harmony 鸿蒙Universal Attributes

2022-12-13
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Universal Attributes

NOTE

The APIs of this module are supported since API version 8. Updates will be marked with a superscript to indicate their earliest API version.

Common Attributes

Common attributes are used to set component identities and appearance.

Name	Type	Default Value	Mandatory	Description
id	string	-	No	Unique ID of the component.
style	string	-	No	Style declaration of the component.
class	string	-	No	Style class of the component, which is used to refer to a style table.
ref	string	-	No	Reference information of child elements or child components, which is registered with the parent component on $refs.
disabled	boolean	false	No	Whether the component is disabled. If it is disabled, it cannot respond to user interactions.
dir	string	auto	No	Component layout mode. Available values are as follows: - rtl: right-to-left layout. - ltr: left-to-right layout. - auto: follows the system language environment.

Rendering Attributes

Rendering attributes are used to set whether a component is rendered.

Name	Type	Default Value	Description
for	Array	-	Expands the component based on the configured data list.
if	boolean	-	Whether the component is added or removed.
show	boolean	-	Whether the component is displayed or hidden.