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POandroid How to make a draggable pin on maps v2
 

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  1. POandroid How to make a draggable pin on maps v2
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    <p>Hi to all I am trying to make a pin .. The issue is I couldn't find related source with my question . I've checked commonsware topics but none of them covers a draggable pin. Actually one of them has but it is related with maps v1 not v2 .. So how can I make a pin that occurs on users current position , and then could be dragged anywhere on the map when they tap on the pin.. </p> <p>Here is a sample code which has a pin (marker) and finds user location ..</p> <pre><code>public class MainActivity extends AbstractMapActivity implements OnNavigationListener, OnInfoWindowClickListener, OnMyLocationChangeListener { private static final String STATE_NAV="nav"; private static final int[] MAP_TYPE_NAMES= { R.string.normal, R.string.hybrid, R.string.satellite, R.string.terrain }; private static final int[] MAP_TYPES= { GoogleMap.MAP_TYPE_NORMAL, GoogleMap.MAP_TYPE_HYBRID, GoogleMap.MAP_TYPE_SATELLITE, GoogleMap.MAP_TYPE_TERRAIN }; private GoogleMap map=null; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); if (readyToGo()) { setContentView(R.layout.activity_main); SupportMapFragment mapFrag= (SupportMapFragment)getSupportFragmentManager().findFragmentById(R.id.map); initListNav(); map=mapFrag.getMap(); if (savedInstanceState == null) { CameraUpdate center= CameraUpdateFactory.newLatLng(new LatLng(40.76793169992044, -73.98180484771729)); CameraUpdate zoom=CameraUpdateFactory.zoomTo(15); map.moveCamera(center); map.animateCamera(zoom); } addMarker(map, 40.748963847316034, -73.96807193756104, R.string.un, R.string.united_nations); addMarker(map, 40.76866299974387, -73.98268461227417, R.string.lincoln_center, R.string.lincoln_center_snippet); addMarker(map, 40.765136435316755, -73.97989511489868, R.string.carnegie_hall, R.string.practice_x3); addMarker(map, 40.70686417491799, -74.01572942733765, R.string.downtown_club, R.string.heisman_trophy); map.setInfoWindowAdapter(new PopupAdapter(getLayoutInflater())); map.setOnInfoWindowClickListener(this); map.setMyLocationEnabled(true); map.setOnMyLocationChangeListener(this); } } @Override public boolean onNavigationItemSelected(int itemPosition, long itemId) { map.setMapType(MAP_TYPES[itemPosition]); return(true); } @Override public void onSaveInstanceState(Bundle savedInstanceState) { super.onSaveInstanceState(savedInstanceState); savedInstanceState.putInt(STATE_NAV, getSupportActionBar().getSelectedNavigationIndex()); } @Override public void onRestoreInstanceState(Bundle savedInstanceState) { super.onRestoreInstanceState(savedInstanceState); getSupportActionBar().setSelectedNavigationItem(savedInstanceState.getInt(STATE_NAV)); } @Override public void onInfoWindowClick(Marker marker) { Toast.makeText(this, marker.getTitle(), Toast.LENGTH_LONG).show(); } @Override public void onMyLocationChange(Location lastKnownLocation) { Log.d(getClass().getSimpleName(), String.format("%f:%f", lastKnownLocation.getLatitude(), lastKnownLocation.getLongitude())); } private void initListNav() { ArrayList&lt;String&gt; items=new ArrayList&lt;String&gt;(); ArrayAdapter&lt;String&gt; nav=null; ActionBar bar=getSupportActionBar(); for (int type : MAP_TYPE_NAMES) { items.add(getString(type)); } if (Build.VERSION.SDK_INT &gt;= Build.VERSION_CODES.ICE_CREAM_SANDWICH) { nav= new ArrayAdapter&lt;String&gt;( bar.getThemedContext(), android.R.layout.simple_spinner_item, items); } else { nav= new ArrayAdapter&lt;String&gt;( this, android.R.layout.simple_spinner_item, items); } nav.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); bar.setNavigationMode(ActionBar.NAVIGATION_MODE_LIST); bar.setListNavigationCallbacks(nav, this); } private void addMarker(GoogleMap map, double lat, double lon, int title, int snippet) { map.addMarker(new MarkerOptions().position(new LatLng(lat, lon)) .title(getString(title)) .snippet(getString(snippet))); } } </code></pre>
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