Question

我正在开发基于Android Nearby的项目。我可以将操作的超时添加为请求连接或发送有效负载，但是它无法使其在发现和广告过程中有效...

   Nearby.Connections.startDiscovery(
            googleApiClient,
            getServiceId(),
            object : EndpointDiscoveryCallback() {
                override fun onEndpointFound(endpointId: String, info: DiscoveredEndpointInfo) {
                    Log.d(TAG,
                            String.format(
                                    "onEndpointFound(endpointId=%s, serviceId=%s, endpointName=%s)",
                                    endpointId, info.serviceId, info.endpointName))

                    if (getServiceId() == info.serviceId) {
                        val endpoint = Endpoint(endpointId, info.endpointName)
                        discoveredEndpoints.put(endpointId, endpoint)
                        onEndpointDiscovered(endpoint)
                    }
                }

                override fun onEndpointLost(endpointId: String) {
                    Log.d(TAG, String.format("onEndpointLost(endpointId=%s)", endpointId))
                }
            },
            DiscoveryOptions(STRATEGY))
            .setResultCallback({ status -> onResult(ConnectionCase.START_DISCOVERY, status) }, TIMEOUT_DISCOVERY_MILLIS, TimeUnit.MILLISECONDS)


 private val TIMEOUT_DISCOVERY_MILLIS: Long = 1000

我假装超时是为了避免等待时间，直到设备找到另一个连接配对。有没有人有这个问题？

Answer 1

与此同时，我实施的解决方法是添加一个CountDownTimer，以及广告超时所需的时间：

private val TIMEOUT_DISCOVERY_MILLIS: Long = 15000
    private val SECOND_MILLIS: Long = 1000
 private fun startConnectionTimer() {

        countDownTimer = object : CountDownTimer(TIMEOUT_DISCOVERY_MILLIS, SECOND_MILLIS) {

            override fun onTick(millisUntilFinished: Long) {
                Log.d("ADVERT", "seconds remaining: " + millisUntilFinished / SECOND_MILLIS)
            }

            override fun onFinish() {
                if (!connectionAccepted) {
                    onTimeOut()
                }
            }
        }.start()

    }
    //when advertising starts, this function is called:
      protected fun onAdvertisingStarted() {
        connectionAccepted = false
        startConnectionTimer()
    }
//It resets everything and stops the NearbyActions
    fun onTimeOut() {
        resetState()
        stopNearbyActions()
        onTimeOutReached()
        setState(State.UNKNOWN)
    }

这样，每当某个用户失去连接时，他将在15秒后达到超时。希望它对你们所有人都有帮助！等待API更好的实现，但它仍然有效。

启动发现和开始广告超时不适用于Android Nearby

1 个答案: