package com.yarin.android.MobileMap;
import java.io.IOException;
import java.util.List;
import java.util.Locale;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.Point;
import android.location.Address;
import android.location.Geocoder;
import android.location.Location;
import com.google.android.maps.GeoPoint;
import com.google.android.maps.MapView;
import com.google.android.maps.Overlay;
public class LocationOverlay extends Overlay
{
private Location mLocation;
private MobileMap mMobileMap;
private String mAddresses;
public LocationOverlay(MobileMap mobileMap)
{
mMobileMap = mobileMap;
}
public void setLocation(Location location)
{
mLocation = location;
mAddresses = getAddresses();
}
public boolean draw(Canvas canvas, MapView mapView, boolean shadow, long when)
{
super.draw(canvas, mapView, shadow);
Paint paint = new Paint();
Point scPoint = new Point();
GeoPoint tmpGeoPoint = new GeoPoint((int)(mLocation.getLatitude()*1E6),(int)(mLocation.getLongitude()*1E6));
mapView.getProjection().toPixels(tmpGeoPoint, scPoint);
paint.setStrokeWidth(1);
paint.setARGB(255, 255, 0, 0);
paint.setStyle(Paint.Style.STROKE);
//�������
paint.setFlags(Paint.ANTI_ALIAS_FLAG);
paint.setTextSize(16);
Bitmap bmp = BitmapFactory.decodeResource(mMobileMap.getResources(), R.drawable.mark);
canvas.drawBitmap(bmp, scPoint.x-bmp.getWidth()/2, scPoint.y-bmp.getHeight(), paint);
canvas.drawText(mAddresses, scPoint.x-paint.measureText(mAddresses)/2, scPoint.y, paint);
return true;
}
public String getAddresses()
{
String addressString="û���ҵ���ַ";
Geocoder gc=new Geocoder(mMobileMap,Locale.getDefault());
try
{
List<Address> addresses=gc.getFromLocation(mLocation.getLatitude(), mLocation.getLongitude(),1);
StringBuilder sb=new StringBuilder();
if(addresses.size()>0)
{
Address address = addresses.get(0);
sb.append("��ַ��");
for (int i = 0; i < address.getMaxAddressLineIndex(); i++)
{
sb.append(address.getAddressLine(i));
}
addressString=sb.toString();
}
}catch(IOException e){}
return addressString;
}
}