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//Add Framework: AudioToolbox.framework
#import <AudioToolbox/AudioToolbox.h>
//Obj-C: 
AudioServicesPlayAlertSound(kSystemSoundID_Vibrate);
AudioServicesPlaySystemSound(kSystemSoundID_Vibrate);
//Swift: 
AudioServicesPlayAlertSound(UInt32(kSystemSoundID_Vibrate));
AudioServicesPlaySystemSound(UInt32(kSystemSoundID_Vibrate))
  

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// Objective-C
CKModifyRecordsOperation *modifyRecordsOperation = [[CKModifyRecordsOperation alloc] initWithRecordsToSave:records recordIDsToDelete:nil];
modifyRecordsOperation.atomic=NO;
modifyRecordsOperation.perRecordCompletionBlock = ^(CKRecord *record, NSError *error) {
//Swift 4.0
let modifyRecordsOperation = CKModifyRecordsOperation(recordsToSave: records, recordIDsToDelete: nil)
modifyRecordsOperation.isAtomic = false
modifyRecordsOperation.perRecordCompletionBlock = {(_ record: CKRecord, _ error: Error?) -> Void in } as? Void)

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CKModifyRecordsOperation *modifyRecordsOperation = [[CKModifyRecordsOperation alloc] initWithRecordsToSave:records recordIDsToDelete:nil];
modifyRecordsOperation.atomic=NO;

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- (UITableViewCell *)tableView:(UITableView  *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    //after changes
    static NSString *CellIdentifier = @"Cella"; // change 1 - not the same with storyboard prototype cell
    UITableViewCell *cell = (UITableViewCell *)[self.myTableView dequeueReusableCellWithIdentifier:CellIdentifier];
    float screenW1 = [UIScreen mainScreen].bounds.size.width;
    UIImage *cellImage;
    UIButton *cellImageView;
    UILabel *firstLabel, *secondLabel;
    NSString *pathCircle;
    if(!cell) {// change 2 - use initWithStyle reuseIdentifier - drawing, create frames just here

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- (IBAction)startSync:(id)sender {
    
    NSLog(@"startSync");
    AppDelegate *appdelegate =(AppDelegate *)[UIApplication sharedApplication].delegate;
    [appdelegate sync];
}

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#pragma mark - QSCoreDataChangeManagerDelegate

- (void)changeManagerRequestsContextSave:(QSCoreDataChangeManager *)changeManager completion:(void (^)(NSError *))completion
{
    if (debug==1) {
        NSLog(@"Running %@ '%@'", self.class, NSStringFromSelector(_cmd));
    }
    __block NSError *error = nil;
    [self.managedObjectContext performBlockAndWait:^{
        [self.managedObjectContext save:&error];

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#pragma mark - ICLOUD
- (BOOL)iCloudAccountIsSignedIn {
    if (debug==1) {
        NSLog(@"Running %@ '%@'", self.class, NSStringFromSelector(_cmd));
    }
    id token = [[NSFileManager defaultManager] ubiquityIdentityToken];
    if (token) {
        NSLog(@"** iCloud is SIGNED IN with token '%@' **", token);
        return YES;
    }

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#pragma mark - SYNC
- (QSCloudKitSynchronizer *)synchronizer
{
    if ([self iCloudEnabledByUser] && [self iCloudAccountIsSignedIn]) {
        NSLog(@"** iCloud available SYNCHRONIZER! **");
        if (!_synchronizer) {
            _synchronizer = [QSCloudKitSynchronizer cloudKitSynchronizerWithContainerName:@"iCloud.com.SyncKitTest" managedObjectContext:self.managedObjectContext changeManagerDelegate:self];
        }
    }else{
        NSLog(@"** iCloud not available **");

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#pragma mark - Core Data stack
@synthesize managedObjectContext = _managedObjectContext;
@synthesize managedObjectModel = _managedObjectModel;
@synthesize persistentStoreCoordinator = _persistentStoreCoordinator;

- (NSURL *)applicationDocumentsDirectory {
    // The directory the application uses to store the Core Data store file. This code uses a directory named "com.colourbox.cloudkittest.prueba" in the application's documents directory.
    return [[[NSFileManager defaultManager] URLsForDirectory:NSDocumentDirectory inDomains:NSUserDomainMask] lastObject];
}

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   @IBAction func returned(from segue: UIStoryboardSegue)  {
        
        if (segue.identifier! == "UnwindFromSecondView") {
            
            self.view.backgroundColor! = UIColor.orange
        
        }
        
    }