swiftui-core

原文涵盖的主题

• SwiftUI Core
• Agent Workflow (MANDATORY)
• Overview
• When to Use
• Why SwiftUI Core
• Key Concepts
• Views & Modifiers
• Navigation

Covers SwiftUI fundamentals shared across all Apple platforms: composable views and modifiers, navigation (NavigationStack for stack-based flows, NavigationSplitView for multi-column layouts), data persistence with SwiftData (@Model, replacing Core Data for most cases), state management (@State for local, @Observable for shared, @Environment for injection), Liquid Glass styling, and App Intents for Siri/Shortcuts integration. References cover views/modifiers, navigation, SwiftData, state management, Liquid Glass across platforms, and App Intents in depth, plus Apple Human Interface Guidelines (HIG) rules with source URLs: accessibility (Dynamic Type to AX5, VoiceOver, contrast, hit targets, Reduce Motion/Transparency), right-to-left, modality/sheets/alerts/onboarding, system surfaces (widgets, Live Activities, notifications, App Shortcuts/Siri/snippets), and iPhone Duo. Visual specs come from the design-ios handoff when one exists; this skill implements and verifies them. Best practices: extract subviews once a view body mixes responsibilities or stops reading at a glance, compose with ViewBuilder and modifiers, always include #Preview, use system colors (custom colors need light,

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