文档 · iOS 集成
7. 本地偏好设置（PreferencesManager）
底层使用 NSUserDefaults 存储。提供了两个并行的类，方法接口完全相同：PreferencesManager 和 AppsKitSDKPreferencesManager。两者均可使用；请选择其中一个并保持一致，不要混用两个类进行读写。
swift
// Booleans, Ints, Strings, Float, Long all live under the same "addInPreferences" family.
// These look unusual but are the real generated parameter labels — Swift doesn't support
// overloading purely by parameter type, so each overload gets a distinct label:
PreferencesManager.shared.addInPreferences(key: "onboarding_done", value: true) // Bool
PreferencesManager.shared.addInPreferences(key: "launch_count", value_: 5) // Int? (KotlinInt)
PreferencesManager.shared.addInPreferences(key: "user_name", value__: "Talha") // String?
// ...or use the explicitly-named variants instead, which read more clearly:
PreferencesManager.shared.addInPreferencesAsLong(key: "last_sync_time", value: Int64(Date().timeIntervalSince1970))
PreferencesManager.shared.addInPreferencesAsFloat(key: "scroll_position", value: 12.5)
PreferencesManager.shared.addInPreferencesAsString(key: "user_name", value: "Talha")
PreferencesManager.shared.getStringPreferences(key: "user_name", defaultValue: "")
PreferencesManager.shared.getIntegerPreferences(key: "launch_count", defaultValue: 0)
PreferencesManager.shared.getBooleanPreferences(key: "onboarding_done", defaultValue: false)
PreferencesManager.shared.getLongPreferences(key: "last_sync_time", defaultValue: 0)
PreferencesManager.shared.getFloatPreferences(key: "scroll_position", defaultValue: 0)
// Remove a single key
PreferencesManager.shared.flushSavedCache(key: "user_name")
// Custom serializable object as JSON
PreferencesManager.shared.getCustomPreference(key: "user_profile", serializer: UserProfile.companion.serializer(), defaultJson: nil)AKS 自身的内部标志（如 REMOVE_ADS 等）也使用同一存储空间。请为自定义键使用独立的命名空间，以避免键名冲突。