It is also possible to observe bounds
of playerViewController.contentOverlayView
and compare that to [UIScreen mainScreen].bounds
, e.g.:
self.playerViewController = [AVPlayerViewController new];
// do this after adding player VC as a child VC or in completion block of -presentViewController:animated:completion:
[self.playerViewController.contentOverlayView addObserver:self forKeyPath:@"bounds" options:NSKeyValueObservingOptionNew | NSKeyValueObservingOptionOld context:NULL];
...
- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary<NSString *, id> *)change context:(void *)context {
if (object == self.playerViewController.contentOverlayView) {
if ([keyPath isEqualToString:@"bounds"]) {
CGRect oldBounds = [change[NSKeyValueChangeOldKey] CGRectValue], newBounds = [change[NSKeyValueChangeNewKey] CGRectValue];
BOOL wasFullscreen = CGRectEqualToRect(oldBounds, [UIScreen mainScreen].bounds), isFullscreen = CGRectEqualToRect(newBounds, [UIScreen mainScreen].bounds);
if (isFullscreen && !wasFullscreen) {
if (CGRectEqualToRect(oldBounds, CGRectMake(0, 0, newBounds.size.height, newBounds.size.width))) {
NSLog(@"rotated fullscreen");
}
else {
NSLog(@"entered fullscreen");
}
}
else if (!isFullscreen && wasFullscreen) {
NSLog(@"exited fullscreen");
}
}
}
}
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