Swift主题色顶级解决方案

标签：swift主题色   tabbar   navigationbar   uitabbarcontroller   uinavigationbarcontr   

extension UIColor {
    
    //主题色
    class func applicationMainColor() -> UIColor {
        return UIColor(red: 238/255, green: 64/255, blue: 86/255, alpha:1)
    }
    
    //第二主题色
    class func applicationSecondColor() -> UIColor {
        return UIColor.lightGrayColor()
    }
    
    //警告颜色
    class func applicationWarningColor() -> UIColor {
        return UIColor(red: 0.1, green: 1, blue: 0, alpha: 1)
    }
    
    //链接颜色
    class func applicationLinkColor() -> UIColor {
        return UIColor(red: 59/255, green: 89/255, blue: 152/255, alpha:1)
    }
    
}

 func configTabBar() {
        let items = self.tabBar.items
        for item in items as [UITabBarItem] {
            let dic = NSDictionary(object: UIColor.applicationMainColor(),
             forKey: 	NSForegroundColorAttributeName)
            item.setTitleTextAttributes(dic, 
             forState: UIControlState.Selected)
        }
    }

self.tabBar.selectedImageTintColor = UIColor.applicationMainColor()

Tips注意事项

let imageNormal = UIImage(contentsOfFile: "imageNormal")?.
imageWithRenderingMode(UIImageRenderingMode.AlwaysOriginal)
let imageSelected = UIImage(contentsOfFile: "imageSelected")
let tabBarItem = UITabBarItem(title: "title",
         image: imageNormal,
         selectedImage: imageSelected)

extension UIViewController {
    func viewDidLoadForChangeTitleColor() {
        self.viewDidLoadForChangeTitleColor()
        if self.isKindOfClass(UINavigationController.classForCoder()) {
           self.changeNavigationBarTextColor(self as UINavigationController)
        }
    }
    
    func changeNavigationBarTextColor(navController: UINavigationController) {
        let nav = navController as UINavigationController
        let dic = NSDictionary(object: UIColor.applicationMainColor(),
         forKey:NSForegroundColorAttributeName)
        nav.navigationBar.titleTextAttributes = dic
        nav.navigationBar.barTintColor = UIColor.applicationSecondColor()
        nav.navigationBar.tintColor = UIColor.applicationMainColor()
        
    }
  
}

func swizzlingMethod(clzz: AnyClass, #oldSelector: Selector, #newSelector: Selector) {
    let oldMethod = class_getInstanceMethod(clzz, oldSelector)
    let newMethod = class_getInstanceMethod(clzz, newSelector)
    method_exchangeImplementations(oldMethod, newMethod)
}

  func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: NSDictionary?) -> Bool {
        swizzlingMethod(UIViewController.self, 
        oldSelector: "viewDidLoad", 
        newSelector: "viewDidLoadForChangeTitleColor")
	//do others
        return true
    }

4.原理说明

self.viewDidLoadForChangeTitleColor()

extension UILabel {
    var colorString: String {
        set(newValue) {
            switch newValue {
            case "main":
                self.textColor = UIColor.applicationMainColor()
            case "second":
                self.textColor = UIColor.applicationSecondColor()
            case "warning":
                self.textColor = UIColor.applicationWarningColor()
            default:
                self.textColor = UIColor.applicationSecondColor()
            }
        }
        get {
            return self.colorString
        }
    }
}

4.总结

Swift主题色顶级解决方案

标签：swift主题色   tabbar   navigationbar   uitabbarcontroller   uinavigationbarcontr   

原文地址：http://blog.csdn.net/g1jun/article/details/41543885