CoreSpotlight索引 - 圖像加載

我使用CoreSpolight框架將值分配給CSSearchableItem。我想優化圖像加載。CoreSpotlight索引 - 圖像加載

func setupSearchableContent(moviesInfo:NSMutableArray) 
{ 
    if #available(iOS 9.0, *) 
    { 
     var searchableItems = [CSSearchableItem]() 

     for i in 0...(moviesInfo.count - 1) 
     { 

      let searchableItemAttributeSet = CSSearchableItemAttributeSet(itemContentType: kUTTypeText as String) 

      // Set the title 
      searchableItemAttributeSet.title = (moviesInfo[i] as! ICFAssetObject).title! 

      // Movie Image 
      if let tempPosterImage = (moviesInfo[i] as! ICFAssetObject).portraitImage() 
      { 
       searchableItemAttributeSet.thumbnailData = getImageFromURL(tempPosterImage) //imageData 
      } 

      // Set the Description 
      searchableItemAttributeSet.contentDescription = (moviesInfo[i] as! ICFAssetObject).description! 

      //Set the Link and Slug 
      let values = NSString(format: "%@||%@", (moviesInfo[i] as! ICFAssetObject).link!,(moviesInfo[i] as! ICFAssetObject).slug!) 

      let searchableItem = CSSearchableItem(uniqueIdentifier:values as String ,domainIdentifier: "taimur_assets", attributeSet: searchableItemAttributeSet) 

      searchableItem.expirationDate = NSDate.distantFuture() 
      searchableItems.append(searchableItem) 

      CSSearchableIndex.defaultSearchableIndex().indexSearchableItems([searchableItem]) 
      { 
       (error: NSError?) -> Void in 

       if let error = error 
       { 
        print("Indexing error: \(error.localizedDescription)") 
       } 
       else 
       { 
        print("Search item successfully indexed!") 
       } 
      } 
     } 
    } 
    else 
    { 
     // Fallback on earlier versions 
    } 
} 
func getImageFromURL(var fileURL:String) -> NSData 
{ 
    fileURL = NSString(format: "%@/180x180", fileURL) as String 
    let data:NSData = NSData(contentsOfURL: NSURL(string: fileURL)!)! 
    return data 
}

它需要大量的時間和應用程序被吊下來，而圖像下載。

thumbnailURL不起作用。圖像未分配

當我嘗試在後臺下載它時。它不分配圖像到CSSearchableIndex和圖像不顯示

let priority = DISPATCH_QUEUE_PRIORITY_DEFAULT 
dispatch_async(dispatch_get_global_queue(priority, 0)) 
{ 
     let data:NSData = self.getImageFromURL(movie.Image) //imageData 
     dispatch_async(dispatch_get_main_queue()) 
     { 
      searchableItemAttributeSet.thumbnailData = data 
     } 
}

來源

2016-03-01 Taimur Ajmal

這裏我們去吧！問題修正

let priority = DISPATCH_QUEUE_PRIORITY_BACKGROUND 
dispatch_async(dispatch_get_global_queue(priority, 0)) 
{ 
     let data:NSData = self.getImageFromURL(movie.Image) //imageData 
     dispatch_async(dispatch_get_main_queue()) 
     { 
      searchableItemAttributeSet.thumbnailData = data 
     } 
}

來源

2016-03-02 06:01:46

CoreSpotlight索引 - 圖像加載

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