April 2020
Intermediate to advanced
528 pages
15h 40m
English
Content preview from iOS Programming: The Big Nerd Ranch Guide, 7th Edition
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Application Icons
While running Quiz, select Hardware → Home from the simulator’s menu. You will see that Quiz’s icon is a boring, default tile. Let’s give Quiz a better icon.
An application icon is a simple image that represents the application on the iOS Home screen. Different devices require different-sized icons, some of which are shown in Table 1.1.
Table 1.1 Application icon sizes by device
| Device | Application icon sizes |
|---|---|
| iPhone |
180x180 pixels (@3x) 120x120 pixels (@2x) |
| iPad and iPad mini |
152x152 pixels (@2x) |
| iPad Pro |
167x167 pixels (@2x) |
(2x and 3x refer to the point sizes in Retina displays. You will read more about display resolutions in Chapter 3.)
We have prepared an icon image file (size ...
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