Compose Draggable Anchor Quiz

Welcome to the “Working with Anchored Draggable Components” quiz! This quiz is designed to test your understanding of implementing anchored draggable components in Jetpack Compose. You’ll encounter questions that cover key concepts, including draggable states, anchor points, thresholds, and how to use the anchoredDraggable modifier. Through these questions, you’ll review essential techniques for creating interactive components that smoothly transition between defined positions in your Android apps.

What is the 'positionalThreshold' used for in AnchoredDraggableState?

To define the size of the component.

To calculate the threshold point between two anchors.

To determine the color of the draggable item.

To set the starting position of the draggable component.

None

How is the current drag offset obtained in Compose's draggable components?

Through the pointerInput() function.

By accessing the offset parameter directly.

Using the getOffset() function.

With the state’s requiredOffset() method.

None

Which parameter in AnchoredDraggableState allows smooth transitions between anchors?

smoothScroll

draggablePath

animationSpec

dragVelocity

None

What does the 'reverseDirection' parameter in anchoredDraggable() do?

Changes the direction of movement when dragging.

Reverses the orientation of the drag gesture.

Adjusts the threshold value.

Reverses the component’s appearance.

None

What does the AnchoredDraggableState's 'requireOffset()' method return?

The current drag offset along the specified axis.

The size of the draggable component.

The position of the anchor points.

The color of the draggable component.

None

What are anchored draggable components?

Components that respond to clicks but do not support dragging.

Components that can be dragged along a path with fixed anchor points.

Components that only respond to multi-touch gestures.

Components that can be dragged freely anywhere on the screen.

None

How are draggable anchor points defined in Compose?

Using the anchorPoints() function.

By specifying pixel values directly in the draggable state.

With the gestureDetect() function.

Using the DraggableAnchors factory with floating-point values.

None

Which method is used to animate the movement of a draggable component?

gestureAnimation()

animatorMove()

tween()

offsetAnimation()

None

What is the purpose of the AnchoredDraggableState's 'velocityThreshold'?

To limit the number of draggable components.

To define the speed required to transition to a different anchor state.

To set the color of the draggable item.

To determine the drag direction.

None

10.

What is the purpose of the 'DraggableAnchors' factory?

To change the color of draggable components.

To set the size of draggable components.

To manage click events for draggable components.

To define anchor points for draggable components.

None

11.

Which of the following is NOT a use case for anchored draggable components?

Creating a custom horizontal scroll bar.

Designing a volume slider that snaps to specific positions.

Implementing a sliding drawer in a UI.

Creating a component that moves freely in any direction.

None

12.

Which of the following parameters is optional when creating an AnchoredDraggableState?

positionalThreshold

initialValue

anchors

velocityThreshold

None

13.

What is the purpose of the threshold in anchored draggable components?

To define the minimum size of the draggable component.

To decide whether the component should return to the starting point or move to the destination anchor.

To set the maximum distance a component can be dragged.

To determine the speed of the dragging gesture.

None

14.

What is the role of the 'orientation' parameter in anchoredDraggable()?

It determines the size of the anchor points.

It defines whether dragging should occur horizontally or vertically.

It sets the color of the draggable component.

It adjusts the velocity of the dragging motion.

None

15.

How can you control the direction in which a draggable component moves?

By changing the velocityThreshold parameter.

By using the direction property.

By defining the movementPath property.

By setting the reverseDirection parameter in anchoredDraggable().

None

16.

What function is used to store the state of draggable components during recomposition?

draggableState()

rememberDraggableState()

saveState()

remember()

None

17.

Which modifier is used to detect drag gestures in anchored draggable components?

draggable()

clickable()

anchoredDraggable()

pointerInput()

None

18.

What does the animationSpec parameter in AnchoredDraggableState control?

The threshold position.

The size of the draggable component.

The speed of drag animations.

The orientation of drag gestures.

None

19.

What is the initialValue parameter in AnchoredDraggableState used for?

To specify the speed of the drag gesture.

To define the initial anchor position where the draggable component will start.

To set the initial color of the component.

To configure the size of the draggable area.

None