Android webview javascript function not working. Search for jobs related to Android webview javascript function not working or hire on the world's largest freelancing marketplace with 24m+ jobs. I am porting over an iOS app and they are doing the same thing, waiting for page to load, then using Javascript to hide some of the HTML items. The map() method of Array instances creates a new array populated with the results of calling a provided function on every element in the calling array. Jul 5, 2022 · Bug description: In app we are using Webview to access mapkit. . getSettings(). Here's the code that creates the WebView: WebView allows you to bind JavaScript code to Android code through an interface. 4. 107 I'm trying to make an Android version of a relativly simple iOS app that uses a webview, some buttons and then relies on javascript calls to a CMS. This is how I defined the webview. I am using simple webview. postMessage() method safely enables cross-origin communication between Window objects; e. Jul 23, 2025 · Here we have added WebView to our layout file. location. It is not fetching the user name and password, though, indicating that "Android" is not defined. Work with Web View on earlier versions of Android Also you have to wait to load the website and then inject the javascript code. UniWebView is a modern web view component for mobile Unity 3D games. setJavaScriptEnabled (true); in above code and it works smoothly!! hope it helps 294 I am trying to call some javascript functions sitting in an html page running inside an android webview. now we need to load a URL in this WebView, so here we are creating a simple HTML file that would be locally stored in the Assets folder of the Android project. Fully Kiosk uses the web engine of Android Webview . Installation ⚠ Breaking Changes in ver. However, if you’ll just add this statement inside your JavaScript code, you won’t see any output: JavaScript Evaluation Jetpack library JavaScriptEngine provides a way for an application to evaluate JavaScript code without creating a WebView instance. Javascript not working on Android WebView while it was working before updating to target sdk 29 Asked 6 years, 7 months ago Modified 4 years, 8 months ago Viewed 4k times The following is my test code. Android: Uses android. It's free to sign up and bid on jobs. In my application I am using WebView and in that I am using JavaScript alert( ) method but its not working, no pop-up appears. evaluareJavaScript (), in the onPageFinished (WebView view, String url) method and I don't get the same html as I would get from evaluareJavaScript () method Enhance your Android apps with content from external websites, using WebViews - and ensure this content looks good across a range of screen configurations. The last exercise "Run Android Java code from Webpage" show how to call from WebView JavaScript to Android activity. I have tried everything and still doesn't work, please help: I setup my WebView here: public class MainActivity extends ActionBarActivity { private WebView mWebView; private MyWebViewClient When I use it very smilar to webview. Corrected!! just add javascript in your activity using webview. More Information in this FAQ. It can only show the web pages as well as the available Android Webview can. The async function declaration creates a binding of a new async function to a given name. I am successfully able to call an Android function from the html but not the other way around. setJavaScriptEnabled(true); webView. id. NET MAUI WebView (not BlazorWebView) and register JavaScript callbacks to communicate between the code in the web view (which would be your Blazor Server app, which is really just a web app), and the . While `WebView` provides methods like `loadUrl ()` and `evaluateJavascript ()` for this, developers often encounter frustrating issues with `loadUrl ()`, such as unresponsive functions, syntax errors, or timing problems. Dec 26, 2025 · This guide dives deep into the root causes of JavaScript failures in Android WebView and provides actionable fixes, code examples, and preventive measures to resolve issues quickly. Check out the answer I did some weeks ago with code Hide WebView until JavaScript is done. iOS and Mac Catalyst: Uses WKWebView, which is based on the Safari WebKit browser engine. Understanding the interactions between JavaScript and Android WebView can help in resolving these issues effectively. Hi everyone! I have a viewer webPage which contains some css & javascript files as references. Similarly, an outdated Android System WebView can lead to compatibility problems, causing websites to display incorrectly or not function properly within apps. NET MAUI. My problem is that in the page two I can not reference AndroidFunction2. 2 package - Last release 2. That is happening, so evidently the script is running. edit); WebSettings Websettings = index. 2 using webview, In above version it is working fine. By updating WebView, you ensure that your device can handle the latest web technologies and standards, providing a consistent and reliable browsing experience across all your apps. loadUrl("javascript:( Learn how to troubleshoot and resolve JavaScript redirect problems in Android WebView applications with this step-by-step guide. An object that displays interactive web content, such as for an in-app browser. evaluareJavaScript (), in the onPageFinished (WebView view, String url) method and I don't get the same html as I would get from evaluareJavaScript () method Android webview javascript not working on API 18 or higher Asked 10 years, 6 months ago Modified 7 years, 6 months ago Viewed 4k times 0 I am unable to get some javascript to run successfully in the onPageFinished () method of my WebViewClient. href. It's a similar approach to manage the JS and Java using a webview. We use api service many times on android application development and get response errors. 2. play ()), and i used this method to call the functions: mWebView. Before we were injecting full-function code together with its call. Pretty simple what the code tries to do below - from the android app, call a javascript function with a test message, which inturn calls a java function back in the android app that displays test message via toast. This section shows how to embed a Socure Hosted Flow in an Android app using WebView with a minimal, in-app integration. Question / Problem YouTube Player Quality Selection Not Working - setPlaybackQuality Doesn't Change Video Quality Summary The setPlaybackQuality method in the YouTube player library doesn't actually change the video playback quality. The webview work fine until i try custom webviewClient. I have also tried executing addView () before webView. this was before export const get Calling JavaScript functions from Android WebView involves a few steps to set up communication between the WebView and your Android application. g. html But i have issues regarding the browser. I don't use Javascript much but am not sure why it keeps failing to work correctly. loadUrl. Finally you call this in the WebView contents via simple javascript call: The window. webView. The Proxy object enables you to create a proxy for another object, which can intercept and redefine fundamental operations for that object. @luetm not directly, but that's what this feature proposal would make easier. WebView, which is based on the Chromium browser engine. I've read a lot of posts about how to enable JS in an Android webview, but no luck so far. By adding webviewClient it stops processing of javascr 0 I am trying to load an HTML form in a webview which has some callbacks on button clicks which I am trying to handle in javascript handler but are not getting invoked. Here is my html and JavaScript co 4 i am trying to call JS function from android activity it loads the page in webview but couldn't find out the JS function , the function is working very fine in desktop browser Here is the JAVA Code setting almost each and everything for JS index = (WebView) findViewById(R. 17! Read this FAQ before upgrading! ⚠ Get Fully Kiosk Browser app 1. swiss-impulse. getSettings(); This document describes how to get started with WebView, how to bind JavaScript from your web page to client-side code in your Android app, how to handle page navigation, and how to manage windows when using WebView. This process allows your Android app to invoke JavaScript functions defined within the web content loaded into the WebView. I tried it but the javascript code is not called. com/scratch_card_game/index. To do this, we must use the addJavaScriptInterface () method, which is passed the class that provides the interface for JS, and the name that will be used to display the instance in JS (for example, “ AndroidFunction “). Explore solutions for JavaScript functions not triggering in Android WebView, with tips and troubleshooting advice. Check @cdev38399/nativescript-webview-interface 2. NET code running in . loadData (); same errors. loadUrl ("javascript://your javascript goes here"); after webview. 2 at our NPM packages aggregator and search engine. The specific version depends on the Android WebView system component installed on the device. This document shows you how to get started with WebView and how to do some additional things, such as handle page navigation and bind JavaScript from your web page to client-side code in your Android application. The await keyword is permitted within the function body, enabling asynchronous, promise-based behavior to be written in a cleaner style and avoiding the need to explicitly configure promise chains. I inspected the button element and tried some variants of functions unsuccessfully (play, play (), player. addJavascriptInterface(Object, String) for more information about it. Actually, you need both setJavaScriptEnabled () and setWebChromeClient (new WebChromeClient ()) to make the JavaScript work. It is a plugin built on native iOS/Android technology, which helps your users to enjoy web content and interact with your game through the web views. After clicking a button from the HTML, I can successfully get to the Android class WebAppInterface (From the example) and display a "Toast" alert, but trying to callback to the a javacsript function defined in my web-page is not working. Nevermind, I figured out how to use your code, I had to add another parameter "WebView view" to your function. I'm facing a strange issue, My JavaScript function is not getting called on <a></a> onClick method. Consider start doing a simple test when the page loads, and later add it inside the javascript click function. 0. Here will show how to call in reverse direction: Call JavaScript inside WebView from Android activity, with parameter passed. Starting from API level Build. This is the same engine used by the Safari browser on iOS and macOS. Summary Click events due to code in mobile browser / webview is considered unsafe and ignored. location in place of window. But I'm stuck at a pretty early point of development: The webview doesn't function with javascript. Ajax not working in webview android (Uncaught TypeError: undefined is not a function) Asked 8 years, 8 months ago Modified 4 years ago Viewed 2k times I am declaring a single function for playing a video, but you can do whatever you want. Using loadUrl to load the HTML works but it will remove the possibility to alter the HTML before it is loaded. setJavaScriptEnabled (true); then it won't work. Description I am encountering an issue with loading JavaScript in a WebView within a . For applications requiring non-interactive JavaScript evaluation, using the JavaScriptEngine library has the following advantages: This article explains how to use the . Search for jobs related to Android webview javascript function not working or hire on the world's largest freelancing marketplace with 25m+ jobs. Please you ask, this function is only getting called inside the onPageFinished () method of the webview client. setJavaScriptEnabled (true); in above code and it works smoothly!! hope it helps The problem i cant find the function that play/stop the music. webkit. If you will use only webSetting. See WebView. Where i have given link to login page of my web application. JELLY_BEAN_MR1 and above, only methods explicitly marked with this annotation are available to the Javascript code. If you are a startup that is looking to give the exact convenience in Android app development and encountering terms like “WebView” along the way such as If you’re wondering: What WebView in Android is all […]</p> This article addresses the common issue of JavaScript functions not being triggered when running in an Android WebView. E. This is a nice tool for logging and basic debugging. I've managed to create a WebView with a custom WebViewClient - this The following is my test code. Here's a step-by-step guide: Dec 27, 2019 · There is a way to bridge JavaScript methods called in WebView and your Java/Kotlin code. Specifically, the errors observed are related to the JavaScript file and the WebChat comp When I use it very smilar to webview. Now to import it into my blazor-server project, after create new project, make some changes to add my given web-page functionality into my blazor server… Annotation that allows exposing methods to JavaScript. NET MAUI WebView to display remote web pages, local HTML files, and HTML strings. Anchor tag click event is not working in android jellybean 4. As a result we need to call a JS function inside webview many times. This blog will guide you through: - Setting up `WebView` to enable JavaScript interaction. html) While searching for an answer in google, it seems that I'm not the only one stuck with a problem that seems impossible to solve. 1. I'm making an app which runs in android webview. NET MAUI application. But it's OK on sumsang i9100 with Android 4. I'm trying to make the javascript work in android for this page: http://test. loadDataWithBaseUrl () then the javascript functions and variables will be invalidated, thus you won't be able to access them with webview. loadUrl ("javascript: ") I am not so familiar with JavaScript and web, i need some help. This is the code of the web-page: (Android. VERSION_CODES. 60 on Google Play or Get the latest Beta version Access WebView’s JavaScript Console Messages in Native Android Code If you’ll be working with a WebView in Android, chances are that you’ll want to read its console messages. Also, in case of mobile webview, we use document. 57 and 1. Let’s consider you have the following HTML code within the shown page: The JavaScript function The filter() method of Array instances creates a shallow copy of a portion of a given array, filtered down to just the elements from the given array that pass the test implemented by the provided function. I'm testing this on Nexus 7 with Android 4. Integrating web content to your games was never easier. in my manifest file I have added <uses-permission android:name=" Ok the problem is that if you use webview. <p>As a smartphone user, we all need our web browsing experience to be simple with zero or minimal congestion. getSettings (). , between a page and a pop-up that it spawned, or between a page and an iframe embedded within it. For now you could use a regular . Now, I want to write something about fixing javascript requiring errors. klqr, qrwhl, qj1pcr, hb7w, 25iscy, re0dd, f6vjev, hchm, ry47, ldrztq,