Application Architecture Multiple Choice Questions

(1) Which of the following gesture of GestureDetector is equivalent to the mouse click event in flutter application?

A) onClick

B) onPress

C) onTap

D) onHold

Explanation

onTap is the event as well the event handler used in GestureDetector that is equivalent to the mouse click event used in desktop applications.

Answer

Easy Normal Difficult

(2) Which of the following function is used in stateFulWidget to refresh of UI of application?

A) refreshState

B) UpdateState

C) setState

D) createState

Explanation

setState is the method that is called whenever we want to reflect the changes or refresh the UI in flutter application.

Answer

Easy Normal Difficult

(3) Which of the following one is the multiple child widget in flutter application?

A) Center

B) AspecRatio

C) Stack

D) Padding

Explanation

In flutter widgets hierarchy Stack widget is multiple children widget. Using stack widget we can stack multiple widget on one another.

Answer

Easy Normal Difficult

(4) Which of the following is a single child widget?

A) Center

B) Row

C) Stack

D) Column

Explanation

Center widget can hold only single child with it's child property.

Answer

Easy Normal Difficult

(5) Which property of multple children widget is used to provide set of widgets?

A) children

B) multiple

C) child

D) multipleChildren

Explanation

children property is used to provide an array of widgets to the multiple children widgets.

Answer

Easy Normal Difficult

(6) Widgets in flutter applications are much more similar with.

A) HTML attributes

B) HTML methods

C) HTML tags

D) HTML properties

Explanation

In flutter application widgets are used to build the UI (User Interface) as similar to the tags of HTML.

Answer

Easy Normal Difficult

(7) Which of the following state class of flutter framework is used to refect the UI changes?

A) SatelessWidget

B) SatetFulWidget

C) StateWidget

D) ChangeWidget

Explanation

There are two types of widgets with respect to state management, The stateFulWidget is used to update the UI whenever there is require to reflect the change in data.

Answer

Easy Normal Difficult

(8) Which component of flutter architecture is used to accept events and handle these events?

A) Widget

B) GestureDetector

C) State

D) Layer

Explanation

GestureDetector is also a widget is known as invisible widget. That widget can accept different kind of inputs for particular widget (that is it's child).

Answer

Easy Normal Difficult

(9) Which of the following is not part of flutter application architecture?

A) Flutter Engine

B) OS

C) Widget

D) State Management

Explanation

All are the part of flutter application architecture except the operating system. Even applications that are build using flutter framework are run on some kind of operating system, but this is not part of flutter core architecture.

Answer

Easy Normal Difficult

(10) In flutter application each and every component is known as.

A) Class

B) Module

C) Widget

D) UI Component

Explanation

Widget is the UI component in flutter application architecture that is used to design layouts and accept input from users.

Answer

Easy Normal Difficult

FLUTTER Application Architecture MCQ