CanvasGroup

class in UnityEngine

Inherits from:Behaviour

Implements interfaces:ICanvasRaycastFilter

Description 描述

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 属性

	alpha		Set the alpha of the group.
	blocksRaycasts		Does this group block raycasting (allow collision).
	ignoreParentGroups		Should the group ignore parent groups?
	interactable		Is the group interactable (are the elements beneath the group enabled).

Public Methods 公共方法

IsRaycastLocationValid

Returns true if the Group allows raycasts.

Inherited Members 继承成员

Properties 属性

	enabled		Enabled Behaviours are Updated, disabled Behaviours are not.
	isActiveAndEnabled		Has the Behaviour had active and enabled called?
	gameObject		The game object this component is attached to. A component is always attached to a game object.
	tag		The tag of this game object.
	transform		The Transform attached to this GameObject.
	hideFlags		Should the object be hidden, saved with the Scene or modifiable by the user?
	name		The name of the object.

Public Methods 公共方法

	BroadcastMessage		Calls the method named methodName on every MonoBehaviour in this game object or any of its children.
	CompareTag		Is this game object tagged with tag ?
	GetComponent		Returns the component of Type type if the game object has one attached, null if it doesn't.
	GetComponentInChildren		Returns the component of Type type in the GameObject or any of its children using depth first search.
	GetComponentInParent		Returns the component of Type type in the GameObject or any of its parents.
	GetComponents		Returns all components of Type type in the GameObject.
	GetComponentsInChildren		Returns all components of Type type in the GameObject or any of its children.
	GetComponentsInParent		Returns all components of Type type in the GameObject or any of its parents.
	SendMessage		Calls the method named methodName on every MonoBehaviour in this game object.
	SendMessageUpwards		Calls the method named methodName on every MonoBehaviour in this game object and on every ancestor of the behaviour.
	TryGetComponent		Gets the component of the specified type, if it exists.
	GetInstanceID		Returns the instance id of the object.
	ToString		Returns the name of the object.

Static Methods 静态方法

	Destroy		Removes a GameObject, component or asset.
	DestroyImmediate		Destroys the object obj immediately. You are strongly recommended to use Destroy instead.
	DontDestroyOnLoad		Do not destroy the target Object when loading a new Scene.
	FindObjectOfType		Returns the first active loaded object of Type type.
	FindObjectsOfType		Returns a list of all active loaded objects of Type type.
	Instantiate		Clones the object original and returns the clone.

Operators 运算符

	bool		Does 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.