我想宣传静态数据。我在 iOS 上使用 Swift 2.2.1 和 CoreBluetooth。我的应用程序构建蓝牙Services以及他们对应的特征，然后调用开始广告()，以及PeripheralManagerDidStartAdvertising90回调返回此错误：
peripheralManagerDidStartAdvertising encountered an error. // Mine
One or more parameters were invalid. // ...from Apple CoreBluetooth
nil // ... return value from Apple CoreBluetooth callback
我对 Swift 和 iOS 开发还比较陌生，所以我猜我正在做一些愚蠢的事情，但到目前为止我还不知道是什么。
我将尝试为更有经验的人提炼一些东西。
- - - - - - pointutility.swift - - - - - - -
// This is a code excerpt and probably won't compile.
// UUID for the one peripheral service, declared outside the class:
var peripheralServiceUUID = CBUUID(string: "9BC1F0DC-F4CB-4159-BD38-7375CD0DD545")
// UUID for one characteristic of the service above, declared outside the class:
var nameCharacteristicUUID = CBUUID(string: "9BC1F0DC-F4CB-4159-BD38-7B74CD0CD546")
class PointUtility: NSObject, CBPeripheralManagerDelegate {
var peripheralManager:CBPeripheralManager?
var bluetoothServices:CBMutableService?
var nameCharacteristic:CBMutableCharacteristic?
override init() {
super.init()
peripheralManager = CBPeripheralManager(delegate:self, queue:nil)
bluetoothServices = CBMutableService(type: peripheralServiceUUID, primary: true)
}
func configureUtilityForIdentity(identity:Point!) {
var characteristicsArray:[CBCharacteristic] = []
myIdentity = identity
if (identity.name != nil) {
nameCharacteristic =
CBMutableCharacteristic(type: nameCharacteristicUUID,
properties: (CBCharacteristicProperties.Read),
value: myIdentity?.name?.dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: false),
permissions: CBAttributePermissions.Readable)
characteristicsArray.append(nameCharacteristic!)
}
// more characteristics built here and added to the characteristicsArray[]...
// ... then all are added to the CBMutableService at the bottom...
bluetoothServices?.characteristics = characteristicsArray as [CBCharacteristic]
}
func peripheralManagerDidUpdateState(peripheral: CBPeripheralManager) {
switch (peripheral.state) {
case .PoweredOn:
print("Current Bluetooth State: PoweredOn")
publishServices(bluetoothServices)
break;
case .PoweredOff:
print("Current Bluetooth State: PoweredOff")
break;
case .Resetting:
print("Current Bluetooth State: Resetting")
break;
case .Unauthorized:
print("Current Bluetooth State: Unauthorized")
case .Unknown:
print("Current Bluetooth State: Unknown")
break;
case .Unsupported:
/
print("Current Bluetooth State: Unsupported")
break;
}
}
func publishServices(newService:CBMutableService!) {
peripheralManager?.addService(newService)
}
func peripheralManager(peripheral: CBPeripheralManager, didAddService service: CBService, error: NSError?) {
if (error != nil) {
print("PerformerUtility.publishServices() returned error: \(error!.localizedDescription)")
print("Providing the reason for failure: \(error!.localizedFailureReason)")
}
else {
peripheralManager?.startAdvertising([CBAdvertisementDataServiceUUIDsKey : service.UUID])
}
}
func peripheralManagerDidStartAdvertising(peripheral: CBPeripheralManager,
error: NSError?) {
if (error != nil) {
print("peripheralManagerDidStartAdvertising encountered an error.")
print(error!.localizedDescription) // Error: One or more parameters were invalid
print(error!.localizedFailureReason) // Error: nil
}
print ("Debug: peripheralManagerDidStartAdvertising()")
}
}
- - - - - - pointutility.swift - - - - - - -
我真的很感谢所提供的任何帮助。
此致，
Michael
的值CBAdvertisementDataServiceUUIDsKey在字典中传递给startAdvertising是一个数组CBUUID对象，但你只传递一个CBUUID。一旦我将其更改为数组，您的代码就可以工作了。
func peripheralManager(peripheral: CBPeripheralManager, didAddService service: CBService, error: NSError?) {
if (error != nil) {
print("PerformerUtility.publishServices() returned error: \(error!.localizedDescription)")
print("Providing the reason for failure: \(error!.localizedFailureReason)")
}
else {
peripheralManager?.startAdvertising([CBAdvertisementDataServiceUUIDsKey : [service.UUID]])
}
}
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