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Log for later lookup. Thank you1 Swift User Guide. PDF Downloadhttp://download.csdn.net/detail/swifttrain/74429212 The Swift programming Language. PDF official manual download PDF versionhttp://download.csdn.net/detail/swifttrain/74428993 The Swift programming Language.mobi Official manual

, progress bar continue to walk.Original: Swift-http network operation library Alamofire use detailed 3 (file download, breakpoint continued transmission) Original: Swift-http network operation library Alamofire use details 3 (file download, breakpoint continued transmission) Import UikitImport AlamofireClass Viewcont

UIImageView for displaying the picture, and one for UIActivityIndicatorView displaying the load and turning the circle.And then get two more buttons. No, the following source is attached.In the Viewdidload method, set the activity.hidden = true activity control to be hidden by default.The code of the first button click event activity.hiddenfalse activity.startAnimating() NSThread.detachNewThreadSelector("downLoadImage"selfnil);Show controls, turn on animations, open a thread selector ：线

Swift uses NSURLConnection for Synchronous asynchronous download (instance parsing) and swiftnsurl Original blog, reprinted, please indicate the source Http://blog.csdn.net/hello_hwc I. synchronous and asynchronousIn short, synchronization means that the function or closure (the block in objective c) can be returned only after execution. Asynchronous is to return immediately, and then call back after the as

:{ ( response:nsurlresponse!,data:nsdata!,error:nserror!) Void in if error = = Nil data?. Length > 0{ var image:uiimage = UIImage (data:data!)! Self.imageview.image = Image }} } override Func didreceivememorywarning () { Super.didreceivememorywarning () }}Download the original picturewatermark/2/text/ahr0cdovl2jsb2cuy3nkbi5uzxqvsgvsbg9fshdj/font/5a6l5l2t/fontsize/400/fill/i0jbqkfcma==/ Dissolv

thread.Handler When a request is completed or an error occurs, the execution of the closureSeveral parameters of closuresReponse Callback parameter, the URL returned by the server responseError Callback parameter to determine if there is an error generatingNSData Data downloaded toAlso take a picture as an exampleyou can see that the view is loaded immediately, but the picture does not appear immediately, and the UI is updated when the picture is downloaded. As you can see, an asynchronous

Xcode is an integrated development tool on Apple systems that can develop new applications for MAC OS and IOS systems. Here is an example of Apple's Mac OS system, which describes how to download and install Xcode.Tools/Materials Xcode Method/Step Search for the Xcode keyword directly on the App Store on your Mac, and you'll see it in the Search list, click to download, Then enter