r-dent

let IS_iOS_7 = UIDevice.currentDevice().systemVersion.hasPrefix("7")
let IS_iOS_8 = UIDevice.currentDevice().systemVersion.hasPrefix("8")
let IS_iPad = UI_USER_INTERFACE_IDIOM() == .Pad

let IS_IPHONE = UI_USER_INTERFACE_IDIOM() == .Phone
let IS_IPHONE_4S_AND_LOWER (IS_IPHONE && max(UIScreen.mainScreen().bounds.size.height, UIScreen.mainScreen().bounds.size.width) == 480.0)
let IS_IPHONE_5 = (IS_IPHONE && max(UIScreen.mainScreen().bounds.size.height, UIScreen.mainScreen().bounds.size.width) == 568.0)
let IS_iPhone6 = (IS_IPHONE && max(UIScreen.mainScreen().bounds.size.height, UIScreen.mainScreen().bounds.size.width) == 667)
let IS_iPhone6Plus = (IS_IPHONE && max(UIScreen.mainScreen().bounds.size.height, UIScreen.mainScreen().bounds.size.width) == 736)

bwhiteley

// Create CustomView.xib, set File's Owner to CustomView. 
// Link the top level view in the XIB to the contentView outlet.

class CustomView : UIView {
    @IBOutlet private var contentView:UIView?
    // other outlets
    
    override init(frame: CGRect) { // for using CustomView in code
        super.init(frame: frame)
        self.commonInit()

prrane

// based on : http://stackoverflow.com/questions/24752627/accessing-ios-address-book-with-swift-array-count-of-zero

    // http://stackoverflow.com/questions/24752627/accessing-ios-address-book-with-swift-array-count-of-zero
    
    class func extractABAddressBookRef(abRef: Unmanaged<ABAddressBookRef>!) -> ABAddressBookRef? {
        if let ab = abRef {
            return Unmanaged<NSObject>.fromOpaque(ab.toOpaque()).takeUnretainedValue()
        }
        return nil
    }

calebd

extension Array {
    
    func first() -> Element? {
        if isEmpty {
            return nil
        }
        return self[0]
    }
    
    func last() -> Element? {

StuartMorris0

Cocoa Pods Cocoapods Basic Cheat Sheet

Create a Podfile at the root of your project

platform :ios, '5.0'

pod 'AFNetworking'
pod 'OHAttributedLabel'

justin

#import <UIKit/UIKit.h>

@interface UIImageView (SGExtensions)

- (CGRect)sg_imageFrame;

@end

numo16

#define ApplicationDelegate                 ((AppDelegate *)[[UIApplication sharedApplication] delegate])
#define UserDefaults                        [NSUserDefaults standardUserDefaults]
#define NotificationCenter                  [NSNotificationCenter defaultCenter]
#define SharedApplication                   [UIApplication sharedApplication]
#define Bundle                              [NSBundle mainBundle]
#define MainScreen                          [UIScreen mainScreen]
#define ShowNetworkActivityIndicator()      [UIApplication sharedApplication].networkActivityIndicatorVisible = YES
#define HideNetworkActivityIndicator()      [UIApplication sharedApplication].networkActivityIndicatorVisible = NO
#define NetworkActivityIndicatorVisible(x)  [UIApplication sharedApplication].networkActivityIndicatorVisible = x
#define NavBar                              self.navigationController.navigationBar

icleversoft

// App Information
#define AppName                 [[NSBundle mainBundle] objectForInfoDictionaryKey:@"CFBundleName"]
#define AppVersion              [[NSBundle mainBundle] objectForInfoDictionaryKey:@"CFBundleVersion"]
#define AppDelegate(type)       ((type *)[[UIApplication sharedApplication] delegate])
#define NSAppDelegate(type)     ((type *)[[NSApplication sharedApplication] delegate])
#define SharedApp               [UIApplication sharedApplication]
#define NSSharedApp             [NSApplication sharedApplication]
#define Bundle                  [NSBundle mainBundle]
#define MainScreen              [UIScreen mainScreen]