willRotateToInterfaceOrientation:duration is deprecated. Implement viewWillTransitionToSize:withTransitionCoordinator - ios

Question

I got a list of deprecated warning once I updated my xcode to xcode9 and I have no Idea how to fix it
'willRotateToInterfaceOrientation:duration:' is deprecated: first deprecated in iOS 8.0 - Implement viewWillTransitionToSize:withTransitionCoordinator: instead
'willAnimateRotationToInterfaceOrientation:duration:' is deprecated: first deprecated in iOS 8.0 - Implement viewWillTransitionToSize:withTransitionCoordinator: instead
'didRotateFromInterfaceOrientation:' is deprecated: first deprecated in iOS 8.0
'interfaceOrientation' is deprecated: first deprecated in iOS 8.0
- (void)viewWillAppear:(BOOL)animated {
[super viewWillAppear:animated];
[self.view addObserver:self forKeyPath:#"bounds" options:NSKeyValueObservingOptionNew context:nil];
if (!_viewFirstAppeared) {
_viewFirstAppeared = YES;
void(^applyViews)(void) = ^{
[self.centerController.view removeFromSuperview];
[self.centerView addSubview:self.centerController.view];
[self doForControllers:^(UIViewController* controller, IIViewDeckSide side) {
[controller.view removeFromSuperview];
[self.referenceView insertSubview:controller.view belowSubview:self.slidingControllerView];
}];
[self setSlidingFrameForOffset:_offset forOrientation:_offsetOrientation];
self.slidingControllerView.hidden = NO;
self.centerView.frame = self.centerViewBounds;
self.centerController.view.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
self.centerController.view.frame = self.centerView.bounds;
[self doForControllers:^(UIViewController* controller, IIViewDeckSide side) {
controller.view.frame = self.sideViewBounds;
controller.view.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
}];
[self applyShadowToSlidingViewAnimated:NO];
};
if ([self setSlidingAndReferenceViews]) {
applyViews();
applyViews = nil;
}
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, 0.001 * NSEC_PER_SEC), dispatch_get_main_queue(), ^(void){
if (applyViews) applyViews();
[self setSlidingFrameForOffset:_offset forOrientation:_offsetOrientation];
[self hideAppropriateSideViews];
});
[self addPanners];
if ([self isSideClosed:IIViewDeckLeftSide] && [self isSideClosed:IIViewDeckRightSide] && [self isSideClosed:IIViewDeckTopSide] && [self isSideClosed:IIViewDeckBottomSide])
[self centerViewVisible];
else
[self centerViewHidden];
}
else if (_willAppearShouldArrangeViewsAfterRotation != UIDeviceOrientationUnknown) {
for (NSString* key in [self.view.layer animationKeys]) {
[self.view.layer animationForKey:key].duration);
}
[self willRotateToInterfaceOrientation:self.interfaceOrientation duration:0];
[self willAnimateRotationToInterfaceOrientation:self.interfaceOrientation duration:0];
[self didRotateFromInterfaceOrientation:_willAppearShouldArrangeViewsAfterRotation];
}
[self.centerController viewWillAppear:animated];
[self transitionAppearanceFrom:0 to:1 animated:animated];
_viewAppeared = 1;
}

Answer 1

I was just searching for the same exact thing and found something in iOS documentation and after reading it and since I have users who still have iOS 8. I kept the old two function and add the new one to it.
// old ones
- (void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration {
[super willRotateToInterfaceOrientation:toInterfaceOrientation duration:duration];
[self handleInterfaceOrientation];
}
-(void)didRotateFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation {
[super didRotateFromInterfaceOrientation:fromInterfaceOrientation];
[self handleInterfaceOrientation];
}
// the new method
- (void)viewWillTransitionToSize:(CGSize)size withTransitionCoordinator:(id<UIViewControllerTransitionCoordinator>)coordinator {
[super viewWillTransitionToSize:size withTransitionCoordinator:coordinator];
[coordinator animateAlongsideTransition:^(id<UIViewControllerTransitionCoordinatorContext> _Nonnull context) {
// what ever you want to prepare
} completion:^(id<UIViewControllerTransitionCoordinatorContext> _Nonnull context) {
[self handleInterfaceOrientation];
}];
}
- (void)handleInterfaceOrientation {
if ([[UIApplication sharedApplication] statusBarOrientation] == UIInterfaceOrientationLandscapeLeft || [[UIApplication sharedApplication] statusBarOrientation] == UIInterfaceOrientationLandscapeRight) {
// Landscape
} else {
// Portrait
}
}