Android webview on document ready callback

Use onPageCommitVisible replace onPageFinished.

 @Override public void onPageStarted(WebView view, String url, Bitmap favicon) { super.onPageStarted(view, url, favicon); prDialog = new ProgressDialog(MainActivity.this); prDialog.setMessage("Please wait ..."); prDialog.show(); } @Override public void onPageCommitVisible(WebView view, String url) { super.onPageCommitVisible(view, url); if(prDialog != null) prDialog.dismiss(); } 

Javascript has event that use to detect completed building the DOM tree called DOMContentLoaded.

JavaScript Page Load Events

You can inject Javascript with addJavascriptInterface() and let it call the function in Native side that defined with JavaScriptInterface annotation, then execute the DOMContentLoaded with evaluateJavascript like

webView.apply { settings.javaScriptEnabled = true // Inject Javascript addJavascriptInterface( DomContentLoadedInterface({ /* Do something */ }), DomContentLoadedInterface.KEY ) webViewClient = object : WebViewClient() { override fun onLoadResource(view: WebView?, url: String?) { super.onLoadResource(view, url) // Execute Javascript evaluateJavascript(DomContentLoadedInterface.SCRIPT) } } loadUrl(URL) } 

where DomContentLoadedInterface is

class DomContentLoadedInterface(private val action: () -> Unit) { @JavascriptInterface fun execute() { action() } companion object { internal const val KEY = "DomContentLoaded" internal const val SCRIPT = "javascript:document.addEventListener('DOMContentLoaded',function(){DomContentLoaded.execute()})" } } 

Note: evaluateJavascript will work in onLoadResource (https://stackoverflow.com/a/58932747/9896693) and after onPageFinished

Here my example.For page

boolean isPageLoaded;
webView.setWebViewClient(new WebViewClient() {

 public boolean shouldOverrideUrlLoading(WebView view, String url) { isPageLoaded=true; return isPageLoaded; } public void onPageFinished(WebView view, String url) { if(!isPageLoaded){} } }); 

My examples for url loading finished.

if(!isPageLoaded){}

if url has ok process finished.