The Core iOS Developer’s Cookbook, Fifth Edition

Recipe: Scrolling Horizontal Lists

Collection views offer the ability to create horizontal scrolling lists, a counterpoint to table views that only scroll vertically. To accomplish this, you need to take a few things into account, primarily that flow layouts in their default state naturally wrap their sections. Consider Figure 10-5. It shows two collection views, both of which scroll horizontally. The top image consists of a single section with 100 items; the bottom has 100 sections of a single item each.

Figure 10-5 Top: A single section with 100 items. Bottom: 100 sections with a single item each.

You could force the top layout not to wrap ...