1.跳轉(zhuǎn)到另一個(gè)程序的主界面

• 每個(gè)程序都該有一個(gè)對(duì)應(yīng)的Scheme,以確定對(duì)應(yīng)的url

  
  
  Snip20160816_2.png

• 一個(gè)程序要跳轉(zhuǎn)到(打開(kāi))另外一個(gè)程序,需要將另外一個(gè)程序的Scheme添加到自己的應(yīng)用程序白名單中(在info.plist中配置:LSApplicationQueriesSchemes,類(lèi)型為數(shù)組,在數(shù)組中添加相應(yīng)的Scheme)->ios9.0開(kāi)始

  
  
  Snip20160816_3.png
• 跳轉(zhuǎn)代碼

extension ViewController {
    
    @IBAction func jumpToXinWen(sender: AnyObject) {
        openURL("xinWen://")
        
    }
    private func openURL (urlString : String) {
        let url = NSURL(string: urlString)!
        if UIApplication.sharedApplication().canOpenURL(url) {
            UIApplication.sharedApplication().openURL(url)
        }
        
    }
}

2.跳轉(zhuǎn)到另一個(gè)程序的指定界面

• 完成上面程序間跳轉(zhuǎn)的相應(yīng)設(shè)置
• 實(shí)現(xiàn)跳轉(zhuǎn)代碼(與跳轉(zhuǎn)到主頁(yè)相比,url多了參數(shù),?前面參數(shù)是目標(biāo)程序想要跳轉(zhuǎn)界面的segu標(biāo)簽,?后面是當(dāng)前程序的scheme)

  // MARK: - 跳轉(zhuǎn)微信朋友圈
    @IBAction func jumpToWeChatTimeLine(sender: AnyObject) {
        openURL("WeChat://TimeLine?xinWen")
        
    }
   // MARK: - 跳轉(zhuǎn)微信好友
    @IBAction func jumpToWeChatSession(sender: AnyObject) {
        openURL("WeChat://Session?xinWen")
    
    }
    private func openURL (urlString : String) {
        let url = NSURL(string: urlString)!
        if UIApplication.sharedApplication().canOpenURL(url) {
            UIApplication.sharedApplication().openURL(url)
        }
       

• 在目標(biāo)程序AppDelegate中監(jiān)聽(tīng)用來(lái)跳轉(zhuǎn)的相應(yīng)信息,根據(jù)這些信息讓目標(biāo)程序自己實(shí)現(xiàn)頁(yè)面切換

extension AppDelegate {
    //監(jiān)聽(tīng)當(dāng)前程序被其他程序通過(guò)什么樣的Url打開(kāi)
    func application(application: UIApplication, openURL url: NSURL, sourceApplication: String?, annotation: AnyObject) -> Bool {
        //根據(jù)url跳轉(zhuǎn)對(duì)應(yīng)頁(yè)面
        //1.url轉(zhuǎn)化成字符串
        let urlString = url.absoluteString
        //2.獲取首頁(yè)控制器
        let rootVc = application.keyWindow?.rootViewController
        let mainVc = rootVc?.childViewControllers[0] as! ViewController
          //將url傳遞給mianVc
        mainVc.urlString = urlString
        //3.根據(jù)字符串內(nèi)容完成對(duì)應(yīng)跳轉(zhuǎn)
        if urlString.containsString("Session") {//跳轉(zhuǎn)好友
            mainVc.performSegueWithIdentifier("Session", sender: nil)
        }else if urlString.containsString("TimeLine") {//跳轉(zhuǎn)朋友圈
            mainVc.performSegueWithIdentifier("TimeLine", sender: nil)
        }
        return true
    }
}

3.如何從目標(biāo)程序的非主頁(yè)界面回到當(dāng)前(跳轉(zhuǎn)前)程序呢?

思路: 只要在目標(biāo)程序的非主頁(yè)界面知道跳轉(zhuǎn)前的程序的URL即可直接跳轉(zhuǎn),所以,這里的關(guān)鍵是如何將跳轉(zhuǎn)前的程序的URL傳遞到目標(biāo)程序的非主頁(yè)界面.

• 在目標(biāo)控制器APPDelegate中能獲取到用來(lái)跳轉(zhuǎn)的URl信息的方法中將url傳遞給mianVC(事先定義好接收數(shù)據(jù)的屬性),如上面代碼所示.
• 在mianVc 中將url傳遞給需要切換的控制器(事先定義好接收數(shù)據(jù)的屬性)

    //切換界面,需要來(lái)到該方法.能夠拿到切換前后的控制器
    override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
        
        if segue.identifier == "Session" {
            let sessionVc = segue.destinationViewController as! SessionViewController
            //傳遞數(shù)據(jù)
            sessionVc.urlString = urlString
        }
    }
}

• 在目標(biāo)控制器中根據(jù)url信息,獲取跳轉(zhuǎn)前控制器的scheme,從而得到跳轉(zhuǎn)回去的url.

class SessionViewController: UIViewController {
    
    //接收數(shù)據(jù)
 var urlString = ""
    override func viewDidLoad() {
        super.viewDidLoad()

        navigationItem.leftBarButtonItem = UIBarButtonItem(title: "退回跳前應(yīng)用", style: .Plain, target: self, action: #selector(backToStartApp))
        
    }

}
extension SessionViewController {
    func backToStartApp() {
        //分割Url,獲取跳轉(zhuǎn)前的程序的scheme
    
        let scheme = urlString.componentsSeparatedByString("?")[1]
      print(scheme)
        //拼接字符串
        let backString = "\(scheme)://"
        //打開(kāi)url
        openURL(backString)
    }
    
    
    private func openURL (urlString : String) {
        let url = NSURL(string: urlString)!
        if UIApplication.sharedApplication().canOpenURL(url) {
            UIApplication.sharedApplication().openURL(url)
        }
        
    }

}