JS在Swift中调用函数

问题描述：

我知道如何从JS向本地IOS swift app发送消息：

I know how to send message from JS to native IOS swift app:

func userContentController(userContentController: WKUserContentController!, didReceiveScriptMessage message: WKScriptMessage!) {

        println("JavaScript is sending a message \(message.body)")

}

和JS：

webkit.messageHandlers.callbackHandler.postMessage("Hello from JavaScript");

我的问题：是否可以直接调用本机应用程序中的函数，而不是接收消息我的示例代码。

My question: is it possible to directly call a function in the native app rather then receiving the message in my example code.

我想在JS中使用类似的东西：

say i want in the JS to use something like:

webkit.messageHandlers.someFunctionName()

我问的原因是在Android中它是如何工作的

The reason i am asking is that In Android thats how it works

答

WKWebView仅支持原始消息传递接口。你必须将它包装在JS和native之间的复杂交互中。

WKWebView supports only the raw message passing interface. You have to wrap it for complex interactions between JS and native.

我创建了一个名为 XWebView ，它基于WKWebView的原始消息传递提供语言绑定样式的API。它是用Swift编写的。

I created a project named XWebView which offers language binding styled API based on the raw message passing of WKWebView. It's written in Swift.

例如，你可以在Swift中编写一个插件：

For example, you can write a plugin in Swift:

class Plugin : NSObject {
    func someFunctionName() {
        doSomeThing()
    }
}

在加载HTML之前将插件实例展示给JavaScript：

Expose an instance of the plugin to JavaScript before loading HTML:

let webView = WKWebView(frame: frame, configuration: WKWebViewConfiguration())
webView.loadPlugin(Plugin(), namespace: "foo")

从JavaScript调用函数：

Call the function from JavaScript:

window.foo.someFunctionName()

这真的很容易和直截了当。有关详细信息，请查看项目页面。

It's really easy and straightforward. For more details, please check the project's page.

JS在Swift中调用函数

相关推荐