public class CustomMap extends MapActivity implements LocationListener { MapView mapView; List&lt;Overlay&gt; mapOverlays; Drawable drawable; Drawable drawable2; CustomItemizedOverlay&lt;CustomOverlayItem&gt; itemizedOverlay; CustomItemizedOverlay&lt;CustomOverlayItem&gt; itemizedOverlay2; double longitude; double latitude; long start; long stop; int x, y; int lati = 0; int longit = 0; GeoPoint touchedPoint; public boolean overlay_status=false; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // making it full screen requestWindowFeature(Window.FEATURE_NO_TITLE); getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN); setContentView(R.layout.activity_custom_map); mapView = (MapView) findViewById(R.id.mapview); mapView.setBuiltInZoomControls(true); mapOverlays = mapView.getOverlays(); // first overlay drawable = getResources().getDrawable(R.drawable.marker); itemizedOverlay = new CustomItemizedOverlay&lt;CustomOverlayItem&gt;(drawable, mapView); //first overlay in first pinpoint GeoPoint point = new GeoPoint((int)(13.0094444*1E6),(int)(77.5508333*1E6)); CustomOverlayItem overlayItem = new CustomOverlayItem(point, "ISKCON Temple Bangalore(1997)", "(ISKCON Temple, Chord Rd, Mahalakshmipuram Layout, Nagapura, Bangalore, Karnataka, India)", "http://www.iskcon-bda.org/data/HKH.jpg"); itemizedOverlay.addOverlay(overlayItem); //first overlay in second pinpoint GeoPoint point2 = new GeoPoint((int)(12.8008*1E6),(int)(77.5756*1E6)); CustomOverlayItem overlayItem2 = new CustomOverlayItem(point2, "Bannerghatta National Park", "(Bannerghatta Biological Park is carved out of the Bannerghatta National Park in the year 2002)", "http://www.google.co.in/imgres?imgurl=http://travel.sulekha.com/" + "india/karnataka/bangalore/photos/bannerghatta-national-park-25.jpg&amp;imgrefurl=http://travel.sulekha.com/" + "a-visit-to-bannerghatta-national-park_bangalore-travelogue-3541.htm&amp;h=194&amp;w=259&amp;sz=1&amp;tbnid=K5TNPwXHgihgRM:&amp;tbnh=" + "119&amp;tbnw=160&amp;zoom=1&amp;usg=__MFNGL1C2InXP7jw7XmEi4ym45NY=&amp;docid=d78iF3T5ditWeM&amp;itg=1&amp;hl=en&amp;sa=X&amp;ei=" + "CpwQUdOmHIPUrQe0m4H4Bg&amp;sqi=2&amp;ved=0CHwQ_B0wCw"); itemizedOverlay.addOverlay(overlayItem2); mapOverlays.add(itemizedOverlay); // second overlay drawable2 = getResources().getDrawable(R.drawable.marker2); itemizedOverlay2 = new CustomItemizedOverlay&lt;CustomOverlayItem&gt;(drawable2, mapView); //second overlay in third pinpoint GeoPoint point3 = new GeoPoint((int)(12.8339956*1E6),(int)(77.4009816*1E6)); CustomOverlayItem overlayItem3 = new CustomOverlayItem(point3, "Wonderla Bangalore(2005)", "(Wonderla is an amusement park located near Bidadi, 28 kilometres Bangalore, spanning 82 acres of land)", "http://www.google.co.in/imgres?imgurl=http://www.yohyoh.com/places-tourism/pictures/wb3.jpg&amp;imgrefurl=http://" + "www.yohyoh.com/places-tourism/view.php/popular-tours/Karnataka/Bangalore/wonderla-bangalore/561/8192987807&amp;h=" + "194&amp;w=259&amp;sz=1&amp;tbnid=RoLC5gzRHP6VSM:&amp;tbnh=160&amp;tbnw=213&amp;zoom=1&amp;usg=__ShDQAmQ0zjQaKbsy0A63BokHAmk=" + "&amp;docid=J1aN09WXjvHw4M&amp;itg=1&amp;hl=en&amp;sa=X&amp;ei=Sp0QUbvIEMHjrAfTy4GgBA&amp;ved=0CNMBEPwdMAo"); itemizedOverlay2.addOverlay(overlayItem3); //second overlay in third pinpoint GeoPoint point4 = new GeoPoint((int)(12.8385923*1E6),(int)(77.661710599*1E6)); CustomOverlayItem overlayItem4 = new CustomOverlayItem(point4, "Wipro Technologies,Bangalore", "(Wipro Technologies, Electronics City Phase 1, Electronics City, Bangalore, Karnataka 560100, India)", "http://www.electronic-city.in/companies/profile/wipro/wipro-electronic-city.jpg"); itemizedOverlay2.addOverlay(overlayItem4); mapOverlays.add(itemizedOverlay2); // Getting LocationManager object from System Service LOCATION_SERVICE LocationManager locationManager = (LocationManager) getSystemService(LOCATION_SERVICE); // Creating a criteria object to retrieve provider Criteria criteria = new Criteria(); criteria.setAccuracy(Criteria.ACCURACY_FINE); // Getting the name of the best provider String provider = locationManager.getBestProvider(criteria, true); // Getting Current Location Location location = locationManager.getLastKnownLocation(provider); if(location!=null){ onLocationChanged(location); } locationManager.requestLocationUpdates(provider, 20000, 0, this); String address = ""; Geocoder geoCoder = new Geocoder( getBaseContext(), Locale.getDefault()); latitude = location.getLatitude(); // Getting longitude longitude = location.getLongitude(); // Creating an instance of GeoPoint corresponding to latitude and longitude GeoPoint point5 = new GeoPoint((int)(latitude * 1E6), (int)(longitude*1E6)); try { List&lt;Address&gt; addresses = geoCoder.getFromLocation( point.getLatitudeE6() / 1E6, point.getLongitudeE6() / 1E6, 1); if (addresses.size() &gt; 0) { for (int index = 0; index &lt; addresses.get(0).getMaxAddressLineIndex(); index++) address += addresses.get(0).getAddressLine(index) + " "; } tvLocation.setText("Address :" + address ); } catch (IOException e) { e.printStackTrace(); } drawable = getResources().getDrawable(R.drawable.url); itemizedOverlay = new CustomItemizedOverlay&lt;CustomOverlayItem&gt;(drawable, mapView); mapView.getOverlays().add(itemizedOverlay); itemizedOverlay.runOnFirstFix(new Runnable() { @Override public void run() { // TODO Auto-generated method stub mapView.getOverlays().add(itemizedOverlay); } }); MapController mapController = mapView.getController(); // Locating the Geographical point in the Map mapController.animateTo(point5); itemizedOverlay.enableMyLocation(); mapView.postInvalidate(); // Getting list of overlays available in the map List&lt;Overlay&gt; mapOverlays = mapView.getOverlays(); CustomOverlayItem currentLocation = new CustomOverlayItem(point, "Current Location", "Latitude : " + latitude + ", Longitude:" + longitude, null); // Adding the mark to the overlay itemizedOverlay.addOverlay(currentLocation); // Clear Existing overlays in the map mapOverlays.clear(); mapOverlays.add(itemizedOverlay); if (savedInstanceState == null) { //Contains Displaying the pinpoint final MapController mc = mapView.getController(); mc.animateTo(point); mc.setZoom(16); }else { // example restoring focused state of overlays int focused; focused = savedInstanceState.getInt("focused_1", -1); if (focused &gt;= 0) { itemizedOverlay.setFocus(itemizedOverlay.getItem(focused)); } focused = savedInstanceState.getInt("focused_2", -1); if (focused &gt;= 0) { itemizedOverlay2.setFocus(itemizedOverlay2.getItem(focused)); } } Touchy t = new Touchy(); mapOverlays = mapView.getOverlays(); mapOverlays.add(t); } @Override protected boolean isRouteDisplayed() { return false; } @Override protected void onSaveInstanceState(Bundle outState) { // example saving focused state of overlays if (itemizedOverlay.getFocus() != null) outState.putInt("focused_1", itemizedOverlay.getLastFocusedIndex()); if (itemizedOverlay2.getFocus() != null) outState.putInt("focused_2", itemizedOverlay2.getLastFocusedIndex()); super.onSaveInstanceState(outState); } //Contains creating the option menu items @Override public boolean onCreateOptionsMenu(Menu menu) { menu.add(0, 0, 1, "Remove Overlay"); menu.add(0, 1, 1, "set Overlay"); MenuInflater inflater = getMenuInflater(); inflater.inflate(R.drawable.home_menu, menu); return true; } @Override public boolean onPrepareOptionsMenu(Menu menu) { if(overlay_status==false) { menu.findItem(1).setVisible(false); menu.findItem(0).setVisible(true); //overlay_status=true; } else { menu.findItem(0).setVisible(false); menu.findItem(1).setVisible(true); // overlay_status=false; } return super.onPrepareOptionsMenu(menu); } @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case R.id.home1: finish(); return true; case 0: //Toast.makeText(getApplicationContext(), "remove overlay ", Toast.LENGTH_SHORT).show(); // example hiding balloon before removing overlay if (itemizedOverlay.getFocus() != null) { itemizedOverlay.hideBalloon(); } mapOverlays.remove(itemizedOverlay); mapView.invalidate(); overlay_status=true; return true; case 1: Toast.makeText(getApplicationContext(), "set overlay ", Toast.LENGTH_SHORT).show(); if (itemizedOverlay.getFocus() != null) { itemizedOverlay.getBalloonBottomOffset(); } mapOverlays.add(itemizedOverlay); mapView.bringToFront(); overlay_status=false; return true; default: return super.onOptionsItemSelected(item); } } class Touchy extends Overlay{ List&lt;Address&gt; address; String display = ""; String display1; @SuppressWarnings({ "deprecation" }) public boolean onTouchEvent(MotionEvent e,MapView m){ if(e.getAction() == MotionEvent.ACTION_DOWN){ start = e.getEventTime(); x = (int)e.getX(); y = (int)e.getY(); touchedPoint = mapView.getProjection().fromPixels(x, y); Geocoder geocoder = new Geocoder(getBaseContext(), Locale.getDefault()); try{ address = geocoder.getFromLocation(touchedPoint.getLatitudeE6() / 1E6, touchedPoint.getLongitudeE6() / 1E6, 1); if(address.size() &gt; 0){ for(int i = 0; i&lt;address.get(0).getMaxAddressLineIndex(); i++){ display +=address.get(0).getAddressLine(i) + "\n"; } Toast.makeText(getBaseContext(), display, Toast.LENGTH_LONG).show(); } }catch(IOException e1){ } finally { display1=display; display=" "; } } if(e.getAction() == MotionEvent.ACTION_UP){ stop = e.getEventTime(); } /**contains the creating a Alert Dialog Box (place apinpoint, get address, Toggle View) * In Dialog Box Maximum three buttens */ if(stop - start &gt; 1000){ AlertDialog alert = new AlertDialog.Builder(CustomMap.this).create(); alert.setTitle("pick an Option"); alert.setMessage("I told to pick an option"); alert.setButton("place a pinpoint", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { CustomOverlayItem overlayItem = new CustomOverlayItem(touchedPoint,"Address:",display1, display1); // SimpleItemizedOverlay itemizedOverlay = new SimpleItemizedOverlay(drawable, mapView); CustomItemizedOverlay&lt;CustomOverlayItem&gt; itemOverlay = new CustomItemizedOverlay&lt;CustomOverlayItem&gt;(drawable, mapView); // CustomPinpoint custom = new CustomPinpoint(drawable, CustomMap.this); // custom.insertPinpoint(overlayItem); itemOverlay.insertPinpoint(overlayItem); itemOverlay.addOverlay(overlayItem); mapOverlays.add(itemOverlay); } }); alert.setButton2("get address", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { Geocoder geocoder = new Geocoder(getBaseContext(), Locale.getDefault()); try{ List&lt;Address&gt; address = geocoder.getFromLocation(touchedPoint.getLatitudeE6() / 1E6, touchedPoint.getLongitudeE6() / 1E6, 1); if(address.size() &gt; 0){ String display = ""; for(int i = 0; i&lt;address.get(0).getMaxAddressLineIndex(); i++){ display +=address.get(0).getAddressLine(i) + "\n"; } Toast.makeText(getBaseContext(), display, Toast.LENGTH_LONG).show(); } }catch(IOException e){ } } }); alert.setButton3("Toggle View", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { if(mapView.isSatellite()){ mapView.setSatellite(false); mapView.setStreetView(true); }else{ mapView.setStreetView(false); mapView.setSatellite(true); } } }); alert.show(); return true; } return false; } } @Override public void onLocationChanged(Location location) { lati = (int) (location.getLatitude() * 1E6); longit = (int) (location.getLongitude() * 1E6); GeoPoint ourLocation = new GeoPoint(lati, longit); OverlayItem overlayItem = new OverlayItem(ourLocation, "What's up?", "2nd String"); CustomPinpoint custom = new CustomPinpoint(drawable, CustomMap.this); custom.insertPinpoint(overlayItem); mapOverlays.add(custom); } @Override public void onProviderDisabled(String provider) { } @Override public void onProviderEnabled(String provider) { } @Override public void onStatusChanged(String provider, int status, Bundle extras) { } } </code></pre>
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