1.导航栏是否隐藏
self.navigationController?.navigationBar.hidden = false
2.导航栏的最底部颜色设置
//backgroundColor 是最底下的color
self.navigationController?.navigationBar.backgroundColor = UIColor.redColor()
3.导航栏的表层颜色,即首先看到的颜色
//barTintColor 是表层颜色
self.navigationController?.navigationBar.barTintColor = UIColor.grayColor()
4.导航栏中间标题title的颜色,大小,字体设置
self.navigationController?.navigationBar.titleTextAttributes = [NSForegroundColorAttributeName:UIColor.blueColor(),NSFontAttributeName:UIFont(name: "Heiti SC", size: 24.0)!]
5.导航栏隐藏左边backitem,即leftbarbuttonitem
//完全隐藏backItem//
self.navigationItem.setHidesBackButton(true, animated: true)
6.导航栏leftbarbuttonitem的颜色设置
swiftself.navigationController?.navigationBar.tintColor = UIColor.whiteColor()
7.导航栏leftbarbuttonitem的字体,颜色,大小设置
self.navigationItem.leftBarButtonItem?.setTitleTextAttributes([NSForegroundColorAttributeName:UIColor.blueColor(),NSFontAttributeName: UIFont(name: "Chalkduster", size: 13)!], forState: UIControlState.Normal)
8.导航栏重新定义leftbarbuttonitem
//重新定义backItem,将覆盖原来的BackItem.与storyboard中拖入一个item,效果一样。都是覆盖原来的backitem。
//第一种代码定义方式
self.navigationItem.setLeftBarButtonItem(UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.Add, target: self, action: "function"), animated: true)
//第二种代码定义方式
self.navigationItem.leftBarButtonItem = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.Add, target: self, action: "function")
//第三种代码定义的方式
self.navigationItem.setLeftBarButtonItem(UIBarButtonItem(title: "<Grandre", style: UIBarButtonItemStyle.Plain, target: self, action: "function"), animated: true)
9.导航栏设置成透明
//将导航栏设置成透明
self.navigationController?.navigationBar.setBackgroundImage(UIImage(), forBarMetrics: UIBarMetrics.Default)
self.navigationController!.navigationBar.shadowImage = UIImage()
self.navigationController?.navigationBar.translucent = true
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