刚刚接触 android ...菜鸟级菜鸟...刚运行就显示:unfortunately,GpsExample has stopped..
不知道怎么整...package com.example.gpsexample;import java.io.IOException;  
import java.util.List;  
import java.util.Locale;  
  
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.Overlay;  
  
import android.content.Context;  
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.Criteria;  
import android.location.Geocoder;  
import android.location.Location;  
import android.location.LocationListener;  
import android.location.LocationManager;  
import android.os.Bundle;  
import android.view.Menu;  
import android.view.MenuItem;  
import android.widget.TextView;  
  
public class GpsExample extends MapActivity {  
  
    public MapController mapController;  
    public MyLocationOverlay myPosition;  
    public MapView myMapView;  
    public static final int ZOOM_IN = Menu.FIRST;  
    public static final int ZOOM_OUT = Menu.FIRST + 1;  
      
    @Override  
    protected void onCreate(Bundle icicle) {  
        // TODO Auto-generated method stub  
        super.onCreate(icicle);  
          
        setContentView(R.layout.main);  
          
        LocationManager locationManager;  
        String context = Context.LOCATION_SERVICE;  
        locationManager = (LocationManager)getSystemService(context);  
        myMapView = (MapView)findViewById(R.id.mapView1);  
          
        mapController = myMapView.getController();  
          
        //设置显示模式  
        myMapView.setSatellite(true);  
        myMapView.setStreetView(true);  
          
        //设置缩放控制,这里使用自己实现的缩放菜单  
        myMapView.displayZoomControls(false);  
        //设置使用MyLocationOverlay绘图  
        mapController.setZoom(17);  
        myPosition = new MyLocationOverlay();  
        List<Overlay> overlays = myMapView.getOverlays();  
        overlays.add(myPosition);  
        //设置Criteria(服务商)的信息  
        Criteria criteria = new Criteria();  
        //经度要求  
        criteria.setAccuracy(Criteria.ACCURACY_FINE);  
        criteria.setAltitudeRequired(false);  
        criteria.setBearingRequired(false);  
        criteria.setCostAllowed(false);  
        criteria.setPowerRequirement(Criteria.POWER_LOW);  
        //取得最好效果的criteria  
        String provider = locationManager.getBestProvider(criteria, true);  
        //获得坐标相应信息  
        Location location = locationManager.getLastKnownLocation(provider);  
        //更新坐标相关信息  
        updateWithNewLocation(location);  
        //注册一个周期的更新,3000ms更新一次  
        //locationManager用来监听定位信息的改变  
        locationManager.requestLocationUpdates(provider, 3000, 0, locationListener);  
          
    }  
  
    private void updateWithNewLocation(Location location){  
        String latLongString;  
        TextView myLocationText = (TextView)findViewById(R.id.textView1);  
        String addressString = "没有找到地址\n";  
          
        if(location != null){  
            //为绘制标志的类设置坐标  
            //myPosition.  
            //取得经度和纬度  
            Double geoLat = location.getLatitude() * 1E6;  
            Double geoLng = location.getLongitude() * 1E6;  
              
            GeoPoint point = new GeoPoint(geoLat.intValue(), geoLng.intValue());  
            //定位到指定坐标  
            mapController.animateTo(point);  
            double lat = location.getLatitude();  
            double lng = location.getLongitude();  
            latLongString = "经度:" + lat + "\n纬度:" + lng;  
              
            double latitude = location.getLatitude();  
            double longitude = location.getLongitude();  
            //根据地理环境来确定编码  
            Geocoder gc = new Geocoder(this, Locale.getDefault());  
            try{  
                //取得地址相关的一些信息、经度、纬度  
                List<Address> addresses = gc.getFromLocation(latitude, longitude, 1);  
                StringBuilder sb = new StringBuilder();  
                if(addresses.size() > 0){  
                    Address address = addresses.get(0);  
                    for(int i = 0; i < address.getMaxAddressLineIndex(); i++){  
                        sb.append(address.getAddressLine(i)).append("\n");  
                        sb.append(address.getLocality()).append("\n");  
                        sb.append(address.getPostalCode()).append("\n");  
                        sb.append(address.getCountryName());  
                        addressString = sb.toString();  
                    }  
                }                 
            }catch(IOException e){}  
        }else{  
            latLongString = "没有找到坐标. \n";  
        }  
          
        myLocationText.setText("你当前的坐标如下:\n" + latLongString + "\n" + addressString);  
    }  
      
    private final LocationListener locationListener = new LocationListener() {  
          
        public void onStatusChanged(String provider, int status, Bundle extras) {//Provider转态在可用、暂时不可服务和无服务三个状态直接切换时触发此函数  
            // TODO Auto-generated method stub  
              
        }  
          
        public void onProviderEnabled(String provider) {//Provider启用时触发此函数,比如GPS被打开  
            // TODO Auto-generated method stub  
              
        }  
          
        public void onProviderDisabled(String provider) {//Provider禁用时触发此函数,比如GPS被关闭  
            // TODO Auto-generated method stub  
            updateWithNewLocation(null);  
        }  
          
        public void onLocationChanged(Location location) {//当坐标改变时触发事件  
            // TODO Auto-generated method stub  
            updateWithNewLocation(location);  
        }  
    };  
      
    @Override  
    protected boolean isRouteDisplayed() {  
        // TODO Auto-generated method stub  
        return false;  
    }  
  
    @Override  
    public boolean onOptionsItemSelected(MenuItem item) {  
        // TODO Auto-generated method stub  
        super.onOptionsItemSelected(item);  
          
        switch(item.getItemId()){  
        case ZOOM_IN:  
            mapController.zoomIn();  
            return true;  
        case ZOOM_OUT:  
            mapController.zoomOut();  
            return true;  
        }  
          
        return true;  
    }  
  
    @Override  
    public boolean onCreateOptionsMenu(Menu menu) {  
        // TODO Auto-generated method stub  
        super.onCreateOptionsMenu(menu);  
          
        menu.add(0, ZOOM_IN, Menu.NONE, "放大");  
        menu.add(0, ZOOM_OUT, Menu.NONE, "缩小");  
        return true;  
    }  
      
    class MyLocationOverlay extends Overlay{  
        Location mLocation;  
        //更新坐标时,设置该坐标,以便画图  
        public void setLocation(Location location){  
            mLocation = location;  
        }  
          
        @Override  
        public boolean draw(Canvas canvas, MapView mapView, boolean shadow,  
                long when) {  
            // TODO Auto-generated method stub  
            super.draw(canvas, mapView, shadow, when);  
              
            Paint paint = new Paint();  
            Point myScreenCoords = new Point();  
            //将经纬度转换成实际屏幕坐标  
            GeoPoint tmpGeoPoint = new GeoPoint((int)(mLocation.getLatitude() * 1E6), (int)(mLocation.getLongitude() * 1E6));  
            mapView.getProjection().toPixels(tmpGeoPoint, myScreenCoords);  
            paint.setStrokeWidth(1);  
            paint.setARGB(255, 255, 0, 0);  
            paint.setStyle(Paint.Style.STROKE);  
            Bitmap bmp = BitmapFactory.decodeResource(getResources(), R.drawable.ic_launcher);  
            canvas.drawBitmap(bmp, myScreenCoords.x, myScreenCoords.y, paint);  
            canvas.drawText("Here am I", myScreenCoords.x, myScreenCoords.y, paint);  
              
            return true;  
        }         
    }  
}  
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.gpsexample"
    android:versionCode="1"
    android:versionName="1.0" >
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" /> 
<uses-permission android:name="android.permission.INTERNET" /> 
    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="15" />    <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        
<uses-library android:name="com.google.android.maps" /> 
        
        <activity
            android:name=".GpsExample"
            android:label="@string/title_activity_gps_example" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>    
</manifest>