April 2011
Intermediate to advanced
1152 pages
27h 41m
English
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Bubble Blower enables users to actually blow on the phone to make bubbles to appear on the screen. These bubbles grow from the bottom of the screen and pop when they reach the top. This magical effect is made possible by leveraging the phone’s microphone to detect the sound of blowing, just like in Chapter 31, “Trombone.” Bubble Blower has an application bar for exposing instructions, settings, and an about page, but it can be hidden (or brought back) by tapping the screen. ...