標籤：tar eve www get scrolling blog pre ext sans
代碼：
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{ dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{ //在後台進行網址的解析操作 NSURL * url = [NSURL URLWithString:@"http://www.baidu.com"]; NSError * error; NSString * data = [NSString stringWithContentsOfURL:url encoding:NSUTF8StringEncoding error:&error]; if (data != nil) { dispatch_async(dispatch_get_main_queue(), ^{ //成功。跳回主介面 NSLog(@"call back, the data is: %@", data); }); } else { //失敗，返回失敗提示。 NSLog(@"error when download:%@", error); } }); }
輸出：
2015-07-15 21:51:37.902 CGD-使用[1719:81744] call back, the data is: <html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /></head><body style=‘margin:0px;overflow-x:hidden;overflow-y:hidden;‘><iframe id=‘i‘ src="http://www.baidu.com/?tn=96181616_hao_pg" scrolling=auto width=‘100%‘ height=‘100%‘ frameborder=‘no‘ onload=‘‘style=‘position:fixed;‘></iframe></body></html>
參考資料
http://www.cnblogs.com/pure/archive/2013/03/31/2977420.html
【讀書筆記】iOS-GCD-用法
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