jeksys

extension String{
    
    var length: Int{
        get{
            return self.utf16Count
        }
    }
    
    func isValidEmail() -> Bool {
        let emailRegex = NSRegularExpression(pattern: "^[A-Z0-9._%+-]+@[A-Z0-9.-]+\\.[A-Z]{2,4}$", options: .CaseInsensitive, error: nil)

jeksys

func uicolorFromHex(rgbValue:UInt32)->UIColor{
    let red = CGFloat((rgbValue & 0xFF0000) >> 16)/256.0
    let green = CGFloat((rgbValue & 0xFF00) >> 8)/256.0
    let blue = CGFloat(rgbValue & 0xFF)/256.0

    return UIColor(red:red, green:green, blue:blue, alpha:1.0)
}

jeksys

extension NSTimer {
    class func scheduledTimerWithTimeInterval(interval: NSTimeInterval, repeats: Bool, handler: NSTimer! -> Void) -> NSTimer {
        let fireDate = interval + CFAbsoluteTimeGetCurrent()
        let repeatInterval = repeats ? interval : 0
        let timer = CFRunLoopTimerCreateWithHandler(kCFAllocatorDefault, fireDate, repeatInterval, 0, 0, handler)
        CFRunLoopAddTimer(CFRunLoopGetCurrent(), timer, kCFRunLoopCommonModes)
        return timer
    }
}
 

jeksys

    func listEntities(managedContext: NSManagedObjectContext, entityName: String, groupBy: Array<String>)->NSArray{
        
        var error: NSError?
        var results : NSArray = NSArray()
        
        let fetchRequest = NSFetchRequest(entityName: entityName)
        if groupBy.count > 0{
            fetchRequest.propertiesToGroupBy = groupBy
        }
        if let results = managedContext.executeFetchRequest(fetchRequest, error: &error) {

jeksys

    func delay(delay:Double, closure:()->()) {
        dispatch_after(
            dispatch_time(
                DISPATCH_TIME_NOW,
                Int64(delay * Double(NSEC_PER_SEC))
            ),
            dispatch_get_main_queue(), closure)
    }

jeksys

    NSString *path = [[NSBundle mainBundle] pathForResource:@"document" ofType:@"pdf"];
    NSURL *targetURL = [NSURL fileURLWithPath:path];
    NSURLRequest *request = [NSURLRequest requestWithURL:targetURL];
    [webView loadRequest:request];

jeksys

<plist version="1.0">
    <array>
 
 
        <dict>
            <key>category</key>  <string>classic</string>
            <key>quote</key>  <string>Frankly my dear, I don't give a dam.</string>
            <key>source</key>  <string>Gone with the wind</string>
        </dict>

jeksys

    dispatch_async(dispatch_get_main_queue(), ^{
        previewToSave = nil;
        CGSize screenSize = self.view.bounds.size;
        float scaleFactor = 0.2;
        const size_t originalWidth = screenSize.width * scaleFactor;
        const size_t originalHeight = screenSize.height * scaleFactor;

        CGColorSpaceRef colorSpaceRef = CGColorSpaceCreateDeviceRGB();
        CGContextRef ctx = CGBitmapContextCreate(nil, originalWidth, originalHeight, 8, 4*(int)originalWidth, colorSpaceRef, kCGImageAlphaPremultipliedLast);
        if (ctx != nil) {

jeksys

    dispatch_async(dispatch_get_main_queue(), ^{
        previewToSave = nil;
        CGSize screenSize = self.view.bounds.size;
        float scaleFactor = 0.2;
        const size_t originalWidth = screenSize.width * scaleFactor;
        const size_t originalHeight = screenSize.height * scaleFactor;

        CGColorSpaceRef colorSpaceRef = CGColorSpaceCreateDeviceRGB();
        CGContextRef ctx = CGBitmapContextCreate(nil, originalWidth, originalHeight, 8, 4*(int)originalWidth, colorSpaceRef, kCGImageAlphaPremultipliedLast);
        if (ctx != nil) {

jeksys

    double delayInSeconds = 2.0;
    dispatch_time_t popTime = dispatch_time(DISPATCH_TIME_NOW, delayInSeconds * NSEC_PER_SEC);
    dispatch_after(popTime, dispatch_get_main_queue(), ^(void) {