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All the code you need for js/native bridge w/ html apps for android and ios (manifest and interface builder files excluded)
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| <html> | |
| <button id='button'>Say Hi</button> | |
| <script> | |
| button = document.getElementById('button') | |
| button.onclick = function(){ | |
| // if ios | |
| // window.webkit.messageHandlers["scriptHandler"].postMessage("Hi") | |
| // | |
| // if android | |
| // AndroidInterface.sayHi() | |
| } | |
| function sayHi(){ | |
| document.write("Hi") | |
| } | |
| </script> | |
| </html> |
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| package com.package.name | |
| import android.support.v7.app.AppCompatActivity | |
| import android.os.Bundle | |
| import android.webkit.WebView | |
| import android.webkit.JavascriptInterface | |
| import android.content.Context | |
| class WebViewJsInterface(private val context: Context, private val webView: WebView) { | |
| @JavascriptInterface | |
| fun sayHi() { | |
| webView.post { webView.loadUrl("javascript:sayHi()") } | |
| } | |
| } | |
| class MainActivity : AppCompatActivity() { | |
| override fun onCreate(savedInstanceState: Bundle?) { | |
| super.onCreate(savedInstanceState) | |
| setContentView(R.layout.activity_main) | |
| val webView = findViewById(R.id.webview) as WebView | |
| webView?.settings?.javaScriptEnabled = true | |
| webView.loadUrl("file:///android_asset/www/index.html") | |
| webView.addJavascriptInterface( WebViewJsInterface(this, webView), "AndroidInterface"); | |
| } | |
| } |
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| import UIKit | |
| import WebKit | |
| class ViewController: UIViewController, WKUIDelegate, WKScriptMessageHandler { | |
| var webView: WKWebView! | |
| override func loadView() { | |
| let webConfiguration = WKWebViewConfiguration() | |
| webView = WKWebView(frame: .zero, configuration: webConfiguration) | |
| webView.uiDelegate = self | |
| webView?.configuration.userContentController.add(self, name: "scriptHandler") | |
| view = webView | |
| } | |
| override func viewDidLoad() { | |
| super.viewDidLoad() | |
| if let url = Bundle.main.url(forResource: "www/index", withExtension: "html") { | |
| webView.load(URLRequest(url: url)) | |
| } | |
| } | |
| public func userContentController(_ userContentController: WKUserContentController, didReceive message: WKScriptMessage) { | |
| webView.evaluateJavaScript("javascript:sayHi()") | |
| } | |
| } |
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