A Glance At Android Application Development Life Cycle
Android is widely used these days in the field of mobile development compared to other operating systems. This operating system has received an overwhelming response from the developer community. Personal to professional, every mobile apps development service is covered by Android application services.
Let’s have a look at the various aspects of Android application development. The Android developers follow Android application life cycle for creating any app. The Android components include activity, service, broadcast receiver and content provider. There is an activity stack to manage all the activities.
The Android application life cycle includes creation of a Linux process which encapsulates the Android app code. The process terminates in two cases – after completing the code execution or when the system needs to reclaim its memory for executing another application. In this method the lifetime of the application is not directly controlled by itself.
It depends on the system which is executing it. The system determines it by analyzing the combinations of part of the application running currently, importance of the app to the user and overall availability of system memory. Each component of the Android app follows a life cycle in which they are in three states – input, process and output.In the beginning state, the operating system initiates the components to respond to the intents. In the end state the instances are destroyed.In case of activities the component would be visible or invisible to the user. This completes the Android application life cycle of the components of the Android OS.
Now when its about the Activity life cycle, it again has following four states:
Active or running state: When the activity is at the top of the stack. It is in the foreground of the screen, is visible to the user performing action.
Paused state: It is visible to the user but is out of focus. Another activity is occupying the top of the activity stack. This new activity is either transparent or doesn’t occupy the full screen space. This activity is alive which means it maintains information about all states and members. It can be killed by the system in case of low memory situation.
Stopped state: The activity is no longer visible to the user, its window is hidden. Another activity has taken precedence which is the reason why it can be easily killed by the system when the need of memory arises.
Destroyed state: The activity is invisible, all its member information is relieved and the memory is made free.
Thus, Android Application services include development of components by following complete life cycle. Due to this perfect methodology the Android apps development leaves an impeccable impact on mobile apps development.
Article Source: http://www.androidapplicationdevelopmentindia.com/android-application-development-life-cycle.html
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