Xcode IOS 8.3 swift如何检查蓝牙是否已连接？
[英]Xcode IOS 8.3 swift how to check if bluetooth is connected?
问题描述
Does anyone know a way to just check if Bluetooth is connected for iOS? 
有没有人知道如何检查蓝牙是否已连接iOS？ I'm just looking to check for connection, and not trying to connect. 我只是想检查连接，而不是尝试连接。
1 个解决方案
解决方案1
3 2015-04-08 19:26:37
You would probably use CBCentralManager for that. 您可能会使用CBCentralManager 。 You can use retrieveConnectedPeripheralsWithServices to get a list of things that are connected based on their service UUID. 您可以使用retrieveConnectedPeripheralsWithServices获取基于其服务UUID连接的事物的列表。 If all you want to know is if Bluetooth is on or off, examine the state property of a CBCentralManager instance to determine if it is powered on or off. 如果您只想知道蓝牙是打开还是关闭，请检查CBCentralManager实例的state属性，以确定它是打开还是关闭。
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