通过存图片链接的数组循环将图片下载转换成imageview

  //将下载的图片循环存入图片的数组中

    for ( int i = 0 ; i<count; i++) 

    {

        //picarray为存放图片路径的数组

        NSString * str = [picArray objectAtIndex:i];

        NSURL * url_josna=[NSURL URLWithString:str];

        NSURLRequest * request =[NSURLRequest requestWithURL:url_josna cachePolicy:NSURLRequestReloadIgnoringLocalAndRemoteCacheData timeoutInterval:10.0f];

        //发送同步请求得到的数据

        NSData * data=[NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];

 //self.p_w_picpath为属性

        self.p_w_picpath = [UIImage p_w_picpathWithData:data];

        [p_w_picpathdataArray addObject:self.p_w_picpath];

    }

    //将图片从数组取出循环贴在scroview上

    for (int i = 0; i<count; i++)

    {

        NSLog(@"%d",i);

        UIImageView * p_w_picpatha = [[UIImageView alloc] initWithFrame:CGRectMake(320*i, 0, 320, 480)];

        [p_w_picpatha setImage:[p_w_picpathdataArray objectAtIndex:i]];

        NSLog(@"%@",[p_w_picpathdataArray objectAtIndex:i]);

        [scro addSubview:p_w_picpatha];

        [p_w_picpatha release];

    }