GPSd定位

public class MainActivity extends AppCompatActivity {

    private TextView textView1;
    private LocationManager manager;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        initView();
    }

    private void initView() {
        textView1 = (TextView) findViewById(R.id.textView1);
        manager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
        if (!manager.isProviderEnabled(LocationManager.GPS_PROVIDER)) {
            Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
            startActivityForResult(intent, 1);
            return;
        }
        String best = manager.getBestProvider(gettcriteria(), true);
        if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
            // TODO: Consider calling
            //    ActivityCompat#requestPermissions
            // here to request the missing permissions, and then overriding
            //   public void onRequestPermissionsResult(int requestCode, String[] permissions,
            //                                          int[] grantResults)
            // to handle the case where the user grants the permission. See the documentation
            // for ActivityCompat#requestPermissions for more details.
            return;
        }
        manager.addGpsStatusListener(gps);
        manager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 1000, 1, locationListener);
    }

    LocationListener locationListener = new LocationListener() {
        @Override
        public void onLocationChanged(Location location) {
            up(location);
//            textView1.setText("经度---" + String.valueOf(location.getLongitude()) + "\n" + "纬度---" + String.valueOf(location.getLatitude()) + "\n海拔---" + String.valueOf(location.getAltitude()));

        }

        @Override
        public void onStatusChanged(String s, int i, Bundle bundle) {

        }

        @Override
        public void onProviderEnabled(String s) {

        }

        @Override
        public void onProviderDisabled(String s) {

        }
    };
    //状态监听
    GpsStatus.Listener gps = new GpsStatus.Listener() {
        @Override
        public void onGpsStatusChanged(int i) {

        }
    };

    public Criteria gettcriteria() {
        Criteria criteria = new Criteria();
        criteria.setAccuracy(Criteria.ACCURACY_FINE);
        return criteria;
    }

    public void up(Location location) {
        textView1.setText("经度---" + String.valueOf(location.getLongitude())
                + "\n" + "纬度---" + String.valueOf(location.getLatitude())
                + "\n海拔---" + String.valueOf(location.getAltitude()));
    }
}