核心Spotlight用户信息始终为空 [英] Core Spotlight Userinfo is always empty

问题描述

我正在使用CoreSpotlight api和NSUserActivity api的组合来索引应用程序内容.一切正常，直到我点击搜索结果.在continueUserActivity方法中与userActivity一起传递的userInfo仅包含一项，即kCSSearchableItemActivityIdentifier.我的其他自定义键是nil.

I am using a combination of CoreSpotlight api and NSUserActivity api to index app content. Everything goes well until I tap a search result. The userInfo passed with userActivity in continueUserActivity method contains only one item i.e kCSSearchableItemActivityIdentifier. My other custom keys are nil.

这是我的索引项目代码.

Here is my code for indexing items..

class MyTestViewController:UIViewController{
     viewDidLoad(){
        searchHandler = SearchHandler()
        searchHandler.index(items)
     }
 }

 class  SearchHandler{
         var activity: NSUserActivity!

         func index(items:[Item]){
            for item in items{
         let attributeSet = getSearchItemAttribute(item)
                if let attributeSet =  attributeSet{
                    let searchableItem = CSSearchableItem(uniqueIdentifier: item.uniqueId, domainIdentifier:itemType.groupId(), attributeSet: attributeSet)
                    searchableItem.expirationDate = item.expirationDate
                    addToSpotlight([searchableItem])
                }

            activity = NSUserActivity(activityType: searchPrivacy.activity())
            activity.delegate = delegate

            //meta data
            activity.title = item.title

            var userInfoDic = [NSObject:AnyObject]()
            userInfoDic["indexItemType"] = itemType.rawValue
            userInfoDic["address"] = item.title
            activity.userInfo = userInfoDic

            if item.expirationDate != nil { activity.expirationDate = item.expirationDate! }
            if item.keywords != nil { activity.keywords = item.keywords! }
            activity.contentAttributeSet = attributeSet

            //eligibility
            activity.eligibleForHandoff = false
            activity.eligibleForSearch = true
            activity.eligibleForPublicIndexing = true
            activity.requiredUserInfoKeys = Set(["indexItemType","address"])

            activity.becomeCurrent()
            }
 }

 private  func getSearchItemAttribute(item:Item) ->CSSearchableItemAttributeSet?{
    if item.contentType != nil { // add an entry to core spot light
        let attributeSet = CSSearchableItemAttributeSet(itemContentType: item.contentType!)
        attributeSet.relatedUniqueIdentifier = item.uniqueId
        HALog.i("item.uniqueId= \(item.uniqueId)")
        attributeSet.title = item.title
        attributeSet.thumbnailData = item.thumbnailData
        attributeSet.thumbnailURL = item.thumbnailUrl
        attributeSet.rating = item.ratings
        attributeSet.ratingDescription = item.ratingDescription
        attributeSet.contentDescription = item.contentDescription
        return attributeSet
    }
    return nil
}

private  func addToSpotlight(searchableItems:[CSSearchableItem]) {

    CSSearchableIndex.defaultSearchableIndex().indexSearchableItems(searchableItems) { (error) -> Void in
        if let error = error {
            HALog.e("Deindexing error: \(error.localizedDescription)")
        } else {
            HALog.i("Search item successfully indexed!")
        }
    }

   }
}

每当我尝试访问userInfo中的indexItemType或地址键时，它始终为零.

Whenever I try to access indexItemType or address keys in userInfo its always nil.

我已经尝试了以下线程的所有解决方案:

I have tried all the solutions from these threads:

1. iOS 9-NSUserActivity userinfo属性显示为空

http://helpprogramming. xyz/question/31328032/ios-9-nsuseractivity-userinfo-property-showing-null

以上均未解决我的问题. 我目前在iOS 9上使用Xcode 7.

None of the above solved my problem. I am currently using Xcode 7 with iOS 9.

推荐答案

我在这里遇到了同样的问题，而且我搜索了很多对我不起作用的答案... 幸运的是，我在 ios-9-tutorial-series-中找到了解决方案search-api

I had the same issue here, and i searched so many answers not working for me... fortunately i got my solution in ios-9-tutorial-series-search-api

我建议您阅读以上所有内容.我将为您提供两种替代解决方案:

I recommend you read all the content above. I will give you two alternative solutions:

1. 使用NSUserActivity而不是CSSearchableItem:完成数据设置后，调用userActivity.becomeCurrent，则可以在聚光灯下找到您的数据(还有两件事:我没有iOS 9设备，因此仅在iOS 10设备上进行了测试，我上面提到的文章说NSUserActivity is limited to one activity per navigation point，但我没有这类问题...)

1. use NSUserActivity instead of CSSearchableItem: when you done your data setting, call userActivity.becomeCurrent, then your can found your data in spotlight(just two more things: I don't have a iOS 9 device, so only tested in iOS 10 Device, and the article I mentioned above said NSUserActivity is limited to one activity per navigation point, but I don't have such kind issue...)

使用CSSearchableItem，将uniqueIdentifier设置为包含您的自定义userInfo的JSON字符串.

use CSSearchableItem, set the uniqueIdentifier to a JSON string that contains your custom userInfo.

注意:请勿为CSSearchableItem编制索引并同时调用userActivity.becomeCurrent，否则您将获得两个关注的结果.其中一个是com.apple.corespotlightitem，另一个是您的自定义activityType

NOTE: Do not index a CSSearchableItem and call userActivity.becomeCurrent both, otherwise you will got two spotlight results. One of them is com.apple.corespotlightitem, other one is your custom activityType

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