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Mobile App Development vocabulary · App Lifecycle and Architecture

View controller

Meaning in mobile app development, with examples

nounCommon term

In mobile app development, view controller means: In 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.

In Turkish: view controller, görünüm denetleyicisi

How it is used

Developers push or present a view controller and override methods such as viewDidLoad and viewWillAppear. 'Massive view controller' is a well-known problem where too much code ends up in one class. In SwiftUI, views take over much of this role.

Example sentences

  1. The profile view controller has grown to 2,000 lines; we need to split it.

  2. Present the login view controller modally if the session has expired.

Common collocations

  • push a view controller
  • present a view controller
  • root view controller
  • massive view controller
  • activityIn Android, a core app component that represents one screen with a user interface and has its own lifecycle, from being created to being destroyed.
  • 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.
  • screenOne full view of an app that the user sees at a time, such as the login screen or the settings screen; apps are planned as a set of screens.
  • modalA screen or window shown on top of the current one that users must deal with, by finishing a task or closing it, before they can return to what they were doing.
  • navigation barOn iOS, the bar at the top of a screen that shows the title, a back button and action buttons; on Android, the name also refers to the system bar with the back and home controls.

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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