如何检测我的苹果设备是否支持低功耗蓝牙 | 如何检测我的苹果设备是否支持低功耗蓝牙

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问题描述

是否有 API 可让我判断运行我的应用程序的 Apple 设备(iPad/iPod/iPhone)是否支持低功耗蓝牙 (BTLE).

Is there an API via which I can tell if the Apple device (iPad/iPod/iPhone) that my App is running on supports Bluetooth Low Energy (BTLE).

推荐答案

假设你有一个 iOS5 或 iOS6 设备并且你有一个 CBCentralManager 对象，你可以使用以下内容检查它的 CBCentralManagerState:

Assuming you have an iOS5 or iOS6 device and that you have a CBCentralManager object, you can check its CBCentralManagerState with the following:

switch ([_manager state])
{
    case CBCentralManagerStateUnsupported:
        state = @"This device does not support Bluetooth Low Energy.";
        break;
    case CBCentralManagerStateUnauthorized:
        state = @"This app is not authorized to use Bluetooth Low Energy.";
        break;
    case CBCentralManagerStatePoweredOff:
        state = @"Bluetooth on this device is currently powered off.";
        break;
    case CBCentralManagerStateResetting:
        state = @"The BLE Manager is resetting; a state update is pending.";
        break;
    case CBCentralManagerStatePoweredOn:
        state = @"Bluetooth LE is turned on and ready for communication.";
        break;
    case CBCentralManagerStateUnknown:
        state = @"The state of the BLE Manager is unknown.";
        break;
    default:
        state = @"The state of the BLE Manager is unknown.";

}

您还需要注意 centralManagerDidUpdateState:central 委托更新，然后在您的应用中采取适当的操作.

You'll want to watch for centralManagerDidUpdateState:central delegate updates as well, then take the appropriate action in your app.