大佬教程收集整理的这篇文章主要介绍了swift – Codable到CKRecord,大佬教程大佬觉得挺不错的,现在分享给大家,也给大家做个参考。
extension Encodable { var Dictionary: [String: Any] { return (try? JSONserialization.jsonObject(with: JSONEncoder().encode(self),options: .allowFragments)) as? [String: Any] ?? [:] } }
然后在协议扩展中,我将记录创建为属性,如果类型为Data,我尝试创建CKAsset.
var ckEncoded: CKRecord? { // Convert self.id to CKRecord.name (CKRecordID) guard let idString = self.id?.uuidString else { return nil } let record = CKRecord(recordType: Self.entityType.rawValue,recordID: CKRecordID(recordName: idString)) self.Dictionary.forEach { if let data = $0.value as? Data { if let asset: CKAsset = try? ckAsset(from: data,id: idString) { record[$0.key] = asset } } else { record[$0.key] = $0.value as? CKRecordValue } } return record }
要解码:
func decode(_ ckRecord: CKRecord) throws { let keyIntersection = Set(self.dtoEncoded.Dictionary.keys).intersection(ckRecord.allKeys()) var Dictionary: [String: Any?] = [:] keyIntersection.forEach { if let asset = ckRecord[$0] as? CKAsset { DictionarY[$0] = try? self.data(from: asset) } else { DictionarY[$0] = ckRecord[$0] } } guard let data = try? JSONserialization.data(withJSONObject: Dictionary) else { throw Errors.LocalData.isCorrupted } guard let dto = try? JSONDecoder().decode(self.DTO,from: data) else { throw Errors.LocalData.isCorrupted } do { try decode(dto) } catch { throw error } }
我的解决方案是手动编码/解码:在我的Codable子类上,我添加了两个方法:
/// Returns CKRecord func ckRecord() -> CKRecord { let record = CKRecord(recordType: "MyClassType") record["title"] = title as CKRecordValue record["color"] = color as CKRecordValue return record } init(withRecord record: CKRecord) { title = record["title"] as? String ?? "" color = record["color"] as? String ?? kDefaultColor }
针对更复杂案例的另一个解决方案是使用一些第三方库,我遇到的是:https://github.com/insidegui/CloudKitCodable
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