swift - 将 base64 字符串作为 PDF 显示到 Web View 中

Question

我有代表 PDF 的 base64 字符串。我想在 Webview 中显示它，但我不知道该怎么做。

我该如何处理？我需要先将 String 转换为 Data 吗？

Answer 1

请尝试下面的代码。

if let decodeData = NSData(base64EncodedString: base64String, options: .IgnoreUnknownCharacters) {
    yourWebView.loadData(decodeData, MIMEType: "application/pdf", textEncodingName: "utf-8", baseURL: NSURL(fileURLWithPath: ""))
} // since you don't have url, only encoded String

swift 4.0

if let decodeData = Data(base64Encoded: base64String, options: .ignoreUnknownCharacters) {
        yourWebView.load(decodeData, mimeType: "application/pdf", textEncodingName: "utf-8", baseURL: URL(fileURLWithPath: ""))
} // since you don't have url, only encoded String