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我只想使用 GPS 获取位置。我不想在这个应用程序中使用互联网和 GPRS。我的代码如下；告诉我我哪里错了。

代码：

package com.getlocation;

import android.app.Activity;
import android.content.Context;
import android.location.Criteria;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.util.Log;
import android.widget.Toast;

public class UseGps extends Activity {
    /** Called when the activity is first created. */
    private String provider;
    LocationManager locationManager;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main); /*
                                         * Use the LocationManager class to
                                         * obtain GPS locations
                                         */
        locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
        LocationListener mlocListener = new MyLocationListener();
         Criteria criteria = new Criteria();
            criteria.setAccuracy(Criteria.ACCURACY_COARSE); …