MessageListener.onDistanceChanged 未被调用

Question

我正在通过 Google Nearby 发布和订阅消息，并正确接收 onFound 和 onLost，但未收到 onDistanceChanged 或 onBleSignalChanged 的任何回调。我知道 BLE 信号改变是基于使用 BLE 发现，但是 onDistanceChanged 是否有类似的限制？文档似乎没有表明存在。下面是我的消息监听器，感谢您的任何建议！

    mMessageListener = new MessageListener() {
        @Override
        public void onFound(Message message) {
            String messageAsString = new String(message.getContent());
            Log.d(TAG, "Found message: " + messageAsString);
        }

        @Override
        public void onLost(Message message) {
            String messageAsString = new String(message.getContent());
            Log.d(TAG, "Lost sight of message: " + messageAsString);
        }

        @Override
        public void onDistanceChanged(Message message, Distance distance) {
            super.onDistanceChanged(message, distance);
            Log.d(TAG, "New distance "+distance.getMeters()+" to message: " + new String(message.getContent()));
        }

        @Override
        public void onBleSignalChanged(Message message, BleSignal bleSignal) {
            super.onBleSignalChanged(message, bleSignal);
            Log.d(TAG, "New ble signal " + bleSignal.getRssi() + " to message: " + new String(message.getContent()));
        }

    };

Answer 1

您可能无法收到回调的原因有两个：

遗憾的是，距离回调目前仅适用于 BLE 信标消息。我们已经修复了文档，但它们不会在网络上更新，直到下一个 Google Play Services SDK 发布（几周后）。我们希望在未来让它适用于更多消息。
不为 subscribe() 的 PendingIntent 版本调用 BLE 信号和距离回调。

MessageListener.onDistanceChanged 未被调用

MessageListener.onDistanceChanged not being called

android

google-nearby