cloudkit

问题 I am using CloudKit as a server backend for my iOS application. I'm using it to house some relatively static data along with a handful of images(CKAsset). I ran into a problem when the time came for me to actually fetch those assets from the public database. They load at an excruciatingly slow speed. My use case is to load an image into every cell inside of a collection view. The images are only 200kb in size, but the fetch process took an average of 2.2 seconds for the download to complete

问题 My predicate wants to exclude some records that are already downloaded and available in a [CKRecordID]. Now I can query 1 CKRecordID[0], but not the [CKRecordID] array. How can I query the array? let excludeIDs: [CKRecordID] This works: let pred1 = NSPredicate(format: "NOT(recordID = %@)", excludeIDs[0]) But this doesn't: let pred1 = NSPredicate(format: "NOT(recordID IN %@)", excludeIDs) ERROR: loadImageCompareRecordIDsAndEndDateThatHaveNotEnded Error: Invalid predicate: Invalid predicate:

问题 I want to set up a simple CKSubscription that notifies me a recordType was created, how? 回答1: After experimenting a while this is how to setup a minimal CKSubscription. You have to test it on Device, push notification does not work on simulator. You can add record in Dashboard, that will trigger push notification too. func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: NSDictionary?) -> Bool { application.registerUserNotificationSettings

问题 In my app I want to share data via iCloud with other iCloud users but not with the whole world but with selected other iCloud users. I thought about a way this could work, but I am not sure if it will work and if I forgot or misunderstood some things. Let s say User A wants to be able to share a string with other iCloud users but not with everyone. So User A wants to share „Hello World“ to User B but not to user C and not to User D. So my app has a Public Data Base and a Record Type that is

问题 I want to save Event and Image (for event) records. I want to show uploading progress in UI. Event is little object with text and location. Image is big object with photo as UIImage. Image record is first item in array, event is second. I create CKModifyRecordsOperation and set two CKRecord objects to recordsToSave Than I set perRecordProgressBlock : [operation setPerRecordProgressBlock:^(CKRecord *record, double progress) { NSLog(@"#record: %@ progress: %f", record.recordType, progress); }];

问题 I want to save Event and Image (for event) records. I want to show uploading progress in UI. Event is little object with text and location. Image is big object with photo as UIImage. Image record is first item in array, event is second. I create CKModifyRecordsOperation and set two CKRecord objects to recordsToSave Than I set perRecordProgressBlock : [operation setPerRecordProgressBlock:^(CKRecord *record, double progress) { NSLog(@"#record: %@ progress: %f", record.recordType, progress); }];

问题 I have a problem with the following predicate: NSPredicate *predicate = [NSPredicate predicateWithFormat:@"(creatorUserRecordID == %@) OR (toUser == %@)", userId, userId]; When I use it in query CKQuery *query = [[CKQuery alloc] initWithRecordType:@"Message" predicate:predicate]; I have an error that says: 'CKException', reason: 'Unexpected expression'. When I use these two seperately like this: NSPredicate *predicate1 = [NSPredicate predicateWithFormat:@"(creatorUserRecordID == %@)", userId]

问题 I'm trying to download a batch of records from my iCloud public database using CloudKit and the cursor. The code works fine for the first 3 executions, regardless of how the resultsLimit is set, but the 4th completion block is never executed. If resultsLimit is not set I get 300 records, if it's set to 50 I get 150, if it's set to 5 I get 15... No error is reported and the block appears to be added but is never executed. Platform is OS X. Here's the code in question: let queryOp =

问题 I'm trying to download a batch of records from my iCloud public database using CloudKit and the cursor. The code works fine for the first 3 executions, regardless of how the resultsLimit is set, but the 4th completion block is never executed. If resultsLimit is not set I get 300 records, if it's set to 50 I get 150, if it's set to 5 I get 15... No error is reported and the block appears to be added but is never executed. Platform is OS X. Here's the code in question: let queryOp =

问题 I try to download all record with a specific recordType that recordID is not matches with a certain one. But I get an error. Any idea? I thought I can mark as queryable only manually added fields. <CKError 0x15df2a10: "Invalid Arguments" (12/2015); server message = "Field '___recordID' is not marked queryable"; uuid = ECDD0C97-550F-4DD5-942D-AF4DF8917EEB; container ID = "iCloud.com.kukodajanos.Movie-Buffs"> let query = CKQuery(recordType: "UserSetting", predicate: NSPredicate(format: