android中GPS信息的获取

AndroidManifest.xml   增加 <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"></uses-permission>

public class ditu extends Activity {

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        LocationManager locationManager;
        String serviceName=Context.LOCATION_SERVICE;
        locationManager=(LocationManager)this.getSystemService(serviceName);
        //查询条件
        Criteria criteria=new Criteria();
        criteria.setAccuracy(Criteria.ACCURACY_FINE);
        criteria.setAltitudeRequired(false);
        criteria.setBearingRequired(false);
        criteria.setCostAllowed(true);
        criteria.setPowerRequirement(Criteria.POWER_LOW);
       
        String provider=locationManager.getBestProvider(criteria,true);
        Location location=locationManager.getLastKnownLocation(provider);
        updateWithNewLocation(location);
        //设置监听器，自动更新的最小时间为间隔1秒，最小位移变化超过5米
        locationManager.requestLocationUpdates(provider, 1000, 5, locationListener);
       
    }
private final LocationListener locationListener=new LocationListener(){

   public void onLocationChanged(Location location) {
    updateWithNewLocation(location);
   }

   public void onProviderDisabled(String provider) {
    updateWithNewLocation(null);
   }

   public void onProviderEnabled(String provider) {
   }
   public void onStatusChanged(String provider, int status, Bundle extras) {
   }
 
};
    private void updateWithNewLocation(Location location){
    String latLongString;
    TextView myLocationText;
    myLocationText=(TextView)this.findViewById(R.id.myLocationText);
    if(location!=null){
       double lat=location.getLatitude();
       double lng=location.getLongitude();
       latLongString="维度："+lat+"\n经度"+lng;
    }else{
       latLongString="无法获取地理信息";
    }
    myLocationText.setText("您所在位置为："+latLongString);
    }
}


哈哈，只要手机开了GPS,你就能随时定位自己的位置，可惜显示出来的是经纬度，如果结合google API，那就能显示在地图上了。