This is the best way I've found so far to handle one time setup that requires the view already be laid out (so no viewWillAppear) when using auto layout.

gistfile1.m

@property (nonatomic, assign) BOOL viewHasInitialLayout;

- (void)viewDidLayoutSubviews
{
    [super viewDidLayoutSubviews];

    if (!self.viewHasInitialLayout) {
        // Do stuff
        self.viewHasInitialLayout = YES;
    }
}