locationmanager.requestForLocation is not working in motorola backflip & samsung galaxy

问题

I am newbie in Android, I am trying to retrieve the GPS data in my application. I am using following code LocationManager lm = (LocationManager) getSystemService(Context.LOCATION_SERVICE);

if (!lm.isProviderEnabled(LocationManager.GPS_PROVIDER)){
  lm.requestLocationUpdates(LocationManager.GPS_PROVIDER, 1000L, 500.0f, this);
}

And my class I have overriden the following method

public void onLocationChanged(Location location)
{
  String currentLocation = "The location is changed to Lat: " + location.getLatitude()+ " Lng: " + location.getLongitude();
  Toast.makeText(context, currentLocation, Toast.LENGTH_LONG);
}

But it is not showing anything and this is happening only with motorola backflip & samsung galaxy devices. Please let me know if I am doing anything wrong. Thanks in advance.

Thansk, Devanand

回答1:

You forgot to use Toast.makeText(...).show();

回答2:

Are you sure this code shows something for other phones? As Neeraj answered, you have to add .show() to the Toast.

If that is not an issue & you just missed it here, then you might have come across a problem I was facing too. A piece of code similar to yours worked perfectly on Motorola Atrix, but not on Motorola Droid.

Here was my workaround. In case GPS is not available, I fall back on the Network provider. Like so:

//Start with fine location using GPS
String locationProviderInit = LocationManager.GPS_PROVIDER;
if ((locationProviderInit == null) ||   
      !(mLocationManager.isProviderEnabled(locationProviderInit)))
{
//If GPS not available, fall back on coarse location
    locationProviderInit = LocationManager.NETWORK_PROVIDER;
}

Hope this helps!

来源：https://stackoverflow.com/questions/6496588/locationmanager-requestforlocation-is-not-working-in-motorola-backflip-samsung

标签

android

gps