Core Apps » ChatSecure:Android

- (void)viewWillTransitionToSize:(CGSize)size withTransitionCoordinator:(id<UIViewControllerTransitionCoordinator>)coordinator {

    [super viewWillTransitionToSize:size withTransitionCoordinator:coordinator];

    // After the transition is done, we need to reset the size caches and relayout

    // Do this using the technique in https://stackoverflow.com/questions/26943808/ios-how-to-run-a-function-after-device-has-rotated-swift

    [coordinator animateAlongsideTransition:nil completion:^(id<UIViewControllerTransitionCoordinatorContext>  _Nonnull context) {

        [self.messageSizeCache removeAllObjects];

        [self.collectionView.collectionViewLayout invalidateLayoutWithContext:[JSQMessagesCollectionViewFlowLayoutInvalidationContext context]];

    }];

}