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 purpose of the 'DraggableAnchors' factory?

To manage click events for draggable components.

To change the color of draggable components.

To set the size of draggable components.

To define anchor points for draggable components.

None

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

To set the maximum distance a component can be dragged.

To define the minimum size of the draggable component.

To determine the speed of the dragging gesture.

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

None

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

Implementing a sliding drawer in a UI.

Creating a component that moves freely in any direction.

Designing a volume slider that snaps to specific positions.

Creating a custom horizontal scroll bar.

None

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

It adjusts the velocity of the dragging motion.

It defines whether dragging should occur horizontally or vertically.

It sets the color of the draggable component.

It determines the size of the anchor points.

None

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

The color of the draggable component.

The current drag offset along the specified axis.

The size of the draggable component.

The position of the anchor points.

None

What does the animationSpec parameter in AnchoredDraggableState control?

The size of the draggable component.

The orientation of drag gestures.

The speed of drag animations.

The threshold position.

None

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

velocityThreshold

initialValue

anchors

positionalThreshold

None

What is the initialValue parameter in AnchoredDraggableState used for?

To set the initial color of the component.

To specify the speed of the drag gesture.

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

To configure the size of the draggable area.

None

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

offsetAnimation()

gestureAnimation()

tween()

animatorMove()

None

10.

How are draggable anchor points defined in Compose?

Using the DraggableAnchors factory with floating-point values.

By specifying pixel values directly in the draggable state.

Using the anchorPoints() function.

With the gestureDetect() function.

None

11.

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

anchoredDraggable()

clickable()

pointerInput()

draggable()

None

12.

What are anchored draggable components?

Components that respond to clicks but do not support dragging.

Components that can be dragged freely anywhere on the screen.

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

Components that only respond to multi-touch gestures.

None

13.

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

By using the direction property.

By changing the velocityThreshold parameter.

By setting the reverseDirection parameter in anchoredDraggable().

By defining the movementPath property.

None

14.

Which parameter in AnchoredDraggableState allows smooth transitions between anchors?

draggablePath

smoothScroll

dragVelocity

animationSpec

None

15.

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

With the state’s requiredOffset() method.

By accessing the offset parameter directly.

Using the getOffset() function.

Through the pointerInput() function.

None

16.

What is the 'positionalThreshold' used for in AnchoredDraggableState?

To define the size of the component.

To set the starting position of the draggable component.

To determine the color of the draggable item.

To calculate the threshold point between two anchors.

None

17.

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

rememberDraggableState()

remember()

draggableState()

saveState()

None

18.

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

Reverses the component’s appearance.

Adjusts the threshold value.

Changes the direction of movement when dragging.

Reverses the orientation of the drag gesture.

None

19.

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

To determine the drag direction.

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.

None