WebView not work on TV. Black screen

[DIMANRUS]

Hello. I created Xamarin.Forms Tizen project. But I tried it in NUI, ElmSharp and other templates, the same thing everywhere. I tested it on a mobile emulator, everything works there, but why doesn't it work on TV, just a black screen?

https://github.com/Samsung/Tizen.NET/assets/41239551/73b786c2-55f3-4acf-8241-b2bd93619fa9

https://github.com/Samsung/Tizen.NET/assets/41239551/97586358-db73-4deb-9d90-3b695a3270e8

[JoonghyunCho]

Can you share the test environment like TV binary info?

[DIMANRUS]

Can you share the test environment like TV binary info?

Samsung Smart Monitor M5 EU. Tizen 6.5. I somehow started once and every other time, but after that the WebView did not open at all. I've tried both nui and xf, elmSharp, it's just a black screen everywhere

[shyunMin]

@DIMANRUS Sorry, I'm late to find the person in charge of WebView It seems that there is an issue in Webview regardless of UI F/W. Would you please check one more thing whether the NUI App without Webview works properly on your target. (We don't have Samsung Smart Monitor M5, so we couldn't reproduce this issue) If it is confirmed that there is no UI problem, I'll report this issue to the web team.

[DIMANRUS]

Only the WebView control has a black screen, but not the application. I think I got you right. I can send a project.

[DIMANRUS]

I will also try to reset the monitor to factory settings and create the project again and I will write to you. But I don't have a chance to check on the emulator yet, since Hyper-V is enabled.

[DIMANRUS]

I reset the monitor to factory settings. The situation remained the same. I tried Xamarin.Forms (but it was written about it in the documentation that WebView is not supported there at all, but I definitely opened it once before), after I tried NUI with TargetGramework tizen50 and tizen90, WebView with a black screen. After ElmSharp, but the same thing. Everywhere I added the privilege in the manifest (http://tizen.org/privilege/internet ) and tried to open different sites, both http and https.

[shyunMin]

Hello, @DIMANRUS You don't need to check again on emulator, I just want to check that there's no problem in the other UI Controls such as Label, Button on target(M5). I think that it can be tested using simple application created by template, I'd like to suggest to use NUI template.

[DIMANRUS]

Hello, @DIMANRUS You don't need to check again on emulator, I just want to check that there's no problem in the other UI Controls such as Label, Button on target(M5). I think that it can be tested using simple application created by template, I'd like to suggest to use NUI template.

The problem is only with the WebView, the rest of the elements are displayed and working

[DIMANRUS]

I found the reason. If you set the api version 1 or 10 in the manifest for ui-application, then WebView works. But does not work for ElmSharp template.

-- NUI App --

https://1drv.ms/v/s!AhxXL2syaMMQluB6zLs6kbJPDeJMYQ?e=HErxrI

-- Xamarin.Forms App --

https://1drv.ms/v/s!AhxXL2syaMMQluB7Ke8klhkOChQK_Q?e=jZppXf

[shyunMin]

Thank you for sharing the result :) Since the backend of Xamarin.Forms is changed to NUI from Elmsharp, we are recommending to use NUI or MAUI instead of Elmsharp. And about api-version, please check below TizenFX API documents, the required version of NUI.BaseComponents.WebView is 9. https://samsung.github.io/TizenFX/API9/api/Tizen.NUI.BaseComponents.WebView.html

[DIMANRUS]

Thanks for the reply. So Api 9 is Tizen 6.5? And WebView won't work on a lower version of Tizen? Does MAUI only work with Tizen 7.0 and above?

[shyunMin]

Yes, you can check the platform version mapped to api level here - https://github.com/samsung/tizenfx#branches, And Tizen supports .NET 6 including MAUI since 7.0.

[DIMANRUS]

And in order for me to use weView, which will work on Tizen 4.0 and higher, do I need to use the old project template? If we take Xamarin.Forms