Files
kangkang/康康/App/KangkangApp.swift
link2026 b79ae54b7b ```
feat(iOS): 更新MNN后端模型配置优化性能

将MNN主模型从Qwen3.5-4B(~2.64GiB)降级为Qwen3.5-2B(~1.1GiB),因为4B版本
实测运行过慢,影响用户体验。iPhone17+/SME2设备使用2B模型,保留MLX
兜底方案用于模拟器和备用场景,确保AI推理性能和存储效率的平衡。
```
2026-06-09 22:20:07 +08:00

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import SwiftUI
import SwiftData
@main
struct KangkangApp: App {
@State private var lang = LanguageManager.shared
@State private var fontScale = FontScaleManager.shared
init() {
// MLX , entitlement + LLM/VL jetsam OOM
AIRuntime.configureMLXMemory()
}
var sharedModelContainer: ModelContainer = {
let schema = Schema([
Indicator.self,
Report.self,
DiaryEntry.self,
Asset.self,
ChatTurn.self,
Symptom.self,
UserProfile.self,
MetricReminder.self,
CustomMonitorMetric.self,
HealthExport.self,
CustomReminder.self,
])
let config = ModelConfiguration(schema: schema, isStoredInMemoryOnly: false)
// store .completeUnlessOpen (§6),
func makeContainer() throws -> ModelContainer {
let container = try ModelContainer(for: schema, configurations: [config])
KangkangApp.protectStore(at: config.url)
return container
}
do {
return try makeContainer()
} catch {
// Demo schema : SwiftData
// (: @Model ),
// , store -wal/-shm
// App ,()
// VersionedSchema + SchemaMigrationPlan
// : @Model ,
print("⚠️ ModelContainer 创建失败,备份旧 store 后重建: \(error)")
KangkangApp.backupIncompatibleStore(at: config.url)
do {
return try makeContainer()
} catch {
fatalError("Could not create ModelContainer even after store reset: \(error)")
}
}
}()
/// SwiftData store( `-wal`/`-shm`) `.completeUnlessOpen` :
/// , SQLite ,
/// `.complete` /Live Activity 访 store CLAUDE.md §6
/// ( iOS CompleteUntilFirstUserAuthentication,)
private static func protectStore(at storeURL: URL) {
let fm = FileManager.default
for suffix in ["", "-wal", "-shm"] {
let path = storeURL.path + suffix
guard fm.fileExists(atPath: path) else { continue }
try? fm.setAttributes([.protectionKey: FileProtectionType.completeUnlessOpen],
ofItemAtPath: path)
}
}
/// schema store( `-wal` / `-shm`)
/// `Application Support/StoreBackups/<>/`,
/// ,;
private static func backupIncompatibleStore(at storeURL: URL) {
let fm = FileManager.default
let fmt = DateFormatter()
fmt.locale = Locale(identifier: "en_US_POSIX")
fmt.dateFormat = "yyyyMMdd-HHmmss"
let stamp = fmt.string(from: Date())
let backupDir = storeURL.deletingLastPathComponent()
.appendingPathComponent("StoreBackups/\(stamp)", isDirectory: true)
try? fm.createDirectory(at: backupDir, withIntermediateDirectories: true)
// ()
try? fm.setAttributes([.protectionKey: FileProtectionType.completeUnlessOpen],
ofItemAtPath: backupDir.path)
for suffix in ["", "-wal", "-shm"] {
let src = URL(fileURLWithPath: storeURL.path + suffix)
guard fm.fileExists(atPath: src.path) else { continue }
let dst = backupDir.appendingPathComponent(src.lastPathComponent)
do {
try fm.moveItem(at: src, to: dst)
try? fm.setAttributes([.protectionKey: FileProtectionType.completeUnlessOpen],
ofItemAtPath: dst.path)
} catch {
try? fm.removeItem(at: src) // ,
}
}
}
var body: some Scene {
WindowGroup {
AppLockContainer {
RootView()
.environment(\.locale, lang.locale)
// / ,( tjScaled )
.id("\(lang.current.rawValue)-\(fontScale.scale.rawValue)")
}
// ( sand) light:,
// Text/TextField .primary ,()
.preferredColorScheme(.light)
}
.modelContainer(sharedModelContainer)
}
}