[Code-only] Developing Sina Weibo in Swift 2.0 -- day 1, swift2.0

[Code-only] Developing Sina Weibo in Swift 2.0 -- day 1, swift2.0

Development Environment: Xcode 7 Beta 4

1.1: initial deployment architecture

1.2 set the root controller (AppDelegate. swift)

<span style="font-family:Microsoft YaHei;">   func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {        // Override point for customization after application launch.                window = UIWindow (frame: UIScreen.mainScreen().bounds )        window?.backgroundColor = UIColor.whiteColor()        window?.rootViewController = MainUITabBarController()        window?.makeKeyAndVisible()        return true    }</span>

1.3 custom TarbBar

<Span style = "font-family: Microsoft YaHei;"> import UIKitclass MainUITabBarController: UITabBarController {override func viewDidLoad () {super. viewDidLoad () // Do any additional setup after loading the view. addChildViewControllers () setComposeButton ()} // set the Button private func setComposeButton () {// calculate the Button height let w = tabBar. bounds. width/CGFloat (viewControllers !. Count) // Button existing width and height Rect let rect = CGRect (x: 0, y: 0, width: w, height: tabBar. bounds. height) // use offset to set the Button position composeButton. frame = CGRectOffset (rect, 2 * w, 0)} // Add all sub-controllers private func addChildViewControllers () {// Start add all sub-controllers javasaddchildviewcontroller (HomeTableViewController (), title: "Homepage", imageName: "tabbar_home") addChildViewController (MessageTableViewController (), title: "message", imageName: "tabbar_message_center") addChildViewController (UIViewController ()) addChildViewController (DiscoverTableViewController (), title: "", imageName: "tabbar_discover") addChildViewController (profileTableViewController (), title: "", imageName: "tabbar_profile ") // end certificate} // lazy create Button lazy private var composeButton: UIButton = {let button = UIButton () // Start to set the Button material ----------------------------------- button. setImage (UIImage (named: "tabbar_compose_icon_add"), forState: UIControlState. normal) button. setImage (UIImage (named: "tabbar_compose_icon_add_highlighted"), forState: UIControlState. highlighted) button. setBackgroundImage (UIImage (named: "tabbar_compose_button"), forState: UIControlState. normal) button. setBackgroundImage (UIImage (named: "tabbar_compose_button_highlighted"), forState: UIControlState. highlighted) // end ------------------------------------------------- // you are not prompted to knock on self. tabBar. addSubview (button) button. addTarget (self, action: "ClickComposeButton", forControlEvents: UIControlEvents. touchUpInside) return button} () // Add Controller Method //-parameter vc: View Controller //-parameter title: title //-parameter imageName: image name private func addChildViewController (vc: UIViewController, title: String, imageName: String) {tabBar. tintColor = UIColor. orangeColor () vc. title = title vc. tabBarItem. image = UIImage (named: imageName) let nav = UINavigationController (rootViewController: vc) addChildViewController (nav)} </span>

1.4 set the logon interface through the inheritance relationship

Note: Determine whether to switch the interface based on whether the user logs on.

1.4.1 customize a controller that inherits the UITableViewController

1.4.2 modify the inheritance relationships of all controllers and inherit the BaseTableViewController

1.4.3 set the View of BaseTableViewController

<Span style = "font-family: Microsoft YaHei;"> // set custom logon View private func setVistorView () {// create an empty View, test Using view = UIView () // set the color view. backgroundColor = UIColor. orangeColor ()} </span>

1.4.4 override the loadView () method of BaseTableViewController

<Span style = "font-family: Microsoft YaHei;"> // defines whether a user is logged on to the switch. var userLogin = true </span>

<Span style = "font-family: Microsoft YaHei;"> override func loadView () {// determines whether the View userLogin is successfully switched during user logon? Super. loadView (): setVistorView ()} </span>

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