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Mobile App Development vocabulary · App Lifecycle and Architecture

Activity

Meaning in mobile app development, with examples

/ækˈtɪvəti/nounCommon term

In mobile app development, activity means: In Android, a core app component that represents one screen with a user interface and has its own lifecycle, from being created to being destroyed.

In Turkish: activity, aktivite

How it is used

Developers talk about the main activity, starting an activity with an intent, lifecycle methods (onCreate, onStart, onResume, onPause, onStop, onDestroy) and the activity being recreated after rotation. Modern apps often use a single activity with many fragments or Compose screens.

Example sentences

  1. The activity is recreated when the user rotates the phone, so the form data disappears.

  2. We moved to a single-activity architecture last year.

Common collocations

  • main activity
  • start an activity
  • activity lifecycle
  • single-activity architecture
  • view controllerIn iOS UIKit, an object that manages one screen or part of a screen: it loads the views, responds to user actions and handles events such as the screen appearing.
  • app lifecycleThe series of states an app moves through from launch to being closed, such as active, in the background or suspended, and the events the system sends at each change.
  • AndroidGoogle's mobile operating system, used by many phone makers such as Samsung, Xiaomi and Google itself. Its apps are mainly written in Kotlin or Java.
  • orientationThe way a device is held and the screen is shown: portrait (upright) or landscape (sideways); an app can support one or both.

This word in other fields

The same English word can have a different meaning in another field:

More terms: App Lifecycle and Architecture

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