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Android WebAppInterface
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| typealias Listener = () -> Unit | |
| class WebViewActivity : AppCompatActivity() { | |
| override fun onCreate(savedInstanceState: Bundle?) { | |
| super.onCreate(savedInstanceState) | |
| setContentView(R.layout.activity_webview) | |
| setupWebView() | |
| loadWebView("[your-web-url]") | |
| } | |
| private fun setupWebView() { | |
| webView.apply { | |
| addJavascriptInterface(WebAppInterface(onLoginSuccess), "Android") | |
| settings.apply { | |
| javaScriptEnabled = true | |
| domStorageEnabled = true | |
| } | |
| webChromeClient = WebChromeClient() | |
| webViewClient = object : WebViewClient() { | |
| override fun onPageFinished(view: WebView?, url: String?) { | |
| super.onPageFinished(view, url) | |
| view?.loadUrl("javascript:" + | |
| "window.Android.checkContentExist('<html>'" + | |
| " + document.getElementsByTagName('html')[0].innerHTML + " + | |
| "'</html>');") | |
| } | |
| } | |
| } | |
| } | |
| private fun loadWebView(url: String) { | |
| webView.post { | |
| webView.loadUrl(url) | |
| } | |
| } | |
| } | |
| class WebAppInterface(private val listener: Listener?) { | |
| @JavascriptInterface | |
| fun checkContentExist(html: String) { | |
| val frameUrl = Jsoup.parse(html)?.getElementsByTag("frame")?.firstOrNull()?.attr("src") | |
| if (frameUrl?.contains("exptected-string") == true) { | |
| listener?.invoke() | |
| } | |
| } | |
| } |
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