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ScrollRect

class in UnityEngine.UI

/

Inherits from:EventSystems.UIBehaviour


Implements interfaces:IBeginDragHandler, ICanvasElement, IDragHandler, IEndDragHandler, IEventSystemHandler, IInitializePotentialDragHandler, ILayoutController, ILayoutElement, ILayoutGroup, IScrollHandler

Description

A component for making a child RectTransform scroll.

ScrollRect will not do any clipping on its own. Combined with a Mask component, it can be turned into a scroll view.

Properties

contentThe content that can be scrolled. It should be a child of the GameObject with ScrollRect on it.
decelerationRateThe rate at which movement slows down.
elasticityThe amount of elasticity to use when the content moves beyond the scroll rect.
flexibleHeightCalled by the layout system.
flexibleWidthCalled by the layout system.
horizontalShould horizontal scrolling be enabled?
horizontalNormalizedPositionThe horizontal scroll position as a value between 0 and 1, with 0 being at the left.
horizontalScrollbarOptional Scrollbar object linked to the horizontal scrolling of the ScrollRect.
horizontalScrollbarSpacingThe space between the scrollbar and the viewport.
horizontalScrollbarVisibilityThe mode of visibility for the horizontal scrollbar.
inertiaShould movement inertia be enabled?
layoutPriorityCalled by the layout system.
minHeightCalled by the layout system.
minWidthCalled by the layout system.
movementTypeThe behavior to use when the content moves beyond the scroll rect.
normalizedPositionThe scroll position as a Vector2 between (0,0) and (1,1) with (0,0) being the lower left corner.
onValueChangedCallback executed when the position of the child changes.
preferredHeightCalled by the layout system.
preferredWidthCalled by the layout system.
scrollSensitivityThe sensitivity to scroll wheel and track pad scroll events.
velocityThe current velocity of the content.
verticalShould vertical scrolling be enabled?
verticalNormalizedPositionThe vertical scroll position as a value between 0 and 1, with 0 being at the bottom.
verticalScrollbarOptional Scrollbar object linked to the vertical scrolling of the ScrollRect.
verticalScrollbarSpacingThe space between the scrollbar and the viewport.
verticalScrollbarVisibilityThe mode of visibility for the vertical scrollbar.
viewportReference to the viewport RectTransform that is the parent of the content RectTransform.

Public Methods

CalculateLayoutInputHorizontalCalled by the layout system.
CalculateLayoutInputVerticalCalled by the layout system.
GraphicUpdateCompleteSee ICanvasElement.GraphicUpdateComplete.
IsActiveSee member in base class.
LayoutCompleteSee ICanvasElement.LayoutComplete.
OnBeginDragHandling for when the content is being dragged.
OnDragHandling for when the content is dragged.
OnEndDragHandling for when the content has finished being dragged.
OnInitializePotentialDragSee: IInitializePotentialDragHandler.OnInitializePotentialDrag.
OnScrollSee IScrollHandler.OnScroll.
RebuildRebuilds the scroll rect data after initialization.
SetLayoutHorizontalCalled by the layout system.
SetLayoutVerticalCalled by the layout system.
StopMovementSets the velocity to zero on both axes so the content stops moving.

Protected Methods

OnDisableSee MonoBehaviour.OnDisable.
SetContentAnchoredPositionSets the anchored position of the content.
SetDirtyOverride to alter or add to the code that keeps the appearance of the scroll rect synced with its data.
SetDirtyCachingOverride to alter or add to the code that caches data to avoid repeated heavy operations.
SetNormalizedPositionSet the horizontal or vertical scroll position as a value between 0 and 1, with 0 being at the left or at the bottom.
UpdateBoundsCalculate the bounds the ScrollRect should be using.
UpdatePrevDataHelper function to update the previous data fields on a ScrollRect. Call this before you change data in the ScrollRect.

Inherited Members

Properties

enabledEnabled Behaviours are Updated, disabled Behaviours are not.
isActiveAndEnabledHas the Behaviour had active and enabled called?
gameObjectThe game object this component is attached to. A component is always attached to a game object.
tagThe tag of this game object.
transformThe Transform attached to this GameObject.
runInEditModeAllow a specific instance of a MonoBehaviour to run in edit mode (only available in the editor).
useGUILayoutDisabling this lets you skip the GUI layout phase.
hideFlagsShould the object be hidden, saved with the Scene or modifiable by the user?
nameThe name of the object.

Public Methods

BroadcastMessageCalls the method named methodName on every MonoBehaviour in this game object or any of its children.
CompareTagIs this game object tagged with tag ?
GetComponentReturns the component of Type type if the game object has one attached, null if it doesn't.
GetComponentInChildrenReturns the component of Type type in the GameObject or any of its children using depth first search.
GetComponentInParentReturns the component of Type type in the GameObject or any of its parents.
GetComponentsReturns all components of Type type in the GameObject.
GetComponentsInChildrenReturns all components of Type type in the GameObject or any of its children.
GetComponentsInParentReturns all components of Type type in the GameObject or any of its parents.
SendMessageCalls the method named methodName on every MonoBehaviour in this game object.
SendMessageUpwardsCalls the method named methodName on every MonoBehaviour in this game object and on every ancestor of the behaviour.
CancelInvokeCancels all Invoke calls on this MonoBehaviour.
InvokeInvokes the method methodName in time seconds.
InvokeRepeatingInvokes the method methodName in time seconds, then repeatedly every repeatRate seconds.
IsInvokingIs any invoke on methodName pending?
StartCoroutineStarts a coroutine.
StopAllCoroutinesStops all coroutines running on this behaviour.
StopCoroutineStops the first coroutine named methodName, or the coroutine stored in routine running on this behaviour.
GetInstanceIDReturns the instance id of the object.
ToStringReturns the name of the GameObject.
IsDestroyedReturns true if the native representation of the behaviour has been destroyed.

Protected Methods

AwakeSee MonoBehaviour.Awake.
OnBeforeTransformParentChangedSee MonoBehaviour.OnBeforeTransformParentChanged.
OnCanvasGroupChangedSee MonoBehaviour.OnCanvasGroupChanged.
OnCanvasHierarchyChangedCalled when the state of the parent Canvas is changed.
OnDestroySee MonoBehaviour.OnDestroy.
OnDidApplyAnimationPropertiesSee LayoutGroup.OnDidApplyAnimationProperties.
OnEnableSee MonoBehaviour.OnEnable.
OnRectTransformDimensionsChangeThis callback is called if an associated RectTransform has its dimensions changed.
OnTransformParentChangedSee MonoBehaviour.OnRectTransformParentChanged.
OnValidateSee MonoBehaviour.OnValidate.
ResetSee MonoBehaviour.Reset.
StartSee MonoBehaviour.Start.

Static Methods

printLogs message to the Unity Console (identical to Debug.Log).
DestroyRemoves a gameobject, component or asset.
DestroyImmediateDestroys the object obj immediately. You are strongly recommended to use Destroy instead.
DontDestroyOnLoadDo not destroy the target Object when loading a new Scene.
FindObjectOfTypeReturns the first active loaded object of Type type.
FindObjectsOfTypeReturns a list of all active loaded objects of Type type.
InstantiateClones the object original and returns the clone.

Operators

boolDoes the object exist?
operator !=Compares if two objects refer to a different object.
operator ==Compares two object references to see if they refer to the same object.

Messages

AwakeAwake is called when the script instance is being loaded.
FixedUpdateFrame-rate independent MonoBehaviour.FixedUpdate message for physics calculations.
LateUpdateLateUpdate is called every frame, if the Behaviour is enabled.
OnAnimatorIKCallback for setting up animation IK (inverse kinematics).
OnAnimatorMoveCallback for processing animation movements for modifying root motion.
OnApplicationFocusSent to all GameObjects when the player gets or loses focus.
OnApplicationPauseSent to all GameObjects when the application pauses.
OnApplicationQuitSent to all game objects before the application quits.
OnAudioFilterReadIf OnAudioFilterRead is implemented, Unity will insert a custom filter into the audio DSP chain.
OnBecameInvisibleOnBecameInvisible is called when the renderer is no longer visible by any camera.
OnBecameVisibleOnBecameVisible is called when the renderer became visible by any camera.
OnCollisionEnterOnCollisionEnter is called when this collider/rigidbody has begun touching another rigidbody/collider.
OnCollisionEnter2DSent when an incoming collider makes contact with this object's collider (2D physics only).
OnCollisionExitOnCollisionExit is called when this collider/rigidbody has stopped touching another rigidbody/collider.
OnCollisionExit2DSent when a collider on another object stops touching this object's collider (2D physics only).
OnCollisionStay:ref::OnCollisionStay is called once per frame for every collider/rigidbody that is touching rigidbody/collider.
OnCollisionStay2DSent each frame where a collider on another object is touching this object's collider (2D physics only).
OnConnectedToServerCalled on the client when you have successfully connected to a server.
OnControllerColliderHitOnControllerColliderHit is called when the controller hits a collider while performing a Move.
OnDestroyDestroying the attached Behaviour will result in the game or Scene receiving OnDestroy.
OnDisconnectedFromServerCalled on the client when the connection was lost or you disconnected from the server.
OnDrawGizmosImplement OnDrawGizmos if you want to draw gizmos that are also pickable and always drawn.
OnDrawGizmosSelectedImplement OnDrawGizmosSelected to draw a gizmo if the object is selected.
OnEnableThis function is called when the object becomes enabled and active.
OnFailedToConnectCalled on the client when a connection attempt fails for some reason.
OnFailedToConnectToMasterServerCalled on clients or servers when there is a problem connecting to the MasterServer.
OnGUIOnGUI is called for rendering and handling GUI events.
OnJointBreakCalled when a joint attached to the same game object broke.
OnJointBreak2DCalled when a Joint2D attached to the same game object breaks.
OnMasterServerEventCalled on clients or servers when reporting events from the MasterServer.
OnMouseDown OnMouseDown is called when the user has pressed the mouse button while over the GUIElement or Collider.
OnMouseDragOnMouseDrag is called when the user has clicked on a GUIElement or Collider and is still holding down the mouse.
OnMouseEnterCalled when the mouse enters the GUIElement or Collider.
OnMouseExitCalled when the mouse is not any longer over the GUIElement or Collider.
OnMouseOverCalled every frame while the mouse is over the GUIElement or Collider.
OnMouseUpOnMouseUp is called when the user has released the mouse button.
OnMouseUpAsButtonOnMouseUpAsButton is only called when the mouse is released over the same GUIElement or Collider as it was pressed.
OnNetworkInstantiateCalled on objects which have been network instantiated with Network.Instantiate.
OnParticleCollisionOnParticleCollision is called when a particle hits a Collider.
OnParticleSystemStoppedOnParticleSystemStopped is called when all particles in the system have died, and no new particles will be born. New particles cease to be created either after Stop is called, or when the duration property of a non-looping system has been exceeded.
OnParticleTriggerOnParticleTrigger is called when any particles in a Particle System meet the conditions in the trigger module.
OnPlayerConnectedCalled on the server whenever a new player has successfully connected.
OnPlayerDisconnectedCalled on the server whenever a player disconnected from the server.
OnPostRenderOnPostRender is called after a camera finished rendering the Scene.
OnPreCullOnPreCull is called before a camera culls the Scene.
OnPreRenderOnPreRender is called before a camera starts rendering the Scene.
OnRenderImageOnRenderImage is called after all rendering is complete to render image.
OnRenderObjectOnRenderObject is called after camera has rendered the Scene.
OnSerializeNetworkViewUsed to customize synchronization of variables in a script watched by a network view.
OnServerInitializedCalled on the server whenever a Network.InitializeServer was invoked and has completed.
OnTransformChildrenChangedThis function is called when the list of children of the transform of the GameObject has changed.
OnTransformParentChangedThis function is called when the parent property of the transform of the GameObject has changed.
OnTriggerEnter OnTriggerEnter is called when the GameObject collides with another GameObject.
OnTriggerEnter2DSent when another object enters a trigger collider attached to this object (2D physics only).
OnTriggerExitOnTriggerExit is called when the Collider other has stopped touching the trigger.
OnTriggerExit2DSent when another object leaves a trigger collider attached to this object (2D physics only).
OnTriggerStayOnTriggerStay is called once per physics update for every Collider other that is touching the trigger.
OnTriggerStay2DSent each frame where another object is within a trigger collider attached to this object (2D physics only).
OnValidateThis function is called when the script is loaded or a value is changed in the inspector (Called in the editor only).
OnWillRenderObjectOnWillRenderObject is called for each camera if the object is visible and not a UI element.
ResetReset to default values.
StartStart is called on the frame when a script is enabled just before any of the Update methods are called the first time.
UpdateUpdate is called every frame, if the MonoBehaviour is enabled.