Cloudkit:CKDatabaseOperation在蜂窝电话上不起作用 [英] Cloudkit: CKDatabaseOperation not working on cellular

问题描述

向所有CloudKit用户致敬:

我经历了一段可怕的时间，试图找出为什么CKDatabaseOperation无法给出任何反馈.将CKRecords保存在移动电话上时，没有错误，没有回调.

I had a horrible time trying to find out why CKDatabaseOperation wouldn't give any feedback. No errors, no callbacks when saving CKRecords on cellular.

请让我知道您对此有何看法?

Could you please let me know what is your opinion regarding this?

推荐答案

Apple开发者论坛中的某人找到了一个解决方案: https://forums.developer.apple.com/thread/20047

Someone in the Developer Forums of Apple found a solution: https://forums.developer.apple.com/thread/20047

设置qualityOfService = .UserInitiated

示例:

let publicDB = CKContainer.defaultContainer().publicCloudDatabase    
let operation = CKModifyRecordsOperation(recordsToSave: [aRecord], recordIDsToDelete: nil)

operation.allowsCellularAccess = true
operation.qualityOfService = .UserInitiated // <----- THATS THE CELLULAR FIX

operation.perRecordProgressBlock = {(record, progress) in
    print("Progress: \(Int(progress*100.0))%")
}
operation.perRecordCompletionBlock = {(record, error) in
    print("Upload complete") //Add awesome error handling here
}
publicDB.addOperation(operation)

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