Swift 學習記錄--2

1、在UIView 上面 拖上 navigationBar ,navigationItem ,BarButtonItem

    @IBOutlet weak var navTitle: UINavigationItem!
    
    @IBOutlet weak var navBar: UINavigationBar!
    @IBOutlet weak var settingBtn: UIBarButtonItem!

		//設置navigation 背景顏色 爲透明
        navBar.setBackgroundImage(UIImage(), forBarMetrics: UIBarMetrics.Default)
        navBar.shadowImage = UIImage()
        navBar.translucent = true  
		//設置navigation 顯示層爲 綠色
        let greenColor:UIColor = UIColor(red:75/255,green: 163/255,blue: 75/255,alpha:1)
        navBar.layer.backgroundColor=greenColor.CGColor
        //設置 tite 的字體和顏色
        navBar.titleTextAttributes = [NSForegroundColorAttributeName: UIColor.whiteColor(), NSFontAttributeName: UIFont(name:"Helvetica",size:22.0)!]
        
        //設置nav button 爲圖標
        settingBtn.tintColor=UIColor.whiteColor()
        settingBtn.setTitleTextAttributes([NSFontAttributeName:FontAwesomeIcon.getFontAwesome(18)], forState: UIControlState.Normal)
        settingBtn.title=FontAwesomeIcon.getFontICO("fa-cog")
        //設置 SearchBar
        let searchBar:UISearchBar = UISearchBar(frame: CGRectMake(0, 0, 150, 20))
        searchBar.placeholder = "搜索實驗..."
        let rightNavBarButton = UIBarButtonItem(customView:searchBar)
        navTitle.rightBarButtonItem = rightNavBarButton

2.  在swift中使用 FontAwesome 添加 FontAwesome.ttf  和 相應的.swift 文件  

          注意在info.plist 中添加  Fonts provided by application  並添加 item 的值爲 FontAwesome.ttf