在iOS 11中，如何使核心数据在核心聚光灯下可搜索 [英] In iOS 11, how to make core data searchable in core spotlight
问题描述
正如WWDC所提到的，iOS 11应该支持对Core Data进行索引，以便可以通过Spotlight对其进行搜索。这是WWDC演示文稿：
As mentioned at WWDC, iOS 11 should have support to index Core Data so that it is searchable via Spotlight. This is the WWDC presentation:
但是，在观看视频并查看文档之后，我仍然不知道如何设置我的核心数据对象，以便可以从手机的聚光灯搜索中搜索它们。
However, after watching the video and looking at docs, I still have no idea how to setup my core data objects so they are searchable from the phones spotlight search.
我猜主要问题是：
1。）您实际上是如何设置某项属性的对象类型是可搜索的。
1.) How do you actually set which attributes of a certain object type are searchable.
2。）如何设置NSCoreDataCoreSpotlightDelegate并获取它来处理数据？看来NSPersistentStore具有属性
2.) How do you setup a NSCoreDataCoreSpotlightDelegate and get it to process the data? It looks like NSPersistentStore has a property
var coreSpotlightExporter：NSCoreDataCoreSpotlightDelegate
var coreSpotlightExporter: NSCoreDataCoreSpotlightDelegate
但是它只是准备就绪的:(
but it's readyonly :(
我找不到任何可以清楚地解释这些内容的东西。谢谢！
I couldn't find anything that explained this stuff clearly. Thanks!
推荐答案
您不直接设置 coreSpotlightExporter ，而是设置 NSCoreDataCoreSpotlightExporter 选项与您的出口代表：
You do not set coreSpotlightExporter directly. Instead, set the NSCoreDataCoreSpotlightExporter option with your export delegate:
container.persistentStoreDescriptions.forEach {
$0.setOption(MyCoreDataCoreSpotlightDelegate(forStoreWith:$0, model: container.managedObjectModel), forKey:NSCoreDataCoreSpotlightExporter)
}
我添加了此代码，然后调用 loadPersistentStores（completionHandler：）。
I added this code before calling loadPersistentStores(completionHandler:).
要设置属性和实体，请为 NSAttributeDescription 和 NSEntityDescriptio n 或在UI中的 .xcdatamodeld 中。
To set attributes and entities, you update the appropriate properties for NSAttributeDescription and NSEntityDescription or in your .xcdatamodeld in the UI.
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