我的CloudKit应用程序中的CKContainer.discoverAllIdentities请求总是失败.它在几天的过程中不断失败.
private func getContacts(completion: (([CKUserIdentity]?) -> Void)?) {
container.status(forApplicationPermission: .userDiscoverability) { [weak self] status,error in
if let error = error {
print(error)
}
switch status {
case .granted:
self?.discover(completion: completion)
default:
print("status not granted")
}
}
}
private func discover(completion: (([CKUserIdentity]?) -> Void)?) {
let op = CKDiscoverAllUserIdentitiesOperation()
op.qualityOfService = .userInitiated
op.discoverAllUserIdentitiesCompletionBlock = { error in
if let error = error {
print(error)
}
}
op.userIdentityDiscoveredBlock = { identity in
print(identity)
}
op.start()
}
它会导致错误传递给op.discoverAllUserIdentitiesCompletionBlock.日志中的错误描述是：
< CKError 0x1c4a51a60：“服务器拒绝请求”(15/2000); server message =“内部服务器错误”; uuid = F67453B9-712D-4E5E-9335-929123E3C978; container ID =“iCloud.com.huntermaximillionmonk.topdraw”>
问题：
这是iOS 11.0中的一个问题
根据我的测试：
这在设备上的Xcode 9.2 / iOS 11.2.1中工作正常(不是模拟器)
重置模拟器后第一次工作,随后不起作用,但是在设备上它重复工作.
码：
let queue = OperationQueue()
func requestPermissions(for permissions: CKApplicationPermissions,completionHandler: @escaping (CKApplicationPermissionStatus,Error?) -> ()) {
CKContainer.default().requestApplicationPermission(permissions) { status,error in
if let error = error {
print("Error for requesting \(permissions) - \(error)")
}
let statusMessage : String
switch status {
case .granted:
statusMessage = "Granted"
case .denied:
statusMessage = "Denied"
case .couldNotComplete:
statusMessage = "Could not complete"
case .initialState:
statusMessage = "Initial state"
}
print("Permission - \(statusMessage)")
completionHandler(status,error)
}
}
private func discoverAllUsers() {
let operation = CKDiscoverAllUserIdentitiesOperation()
operation.userIdentityDiscoveredBlock = { userIdentity in
print("userIdentity = \(userIdentity)")
}
operation.discoverAllUserIdentitiesCompletionBlock = { error in
if let error = error {
print("Discover all users Error: \(error) ")
}
else {
print("Discover all users completed successfully")
}
}
queue.addOperation(operation)
}
