android - 如何在后台线程启动GPS定位？

Question

我需要在单独的线程中使用 GPS 检索当前位置。

Answer 1

学习下面的代码，

public class LocListener implements LocationListener {
    private static double lat =0.0;
    private static double lon = 0.0;
    private static double alt = 0.0; 
    private static double speed = 0.0;

    public static double getLat()
    {
        return lat;
    }

    public static double getLon() 
    {
        return lon;
    }

    public static double getAlt()
    {
        return alt;
    }

    public static double getSpeed()
    {
        return speed;
    }

    @Override
    public void onLocationChanged(Location location) 
    {
        lat = location.getLatitude();
        lon = location.getLongitude();
        alt = location.getAltitude();
        speed = location.getSpeed(); 
    }

    @Override
    public void onProviderDisabled(String provider) {}
    @Override
    public void onProviderEnabled(String provider) {}
    @Override
    public void onStatusChanged(String provider, int status, Bundle extras) {}
}

现在使用此代码在线程中启动 gps。

new Thread ( new Runnable()
{
     public void run()
     {
        locationManager = ( LocationManager ) getSystemService ( Context.LOCATION_SERVICE );
            locationListener = new LocListener();
            locationManager.requestLocationUpdates ( LocationManager.GPS_PROVIDER, 0, 0, locationListener );
     }
}).start();