地理编码错误

Question

我正在尝试更新用户在屏幕上触摸的每个位置的位置名称，即当用户抬起手指时，代码跟踪纬度和长度的像素并触发地理编码请求我的活动代码是

package scheduler.scheduler;
import java.util.List;
import com.google.android.maps.MapView.LayoutParams;  
import android.view.View;
import android.widget.LinearLayout;
import android.app.Activity;
import android.os.Bundle;
import com.google.android.maps.MapActivity;
import com.google.android.maps.MapView;
import com.google.android.maps.GeoPoint;
import com.google.android.maps.MapController;
import com.google.android.maps.Overlay;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Point;
import android.os.Bundle;
import android.view.View;
import android.widget.LinearLayout;
import java.io.IOException;
import android.view.MotionEvent;
import android.location.Geocoder;
import java.util.Locale;
import android.widget.Toast;
import android.location.Address;
public class mapz extends MapActivity {
    /** Called when the activity is first created. */
MapView mapView;
MapController mc;
GeoPoint p;
class MapOverlay extends com.google.android.maps.Overlay
{
    @Override
    public boolean draw(Canvas canvas, MapView mapView, 
    boolean shadow, long when) 
    {
        //super.draw(canvas, mapView, shadow);                   

        //---translate the GeoPoint to screen pixels---
        //Point screenPts = new Point();
        //mapView.getProjection().toPixels(p, screenPts);

        //---add the marker---
        //Bitmap bmp = BitmapFactory.decodeResource(
            //getResources(), R.drawable.pushpin);            
        //canvas.drawBitmap(bmp, screenPts.x, screenPts.y-50, null);         
        return true;
    }
    @Override
    public boolean onTouchEvent(MotionEvent event, MapView mapView) 
    {   
        //---when user lifts his finger---
        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(), "hii", Toast.LENGTH_SHORT).show();
                }
                catch (IOException e) {                
                    e.printStackTrace();
                } 

                return true;
        }
             else                
                return false; 
    } 
}
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.maplayout);
        mapView = (MapView) findViewById(R.id.mapView);
        LinearLayout zoomLayout = (LinearLayout)findViewById(R.id.zoom);  
        View zoomView = mapView.getZoomControls(); 

        zoomLayout.addView(zoomView, 
            new LinearLayout.LayoutParams(
                LayoutParams.WRAP_CONTENT, 
                LayoutParams.WRAP_CONTENT)); 
        mapView.displayZoomControls(true);
        mc = mapView.getController();
        String coordinates[] = {"18.116667", "83.416667"};
        double lat = Double.parseDouble(coordinates[0]);
        double lng = Double.parseDouble(coordinates[1]);

        p = new GeoPoint(
            (int) (lat * 1E6), 
            (int) (lng * 1E6));

        mc.animateTo(p);

        //---Add a location marker---
        MapOverlay mapOverlay = new MapOverlay();
        List<Overlay> listOfOverlays = mapView.getOverlays();
        listOfOverlays.clear();
        listOfOverlays.add(mapOverlay); 
        mapView.invalidate();

    }


    @Override
    protected boolean isRouteDisplayed() {
        return false;
    }
}

活动正在加载并且Map正在加载但是当我点击并释放鼠标时，当我检查它显示的LOGCAT时，预期的动作，即“显示位置的地址”不起作用

任何专家请尽量帮助我，我必须快速解决它的项目工作！

Answer 1

可以通过搜索错误消息找到答案，最好的结果在SO：

Geocoder.getFromLocation throws IOException on Android emulator