ble.swift

import IOBluetooth

class A: NSObject, CBCentralManagerDelegate {
  var c: CBCentralManager!

  init() {
    super.init()
    c = CBCentralManager(delegate:self, queue:nil)
  }

  func centralManagerDidUpdateState(central: CBCentralManager) {
    if central.state == CBCentralManagerState.PoweredOn {
      c.scanForPeripheralsWithServices(nil, options:nil)
    }
  }

  func centralManager(central: CBCentralManager!, didDiscoverPeripheral peripheral: CBPeripheral!, advertisementData data: Dictionary<NSObject, AnyObject>!, RSSI rssi: NSNumber!) {
    println(peripheral, data, rssi)
  }
}

var a = A()

NSRunLoop.currentRunLoop().run()