SwiftJS是用swift写的，用于演示如何和JavaScript进行交互的Demo.

Features

• JavaScript call Native App
• Native App call JavaScript

Requirements

• iOS 8.0+ / Mac OS X 10.9+ / tvOS 9.0+ / watchOS 2.0+
• Xcode 7.2+

Communication

• 如果您需要帮助，请与我联系hengchengfei@sina.com

Usage

JavaScript call Native App

let conf = WKWebViewConfiguration()
let userScript = WKUserScript(source: "redHeader()", injectionTime: .AtDocumentEnd, forMainFrameOnly: true)
conf.userContentController.addUserScript(userScript)
webView = WKWebView(frame: self.view.frame, configuration: conf)

Native App call JavaScript

1.首先添加一个WKScriptMessageHandler代理

class ViewController: UIViewController, WKScriptMessageHandler

2.实现«userContentController»的代理方法

func userContentController(userContentController: WKUserContentController!, didReceiveScriptMessage message: WKScriptMessage!) {
    if(message.name == "callbackHandler") {
        println("JavaScript is sending a message \(message.body)")
    }
}

3.WebView启动对JavaScript的监听事件

contentController.addScriptMessageHandler(
    self,
    name: "callbackHandler" 
)

4.H5中，添加如下JavaScript

webkit.messageHandlers.callbackHandler.postMessage("I Love you");