Swift - 异步加载图片

发布时间：2020-12-14 07:14:55 所属栏目：百科来源：网络整理

导读：fun loadImage(imgView:ImageView,imgURL:NSURL) { //定义NSURL let imgURL: NSURL = NSURL (string: " http://hangge.com/blog/images/logo.png" )!; //定义NSURLRequest let request: NSURLRequest = NSURLRequest ( URL :imgURL); //异步获取图片 NSURLCo

    fun loadImage(imgView:ImageView,imgURL:NSURL) { 
   
         //定义NSURL 
        
         let 
         imgURL: 
         NSURL 
         = 
         NSURL 
         (string: 
         " 
         http://hangge.com/blog/images/logo.png" 
         )!; 
        
         //定义NSURLRequest 
        
         let 
         request: 
         NSURLRequest 
         = 
         NSURLRequest 
         ( 
         URL 
         :imgURL); 
        
         //异步获取图片 
        
         NSURLConnection 
         .sendAsynchronousRequest(request,queue: 
         NSOperationQueue 
         .mainQueue(), 
        
         completionHandler: {(response: 
         NSURLResponse 
         !,data: 
         NSData 
         !,error: 
         NSError 
         !)-> 
         Void 
         in 
        
         //将图片数据赋予UIImage 
        
         let 
         img= 
         UIImage 
         (data:data); 
        
         imgView 
         .image = img; 
        
         }) 
        
         }

（编辑：李大同）

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