UITableView subclass with autolayoutable header and footer

AutolayoutTableView.m

@interface AutolayoutTableView : UITableView

@end

@implementation AutolayoutTableView

- (void)layoutSubviews {
    [super layoutSubviews];

    // Dynamic sizing for the header view
    if (self.tableHeaderView) {
        CGFloat height = [self.tableHeaderView systemLayoutSizeFittingSize:UILayoutFittingCompressedSize].height;
        CGRect headerFrame = self.tableHeaderView.frame;

        // If we don't have this check, viewDidLayoutSubviews() will get
        // repeatedly, causing the app to hang.
        if (height != headerFrame.size.height) {
            headerFrame.size.height = height;
            self.tableHeaderView.frame = headerFrame;
            self.tableHeaderView = self.tableHeaderView;
        }

        [self.tableHeaderView layoutIfNeeded];
    }

    // Dynamic sizing for the header view
    if (self.tableFooterView) {
        CGFloat height = [self.tableFooterView systemLayoutSizeFittingSize:UILayoutFittingCompressedSize].height;
        CGRect footerFrame = self.tableFooterView.frame;

        // If we don't have this check, viewDidLayoutSubviews() will get
        // repeatedly, causing the app to hang.
        if (height != footerFrame.size.height) {
            footerFrame.size.height = height;
            self.tableFooterView.frame = footerFrame;
            self.tableFooterView = self.tableFooterView;
        }

        self.tableFooterView.transform = CGAffineTransformMakeTranslation(0, self.contentSize.height - footerFrame.size.height);
        [self.tableFooterView layoutIfNeeded];
    }
}

@end