Name: Swiftui Ui Patterns
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Author: dimillian

SwiftUI UI Patterns

Quick start

Choose a track based on your goal:

Existing project

Identify the feature or screen and the primary interaction model (list, detail, editor, settings, tabbed).
Find a nearby example in the repo with
```
rg "TabView\("
```
or similar, then read the closest SwiftUI view.
Apply local conventions: prefer SwiftUI-native state, keep state local when possible, and use environment injection for shared dependencies.
Choose the relevant component reference from
```
references/components-index.md
```
and follow its guidance.
Build the view with small, focused subviews and SwiftUI-native data flow.

New project scaffolding

Start with
```
references/app-scaffolding-wiring.md
```
to wire TabView + NavigationStack + sheets.
Add a minimal
```
AppTab
```
and
```
RouterPath
```
based on the provided skeletons.
Choose the next component reference based on the UI you need first (TabView, NavigationStack, Sheets).
Expand the route and sheet enums as new screens are added.

General rules to follow

Use modern SwiftUI state (
```
@State
```
,
```
@Binding
```
,
```
@Observable
```
,
```
@Environment
```
) and avoid unnecessary view models.
Prefer composition; keep views small and focused.
Use async/await with
```
.task
```
and explicit loading/error states.
Maintain existing legacy patterns only when editing legacy files.
Follow the project's formatter and style guide.
Sheets: Prefer
```
.sheet(item:)
```
over
```
.sheet(isPresented:)
```
when state represents a selected model. Avoid
```
if let
```
inside a sheet body. Sheets should own their actions and call
```
dismiss()
```
internally instead of forwarding
```
onCancel
```
/
```
onConfirm
```
closures.

Workflow for a new SwiftUI view

Define the view's state and its ownership location.
Identify dependencies to inject via
```
@Environment
```
.
Sketch the view hierarchy and extract repeated parts into subviews.
Implement async loading with
```
.task
```
and explicit state enum if needed.
Add accessibility labels or identifiers when the UI is interactive.
Validate with a build and update usage callsites if needed.

Component references

Use

references/components-index.md

as the entry point. Each component reference should include:

Intent and best-fit scenarios.
Minimal usage pattern with local conventions.
Pitfalls and performance notes.
Paths to existing examples in the current repo.

Sheet patterns

Item-driven sheet (preferred)

@State private var selectedItem: Item?
.sheet(item: $selectedItem) { item in
EditItemSheet(item: item)
}

Sheet owns its actions

struct EditItemSheet: View {
    @Environment(\.dismiss) private var dismiss
    @Environment(Store.self) private var store
let item: Item
@State private var isSaving = false

var body: some View {
    VStack {
        Button(isSaving ? &quot;Saving…&quot; : &quot;Save&quot;) {
            Task { await save() }
        }
    }
}

private func save() async {
    isSaving = true
    await store.save(item)
    dismiss()
}

}

Adding a new component reference

Create
```
references/<component>.md
```
.
Keep it short and actionable; link to concrete files in the current repo.
Update
```
references/components-index.md
```
with the new entry.

Swiftui Ui Patterns

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SwiftUI UI Patterns

Quick start

Existing project

New project scaffolding

General rules to follow

Workflow for a new SwiftUI view

Component references

Sheet patterns

Item-driven sheet (preferred)

Sheet owns its actions

Adding a new component reference

Quick Start

Manual Installation

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