O'Reilly logo

iOS Programming: The Big Nerd Ranch Guide by Joe Conway, Aaron Hillegass

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Application States and Transitions

In Homepwner, BNRItems are archived when the application enters the background state. It is useful to understand all of the states an application can be in, what causes them to transition between states, and how your code can be notified of these transitions. This information is summarized in Figure 14.5.

Figure 14.5  States of typical application

States of typical application

When an application is not running, it is in the not running state, and it does not execute any code or have any memory reserved in RAM.

After the user launches an application, it enters the active state. When in the active state, an application’s interface is on the ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required