# SwiftJS

**Repository Path**: chengfeisoft/SwiftJS

## Basic Information

- **Project Name**: SwiftJS
- **Description**: Swift和JavaScript交互
- **Primary Language**: Swift
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 51
- **Forks**: 15
- **Created**: 2016-02-01
- **Last Updated**: 2025-05-06

## Categories & Tags

**Categories**: ios-modules

**Tags**: None

## README

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

![效果](http://git.oschina.net/uploads/images/2016/0202/100206_b228d0f2_302364.gif "在这里输入图片标题")

## Features

- [x] JavaScript call Native App
- [x] 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

### Native App 调用 H5中的JavaScript

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

### JavaScript 调用 Native App
 1.首先添加一个WKScriptMessageHandler代理
```swift
class ViewController: UIViewController, WKScriptMessageHandler
```

 2.实现«userContentController»的代理方法
```swift
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
```swift
contentController.addScriptMessageHandler(
    self,
    name: "callbackHandler" 
)
```

 4.H5中，添加如下JavaScript
```swift
webkit.messageHandlers.callbackHandler.postMessage("I Love you");
```