Flickering WebView

Description

I have been using the webview for a while, it was working perfectly fine, but after a while it started flickering. I expected to disappear since it appeared out of nowhere and the site I was trying to load was under construction, but that doesn’t seem to be the case.

Steps to Reproduce

1. Add a webview
2. Add a website that doesn’t end with “.nl” (that worked perfectly fine for me, but mabye that’s the case for servers that are in your country)
3. after a while it starts acting weird (for me it took one or two months before it started flickering, so it isn’t really easy to reproduce)

Version with bug

7.0 (current)

Last version that worked well

The last version that got released in September

Affected platforms

Android

Affected platform versions

idk

Did you find any workaround?

I haven’t found a workaround, I noticed that this bug isn’t happening to all sites though

Relevant log output

there is no output, just a flickering webview

[vhugogarcia]

Thanks @Mielesgames for sharing the small sample reproducing the issue.

After some local testing I found out that the flickering occurs when there is not set HeightRequest and WidthRequest. The following code shows some local tests I did to reproduce the issue:

<!-- Fixed Height & Width :: WORKS OK (No Flickering) -->
        <WebView x:Name="WebsiteViewFixedSize"
                 HeightRequest="300"
                 WidthRequest="350"/>

       <!-- Fixed Width Only :: FAILED -->
        <WebView x:Name="WebsiteViewPartialSize"
                 VerticalOptions="FillAndExpand"
                 WidthRequest="350"/>

         <!-- Dynamic Size :: FAILED -->
        <WebView x:Name="WebsiteViewFullSize"
                 VerticalOptions="FillAndExpand"
                 HorizontalOptions="FillAndExpand"/>

What makes this bug interesting if that only fails with the following URL: https://www.r-go-tools.com , others URLs load just fine I even tried to load random websites and they do not show the flickering issue.

I’m not sure if this is a bug in MAUI or the website from that particular domain. If this is a bug maybe @jsuarezruiz can provide more insights about it.

@Mielesgames as a temporary workaround I recommend you to set a fixed height and width to the WebView. You can use the MAUI Essentials in the constructor of the page to get the Display dimensions for height and width and then set those values to the webview control.

[Mielesgames]

Here’s a small repo https://github.com/Mielesgames/TestApp/tree/ef71617da2559bfad7e5633f7598696c4aac238f