如何在Swift项目iOS中使用XIB

Question

I had two separate Xcode projects that I have fused into a single one: a speech to text recognizer that is implemented with a XIB file, written in Objective-C, and another project that is just a conventional UI written in Swift with some more stuff. Both projects work flawlessly by themselves. I have cleaned out all the errors, and created a Bridging header file. So far, both Swift and Objective-C modules coexist, but obviously only the Swift part runs. I want to open the Objective-C XIB and display it in my swift-coded UI.

Answer 1

According to your screenshot, I assume you are using storyboard for your UI in your Swift application.

As your legacy UI is on XIB files, you need to load it programatically. To do that, you'll have to use loadNibNamed method like in the following example :

var nibs = NSBundle.mainBundle().loadNibNamed("Counter", owner: self, options: nil)
for v in nibs {
    if (v is Counter) {
       someViewInStoryboard.addSubview(v)
   }
}

Here I have a Counter.xib file which contains an custom UIView . Class for this view is Counter , which extends UIView .

So when your XIB is loaded, browse it to find your custom view, then add it as a subview of an existing UIView in your storyboard. Variable someViewInStoryboard in my example is an IBOutlet of this UIView .