-4
我有一个iOS和Webservice的小项目,我试图从webservice加载数据时打开此应用程序。所以当数据加载时,UIthread将会是“PAUSE”...那么我怎么能像Android中的AsyncTask那样在背景中做到这一点?在后台做Swift
self.conectDataNew.DemoSVNew("Movie", field: "IDMovie,Image,NameViet,Point", condition: "Year|DESC,Limit|7,IDState|2", request: "") { (stringData) in
let dataArray = stringData.componentsSeparatedByString("|")
let decodedData = NSData(base64EncodedString: dataArray[2], options: NSDataBase64DecodingOptions(rawValue: 0))
let decodedString = NSString(data: decodedData!, encoding: NSUTF8StringEncoding)
let dataArr = decodedString!.componentsSeparatedByString("<row>")
for i in 0...dataArr.count-1 {
let menu = dataArr[i].componentsSeparatedByString("|")
let url:NSURL = NSURL(string: menu[1])!
let dt :NSData = NSData(contentsOfURL: url)!
self.idNew.append(menu[0])
self.posterNew.append(dt)
self.namesNew.append(menu[2])
self.scoreNew.append(menu[3])
}
self.clvNew?.reloadData()
}
你试过谷歌搜索'迅速异步'?作为第一个结果,产生https://www.raywenderlich.com/79149/grand-central-dispatch-tutorial-swift-part-1! – luk2302
dispatch_async(dispatch_get_global_queue(INT(QOS_CLASS_USER_INITIATED.value),0)){// 1 让窗格在overlayImage = self.faceOverlayImageFromImage(self.image) dispatch_async(dispatch_get_main_queue()){// 2 self.fadeInNewImage(窗格在overlayImage)//3 } } 是这种方法吗?背景在哪里? –
**阅读教程**,没什么可说的。 – luk2302