问题描述
我正在使用返回 Base64 字符串的 API，如下所示:
I'm using an API that is returning a Base64 string, something like this:
data:application/pdf;base64,**BASE64STRING**
BASE64STRING 是我显示 PDF 所需要的.
Where BASE64STRING is what I need to display the PDF.
到目前为止，我只创建了一个获取 Base64 字符串的 Data 对象:
So far I only created a Data object that gets the Base64 string:
let data = Data(base64Encoded: BASE64STRING)
我尝试在 webview 中加载它:
And I tried to load it in the webview:
webView.load(data!, mimeType: "application/pdf", textEncodingName: "", baseURL: URL(string: "")!)
问题是我没有本地PDF文件，所以不知道应该在baseURL中放什么.目前它给了我一个 fatal error: unexpectedly found nil while unwrapping an Optional value
The problem is that I don't have a local PDF file, so I don't know what I should put in baseURL. Currently it's giving me a fatal error: unexpectedly found nil while unwrapping an Optional value
如何在 webView 中加载 PDF?有没有更好的方法来做到这一点?
How can I load the PDF in the webView? Is there any better way to do that?
推荐答案
我解决了这个问题，尽管我不确定这是否是一个好方法，解决方案是将任何有效的 URL 放入 baseUrl:
I solved the problem, despite that I'm not sure if it's a good approach, the solution is to put any valid URL in baseUrl:
webView.load(data!, mimeType: "application/pdf", textEncodingName: "", baseURL: URL(string: "https://www.google.com")!)
这篇关于如何从 UIWebView 中的 Base64 字符串加载 PDF的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持跟版网！