Dimillian / Dimillian/IceCubesApp
Bug/Discussion: ViewModels are initialised multiple times?
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- Dominant language
- Swift
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- 7.1k
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Description
I'm not sure if this is a bug tbh but I've noticed that @Observable objects are being initialised multiple times.
So this @State private var viewModel = TimelineViewModel() for example would call TimelineViewModel.init multiple times.
Here is a forum post I could find about this "issue" https://forums.swift.org/t/observable-init-called-multiple-times-by-state-different-behavior-to-stateobject/70811/8
Apple also suggests initialising objects inside .task which would leave us with optionals everywhere...
https://developer.apple.com/documentation/swiftui/state#Store-observable-objects
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the @State private var viewModel = TimelineViewModel() pattern and reproduce the repeated initialization behavior using the linked Swift forum discussion and Apple State documentation. Determine whether the behavior is expected and what concrete change or guidance is warranted; done means the initialization lifecycle and resolution are clearly established.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- ios, swift
- Domain
- mobile
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 30/100