住所のアドレスを取得

Question

私はGoogleマップアプリを作っています。私は自分の画面をクリックするとポイントのアドレスを取得したいのですが、画面をクリックすると実行されず何も起こりません。これをどうすれば解決できますか？

この私のコード：

package app.googlemap; 

public class GoogleMapActivity extends MapActivity {  
    MapView mapView; 
    View zoomView; 
    MapController mc; 
    GeoPoint p; 
    private List<Overlay> mapOverlays; 
    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 

     setContentView(R.layout.main);  
     mapView=(MapView)findViewById(R.id.simple_map); 
     LinearLayout zoomLayout=(LinearLayout)findViewById(R.id.zoom); 
     zoomView = mapView.getZoomControls(); 
     zoomLayout.addView(zoomView, new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT)); 
     mapView.displayZoomControls(true); 

     mapView.setTraffic(true); 
     String coordinates[]={"21.036074","105.833636"}; 
     double latiTude=Double.parseDouble(coordinates[0]); 
     double longiTude=Double.parseDouble(coordinates[1]); 
     p=new GeoPoint((int)(latiTude*1E6), (int)(longiTude*1e6)); 

     MapOverlay mapOverlay = new MapOverlay(); 
     List<Overlay> listOfOverlays = mapView.getOverlays(); 
     listOfOverlays.clear(); 
     listOfOverlays.add(mapOverlay); 

     mc=mapView.getController(); 
     mc.animateTo(p); 
     mc.setZoom(17); 
     mapView.invalidate(); 
    } 

    public void draw(GeoPoint g,int a){ 
     mapOverlays = mapView.getOverlays(); 
     Drawable drawable = this.getResources().getDrawable(a); 
     HelloItemizedOverlay itemizedoverlay = new HelloItemizedOverlay(drawable); 
     OverlayItem overlayitem = new OverlayItem(p, "", ""); 
     itemizedoverlay.addOverlay(overlayitem); 
     mapOverlays.add(itemizedoverlay); 
    } 

    public class MapOverlay extends com.google.android.maps.Overlay{ 
     private Bitmap bmp; 

     public boolean draw(Canvas canvas, MapView mapView, boolean shadow ,long when){ 
      super.draw(canvas, mapView, shadow); 
      Point screenPts = new Point(); 
      mapView.getProjection().toPixels(p, screenPts); 
      bmp=BitmapFactory.decodeResource(getResources(), R.drawable.t5); 
      canvas.drawBitmap(bmp, screenPts.x,screenPts.y-50, null); 
      return true; 
     } 

     @Override 
     public boolean onTouchEvent(MotionEvent event, MapView mapView) 
     { 
      if (event.getAction() == 1) {     
       GeoPoint p = mapView.getProjection().fromPixels(
         (int) event.getX(), 
         (int) event.getY()); 

       Geocoder geoCoder = new Geocoder(
         getBaseContext(), Locale.getDefault()); 
       try { 
        List<Address> addresses = geoCoder.getFromLocation(
          p.getLatitudeE6()/1E6, 
          p.getLongitudeE6()/1E6, 1); 

        String add = ""; 
        if (addresses.size() > 0) 
        { 
         for (int i=0; i<addresses.get(0).getMaxAddressLineIndex(); i++) 
          add += addresses.get(0).getAddressLine(i) + "\n"; 
        } 

        Toast.makeText(getBaseContext(), add, Toast.LENGTH_SHORT).show(); 
       } 
       catch (IOException e) {     
        e.printStackTrace(); 
       } 
       return true; 
      } 
      else         
       return false; 
     }   

    } 

    @Override 
    protected boolean isRouteDisplayed() { 
     // TODO Auto-generated method stub 
     return false; 
    } 
} 

Answer 1

コール地図のこのメソッドはONTAP。

/** *特定の緯度と経度からgetAddressメソッド。 */ パブリック静的文字列getAddressFromLocation代わりonTouchEventの（二重緯度、 ダブル経度、コンテキストコンテキスト）{

String locationAddress = ""; 

    Geocoder geocoder = new Geocoder(context, Locale.getDefault()); 
    try { 

     List<Address> addresses = geocoder.getFromLocation(latitude, 
       longitude, 1); 

     if (addresses != null && !addresses.isEmpty()) { 
      Address returnedAddress = addresses.get(0); 
      StringBuilder strReturnedAddress = new StringBuilder(
        "Address:\n"); 
      for (int i = 0; i < returnedAddress.getMaxAddressLineIndex(); i++) { 

       strReturnedAddress 
         .append(returnedAddress.getAddressLine(i)).append(
           "\n"); 
      } 
      locationAddress = strReturnedAddress.toString(); 

      locationAddress = locationAddress.replace("Address:", ""); 
     } 
    } catch (IOException e) { 
     e.printStackTrace(); 
    } 
    return locationAddress; 
}