01常用设置

透明度：homeNav.navigationBar.translucent = true

 修改大小UINavigationBar   

//self.navigationController.navigationBar.frame = CGRectMake(0, 20, 320, 100);

 

自定义一个导航条别修改他的颜色：

var customBar = UIView()

函数设置

 //4.MARK:创建导航条
    func createCustomNavigationBar()
    {
        customBar = UIView(frame: CGRectMake(0, 0, ScreenWidth, NavigationH))
        customBar.alpha = 1.0
        customBar.layer.zPosition = 2.0
        customBar.backgroundColor = UIColor(patternImage: UIImage(named: "nav_bg_iphone5")!)
        self.view.addSubview(customBar)

    }