相关疑难解决方法(0)

我已经编写了以下代码来获取位置名称

package demo.gps.locname;

import java.io.IOException;
import java.util.List;
import java.util.Locale;

//import com.VertexVerveInc.GPSLocator.R;
//import com.VertexVerveInc.GPSLocator.GPSLocatorActivity.GPSLocationListener;
//import com.VertexVerveInc.GPSLocator.GPSLocatorActivity.MapOverlay;
import com.google.android.maps.GeoPoint;
import com.google.android.maps.MapActivity;
//import com.google.android.maps.Overlay;

//import android.app.Activity;
import android.content.Context;
import android.location.Address;
import android.location.Geocoder;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
//import android.util.Log;
import android.widget.TextView;
import android.widget.Toast;

public class GPSLocationActivity extends MapActivity {
    /** Called when the activity is first created. */
    private LocationManager locationManager;
    private LocationListener locationListener;
    private TextView tv;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);

        locationListener …