Updated View Bounds After Orientation Change...
Updated View Bounds After Orientation Change...
- Subject: Updated View Bounds After Orientation Change...
- From: "Peters, Brandon" <email@hidden>
- Date: Sun, 25 Oct 2015 03:45:08 +0000
- Thread-topic: Updated View Bounds After Orientation Change...
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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