UIWebView's “loadData” method does not accept nil for baseURL in Swift 2

问题

I don't want to pass any value to baseURL parameter in loadData method of UIWebView.

In Swift 1.2, nil works fine:

self.loadFundInfo.loadData(responseData, MIMEType: contentType, textEncodingName: "", baseURL: nil)

In Swift 2.0, how to do the same thing?

I am getting this error:

Nil is not compatible with expected argument type NSURL

回答1:

The error message is rather self-explanatory: the baseURL parameter must now be of type NSURL, not NSURL? (not an optional anymore, so it can not be nil).

Method signature in Swift 2 is:

loadData(data: NSData, MIMEType: String, textEncodingName: String, baseURL: NSURL)

The answer is you can't do the same thing, you have to provide a base URL.

来源：https://stackoverflow.com/questions/32761819/uiwebviews-loaddata-method-does-not-accept-nil-for-baseurl-in-swift-2