맵뷰의 이동, 줌인, 줌아웃되는 시점 구하는코드

package lee.hyeontae;   import com.google.android.maps.GeoPoint; import com.google.android.maps.MapActivity; import com.google.android.maps.MapView;   import android.os.Bundle;   public class MaptestActivity extends MapActivity {        // Members       Maptest mMapView;       @Override     public void onCreate(Bundle savedInstanceState)     {         super.onCreate(savedInstanceState);         setContentView(R.layout.main);           // Populate the map member         mMapView = (Maptest) findViewById(R.id.mapview);           // Add zoom controls         mMapView.setBuiltInZoomControls(true);           // Add listener         mMapView.setOnChangeListener(new MapViewChangeListener());     }       private class MapViewChangeListener implements Maptest.OnChangeListener     {           @Override         public void onChange(MapView view, GeoPoint newCenter, GeoPoint oldCenter, int newZoom, int oldZoom)         {             // Check values             if ((!newCenter.equals(oldCenter)) && (newZoom != oldZoom))             {                 // Map Zoom and Pan Detected                 // TODO: Add special action here             }             else if (!newCenter.equals(oldCenter))             {                 // Map Pan Detected                 // TODO: Add special action here             }             else if (newZoom != oldZoom)             {                 // Map Zoom Detected                 // TODO: Add special action here             }         }     }               @Override       protected boolean isRouteDisplayed()       {             return false;       }   }

package lee.hyeontae;   import java.util.Timer; import java.util.TimerTask;   import android.content.Context; import android.util.AttributeSet; import android.view.MotionEvent;   import com.google.android.maps.GeoPoint; import com.google.android.maps.MapView;   public class Maptest extends MapView {     // ------------------------------------------------------------------------     // LISTENER DEFINITIONS     // ------------------------------------------------------------------------       // Change listener     public interface OnChangeListener     {         public void onChange(MapView view, GeoPoint newCenter, GeoPoint oldCenter, int newZoom, int oldZoom);     }       // ------------------------------------------------------------------------     // MEMBERS     // ------------------------------------------------------------------------       private Maptest mThis;     private long mEventsTimeout = 250L;     // Set this variable to your preferred timeout     private boolean mIsTouched = false;     private GeoPoint mLastCenterPosition;     private int mLastZoomLevel;     private Timer mChangeDelayTimer = new Timer();     private Maptest.OnChangeListener mChangeListener = null;       // ------------------------------------------------------------------------     // CONSTRUCTORS     // ------------------------------------------------------------------------       public Maptest(Context context, String apiKey)     {         super(context, apiKey);         init();     }       public Maptest(Context context, AttributeSet attrs)     {         super(context, attrs);         init();     }       public Maptest(Context context, AttributeSet attrs, int defStyle)     {         super(context, attrs, defStyle);         init();     }       private void init()     {         mThis = this;         mLastCenterPosition = this.getMapCenter();         mLastZoomLevel = this.getZoomLevel();     }       // ------------------------------------------------------------------------     // GETTERS / SETTERS     // ------------------------------------------------------------------------       public void setOnChangeListener(Maptest.OnChangeListener l)     {         mChangeListener = l;     }       // ------------------------------------------------------------------------     // EVENT HANDLERS     // ------------------------------------------------------------------------       @Override     public boolean onTouchEvent(MotionEvent ev)     {         // Set touch internal         mIsTouched = (ev.getAction() != MotionEvent.ACTION_UP);           return super.onTouchEvent(ev);     }       @Override     public void computeScroll()     {         super.computeScroll();           // Check for change         if (isSpanChange() || isZoomChange())         {             // If computeScroll called before timer counts down we should drop it and             // start counter over again             resetMapChangeTimer();         }     }       // ------------------------------------------------------------------------     // TIMER RESETS     // ------------------------------------------------------------------------       private void resetMapChangeTimer()     {         mChangeDelayTimer.cancel();         mChangeDelayTimer = new Timer();         mChangeDelayTimer.schedule(new TimerTask()         {             @Override             public void run()             {                 if (mChangeListener != null) mChangeListener.onChange(mThis, getMapCenter(), mLastCenterPosition, getZoomLevel(), mLastZoomLevel);                 mLastCenterPosition = getMapCenter();                 mLastZoomLevel = getZoomLevel();             }         }, mEventsTimeout);     }       // ------------------------------------------------------------------------     // CHANGE FUNCTIONS     // ------------------------------------------------------------------------       private boolean isSpanChange()     {         return !mIsTouched && !getMapCenter().equals(mLastCenterPosition);     }       private boolean isZoomChange()     {         return (getZoomLevel() != mLastZoomLevel);     }   }

<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"     android:layout_width="fill_parent"     android:layout_height="fill_parent"     android:orientation="vertical" >       <lee.hyeontae.Maptest         android:id="@+id/mapview"         android:layout_width="fill_parent"         android:layout_height="fill_parent"         android:apiKey="0e4Cy7pA6hkSrVYuH5139XIFCKMejJRMIBoKj1w"         android:clickable="true" />   </LinearLayout>

http://bricolsoftconsulting.com/2011/10/31/extending-mapview-to-add-a-change-event/