Version: 2018.3 (switch to 2019.1)
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CanvasGroup

class in UnityEngine

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Inherits from:Behaviour

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Implemented in:UnityEngine.UIModule


Implements interfaces:ICanvasRaycastFilter

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Description

A Canvas placable element that can be used to modify children Alpha, Raycasting, Enabled state.

A canvas group can be used to modify the state of children elements.

An example of this would be a window which fades in over time, by modifying the alpha value of the group the children elements well be affected. The result alpha will be the multiplied result of any nested groups, multiplied with the canvas elements alpha.

Canvas Groups can also be configured to not block raycasts (anything on the group will not be considerered for graphic raycasting), and whether elements are interactable.

Properties

alphaSet the alpha of the group.
blocksRaycastsDoes this group block raycasting (allow collision).
ignoreParentGroupsShould the group ignore parent groups?
interactableIs the group interactable (are the elements beneath the group enabled).

Public Methods

IsRaycastLocationValidReturns true if the Group allows raycasts.

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.
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.
GetInstanceIDReturns the instance id of the object.
ToStringReturns the name of the GameObject.

Static Methods

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.

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