如何在UIImageView中显示base64图像? [英] How to display a base64 image within a UIImageView?
本文介绍了如何在UIImageView中显示base64图像?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我得到这个Base64的GIF图像:
I got this Base64 gif image:
R0lGODlhDAAMALMBAP8AAP///wAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAACH5BAUKAAEALAAAAAAMAAwAQAQZMMhJK7iY4p3nlZ8XgmNlnibXdVqolmhcRQA7
现在我想在我的iPhone应用程序中显示这个Base64字符串。
Now I want to display this Base64 String within my IPhone App.
我可以通过使用WebView来实现这一点:
I could get this working by using the WebView:
aUIWebView.scalesPageToFit = NO;
aUIWebView.opaque = NO;
aUIWebView.backgroundColor = [UIColor clearColor];
[aUIWebView loadHTMLString:
@"<html><body style=""background-color: transparent""><img src=""data:image/png;base64,R0lGODlhDAAMALMBAP8AAP///wAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACH5BAUKAAEALAAAAAAMAAwAQAQZMMhJK7iY4p3nlZ8XgmNlnibXdVqolmhcRQA7"" /></body></html>"
baseURL:nil];
使用UIImageView可以做同样的事吗?
Is it possible to do the same thing by using the UIImageView?
推荐答案
您不必对其进行编码。只需创建一个NSUrl,它就知道数据: - url。
You don't have to encode it. Simply make a NSUrl, it knows the "data:"-url.
NSURL *url = [NSURL URLWithString:base64String];
NSData *imageData = [NSData dataWithContentsOfURL:url];
UIImage *ret = [UIImage imageWithData:imageData];
如评论中所述,您必须确保使用<$ c $预先添加数据c> data:image / png; base64,或者你的base64数据没用。
As mentioned in the comments, you have to make sure that you prepend your data with data:image/png;base64,
or else your base64 data is useless.
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