Activity Lifecycle

Each activity in an application goes through its own lifecycle. Once and only once when an activity is created, is the onCreate() function executed. If the activity exits, the onDestroy() function is executed. In between, various events can lead to the activity being in multiple different states, as illustrated in Figure 2.2.The next recipe provides an example of each of these functions.

Activity starts onCreate()

i User navigates ^ ^ back to the activity J

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( Other applications ^ ^ need memory J

Character Building Thought Power

Character Building Thought Power

Character-Building Thought Power by Ralph Waldo Trine. Ralph draws a distinct line between bad and good habits. In this book, every effort is made by the writer to explain what comprises good habits and why every one needs it early in life. It draws the conclusion that habits nurtured in early life concretize into impulses in future for the good or bad of the subject.

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