LocationClient vs LocationManager

 private boolean locEnabled() {
        LocationManager locManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
        return locManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
    }

 final LocationManager manager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);

        if (!manager.isProviderEnabled(LocationManager.GPS_PROVIDER)) {
            buildAlertMessageNoGps();
        }

private void buildAlertMessageNoGps() {
        final AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setMessage("Ihre GPS-Einstellung ist deaktiviert. Möchten Sie die Einstellung aktivieren?")
                .setCancelable(false)
                .setPositiveButton("Ja", new DialogInterface.OnClickListener() {
                    public void onClick(@SuppressWarnings("unused") final DialogInterface dialog, @SuppressWarnings("unused") final int id) {
                        startActivity(new Intent(android.provider.Settings.ACTION_LOCATION_SOURCE_SETTINGS));
                    }
                })
                .setNegativeButton("Nein", new DialogInterface.OnClickListener() {
                    public void onClick(final DialogInterface dialog, @SuppressWarnings("unused") final int id) {
                        dialog.cancel();
                    }
                });
        final AlertDialog alert = builder.create();
        alert.show();
    }