我要播发静态数据。我在iOS上使用Swift 2.2.1和CoreBluetooth。我的应用程序构建了蓝牙服务及其相应的特征，然后调用startAdvertising()，然后pheralManagerDidStartAdvertising90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开发比较陌生，所以我猜我在做一些愚蠢的事情，但是到目前为止我还不知道该怎么做。
我将尝试将事物精简下来，以吸引更多有经验的眼睛。
- - - - - - 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 - - - - - - -
我非常感谢您提供的任何帮助。
此致，
麦可
最佳答案
传递给CBAdvertisementDataServiceUUIDsKey的字典中startAdvertising的值是CBUUID对象的数组，但是您只传递了一个CBUUID。一旦我将其更改为数组，您的代码就可以工作。
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]])
}
}
关于swift - iOS Core蓝牙: startAdvertising() Error advertising static data，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/35858183/