GpsStatus.Listener 未在网络状态更改时触发 [英] GpsStatus.Listener not firing on network status changes

问题描述

我希望我的 RTT 应用能够控制我们何时/是否接收位置更新，无论是来自 GPS 还是网络.我可以使用 GpsStatus.Listener 轻松控制 GPS 状态，但我找不到网络更新的等价物.例如，如果我们进入一个没有网络或 wifi 的区域，该事件会触发，或者会像 GpsStatus.GPS_EVENT_SATELLITE_STATUS 所涵盖的情况那样发生超时

I want my RTT app to be able to control when/whether we are receiving location updates, no matter from GPS or network. I can easily control GPS status with a GpsStatus.Listener but I cannot find the equivalent for network updates. For example, the event would fire if we enter an area with no network or wifi, or a timeout will occur like in the case covered by GpsStatus.GPS_EVENT_SATELLITE_STATUS

这里的代码片段:

    mGPSReceiver = (LocationManager)this.getSystemService(Context.LOCATION_SERVICE);
    mLocationListener = new LocationListener() {
        private Location mLastLocation;

        @Override
        public void onLocationChanged(final Location location) {
            // STUFF
        }

        @Override
        public void onProviderDisabled(final String provider) {
            if (mGPSReceiver.getProviders(true).size() == 0) { // WRONG
                PhoneStatusService.this.setGPSStatus(false);
            }
        }

        @Override
        public void onProviderEnabled(final String provider) {
        }

        @Override
        public void onStatusChanged(final String provider, final int status, final Bundle extras) {
        }
    };
    mGPSListener = new GpsStatus.Listener() {
        @Override
        public void onGpsStatusChanged(final int event) {
            switch (event) {
                case GpsStatus.GPS_EVENT_STARTED:
                    break;
                case GpsStatus.GPS_EVENT_FIRST_FIX:
                    setGPSStatus(true);
                    break;
                case GpsStatus.GPS_EVENT_STOPPED:
                    break;
                case GpsStatus.GPS_EVENT_SATELLITE_STATUS:
                    final boolean isGPSFixing = (SystemClock.elapsedRealtime() - mLastLocationMillis) < GPS_TIMEOUT;
                    setGPSStatus(isGPSFixing);
                    break;
                default:
                    break;
            }
        }
    };
    mGPSReceiver.addGpsStatusListener(mGPSListener);
    mGPSReceiver.requestLocationUpdates(LocationManager.GPS_PROVIDER, GPS_FIX_TIME, 0,
            mLocationListener);
    mGPSReceiver.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, GPS_FIX_TIME, 0,
            mLocationListener);

推荐答案

创建一个接收网络更新的 BroadCastReceiver.

Create a BroadCastReceiver that receives network updates.

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