Swift-具有不同方法名称的多个扩展名，但仍无法正常工作

Question

I have two framework projects (A and B) and in both the frameworks I have a UIViewController Extension.

1. My extension in framework B has method "loadFromNib"
2. In framework "B" I have classes accessing "loadFromNib"
3. In framework "B" I also refer the framework "A"
4. Now I have added UIViewController extension to Framework "A" but with the name "loadViewFromNib".

Now my existing classes throw error that loadFromNib is not available and suggests me to access the loadViewFromNib method. What is that I am missing here. Why my classes are not referring to the right extension

//Code from Framework B
extension UIViewController
{
    public class func loadFromNib() -> Self?
    {
        return loadNibFilePrivateMethod()
    }
    ....
}

//Code from Framework A
extension UIViewController
{
    public class func loadViewFromNib() -> Self?
    {
        return loadNibFilePrivateMethod()
    }
    ....
}

I am in the process of merging common code to Framework A from multiple other frameworks (owned by other teams) and cannot modify anything in any other frameworks. So I want my code to co-exist without breaking anything.

Answer 1

Now my existing classes throw error that loadFromNib is not available

Possibly because you are trying to use loadFromNib from outside the framework where it is declared? (That's what the error message ...not available means)

When you want a method/type/function to be available to other modules (think frameworks, targets) you need to declare them as public .

So to resolve your issue, declare you method

public func loadFromNib(...

and it will be available most likely.

Update

Are you calling the methods on a viewcontroller instance or on a view? The name suggests ambiguity in what they are expected to do.