A wrapper library for iOS apps that provides easy to use functions for briding the communication between the native runtime and javascript runtime hosted in a WKWebView. The library wraps the functionality provided by WKUserContentController and embeds a javascript library that exposes promise style functions.
In Swift, create a BridgeCommander instance and start adding commands. Use send function to provide result back or error to pass back an error result.
let commander = BridgeCommander(webView)
commander.add("echo") { command in
command.send(args: "You said: \(command.args)")
}In JavaScript, invoke this command as
BridgeCommander.call("echo", "Hello!")
.then(function(result) { console.log(result); })
.catch(function(error) { console.log(error); });That's it!
The simplest way would be to add BridgeCommander.swift and BridgeCommander.js to your xcode project. Make sure to update the javascript file reference inside the code if you rename the files or place them in separate folders. Do not reference the js file in your web app, it will be automatically available everywhere.
This is a clean and fast way to use this as a library in your project. If you're unfamiliar with Carthage, read Ray's article on using it