UINavigationItem基礎(chǔ)

//導(dǎo)航條 -> 屬性導(dǎo)航控制器
        //navigationItem -> 讓導(dǎo)航控制器管理的視圖控制器
        
        //創(chuàng)建window
        self.window = UIWindow.init(frame: UIScreen.mainScreen().bounds)
        self.window?.backgroundColor = UIColor.whiteColor()
        
        let navC = YTNavigationController(rootViewController: OneViewController())
        self.window?.rootViewController = navC
        
        
        //將狀態(tài)欄變成白色(默認(rèn)是黑色)
        //1.在info.plist文件中去添加一個鍵值對 -> View controller-based status bar appearance:NO
        //2.通過應(yīng)用程序?qū)ο蟾淖儬顟B(tài)欄的樣式
        //a.拿到當(dāng)前應(yīng)用程序?qū)ο?        let app = UIApplication.sharedApplication()
        //b.設(shè)置狀態(tài)欄的樣式
        //LightContent -> 白色
        app.statusBarStyle = .LightContent

   //定制導(dǎo)航條
        //1.設(shè)置背景顏色
        self.navigationBar.barTintColor = UIColor.blackColor()
        
        //2.設(shè)置填充顏色
        self.navigationBar.tintColor = UIColor.whiteColor()

 func navigationItemSetting() {
        
        //1.定制rightItem
        //a.通過其他視圖來創(chuàng)建一個UIBarButtonItem對象
        let btn = UIButton.init(frame: CGRectMake(0, 0, 50, 30))
        btn.setTitle("注冊", forState: .Normal)
        btn.setBackgroundImage(UIImage.init(named: "buttonbar_action.png"), forState: .Normal)
        btn.setTitleColor(UIColor.greenColor(), forState: .Normal)
        btn.addTarget(self, action: "btnAction", forControlEvents: .TouchDown)
    
        let item1 = UIBarButtonItem.init(customView: btn)
        
        
        //b.通過一張圖片創(chuàng)建一個UIBarButtonItem對象
        //參數(shù)1:圖片
        //參數(shù)2:item的風(fēng)格
        //參數(shù)3:調(diào)用方法的對象
        //參數(shù)4:當(dāng)當(dāng)前item對應(yīng)的按鈕被點擊后會調(diào)用的方法
        let item2 = UIBarButtonItem.init(image: UIImage.init(named: "itemImage")?.imageWithRenderingMode(.AlwaysOriginal), style: .Plain, target: self, action: "itemAction:")
        
        //c.通過文字去創(chuàng)建一個UIBarButtonItem對象
        let item3 = UIBarButtonItem.init(title: "注冊", style: .Plain, target: self, action: "itemAction:")
        
        //d.通過系統(tǒng)樣式去創(chuàng)建UIBarButtonItem對象
        //參數(shù)1:指定的系統(tǒng)樣式
        let item4 = UIBarButtonItem.init(barButtonSystemItem: .Add, target: self, action: "itemAction:")
        

        //2.設(shè)置navigationBar右邊的顯示
        //a.在右邊顯示一個視圖
        self.navigationItem.rightBarButtonItem = item4
        //b.在右邊顯示顯示多個視圖
        //self.navigationItem.rightBarButtonItems = [item4,item3]
        
        //3.設(shè)置navigationBar左邊的顯示
        self.navigationItem.leftBarButtonItem = item2
        //self.navigationItem.leftBarButtonItems = [item1, item2]
        
        //4.設(shè)置navigationBar中間的顯示
        //a.顯示純文字
        self.title = "登錄"
        
        //b.通過一個label顯示文字
        let label = UILabel.init(frame: CGRectMake(0, 0, 100, 30))
        label.text = "登錄"
        label.textColor = UIColor.yellowColor()
        label.textAlignment = .Center
        
        //c.創(chuàng)建中間顯示的分段選中器
        let segement = UISegmentedControl.init(items: ["海賊","火影"])
        segement.frame = CGRectMake(0, 0, 100, 40)
        segement.selectedSegmentIndex = 0
        
        
        //設(shè)置中間視圖
        self.navigationItem.titleView = segement

        //設(shè)置背景顏色
        self.view.backgroundColor = UIColor.orangeColor()

        //設(shè)置rightItem
        let item = UIBarButtonItem.init(barButtonSystemItem: .Cancel, target: self, action: "itemAction")
        self.navigationItem.rightBarButtonItem = item
        
        //1.替換系統(tǒng)自帶的返回按鈕 -> 設(shè)置leftBarButtonItem屬性
        let item2 = UIBarButtonItem.init(barButtonSystemItem: .Done, target: self, action: "itemAction")
        
        //self.navigationItem.leftBarButtonItem = item2
        
        //2.隱藏系統(tǒng)自帶的返回按鈕
        self.navigationItem.hidesBackButton = true

toolBar

//將狀態(tài)欄變成白色(默認(rèn)是黑色)
        //1.在info.plist文件中去添加一個鍵值對 -> View controller-based status bar appearance:NO
        //2.通過應(yīng)用程序?qū)ο蟾淖儬顟B(tài)欄的樣式
        //a.拿到當(dāng)前應(yīng)用程序?qū)ο?        let app = UIApplication.sharedApplication()
        //b.設(shè)置狀態(tài)欄的樣式
        //LightContent -> 白色
        app.statusBarStyle = .LightContent

 //1.定制toolBar(高度是44)
        //toolBar屬于導(dǎo)航控制器，默認(rèn)是隱藏的
        //a.讓toolBar顯示出來
        self.toolbarHidden = false
        
        //b.設(shè)置是否有透明度(默認(rèn)true->有透明度)
        self.toolbar.translucent = false
        
        //c.設(shè)置背景顏色
        self.toolbar.barTintColor = UIColor.yellowColor()
        //d.設(shè)置填充顏色
        self.toolbar.tintColor = UIColor.redColor()
        

        //2.定制導(dǎo)航條
        //a.設(shè)置背景顏色
        self.navigationBar.barTintColor = UIColor.blackColor()
        
        //b.設(shè)置填充顏色
        self.navigationBar.tintColor = UIColor.whiteColor()

class OneViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()
        
        self.view.backgroundColor = UIColor.greenColor()

        //1.定制navigationItem
        self.navigationItemSetting()
        
        //2.定制toolBarItem
        self.toolBarItemSetting()
    }

}

//MARK: - 定制toolBarItem
extension OneViewController{

    func toolBarItemSetting() {
        
        //創(chuàng)建toolBar上顯示的按鈕對應(yīng)的item
        let item1 = UIBarButtonItem.init(barButtonSystemItem: .Camera, target: self, action: "toolBarAction")
        let item2 = UIBarButtonItem.init(barButtonSystemItem: .Add, target: self, action: "toolBarAction")
        let item3 = UIBarButtonItem.init(barButtonSystemItem: .Edit, target: self, action: "toolBarAction")
        let item4 = UIBarButtonItem.init(barButtonSystemItem: .Refresh, target: self, action: "toolBarAction")
        
        
        //a.FlexibleSpace(相當(dāng)于空格，用來設(shè)置每個item之間的間距，間距是自動計算的)
        let space1 = UIBarButtonItem.init(barButtonSystemItem: .FlexibleSpace, target: nil, action: "")
        //b.FixedSpace(相當(dāng)于空格，用來設(shè)置每個item之間的間距,間距需要手動設(shè)置)
        let space2 = UIBarButtonItem.init(barButtonSystemItem: .FixedSpace, target: nil, action: "")
        //設(shè)置間距
        space2.width = 20
        
        
        //將item添加到toolBar上
        self.toolbarItems = [space2,item1,space2,item2,space2,item3,space2,item4,space2]
        
    }
    
    func toolBarAction() {
        
        print("toolBar被點擊")
    }
}

//MARK: - 定制navigationItem
extension OneViewController{
    
    func navigationItemSetting() {
        
        //1.定制rightItem
        //a.通過其他視圖來創(chuàng)建一個UIBarButtonItem對象
        let btn = UIButton.init(frame: CGRectMake(0, 0, 50, 30))
        btn.setTitle("注冊", forState: .Normal)
        btn.setBackgroundImage(UIImage.init(named: "buttonbar_action.png"), forState: .Normal)
        btn.setTitleColor(UIColor.greenColor(), forState: .Normal)
        btn.addTarget(self, action: "btnAction", forControlEvents: .TouchDown)
    
        let item1 = UIBarButtonItem.init(customView: btn)
        
        
        //b.通過一張圖片創(chuàng)建一個UIBarButtonItem對象
        //參數(shù)1:圖片
        //參數(shù)2:item的風(fēng)格
        //參數(shù)3:調(diào)用方法的對象
        //參數(shù)4:當(dāng)當(dāng)前item對應(yīng)的按鈕被點擊后會調(diào)用的方法
        let item2 = UIBarButtonItem.init(image: UIImage.init(named: "itemImage")?.imageWithRenderingMode(.AlwaysOriginal), style: .Plain, target: self, action: "itemAction:")
        
        //c.通過文字去創(chuàng)建一個UIBarButtonItem對象
        let item3 = UIBarButtonItem.init(title: "注冊", style: .Plain, target: self, action: "itemAction:")
        
        //d.通過系統(tǒng)樣式去創(chuàng)建UIBarButtonItem對象
        //參數(shù)1:指定的系統(tǒng)樣式
        let item4 = UIBarButtonItem.init(barButtonSystemItem: .Add, target: self, action: "itemAction:")
        

        //2.設(shè)置navigationBar右邊的顯示
        //a.在右邊顯示一個視圖
        self.navigationItem.rightBarButtonItem = item4
        //b.在右邊顯示顯示多個視圖
        //self.navigationItem.rightBarButtonItems = [item4,item3]
        
        //3.設(shè)置navigationBar左邊的顯示
        self.navigationItem.leftBarButtonItem = item2
        //self.navigationItem.leftBarButtonItems = [item1, item2]
        
        //4.設(shè)置navigationBar中間的顯示
        //a.顯示純文字
        self.title = "登錄"
        
        //b.通過一個label顯示文字
        let label = UILabel.init(frame: CGRectMake(0, 0, 100, 30))
        label.text = "登錄"
        label.textColor = UIColor.yellowColor()
        label.textAlignment = .Center
        
        //c.創(chuàng)建中間顯示的分段選中器
        let segement = UISegmentedControl.init(items: ["海賊","火影"])
        segement.frame = CGRectMake(0, 0, 100, 40)
        segement.selectedSegmentIndex = 0
        
        
        //設(shè)置中間視圖
        self.navigationItem.titleView = segement
        
        
        
    }
    
    func itemAction(item:UIBarButtonItem) {
        
        print("item被點擊")
        //跳轉(zhuǎn)到下一個界面
        let two = TwoViewController()
        self.navigationController?.pushViewController(two, animated: true)
        
    }
    
    //按鈕點擊
    func btnAction() {
        
        print("跳轉(zhuǎn)到注冊頁")
    }
    

    
}

/設(shè)置背景顏色
        self.view.backgroundColor = UIColor.orangeColor()

        //設(shè)置rightItem
        let item = UIBarButtonItem.init(barButtonSystemItem: .Cancel, target: self, action: "itemAction")
        self.navigationItem.rightBarButtonItem = item
        
        //1.替換系統(tǒng)自帶的返回按鈕 -> 設(shè)置leftBarButtonItem屬性
        let item2 = UIBarButtonItem.init(barButtonSystemItem: .Done, target: self, action: "itemAction")
        
        //self.navigationItem.leftBarButtonItem = item2
        
        //2.隱藏系統(tǒng)自帶的返回按鈕
        self.navigationItem.hidesBackButton = true

        //定制navigationBar
        //1.設(shè)置背景顏色
        self.navigationBar.barTintColor = UIColor.blackColor()
        
        //2.設(shè)置中間的文字顏色
        //NSForegroundColorAttributeName 文字顏色的key
        self.navigationBar.titleTextAttributes = [NSForegroundColorAttributeName:UIColor.whiteColor()]
        
        //3.設(shè)置填充顏色
        self.navigationBar.tintColor = UIColor.whiteColor()