使用CloudKit从iCloud获取公共记录 [英] Fetching Public Record From iCloud Using CloudKit

问题描述

我有以下代码将我的资产上传到iCloud

I have the following code for uploading my assets to iCloud

func uploadAsset(recordType: String, fileURL: URL) {
    let record = CKRecord(recordType: recordType)
    record["file"] = CKAsset(fileURL: fileURL)

    CKContainer.default().publicCloudDatabase.save(record) { savedRecord, error in
        if let saveError = error {
            print("An error occurred in \(saveError)")
        } else {
            print(savedRecord)
        }
    }
}

因为我能够进入CloudKit仪表板，然后实际查看记录并下载其附件。

It definitely works because I am able to go onto the CloudKit dashboard, and physically see the records as well as download their attached files.

以下是该函数输出的saveRecord的示例：

Here is an example of the savedRecord that is output from that function:

Optional(<CKRecord: 0x100f27f60; recordID=F6DF33CB-35DA-483A-A5B5-33542E435689:(_defaultZone:__defaultOwner__), recordChangeTag=izfmgx06, values={
    file = "<CKAsset: 0x1703e6800; path=/private/var/mobile/Containers/Shared/AppGroup/992A6367-11F5-491F-BE37-C9E4BBA865E6/voice/1487611173.95385.m4a, size=33547, UUID=D8F70489-1FF8-4CE8-99BE-390741E8136D, signature=<01a5bd3c fd9b8042 cb52cc23 3681af91 50aacaa5 97>>";
}, recordType=Voice>
{
    creatorUserRecordID -> <CKRecordID: 0x17003ebe0; recordName=__defaultOwner__, zoneID=_defaultZone:__defaultOwner__>
    lastModifiedUserRecordID -> <CKRecordID: 0x17003e740; recordName=__defaultOwner__, zoneID=_defaultZone:__defaultOwner__>
    creationDate -> 2017-02-21 14:24:28 +0000
    modificationDate -> 2017-02-21 14:24:28 +0000
    modifiedByDevice -> 3AB140FD824827C374412EBB6B72307C57DCF1E07A7FE58F13EBF445ACCB0EA3
    file -> <CKAsset: 0x1703e6800; path=/private/var/mobile/Containers/Shared/AppGroup/992A6367-11F5-491F-BE37-C9E4BBA865E6/voice/1487611173.95385.m4a, size=33547, UUID=D8F70489-1FF8-4CE8-99BE-390741E8136D, signature=<01a5bd3c fd9b8042 cb52cc23 3681af91 50aacaa5 97>>]

我认为，由于这是公共记录，我可以在共享相同自定义iCloud容器字符串的另一个应用程序中下载此文件。

I thought, due to this being a public record, I'd be able to download this inside another app that shares the same custom iCloud container string.

但是，使用RecordIDName（在这种情况下：F6DF33CB-35DA-483A -A5B5-33542E435689），我无法提取记录。

However, using the RecordIDName (in this case: F6DF33CB-35DA-483A-A5B5-33542E435689), I am unable to fetch the record.

这是我下载它的代码：

    let recordId = CKRecordID(recordName: "F6DF33CB-35DA-483A-A5B5-33542E435689")


    CKContainer.default().publicCloudDatabase.fetch(withRecordID: recordId) { (results, error) -> Void in

        DispatchQueue.main.async {
            if error != nil {

                print(" Error Fetching Record  " + error!.localizedDescription)
            } else {
                if results != nil {
                    print("pulled record")

                    let record = results as CKRecord!

                    print(record)
                }
            }
        }
    }

我只是得到如下错误：

 Error Fetching Record  Error fetching record <CKRecordID: 0x10024c6f0; recordName=6988103A-E795-441B-A115-2D044872AAAC, zoneID=_defaultZone:__defaultOwner__> from server: Record not found

任何帮助表示赞赏。提前致谢！ ：）

Any help appreciated. Thanks in advance! :)

推荐答案

错误在于使用

CKContainer.default()

在创建和提取阶段。相反，我应该在其中使用指定的自定义容器，即

In both the creation and pulling stages. Instead, I should have used a specified custom container inside, i.e.

CKContainer(identifier: "iCloud.tech.jackrobson.myApp")

这篇关于使用CloudKit从iCloud获取公共记录的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！