android.location.GpsStatus#Listener ( )源码实例Demo

public GpsStatus.Listener getGpsStatusListener() {
    return mStatusListener;
}
 

private static InitStatus setGPSStatusListener(){

        // IMPORTANT: The GpsStatus.Listener Interface is deprecated at API 24.
        // Reference: https://developer.android.com/reference/android/location/package-summary.html
        _gpsStatusListener = new GpsStatus.Listener() {

            @Override
            public void onGpsStatusChanged(int event) {
                Log.d(TAG, "GPS status changed.");

                // Ignore if GPS_EVENT_STARTED or GPS_EVENT_STOPPED
                if(!Thread.currentThread().isInterrupted() &&
                        (event == GpsStatus.GPS_EVENT_FIRST_FIX ||
                                event == GpsStatus.GPS_EVENT_SATELLITE_STATUS) &&
                                        _locationManager != null){
                    sendCallback(PluginResult.Status.OK,
                            JSONHelper.satelliteDataJSON(_locationManager.getGpsStatus(null)));
                }
            }
        };

        final InitStatus status = new InitStatus();

        final Boolean gpsProviderEnabled = _locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);

        if(gpsProviderEnabled){
            try{
                _locationManager.addGpsStatusListener(_gpsStatusListener);
            }
            // if the ACCESS_FINE_LOCATION permission is not present
            catch(SecurityException exc){
                status.success = false;
                status.exception = exc.getMessage();
            }
        }
        else {
            //GPS not enabled
            status.success = false;
            status.error = ErrorMessages.GPS_UNAVAILABLE();
        }

        return status;
    }