我希望每分钟都能获得位置更新

Question

我希望每隔1分钟获得一次当前位置，为此我正在使用Timer类并在其中实现位置提取，但控件不在Timer块中，不知道为什么， 我尝试了很多代码，但我每次都面临问题，

我使用下面这段代码，

没有错误也没有输出， 似乎控制不会进入所需的代码块。

有人请帮我解决我的代码有什么问题吗

public class location3 extends Activity implements LocationListener {

    LocationManager locationManager;
    Location location;
    Timer timer;
    public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    final Handler handler = new Handler();
    Timer timer = new Timer();
    TimerTask doAsynchronousTask = new TimerTask() {       
        public void run() {
            handler.post(new Runnable() {
                public void run() {       
                    try {
                                             //your method here
                        getLocation();
                    } catch (Exception e) {
                    }
                }
            });
        }
    };
    timer.schedule(doAsynchronousTask, 0, 10000); //execute in every 1 minute
 }


public void getLocation(){

   locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE); 
              locationManager.requestLocationUpdates(
              LocationManager.NETWORK_PROVIDER,1000,0,location3.this);
      location = locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
      double lat=location.getLatitude();
      double lon=location.getLongitude();
      Toast.makeText(location3.this, lat+","+lon, Toast.LENGTH_LONG).show();

     }

    public void onLocationChanged(Location location){}
    public void onProviderDisabled(String provider){}
    public void onProviderEnabled(String provider) {}
    public void onStatusChanged(String provider, int status, Bundle extras) {}
}