如何显示网址中的图片? [英] how can i display image from url?

问题描述

我有一个字符串变量tmpImgURLStr，其中包含类似www.abc.com/img.png的URL.我想在我的imageView中显示该图像，因为我已经使用了一些代码，但是它不能正常工作，如下所示:

I have a string variable tmpImgURLStr which contains URL like www.abc.com/img.png. i want to display that image in my imageView for that i have use some code but it's not working which is given below:

NSLog(@"Img URL === %@",tmpImgURLStr);

NSData *mydata = [[NSData alloc] initWithContentsOfURL:[NSURL URLWithString:[NSString stringWithFormat:@"%@",tmpImgURLStr]]]; 

UIImage *myimage = [[UIImage alloc] initWithData:mydata];
[logoImg setImage:myimage];

推荐答案

据我从您的网址可以得知-您有pdf，而不是图片.通常WebView用于显示此类数据.

As far as I can tell from your url - you have pdf, not an image. Usually WebViews are used for displaying this sort of data.

更新

您的NSData初始化时间太长.实际上，您可以在不提供格式化字符串的情况下启动URL:

Your NSData initiation is kinda too long. You can actually initiate a URL without supplying formatted string:

NSData *mydata = [[NSData alloc] initWithContentsOfURL:[NSURL URLWithString:tmpImgURLStr]];

我也注意到您的网址没有协议.您可能想要尝试向其中添加http://或https://，然后查看会发生什么.并且以防万一您的logoImg是否实际上已连接到NIB中的NSImageView.

Also I've noticed that your URL is without protocol. You may want to try adding http:// or https:// to it and then see what happens. And just in case check if your logoImg is actually wired to the NSImageView in your NIB.

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