从容器应用程序和扩展程序访问核心数据
Accessing Core Data from both container app and extension
我正在开发应用和共享扩展并尝试使用核心数据。但是,当我在扩展中插入项目时,这些项目仅在扩展中可见,但在容器应用程序中不可见(例如,我从应用程序执行 NSFetchRequest 并获得零项目,但在应用程序中我得到 >0)。
我正在使用以下代码获取持久容器:
lazy var persistentContainer: NSPersistentContainer = {
let container = NSPersistentContainer(name: "appname")
container.loadPersistentStores(completionHandler: { (storeDescription, error) in
if let error = error {
fatalError("Unresolved error \(error)")
}
})
return container
}()
此外,appname.xcdatamodeld 的目标成员已针对应用程序和扩展程序进行检查。
如何正确共享容器应用和扩展的核心数据?
lazy var persistentContainer: NSPersistentContainer = {
/*
The persistent container for the application. This implementation
creates and returns a container, having loaded the store for the
application to it. This property is optional since there are legitimate
error conditions that could cause the creation of the store to fail.
*/
let container = NSPersistentContainer(name: "xx")
let appName: String = "xx"
var persistentStoreDescriptions: NSPersistentStoreDescription
let storeUrl = FileManager.default.containerURL(forSecurityApplicationGroupIdentifier: "group.com.xx.xx.container")!.appendingPathComponent("xx.sqlite")
let description = NSPersistentStoreDescription()
description.shouldInferMappingModelAutomatically = true
description.shouldMigrateStoreAutomatically = true
description.url = storeUrl
container.persistentStoreDescriptions = [NSPersistentStoreDescription(url: FileManager.default.containerURL(forSecurityApplicationGroupIdentifier: "group.com.xxx.xx.container")!.appendingPathComponent("xx.sqlite"))]
container.loadPersistentStores(completionHandler: { (storeDescription, error) in
if let error = error as NSError? {
fatalError("Unresolved error \(error), \(error.userInfo)")
}
})
return container
}()
我正在开发应用和共享扩展并尝试使用核心数据。但是,当我在扩展中插入项目时,这些项目仅在扩展中可见,但在容器应用程序中不可见(例如,我从应用程序执行 NSFetchRequest 并获得零项目,但在应用程序中我得到 >0)。 我正在使用以下代码获取持久容器:
lazy var persistentContainer: NSPersistentContainer = {
let container = NSPersistentContainer(name: "appname")
container.loadPersistentStores(completionHandler: { (storeDescription, error) in
if let error = error {
fatalError("Unresolved error \(error)")
}
})
return container
}()
此外,appname.xcdatamodeld 的目标成员已针对应用程序和扩展程序进行检查。 如何正确共享容器应用和扩展的核心数据?
lazy var persistentContainer: NSPersistentContainer = {
/*
The persistent container for the application. This implementation
creates and returns a container, having loaded the store for the
application to it. This property is optional since there are legitimate
error conditions that could cause the creation of the store to fail.
*/
let container = NSPersistentContainer(name: "xx")
let appName: String = "xx"
var persistentStoreDescriptions: NSPersistentStoreDescription
let storeUrl = FileManager.default.containerURL(forSecurityApplicationGroupIdentifier: "group.com.xx.xx.container")!.appendingPathComponent("xx.sqlite")
let description = NSPersistentStoreDescription()
description.shouldInferMappingModelAutomatically = true
description.shouldMigrateStoreAutomatically = true
description.url = storeUrl
container.persistentStoreDescriptions = [NSPersistentStoreDescription(url: FileManager.default.containerURL(forSecurityApplicationGroupIdentifier: "group.com.xxx.xx.container")!.appendingPathComponent("xx.sqlite"))]
container.loadPersistentStores(completionHandler: { (storeDescription, error) in
if let error = error as NSError? {
fatalError("Unresolved error \(error), \(error.userInfo)")
}
})
return container
}()