cwagdev

- (void)viewWillDisappear:(BOOL)animated {
    if ([self.navigationController.viewControllers indexOfObject:self]==NSNotFound) {
       // back button was pressed.  We know this is true because self is no longer
       // in the navigation stack.  
    }
    [super viewWillDisappear:animated];
}

cwagdev

#import <UIKit/UIKit.h>

@interface UIColor (Grayscale)

- (UIColor *)grayscale;

@end

cwagdev

- (void)viewDidLoad {
    [super viewDidLoad];
	  
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(handleKeyboardShowNotification:) name:UIKeyboardWillShowNotification object:nil];
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(handleKeyboardHideNotification:) name:UIKeyboardWillHideNotification object:nil];
}

- (void)dealloc {
    [[NSNotificationCenter defaultCenter] removeObserver:self];
}

cwagdev

#define SYSTEM_VERSION_EQUAL_TO(v)                  ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] == NSOrderedSame)
#define SYSTEM_VERSION_GREATER_THAN(v)              ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] == NSOrderedDescending)
#define SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(v)  ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] != NSOrderedAscending)
#define SYSTEM_VERSION_LESS_THAN(v)                 ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] == NSOrderedAscending)
#define SYSTEM_VERSION_LESS_THAN_OR_EQUAL_TO(v)     ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] != NSOrderedDescending)

cwagdev

extension Array {
    func firstObject() -> T! {
        var firstItem: T!
        if !self.isEmpty {
            firstItem = self[0]
        }
        return firstItem
    }
    
    func lastObject() -> T! {

cwagdev

extension Array {
  var any: T? {
    get {
      if self.count > 0 {
        let randomIndicie = arc4random_uniform(UInt32(self.count))
        return self[Int(randomIndicie)]
      } else {
        return nil
      }
    }

cwagdev

Dear Mr. Wagner,

Thank you for contacting me with your thoughts regarding net neutrality. I appreciate hearing from you on this matter.

As you know, net neutrality is the idea that internet providers and governments should treat all data on the internet equally and not discriminate based on the type of content. In 2010, the Federal Communications Commission (FCC) approved an Open Internet Order, which prohibits broadband providers from blocking or discriminating against Internet content, making net neutrality the law.

There is no question that the advancement of the Internet has spurred huge opportunities for all Americans and substantially enhanced our national economy. Access to the Internet has moved from a luxury to a necessity. As a result of the substantial increase of Internet demand, more pressure has been put on the existing infrastructure, and additional enormous investments in infrastructure are necessary in order to accommodate this ever-growing demand.

In order to ensure that we benefit fr

cwagdev

extension UIApplication {
    class var versionString: String {
        get {
            if let bundleInfoDictionary = NSBundle.mainBundle().infoDictionary {
                let buildVersionString = bundleInfoDictionary["CFBundleVersion"] as String
                let marketingVersionString = bundleInfoDictionary["CFBundleShortVersionString"] as String
                return marketingVersionString + " (\(buildVersionString))"
            } else {
                return "Unknown"
            }

cwagdev

func loginUserWithUsername(username: String, password: String) throws -> String {
    guard username.characters.count != 0 else {
        throw LoginError.EmptyUsername
    }
    
    guard password.characters.count != 0 else {
        throw LoginError.EmptyPassword
    }
    
    ///Handle all the other,

cwagdev

protocol ValueForKeyLookupable {
    func valueForKey(key: String) -> Any?
}

extension ValueForKeyLookupable {
    func valueForKey(key: String) -> Any? {
        let mirror = reflect(self)
        for index in 0..<mirror.count {
            let child = mirror[index]
            if key == child.0 {return child.1.value}