<!-- /AndroidManifest.xml -->
 
  <!-- Required to use the Google Maps library -->
  <application>
    <!-- ... -->  
    <uses-library android:name="com.google.android.maps" />
  </application>
 
  <!-- Request permissions to access location and the internet -->
  <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
  <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
  <uses-permission android:name="android.permission.INTERNET" />

/* /src/com/example/PushPinActivity.java */
package com.example;
 
import android.graphics.drawable.Drawable;
import android.os.Bundle;
 
import com.google.android.maps.GeoPoint;
import com.google.android.maps.MapActivity;
import com.google.android.maps.MapController;
import com.google.android.maps.MapView;
import com.google.android.maps.OverlayItem;
 
class PushPinActivity extends MapActivity {
  private MapView mapView;
  private MapController mapController;
 
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
 
    initialiseMapView();
  }
 
  @Override
  public boolean isRouteDisplayed() {
    return false;
  }
 
  private void initialiseMapView() {
    mapView = (MapView) findViewById(R.id.mapView);
    mapController = mapView.getController();
 
    mapView.setBuiltInZoomControls(true);
    mapView.setSatellite(false);
 
    GeoPoint startPoint = new GeoPoint((int)(40.7575 * 1E6), (int)(-73.9785 * 1E6));
    mapController.setCenter(startPoint);
 
    mapController.setZoom(8);
  }
}

<!-- /res/layout/main.xml -->
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:orientation="vertical"
  android:layout_width="fill_parent"
  android:layout_height="fill_parent">
  <com.google.android.maps.MapView
    android:id="@+id/mapView"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:clickable="true"
    android:apiKey="YOUR_MAPS_API_KEY" />
</LinearLayout>

/* /src/com/example/PushPinActivity.java */
class PushPinActivity extends MapActivity {
  private PlacesItemizedOverlay placesItemizedOverlay;
 
  // ...
 
  @Override
  public void onStart() {
    super.onStart();
    initialiseOverlays();
  }
 
  private void initialiseOverlays() {
    // Create an ItemizedOverlay to display a list of markers
    Drawable defaultMarker = getResources().getDrawable(R.drawable.icon);
    placesItemizedOverlay = new PlacesItemizedOverlay(this, defaultMarker);
 
    placesItemizedOverlay.addOverlayItem(new OverlayItem(new GeoPoint((int) (40.748963847316034 * 1E6),
            (int) (-73.96807193756104 * 1E6)), "UN", "United Nations"));
    placesItemizedOverlay.addOverlayItem(new OverlayItem(new GeoPoint(
        (int) (40.76866299974387 * 1E6), (int) (-73.98268461227417 * 1E6)), "Lincoln Center",
        "Home of Jazz at Lincoln Center"));
    placesItemizedOverlay.addOverlayItem(new OverlayItem(new GeoPoint(
        (int) (40.765136435316755 * 1E6), (int) (-73.97989511489868 * 1E6)), "Carnegie Hall",
        "Where you go with practice, practice, practice"));
    placesItemizedOverlay.addOverlayItem(new OverlayItem(new GeoPoint(
        (int) (40.70686417491799 * 1E6), (int) (-74.01572942733765 * 1E6)), "The Downtown Club",
        "Original home of the Heisman Trophy"));
 
    // Add the overlays to the map
    mapView.getOverlays().add(placesItemizedOverlay);
  }
}

/* /src/com/example/PlacesItemizedOverlay.java */
package com.example;
 
import java.util.ArrayList;
 
import android.app.AlertDialog;
import android.content.Context;
import android.graphics.drawable.Drawable;
 
import com.google.android.maps.ItemizedOverlay;
import com.google.android.maps.OverlayItem;
 
public class PlacesItemizedOverlay extends ItemizedOverlay {
  private Context context;
  private ArrayList items = new ArrayList();
 
  public PlacesItemizedOverlay(Context aContext, Drawable marker) {
    super(boundCenterBottom(marker));
    context = aContext;
  }
 
    public void addOverlayItem(OverlayItem item) {
        items.add(item);
        populate();
    }
 
    @Override
    protected OverlayItem createItem(int i) {
        return items.get(i);
    }
 
    @Override
    public int size() {
        return items.size();
    }
 
    @Override
    protected boolean onTap(int index) {
      OverlayItem item = items.get(index);
      AlertDialog.Builder dialog = new AlertDialog.Builder(context);
      dialog.setTitle(item.getTitle());
      dialog.setMessage(item.getSnippet());
      dialog.show();
 
      return true;
    }
}

/* /src/com/example/PushPinMapView.java */
package com.example;
 
import android.content.Context;
import android.util.AttributeSet;
import android.view.GestureDetector;
import android.view.MotionEvent;
import android.view.GestureDetector.OnGestureListener;
 
import com.google.android.maps.MapView;
 
public class PushPinMapView extends MapView {
  private Context context;
  private GestureDetector gestureDetector;
 
  public PushPinMapView(Context aContext, AttributeSet attrs) {
    super(aContext, attrs);
    context = aContext;
 
    gestureDetector = new GestureDetector((OnGestureListener)context);
    gestureDetector.setOnDoubleTapListener((OnDoubleTapListener) context);
  }
 
  // Override the onTouchEvent() method to intercept events and pass them
  // to the GestureDetector. If the GestureDetector doesn't handle the event,
  // propagate it up to the MapView.
  public boolean onTouchEvent(MotionEvent ev) {
    if(this.gestureDetector.onTouchEvent(ev))
       return true;
    else
      return super.onTouchEvent(ev);
  }
}

/* /src/com/example/PushPinActivity.java */
 
// ...
import android.view.GestureDetector.OnGestureListener;
import android.view.GestureDetector.OnDoubleTapListener;
 
class PushPinActivity extends MapActivity implements OnGestureListener, OnDoubleTapListener {
  // ...
 
  /**
   * Methods required by OnDoubleTapListener
   **/
  @Override
  public boolean onDoubleTap(MotionEvent e) {
    GeoPoint p = mapView.getProjection().fromPixels((int)e.getX(), (int)e.getY());
 
    AlertDialog.Builder dialog = new AlertDialog.Builder(this);
    dialog.setTitle("Double Tap");
    dialog.setMessage("Location: " + p.getLatitudeE6() + ", " + p.getLongitudeE6());
    dialog.show();
 
    return true;
  }
 
  @Override
  public boolean onDoubleTapEvent(MotionEvent e) {
    return false;
  }
 
  @Override
  public boolean onSingleTapConfirmed(MotionEvent e) {
    return false;
  }
 
  /**
   * Methods required by OnGestureListener
   **/
  @Override
  public boolean onDown(MotionEvent e) {
    return false;
  }
 
  @Override
  public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
    return false;
  }
 
  @Override
  public void onLongPress(MotionEvent e) {
  }
 
  @Override
  public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) {
    return false;
  }
 
  @Override
  public void onShowPress(MotionEvent e) {
  }
 
  @Override
  public boolean onSingleTapUp(MotionEvent e) {
    return false;
  }
}

<!-- /res/layout/main.xml -->
  <!-- ....Change com.google.android.maps.MapView to use your custom MapView-->
  <com.example.PushPinMapView
    android:id="@+id/mapView"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:clickable="true"
    android:apiKey="YOUR_MAPS_API_KEY" />
  <!-- .... -->