Stateless vs Stateful In Flutter - #7
Stateless and stateful are two fundamental concepts in Flutter, a popular framework for building cross-platform mobile applications. They refer to the type of widgets used in the user interface (UI)
Stateless Widgets:
Stateless widgets are immutable, meaning they cannot change their state once created. They represent parts of the UI that do not depend on any changing data or variables. These widgets are typically used to display static content and do not maintain any internal state. As a result, they are simple and efficient. Stateless widgets are rebuilt entirely whenever the parent widget rebuilds.
Example: Displaying a static text label or an icon in a UI is an excellent use case for a stateless widget since the content doesn't change based on user interactions or changing
Stateful Widgets:
Stateful widgets, on the other hand, can change their internal state during the lifetime of the widget. They hold dynamic data and respond to user interactions or data changes, updating their appearance accordingly. When the state of a stateful widget changes, only the necessary parts of the UI are updated, instead of rebuilding the whole widget.
Example: A button that toggles its color when pressed or a counter that increments with each tap are good examples of stateful widgets. They maintain their state and update the UI accordingly.
In summary, stateless widgets are used for static content, while stateful widgets are used for content that needs to change and respond to user interactions or dynamic data updates. Combining these two types of widgets appropriately helps in creating interactive and efficient Flutter applications.