Graphics Programs Reference
In-Depth Information
Launch Images
Another item you can set for an application in the
Summary
panel is the
launch image
,
which appears while an application is loading. (If you don't supply a launch image, the user
will see a black screen during this period.) The launch image has a specific role on iOS: it
conveys to the user that the application is indeed launching and depicts the user interface
that the user will interact with once the application has finished launching. Therefore, a
good launch image is a content-less screenshot of the application. For example, the
Weath-
er
application's interface is a rounded square with the name of a city and its current temper-
ature;
Weather
's launch image is just that rounded square. (Keep in mind that the launch
image is replaced after the application has launched; it does not become the background
image of the application.)
Xcode
can grab a screenshot from your device, and you can use this screenshot as the
launch image for
Quiz
. To get a screenshot, build and run
Quiz
on a device. Open the
Or-
ganizer
window in
Xcode
and locate your device from the device list. (It will be the one
with a green dot next to it.) Underneath your device, select the
Screenshots
item. In the bot-
tom righthand corner of the editor area, click
New Screenshot
, and the screenshot will ap-
pear in the editor area. You can either drag this image onto the
Launch Images
tile or click
the
Save as Launch Image
button at the bottom of the
Organizer
window (
Figure 1.25
).
(For most applications, you will first have to edit the screenshot in an image-editing applic-
ation to get the right look.)
Figure 1.25 Taking a screenshot with Xcode
