ramakser

let fmt = NSDateFormatter()
fmt.weekdaySymbols // -> ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"]
fmt.shortWeekdaySymbols // -> ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"]
fmt.veryShortWeekdaySymbols // -> ["S", "M", "T", "W", "T", "F", "S"]
fmt.standaloneWeekdaySymbols // -> ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"]
fmt.shortStandaloneWeekdaySymbols // -> ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"]
fmt.veryShortStandaloneWeekdaySymbols // -> ["S", "M", "T", "W", "T", "F", "S"]

ramakser

    func JSONStringify(value: [String: AnyHashable],prettyPrinted:Bool = false) -> String{
        let options = prettyPrinted ? JSONSerialization.WritingOptions.prettyPrinted : JSONSerialization.WritingOptions(rawValue: 0)
        
        if JSONSerialization.isValidJSONObject(value) {
            do {
                let data = try JSONSerialization.data(withJSONObject: value, options: options)
                if let string = NSString(data: data, encoding: String.Encoding.utf8.rawValue) {
                    return string as String
                }
            } catch {

ramakser

resultsSize contains the size of the data source array, self.results, before new data is added from the data at newImages.

[self.collectionView performBatchUpdates:^{

    int resultsSize = [self.results count];
    [self.results addObjectsFromArray:newImages];
    NSMutableArray *arrayWithIndexPaths = [NSMutableArray array];

    for (int i = resultsSize; i < resultsSize + newImages.count; i++)
          [arrayWithIndexPaths addObject:[NSIndexPath indexPathForRow:i inSection:0]];

ramakser

Date Formats a: AM/PM
    A: 0~86399999 (Millisecond of Day)

    c/cc: 1~7 (Day of Week)
    ccc: Sun/Mon/Tue/Wed/Thu/Fri/Sat
    cccc: Sunday/Monday/Tuesday/Wednesday/Thursday/Friday/Saturday

    d: 1~31 (0 padded Day of Month)
    D: 1~366 (0 padded Day of Year)

ramakser

        self.navigationController?.navigationBar.translucent = false
        
        guard let subviews = self.navigationController?.navigationBar.subviews else { return }
        for parent in subviews {
            for childView in parent.subviews {
                if(childView is UIImageView) {
                    childView.removeFromSuperview()
                }
            }
        }

ramakser

extension UIColor {
   convenience init(red: Int, green: Int, blue: Int) {
       assert(red >= 0 && red <= 255, "Invalid red component")
       assert(green >= 0 && green <= 255, "Invalid green component")
       assert(blue >= 0 && blue <= 255, "Invalid blue component")

       self.init(red: CGFloat(red) / 255.0, green: CGFloat(green) / 255.0, blue: CGFloat(blue) / 255.0, alpha: 1.0)
   }

   convenience init(netHex:Int) {

ramakser

From within KeyChain export the following both in p12 format, without giving password:

Apple Development Push Services certificate as cert.p12
primary key under Apple Development Push Services as pkey.p12
In terminal go to the directory where you have exported the certificates and convert the p12 files to pem format and concatenate them as follows:

$ openssl pkcs12 -in pkey.p12 -out pkey.pem -nodes -clcerts
$ openssl pkcs12 -in cert.p12 -out cert.pem -nodes -clcerts
$ cat cert.pem pkey.pem > iphone_ck.pem

ramakser

 let stringArray = modelsList[indexPath.row].description.componentsSeparatedByCharactersInSet(
                NSCharacterSet.decimalDigitCharacterSet().invertedSet)
            let newString = stringArray.joinWithSeparator("")

ramakser

 -(void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath{

     /*************  For bottom to top animation *****************/
     if ([animationType isEqualToString:@"BottomToTop"]) {
        UIView *cellContentView = [cell contentView];
        CGFloat rotationAngleDegrees = -30;
        CGFloat rotationAngleRadians = rotationAngleDegrees * (M_PI/180);
        CGPoint offsetPositioning = CGPointMake(0, cell.contentView.frame.size.height*4);
        CATransform3D transform = CATransform3DIdentity;
        transform = CATransform3DRotate(transform, rotationAngleRadians, -50.0, 0.0, 1.0);

ramakser

- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath
{
    UITabBarItem *item = self.items[indexPath.row];
    CGSize size = CGSizeMake(100, 30);
    CGRect expectedLabelSize = [item.title boundingRectWithSize:size options:NSStringDrawingUsesLineFragmentOrigin attributes:@{ NSFontAttributeName:[UIFont VWTextOfficeRegularWithSize:12] } context:nil];

    CGFloat height = CGRectGetHeight(collectionView.frame);

    CGFloat width = ceilf(expectedLabelSize.size.width) + 40;