Application States and Transitions
In Homepwner, the items 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 18.6.
Figure 18.6 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 ...
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