Blazor + Xamarin

Ángel Rubén Valdeolmos Carmona 611

I have a web application in blazor wasm, I would like to reuse blazor wasm login and registration in my xamarin application, is there a way to use my 2 blazor components in xamarin?

Leon Lu (Shanghai Wicresoft Co,.Ltd.) 80,526 Reputation points Microsoft External Staff

2021-06-14T07:56:28.45+00:00

I research it, but I cannot find a way to reuse blazor wasm login and registration. You can take a feedback in the github thread:https://github.com/dotnet/MobileBlazorBindings
Ángel Rubén Valdeolmos Carmona 611 Reputation points

2021-06-14T09:44:27.19+00:00

I opened this:
https://github.com/dotnet/MobileBlazorBindings/issues/376
Harrison of The North 196 Reputation points

2021-06-15T12:57:07.27+00:00

Yup there is, however the remedy is quite basic.

Your existing blazor page runs in a browser, so you can host this page in a WebView in the Xamarin app, and in the logged-in and logged-out views, run a Javascript function that passes whatever javascript objects that you might want to create in those contexts in the blazor page, to the HTML Bridge and into the Xamarin application.

Basically, just set up both sides of the HTML Bridge so that you can call the other side - from the page to the Xamarin, from the Xamarin to the page.

This does, of course, require that you add a Javascript library to your blazor app that calls the WASM, but it's just a simple HTML Bridge issue that you adapt for Blazor.

The javascript in the Blazor page should also detect the Xamarin environment so that it knows the bridge is there, and if it is not, to ignore it.
Ángel Rubén Valdeolmos Carmona 611 Reputation points

2021-06-15T15:56:36.76+00:00

I have thought about the WebView, in the registry I go to the URL of the registry and in the login to the URL of the login, the problem is that with the WebView the entire web blazor WASM is brought and it requires a long time until it loads the URL in the WebView, I have not tried with LazyLoad from blazor and to see how it looks on the mobile.
Harrison of The North 196 Reputation points

2021-06-16T08:35:26.05+00:00

It might be quicker to write an api and have a dedicated controller for this!
Ángel Rubén Valdeolmos Carmona 611 Reputation points

2021-06-16T09:36:31.263+00:00

I have an api, but creating a form of about 30 fields on multiple screens with validations in xamarin is very cumbersome, that's why I wanted to take advantage of blazor.

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Blazor + Xamarin

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