soggybag

// Create a color 
var myColor = TagColor.Red
// or, set a var to type TagColor
var aColor: TagColor
// Assign a TagColor
aColor = TagColor.Blue
// Alternately use the shorthand form
aColor = .Blue

soggybag

import UIKit

extension UIViewController {
    
    func animateThing(thing: UIView, offsetX: CGFloat, offsetY: CGFloat, alpha: CGFloat, time: NSTimeInterval, delay: NSTimeInterval) {
        let targetY = thing.center.y
        let targetX = thing.center.x
        let targetAlpha = thing.alpha
        
        thing.center.y = thing.center.y - offsetY

soggybag

extension Array {
    subscript (safe index: Int) -> Element? {
        return indices ~= index ? self[index] : nil
    }
}

// array[safe: index] 

soggybag

extension String {
    func stringToAttributedString() -> NSAttributedString {
        var html = self
        while let range = html.rangeOfString("\n") {
            html.replaceRange(range, with: "</br>")
        }
        
        html = "<span style='font-family: Helvetica; font-size:14pt'>"+html+"</span>"
        let data = html.dataUsingEncoding(NSUnicodeStringEncoding, allowLossyConversion: true)
        let attrStr = try! NSAttributedString(data: data!, options: [NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType], documentAttributes: nil)

soggybag

import UIKit
import MessageUI

class ViewController: UIViewController, MFMailComposeViewControllerDelegate {
    
    func sendEmail() {
        let mailVC = MFMailComposeViewController()
        mailVC.mailComposeDelegate = self
        mailVC.setToRecipients([])

soggybag

import UIKit
import MessageUI // Import MessageUI

// Add the delegate protocol
class ViewController: UIViewController, MFMessageComposeViewControllerDelegate {
    
    // Send a message 
    func sendMessage() {
        let messageVC = MFMessageComposeViewController()
        messageVC.body = "Message String"