Uno: PancakeView + XamarinForms issue

[ysmoradi]

Current behavior

The left side is uwp and right side is wasm, these are not identical )-:

Expected behavior

These should be identical

How to reproduce it (as minimally and precisely as possible)

RpnCalculator.zip

I've downloaded RpnCalculator, then I updated all nuget packages and added PanCakeView

Note that you've to add

<AssetTargetFallback>uap10.0.16299</AssetTargetFallback>

to wasm csproj

Environment

Nuget Package:

Package Version(s):

    <PackageReference Include="Uno.UI" Version="2.1.0-dev.272" />
    <PackageReference Include="Uno.Wasm.Bootstrap" Version="1.0.8" />
    <PackageReference Include="Uno.Xamarin.Forms.Platform" Version="4.3.0-uno.141" />
    <PackageReference Include="Xamarin.Forms.PancakeView" Version="1.3.6" />
    <DotNetCliToolReference Include="Uno.Wasm.Bootstrap.Cli" Version="1.0.10" />

Affected platform(s):

• [ ] iOS
• [ ] Android
• [ ] WebAssembly
• [X] WebAssembly renderers for Xamarin.Forms
• [ ] Windows
• [ ] Build tasks
• [ ] Solution Templates

Visual Studio:

• [ ] 2017 (version: )
• [X] 2019 (version: )
• [ ] for Mac (version: )

Relevant plugins:

• [ ] Resharper (version: )

Anything else we need to know?

It works if you copy renderer code into the project instead of installing the package into the project. Note that I've add Xamarin.Forms.PancakeView to LinkerDescription.xml, but it wasn't enough )-:

[ysmoradi]

It was my fault, it's working )-: So sorry

[ysmoradi]

For anyone who is interested, take a look at https://github.com/ysmoradi/UnoXamWasm

GitHub

ysmoradi/UnoXamWasm

Xamarin forms pancake sample running on web assembly! - ysmoradi/UnoXamWasm

[jeromelaban]

@ysmoradi very nice!! What did not work in the first place, is it something we need to adjust ?

[ysmoradi]

I invested a time to understand how Uno works and I should say, it's fantastic.
There are some issues with installing 3rd party nuget packages although. Pancake itself works if I copy it's renderer code to the project, but I was unable to achieve the same by installing nuget package. I tried to install some other nuget packages such as syncfusion components. The fact that wasm project is a .net standard 2.0 project, prevents installing and using those packages. I'm almost sure they work if I copy their renderer codes, but it's not possible in the real world. I'm thinking about how to solve it and I know dot net sdk has its own limitations. For now, I closed this issue, because there is nothing wrong with Uno and Pancake, but there are more important issues which needs to be discussed about toolings.
I'll open 2 new issues tomorrow (another one is related to gradiant feature of pancake)
I think, at the end, it should be possible to pirt a lot of existing xamarin forms project to web thanks to uno ✌️

[jeromelaban]

Many thanks !