ErrorView | custom view that displays an image title | Android library

I am very very new to swift development, and I'm trying to follow multiple different online tutorials to try and build a sign in page. Unfortunately all of the different views and models haven't slotted together well, and I'm having some issues.

The code below seems to work, apart from the ErrorView displaying. This code doesn't compile when the variables alert and error are @Published variable. It gives me the error ``Failed to produce diagnostics for expression". When I change them both to @State variables they don't update the view.

I have a SwiftUI project but it shows a big white box with the back bar button.

Does anyone know how to fix it (Xcode version 12.5)?

Image:

My code:

For this website, I have two login tabs as seen in the image below and for the selected tab it shows an icon next to it, but to make it more visible that this tab is selected I want to add some sorta box-shadow or something, but for now, it shows the box-shadow for both of the tabs and I just can't get my head around how to make it only show for the selected Tab.

This is the code that I have - I tried to add v-if statement, but it won't work as I already have v-for so If there is any way how to make this work I would be really happy if you could help me out here. Thank you in advance!

For this website I have two login tabs as seen in the image below, and right now it's hard to understand which login tab is selected.

I'm trying to display an icon next to the selected tab, but currently it shows the icon for both tabs. So overall I'm trying to show the icon only for the tab that is selected and if I change the tab, it hides it from the previously selected tab and shows it to the current one.

This is the whole code that I have -

I am trying to build a new tab function but I am not too sure how I can accomplish this. I am having trouble setting a new or previous WKWebView. And also how do I display an errorView if the url is invalid?

This is what I have so far.

EDIT: I wasn't too sure how to initialize or how to create a invalidurl view. This is kind of like whats going on through my mind

I have been having issue with hilt injection as I am relatively new to the concept of DI, Here is the problem I have a class which manages my app session(Shared preference) and I want to inject that class to my use case(Activity/Fragment), now when I do this it throws this error

"lateinit property sessionManager has not been initialized"

code for SessionManager.kt

I had a setup using @State in my SwiftUI view and going all my operations in the View (loading API etc) however when attempting to restructure this away from using @ViewBuilder and @State and using a @ObservedObject ViewModel, I lost the ability to dynamically change my view based on the @State variables

My code is now

I am trying to pass data between two activities using Intents, but at the moment when I try to get the data from the previous activity it just gives me a value of 0 when I print it on the view.

I've searched for ages, but everything I find doesn't exist or is deprecated :(

FirstActivity:

I would like to include Bugsnag to report unhandled errors with enough details to fix them as fast as possible.

I would like to know if it's possible for Bugsnag to customise ErrorBoundary, to redirect or show something less ugly to the user?

But the following code raise a big dilemma, the shows up after a second like the following screenshot:

and then is overridden by the browser error message: