Please note, this blog entry is from a previous course. You might want to check out the current one.
Use Autolayout to make your calculator look good on all different kinds of iPhones in both Portrait and Landscape orientations (don’t worry about iPads for now). Just like we used ctrl-drag to the edges of our scene to position display, you can you ctrl-drag between your UILabels (and/or your C button) to fix their vertical/horizontal spacing relative to each other. Use the blue gridlines! It’s probably a good idea to reset all of your autolayout (via the button in lower right corner), then use ctrl-drag to add constraints to things that are not part of the grid of keypad and operation buttons, then use the buttons in the lower right to lay out those (after you’ve moved them in to place relative to your UILabel(s), etc., using dashed blue lines, of course!).
… which we did already for the previous task …