CODEWITHSUNDEEP
iosswiftuiview
FlowCastv
FlowCastv

Reputation: 147

Warning on Custom UIView

I'm creating popup custom UIView. I had created custom.xib, custom.swift. In my custom.xib, my owner's object refer to custom. I had implement init func in custom.swift and loadNib with the name "custom". I got infinity call from the init func until I got this warning and breakpoint at the super.init(coder: aDecoder).

warning: could not load any Objective-C class information. This will significantly reduce the quality of type information available.

ViewController

let customView: Custom = Custom(frame: CGRectMake(100,100,200,200))
self.view.addSubview(customView)

Custom

var view: Custom!
override init(frame: CGRect) {
    super.init(frame: frame)
    loadNib()
}

required init?(coder aDecoder: NSCoder) {
    super.init(coder: aDecoder)
    loadNib()
}

private func loadNib() -> Custom {
    return NSBundle.mainBundle().loadNibNamed("Custom", owner:  self, options: nil)[0] as! Custom
}

Upvotes: 1

Views: 443

Answers (2)

Ayazmon
Ayazmon

Reputation: 1380

The reason you are getting this error is because your loadNib() and init methods are causing a recursion. imnosov's answer should solve your problem.

Upvotes: 0

imnosov
imnosov

Reputation: 856

Your loadNib() method is useless in this case. It returns instance of Custom view, but the result is never used by init methods. You can declare your loadNib() as a class method and remove init in Custom class:

class Custom: UIView {
    class func loadNib() -> Custom {
        return NSBundle.mainBundle().loadNibNamed("Custom", owner:  self, options: nil)[0] as! Custom
    }
}

Then you can use your loadNib() method to instantiate Custom view directly in ViewController and change frame in this way:

let customView = Custom.loadNib()
customView.frame = CGRectMake(100,100,200,200)
self.view.addSubview(customView)

Upvotes: 1

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