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Questions - mvvm

How to Keep state of my View Model persistent across a user session in SwiftUI (MVVM)?

I am trying to implement an IOS App following the MVVM architecture. Everything works well when I don't need my state to be persistent as I move through views and navigate back. However, when a user n...
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Khalil Hajji

mvvm

swiftui

swiftui-navigationview

swiftui-environment

Votes: 0

Answers: 1

Latest Answer

You can instantiate your viewmodel in the App struct (or somewhere else, like the first view a user encounters) then pass on that same instance of the viewmodel to deeper views. A common way to do thi...
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joforsell

Timer within EnvironmentObject view model not updating the View

I have a view model, that has multiple child view models. I am fairly new to watchOS, SwiftUI and Combine - taking this opportunity to learn. I have a watchUI where it has Play Button (View) - SetTim...
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Michael

mvvm

swiftui

combine

observableobject

environmentobject

Votes: 0

Answers: 1

Latest Answer

Managed to resolve the issue with help of @lorem ipsum and his feedback. As per his comment, the problem lied with the fact that it is more than likely not working because you are chaining ObservableO...
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Michael

how do I to add catel to a prism 8 wpf app

Has anyone tried integrating catel with prism 8. Orc.Prism supported prism 5 and 6 and could bem modified to support prism 7 but now the Bootstrapper has been removed from prism 8. How can I modify my...
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johnka

c#

wpf

mvvm

prism

catel

Votes: 0

Answers: 0

Why is a wrapper necessary for a LiveData value?

I was looking at the JetSurvey project (Android Jetpack Compose sample project) and noticed that they created a class to wrap the LiveData value in their ViewModel class. Here is the class I'm talking...
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ctkim

android

kotlin

mvvm

observable

android-livedata

Votes: 0

Answers: 1

Latest Answer

Suppose your LiveData observer in a Fragment navigates to a second Fragment. The user rotates the screen so the first Fragment instance is destroyed. When they back out of the second Fragment, a new i...
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Tenfour04

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