Dynamically Adjusting WebView Height Based on Content in ListView Item

Question

How can I dynamically adjust the height of a WebView within a ListView item based on the content it displays? I am working on a Microsoft Maui application that has a ListView containing WebView elements, and these WebViews display dynamic HTML content obtained from a data source.

Since the HTML content varies in length for each ListView item, setting a fixed height for the WebViews is not feasible. I need assistance implementing a solution that calculates the height of the WebView based on the rendered HTML content, ensuring that all content is fully visible without the need for scrolling within the WebView.

I appreciate any insights and recommendations you may have. Thank you for your assistance!

Answer 1

this is not a recommend approach (ListView of web views) as you can quickly run into memory issues. rather you shovel have one webview, and implement the list in html.

there are many caveats in resizing a webview to its content. html may have css that changes the layout based one size, so you can get into complex resizing issues. also if the html references images, you wait until they are loaded to do the resize. the typical approach is to use javascript and attach to the unload() event (you will need to use a breakout timer as the load() may fail to fire on hanging image requests). after the event fires, javascript can calc the size and send a message to the hosting app.:

https://learn.microsoft.com/en-us/microsoft-edge/webview2/how-to/communicate-btwn-web-native