Question

我想让所有用户＆＃39;存储在cloudkit中的位置，然后由每个设备下载。我在storeLocation中的代码上标记了我收到错误：

＆＃34;无法转换类型＆＃39;（NSError？，[CKRecord]？）＆＃39; （又名＆＃39;（可选，可选＆gt;）＆＃39;）预期参数类型＆＃39;（错误：NSError ?,记录：[CKRecord]？） - ＆gt;空隙＆＃39;＆＃34;

//saves location in cloud kit //currently works well:

var locArray = [CKRecord]()
func storeLocation(location:CLLocation) {
        let locationRecord = CKRecord(recordType: "location")
        locationRecord.setObject(location, forKey: "location")
        let publicData = CKContainer.defaultContainer().publicCloudDatabase
        publicData.saveRecord(locationRecord) { (records, error) in
            if error != nil {
                print("error saving locations: \(error)")
            } else {
                print("Locations saved: \(records)")
                loadLocation((error, self.locArray)) //where I get error******
            }
        }
    }

//fetches location from cloud kit:

func loadLocation(completion: (error:NSError?, records:[CKRecord]?) -> Void)
{
    let query = CKQuery(recordType: "Location", predicate: NSPredicate(value: true))
    CKContainer.defaultContainer().publicCloudDatabase.performQuery(query, inZoneWithID: nil){
        (records, error) in
        if error != nil {
            print("error fetching locations")
            completion(error: error, records: nil)
        } else {
            print("found locations: \(records)")
            completion(error: nil, records: records)
        }
    }
}

Answer 1

我相信而不是：

loadLocation((error, self.locArray))

你需要这样称呼：

loadLocation() { (error, records) in
    // do something here with the returned data.
}

如何使用查询在swift中获取cloudkit数据

1 个答案: