程序包 ohos.agp.components.element

Provides elements that can be drawn on the UI.

Element is an abstract concept for drawing objects and can be used to display the background of images and controls.

从以下版本开始:

1

接口概要

接口	说明
Element.OnBoundsChangeListener	Provides a callback to listen for changes of element bounds.
Element.OnChangeListener	Provides a callback to listen for element changes.
Element.OnLayoutDirectionChangeListener	Provides a callback to listen for element layout direction changes.
Element.OnRankChangeListener	Provides a callback to listen for Element rank change.
ImageAnimationElement.ImageAnimationCallBack	Animation start and end callback

类概要

类	说明
AnimatedStateElement	Provides an Element object that can be changed based on the component state.
CropElement	Provides an Element that crops another Element based on the current rank value.
Element	An abstract class of something that can be drawn.
Element.ConstantState	An abstract class of Element used to store constant states and data shared by Elements instances.
ElementContainer	A container class of Element that contains multiple Element objects.
ElementContainer.ElementState	已过时。 Please use ElementContainer.addChildElement, ElementContainer.getChildElement, ElementContainer.getChildElementCount
ElementScatter	Parses an Element layout file.
ElementWrapper	ElementWrapper is an abstract class that allows to wrap any Element Element object.
FlexElement	Represents a FlexElement object that can flexibly display PixelMap objects.
FrameAnimationElement	Creates frame-by-frame animations using element objects.
ImageAnimationElement	Creates Image animations using element objects.
InlaidElement	Inlays an element with another element based on a specific distance or proportion from the content bounds.
LayerElement	Provides an element that manages a list of other elements.
PixelMapElement	Provides an Element object that wraps a PixelMap object.
ShadowElement	Provides an Element object that supports shadow drawing.
ShapeElement	Provides an Element instance with a color gradient, which is usually used for component backgrounds.
StateElement	Provides an Element object that can be changed based on the component state.
VectorElement	Provides an Element object that supports vector drawing.

枚举概要

枚举	说明
CropElement.Orientation	Enumerates the cropping directions.
ShapeElement.Orientation	Indicates the direction of the gradient effect relative to the element object's bounds.
ShapeElement.RadiusType	Indicates the type of the processed value for the radius.

异常错误概要

异常错误	说明
ElementScatterException	Represents an exception that is thrown if an error occurs when parsing an element.