ios - 如何检测我的苹果设备是否支持蓝牙低功耗

Question

是否有一个 API，我可以通过它判断我的应用程序运行的 Apple 设备（iPad/iPod/iPhone）是否支持蓝牙低功耗（BTLE）。

Answer 1

假设您有一个 iOS5 或 iOS6 设备并且您有一个 CBCentralManager 对象，您可以使用以下命令检查它的 CBCentralManagerState：

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centralManagerDidUpdateState:central还需要关注委托更新，然后在您的应用程序中采取适当的操作。

Answer 2

另一种选择是检查设备是否支持 iBeacons。这是因为设备必须支持蓝牙 LE（即蓝牙 4）才能找到 iBeacon。只需导入 CoreLocation 并使用以下内容：

迅速：

if (CLLocationManager.isMonitoringAvailable(for: CLBeaconRegion.self)){
    print("Bluetooth LE is supported")
}

目标 C：

if ([CLLocationManager isMonitoringAvailableForClass:[CLBeaconRegion class]]){
    NSLog(@"Bluetooth LE is supported");
}

Answer 3

寻找CoreBluetooth.framework ... CBCentralManagerStateUnsupported等。