android webview execute javascript after page load

How can I validate an email address in JavaScript? Let's see the simple code to display javatpoint.com web page using web view. What does "use strict" do in JavaScript, and what is the reasoning behind it? Oversecured mobile apps scanner provides an automatic solution that helps to detect vulnerabilities in Android and iOS mobile apps. Using the native Javascript this can be achieved, This can also be done inside the interval, Using Jquery I am also using jQuery 3.2.1 along with some other jQuery forks. Are there any events that I can hook onto when my script executes, that will get triggered on page load? Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Which equals operator (== vs ===) should be used in JavaScript comparisons? Download a file with Android, and showing the progress in a ProgressDialog, How to call a method after a delay in Android. Withdrawing a paper after acceptance modulo revisions? Does Chain Lightning deal damage to its original target first? Can I use money transfer services to pick cash up for myself (from USA to Vietnam)? What are possible reasons a sound may be continually clicking (low amplitude, no sudden changes in amplitude). rev2023.4.17.43393. Verified working on Android 4.0.34.0.4 Ice Cream Sandwich (API level 15). For me it does not change anything. 2023 DigitalOcean, LLC. I have loaded my Webpage in Android WebView using webview.loadUrl() and I am trying to inject a Javascript into the WebView using webview.evaluateJavascript(). hi thanks a lot. Still WebView comes with its own set of cons such as its a much more expensive widget to use, in terms of memory consumption than a TextView. Why does my JavaScript code receive a "No 'Access-Control-Allow-Origin' header is present on the requested resource" error, while Postman does not? It's not elegant but it's a simple hack that renders well. Typically, MIME type will be text/html and the encoding will be UTF-8 for ordinary HTML as shown below: Below is the output when the above snippet is added in the MainActivity as shown below: There is also a loadDataWithBaseURL() method. I already tried using an ASyncTask, but there is the possibility that I didn't implemented it well. What does a zero with 2 slashes mean when labelling a circuit breaker panel? To learn more, see our tips on writing great answers. I'm working with an application that has 2 fragments; first has an EditText and second a webview. I tried the AsyncTask method, to preload the page and then "download" it, before loading the data into the WebView but I'm stuck on an IllegalStateException: Target host must not be null, or set in parameters. javascript android webview Share Improve this question Follow How small stars help with planet formation. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. I'm executing an external script, using a