iOS应用内跳转到手机淘宝天猫

info.plist 中需要添加（实测没填写的话不会去判断是否安装了此APP）

代码如下：

    需要跳转的按钮点击事件：
    func copyStrKey(_ sender: UIButton) {

        let pboard = UIPasteboard.general
        pboard.string = self.productModel["search_key"].stringValue
       
        var titleStr = ""
        var jumpStr = ""

        if sender.tag == 0 {
            titleStr = "关键词复制成功，是否跳转到手机淘宝APP？"
            jumpStr = ("taobao://s.taobao.com/search?q=" + self.productModel["search_key"].stringValue).addingPercentEncoding(withAllowedCharacters: .urlQueryAllowed)!
        } else if sender.tag == 1 {
            titleStr = "淘口令复制成功，是否跳转到手机淘宝APP？"
            jumpStr = "taobao://item.taobao.com/item.htm"
        }
       
        let alertCtr = UIAlertController.init(title: titleStr, message: nil, preferredStyle: UIAlertControllerStyle.alert)
        alertCtr.addAction(UIAlertAction.init(title: "取消", style: UIAlertActionStyle.cancel, handler: nil))
        alertCtr.addAction(UIAlertAction.init(title: "确定", style: UIAlertActionStyle.default, handler: { (action) in
           
            if let url = URL.init(string: jumpStr) {
               
                if UIApplication.shared.canOpenURL(url) == true {
                    UIApplication.shared.openURL(url)
                } else {
                   
                    let alertC = UIAlertController.init(title: "您未安装手机淘宝APP,是否前往AppStore下载安装？", message: nil, preferredStyle: UIAlertControllerStyle.alert)
                   
                    alertC.addAction(UIAlertAction.init(title: "取消", style: UIAlertActionStyle.cancel, handler: nil))
                    alertC.addAction(UIAlertAction.init(title: "确定", style: UIAlertActionStyle.default, handler: { (action: UIAlertAction) in
                       
                        let AppStoreVC = UIViewController.init()
                        AppStoreVC.modalTransitionStyle = UIModalTransitionStyle.coverVertical
                       
                        let webView = UIWebView.init(frame: AppStoreVC.view.bounds)
                        let request = NSURLRequest.init(url: URL.init(string: "itms-apps://itunes.apple.com/cn/app/tao-bao-sui-shi-sui-xiang/id387682726?mt=8")!) //AppStore手机淘宝地址
                        webView.loadRequest(request as URLRequest)
                        AppStoreVC.view.addSubview(webView)
                       
                        self.present(AppStoreVC, animated: true, completion: {
                            AppStoreVC.dismiss(animated: true, completion: nil)
                        })
                    }))
                    self.present(alertC, animated: true, completion: nil)
                   
                }
            }
        }))
        self.present(alertCtr, animated: true, completion: nil)
    }

说明：

URL 不能包含 ASCII 字符集中, 不是必须这样的字符进行转义的字符。
使用 stringByAddingPercentEncodingWithAllowedCharacters
字符集 URLQueryAllowedCharacterSet

跳转天猫：

1、首页
tmall://tmallclient/
2、详情（需要id）
tmall://page.tm/itemDetail?id=556107550107
3、搜索列表
tmall://page.tm/search?q=1234