我正在使用一个使用 gps 功能的应用程序（在 Eclipse 上使用 AVD）。当我将坐标与 DDMS 一起放置时，此应用程序工作正常，但如果我插入一个非常接近前一点（20-30m）的点，onLocationChanged(Location loc)则不会调用该事件（但应用程序不会崩溃。如果我插入一个不那么接近的新点，偶数被正确调用）。这是模拟器的问题吗？还是方法造成的问题requestLocationUpdates(...)？我的代码是这样的：
public class myActivity extends Activity
{
private TextView mytext;
private LocationManager locmgr = null;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
GPSListener gpsListener=newGPSListener();
mytext = (TextView) findViewById(R.id.mytext);
//grab the location manager service
locmgr = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
locmgr.requestLocationUpdates(locmgr.GPS_PROVIDER, 10, 10, gpsListener);
mytext.setText("waiting for location");
}
//Start a location listener
private class GPSListener implements LocationListener
{
public void onLocationChanged(Location loc)
{
//sets and displays the lat/long when a location is provided
String latlong = "Lat: " + loc.getLatitude() + " Long: " + loc.getLongitude();
mytext.setText(latlong);
}
public void onProviderDisabled(String provider)
{
}
public void onProviderEnabled(String provider)
{
}
public void onStatusChanged(String provider, int status,
Bundle extras)
{
}
}
}