Is it possible to observe self.layer.frame.size
change in UICollectionViewCell
?
I tried to register observer do it like this:
override func awakeFromNib() {
super.awakeFromNib()
self.layer.addObserver(self, forKeyPath: "frame", options: NSKeyValueObservingOptions(rawValue: 0), context: nil)
}
And then observe like this:
override func observeValue(forKeyPath keyPath: String?, of object: Any?, change: [NSKeyValueChangeKey : Any]?, context: UnsafeMutableRawPointer?) {
print(keyPath ?? "NIL")
}
And it came out that observeValue
method has been never called.
You can override the var frame and add your function on didSet
override var frame: CGRect {
didSet {
//do something
}
}
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