私は今少し立ち往生しています。まず、私のコードは次のとおりです。
import UIKit
import CoreData
class ViewController: UIViewController {
var eTitles : [String] = []
var jTitles : [String] = []
var pCategories : [String] = []
var imgPaths : [String] = []
override func viewDidLoad() {
super.viewDidLoad()
let url = NSURL(string: "http://localhost:8888/post.php")
let allData = NSData(contentsOfURL: url!)
let allJsonData : AnyObject! = NSJSONSerialization.JSONObjectWithData(allData!, options: NSJSONReadingOptions(0), error: nil)
if let json = allJsonData as? Array<AnyObject>{
//println(json)
for index in 0...json.count-1{
let post : AnyObject? = json[index]
//println(post)
let collection = post! as Dictionary<String, AnyObject>
//println(collection)
//println(collection["Eng_Title"])
var eTitle : AnyObject? = collection["Eng_Title"]
var jTitle : AnyObject? = collection["Jam_Title"]
var pCategory : AnyObject? = collection["Category"]
var imgPath : AnyObject? = collection["Category_Img"]
eTitles.append(eTitle as String)
jTitles.append(jTitle as String)
pCategories.append(pCategory as String)
imgPaths.append(imgPath as String)
}
}
println(eTitles)
println(jTitles)
println(pCategories)
println(imgPaths)
for var i = 0; i < pCategories.count; i++
{
let appDelegate = UIApplication.sharedApplication().delegate as AppDelegate
let managedContext = appDelegate.managedObjectContext!
let entity = NSEntityDescription.entityForName("Category", inManagedObjectContext: managedContext)!
let category = Category(entity: entity, insertIntoManagedObjectContext:managedContext)
category.title = pCategories[i]
category.path = fetchImg(imgPaths[i])
appDelegate.saveContext()
let en = NSEntityDescription.entityForName("Post", inManagedObjectContext: managedContext)!
let post = Post(entity: en, insertIntoManagedObjectContext:managedContext)
post.jtitle = jTitles[i]
post.etitle = eTitles[i]
post.category = category
appDelegate.saveContext()
}
}
func fetchImg(path : String) -> String{
var urlWebView = NSURL(string: path)!
println(urlWebView)
var requestWebView = NSURLRequest(URL: urlWebView)
var saveP : String = ""
NSURLConnection.sendAsynchronousRequest(requestWebView, queue: NSOperationQueue.mainQueue(), completionHandler: {
response, data, error in
if error != nil {
println("There was an error")
}
else {
// let musicFile = (data: data)
var documentsDirectory:String?
var paths:[AnyObject] = NSSearchPathForDirectoriesInDomains(NSSearchPathDirectory.DocumentDirectory, NSSearchPathDomainMask.UserDomainMask, true)
if paths.count > 0 {
documentsDirectory = paths[0] as? String
var savePath = documentsDirectory! + "/" + NSUUID().UUIDString + ".jpg"
println(savePath)
saveP = savePath
NSFileManager.defaultManager().createFileAtPath(savePath, contents: data, attributes: nil)
}
}
})
return saveP
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}
このアプリを実行するたびに、次の行で停止します:
NSURLConnection.sendAsynchronousRequest(requestWebView、キュー: NSOperationQueue.mainQueue()、completionHandler: {
(ここでやろうとしているのは、Json データを解析して配列に入れ、それを CoreData に保存することです。問題はfetchImg()関数です。Json データからのパスをこの関数と関数は、Web から実際の画像を取得し、パスを作成してデータをデバイスに保存し、実際に画像が保存されるパスを返します。)
何かアドバイス？
私の貧弱な英語の説明で申し訳ありません!!!
ありがとう！