mlabraca

import UIKit

private var flatAssociatedObjectKey: UInt8 = 0

/*
 An extension that adds a "flat" field to UINavigationBar. This flag, when
 enabled, removes the shadow under the navigation bar.
 */
extension UINavigationBar {
    var flat: Bool {

mlabraca

extension NSMutableAttributedString {
    @discardableResult func bold(_ text: String) -> NSMutableAttributedString {
        let attrs: [NSAttributedStringKey: Any] = [.font: UIFont(name: "AvenirNext-Medium", size: 12)!]
        let boldString = NSMutableAttributedString(string:text, attributes: attrs)
        append(boldString)

        return self
    }

    @discardableResult func normal(_ text: String) -> NSMutableAttributedString {

mlabraca

Post notification:
 * swift:
    NotificationCenter.default.post(name: .onCountryChanged, object: nil)
 * objc:
    [[NSNotificationCenter defaultCenter] postNotificationName:@"on-country-changed" object:nil];

Register notification:
 * swift:
     NotificationCenter.default.addObserver(self, selector: #selector(self.someSelector), name: .onCountryChanged, object: nil)
 * objc:

mlabraca

extension UILabel {
  
    func highlight(searchText: String, color: UIColor = .yellow) {
        guard let labelText = self.text else { return }        
        do {
            let mutableString = NSMutableAttributedString(string: labelText)
            let regex = try NSRegularExpression(pattern: searchText, options: .caseInsensitive)
            
            for match in regex.matches(in: labelText, options: NSRegularExpression.MatchingOptions(rawValue: 0), range: NSRange(location: 0, length: labelText.utf16.count)) as [NSTextCheckingResult] {
                mutableString.addAttribute(NSBackgroundColorAttributeName, value: color, range: match.range)

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extension NSDate {
    convenience init(fromString: String) {
        let formatter = NSDateFormatter()
        formatter.dateFormat = "yyyy/MM/dd HH:mm"
        formatter.timeZone = NSTimeZone(name: "GMT")
        let date = formatter.dateFromString(fromString) ?? NSDate()
        
        self.init(timeInterval:0, sinceDate:date)
    }
}

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func executionTimeInterval(block: () -> ()) -> CFTimeInterval {
    let start = Date() // <<<<<<<<<< Start time
    block()
    let end = Date()   // <<<<<<<<<<   end time
    let timeInterval: Double = end.timeIntervalSince(start);
    print(timeInterval)
    return timeInterval
}

//Example of use

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//Swfit 2
func delay(seconds seconds: Double, completionBlock: () -> ()) {
    let delay = seconds * Double(NSEC_PER_SEC)
    let time = dispatch_time(DISPATCH_TIME_NOW, Int64(delay))
    dispatch_after(time, dispatch_get_main_queue()) {
        completionBlock()
    }
}

//Swift 3

mlabraca

import UIKit
import XCPlayground

//For more info, visit: http://blog.human-friendly.com/swift-2-xcode-7-gm-at-least-generic-support-for-at-objc-protocols

func reloadTableView(tableView: UITableView, dataSource: GenericTVCDatasource<String>, data: [String]) -> UITableView {
    dataSource.reload(data)
    tableView.reloadData()
    return tableView
}

mlabraca

import UIKit
import SystemConfiguration.CaptiveNetwork

class NetworkInfo {
  
  func printSsidInfo {
    if let ssidInfo = fetchSSIDInfo() as? [String:AnyObject], ssID = ssidInfo["SSID"] as? String {
        println("SSID: \(ssID)")
    } else {
        println("SSID not found")

mlabraca

/** Returns first non-empty SSID network info dictionary.
 *  @see CNCopyCurrentNetworkInfo 
 * remember to import this:
 * @import SystemConfiguration.CaptiveNetwork;
 **/
 
+ (id)fetchSSIDInfo {
    NSArray *ifs = (__bridge_transfer NSArray *)CNCopySupportedInterfaces();
    //NSLog(@"Supported interfaces: %@", ifs);
    NSDictionary *info;