AN4430 datasheet(13/42 Pages) STMICROELECTRONICS

部件名	AN4430

功能描述	Designing an NFC Android Application for M24SR and M24LR devices

PDF	42 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

13 / 42 page

DocID025722 Rev 1

13/42

AN4430

Android Application Overview

Figure 4 is an activity skeleton to show which callback method set has to be implemented to

handle the fundamental lifecycles methods. Taken together, those callbacks define the

entire life cycle of an activity managed by the android system. The same figure shows that

developer can manage three different nested loops in the activity life cycle

•

Entire lifetime: Bound within the onCreate() and onDestroy() calls, activity should setup

or release resources on onCreate() and onDestroy() system call respectively.

•

Visible lifetime: Bound within onStart() and onStop() calls, user can see the activity on-

screen and the required resources by the activity have to be maintains.

•

Foreground lifetime: Bound within the onResume() and onPause() calls, user can

interact with the activity’s screen.

Figure 4. Activity life cycle

AN4430 数据表(PDF) 13 Page - STMicroelectronics