swift代码之路（一）
class AppDelegate:UIResponder, UIApplicationDelegate {
var window:UIWindow?
func application(application:UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject:AnyObject]?) -> Bool {
// Override point for customization after application launch.
// 创建窗口
window =UIWindow(frame: UIScreen.mainScreen().bounds)
window?.backgroundColor =UIColor.whiteColor()
window?.rootViewController =SPFMainViewController()
window?.makeKeyAndVisible()
returntrue
}
在继承自UITabBarController控制器中这样写
需要建立自己页面的控制器
import UIKit
/// 主控制器
class SPFMainViewController: UITabBarController {
overridefunc viewDidLoad() {
super.viewDidLoad()
setupChildControllers()
// Do any additional setup after loading the view.
}
overridefunc didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}
//extension类似于OC中的分类，在Swift中还可以切分代码块
extension SPFMainViewController {
/**
* 设置所有子控制器
*/
privatefunc setupChildControllers() {
addChildViewController(SPFFirstViewController(), title:"首页", imageName:"tabbar_first")
addChildViewController(SPFSpecialViewController(), title:"专题", imageName:"tabbar_special")
addChildViewController(SPFClassifyViewController(), title:"分类", imageName:"tabbar_class")
addChildViewController(SPFShopCarViewController(), title:"购物车", imageName:"tabbar_shopcar")
addChildViewController(SPFProfileViewController(), title:"我的", imageName:"tabbar_me")
}
/**
使用字典创建一个子控制器
- parameter dict: 信息字典 [clsNme ,title, imageName]
- returns: 子控制器
*/
privatefunc addChildViewController(controller:UIViewController, title:String, imageName:String){
controller.tabBarItem.image =UIImage(named: imageName)?.imageWithRenderingMode(.AlwaysOriginal)
controller.tabBarItem.selectedImage =UIImage(named: imageName +"_selected")?.imageWithRenderingMode(.AlwaysOriginal)
controller.tabBarItem.title = title
controller.title = title
//设置tabbar的标题字体颜色（大小）
controller.tabBarItem.setTitleTextAttributes([NSForegroundColorAttributeName:UIColor.orangeColor()], forState: .Selected)
//设置字体颜色
//controller.tabBarItem.setTitleTextAttributes([NSFontAttributeName: UIFont.systemFontOfSize(14)], forState: .Normal)
let nav =SPFNavigationController()
nav.addChildViewController(controller)
addChildViewController(nav)
}
}
注释都标的很详细，这是swift2.0的写法 3.0在设置按钮norml的地方与此处稍有不同大家可以上网搜索语法变化哟