異步GEI (1)

發(fā)布時間：2020-08-03 05:06:36 來源：網(wǎng)絡(luò) 閱讀：251 作者：緣起愿落欄目：開發(fā)技術(shù)

將網(wǎng)址初始化成一個OC字符串對象.

    NSString * urlString = @"http://p_w_picpath.zcool.com.cn/56/13/1308200901454.jpg";
    NSString * newUrlString = [urlString stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];

構(gòu)建網(wǎng)絡(luò)URL對象

NSURL * URL = [NSURL URLWithString:newUrlString];

創(chuàng)建網(wǎng)絡(luò)請求

NSURLRequest * request = [NSURLRequest requestWithURL:URL cachePolicy:NSURLRequestReloadIgnoringLocalCacheData timeoutInterval:10];

創(chuàng)建異步連接

[NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse *response, NSData *data, NSError *connectionError) {

解析

       NSDictionary * dic = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:nil];
       NSLog(@"%@",dic);

       self.p_w_picpathView.p_w_picpath = [UIImage p_w_picpathWithData:data];
}];

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異步GEI (1)

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