harmony 鸿蒙Universal Attributes
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. |
NOTE
Do not set styles in attribute fields.
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