Devs,
I have a UIStackView, which holds an image view and a text view. The image view
has an activity indicator view as a subview (I add this programmatically). When
the view initially view loads, I center the activity indicator view within the
image view and starting the animation for the AIV. But, in the process of
waiting for the image to load, if I rotate the image view, the AIV needs to be
re-centered. I added code to listen for the status bar orientation change
notification, and have a method to invoke upon the notification
(UIApplicationDidChangeStatusBarOrientationNotification). In that method, I
attempt to get the bounds of the image view and use that to re-center the AIV
within the image view. But, it seems that the value of the bounds of the image
view is not changing when the device orientation changes. Is there a “reliable"
way to get the updated bounds for a view after the device orientation has
changed? Code ->
// start listening for orientation changes
NSNotificationCenter.defaultCenter().addObserver(self, selector:
"orientationDidChange:",
name: UIApplicationDidChangeStatusBarOrientationNotification,
object: nil)
…
func orientationDidChange(notification: NSNotification) {
// get image view bounds
let viewBounds = _imageView.bounds
// recenter the activity indicator
_activityIndicator.center = CGPointMake(CGRectGetMidX(viewBounds),
CGRectGetMidY(viewBounds))
}
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