harmony 鸿蒙Border

2022-08-09
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Border

The border attributes are used to set border styles for components.

NOTE

The APIs of this module are supported since API version 7. Updates will be marked with a superscript to indicate their earliest API version.

The border of a component is displayed above the content of its child components since API version 9.

Attributes

Name	Type	Description
border	{ width?: Length \|EdgeWidths⁹⁺, color?: ResourceColor \|EdgeColors⁹⁺, radius?: Length \|BorderRadiuses⁹⁺, style?: BorderStyle \|EdgeStyles⁹⁺ }	Unified border style. - width: border width. - color: border color. - radius: radius of the rounded corner of the border. - style: border style. Since API version 9, this API is supported in ArkTS widgets.
borderStyle	BorderStyle \|EdgeStyles⁹⁺	Border style. Default value: BorderStyle.Solid Since API version 9, this API is supported in ArkTS widgets.
borderWidth	Length \|EdgeWidths⁹⁺	Border width. The percentage format is not supported. Since API version 9, this API is supported in ArkTS widgets.
borderColor	ResourceColor \|EdgeColors⁹⁺	Border color. Default value: Color.Black Since API version 9, this API is supported in ArkTS widgets.
borderRadius	Length \|BorderRadiuses⁹⁺	Border radius. The percentage format is not supported. Since API version 9, this API is supported in ArkTS widgets.

EdgeWidths⁹⁺

To reference this object, at least one parameter must be passed.

Name	Type	Mandatory	Description
left	Length	No	Width of the left border.
right	Length	No	Width of the right border.
top	Length	No	Width of the top border.
bottom	Length	No	Width of the bottom border.

EdgeColors⁹⁺

To reference this object, at least one parameter must be passed.

Name	Type	Mandatory	Description
left	ResourceColor	No	Color of the left border.
right	ResourceColor	No	Color of the right border.
top	ResourceColor	No	Color of the top border.
bottom	ResourceColor	No	Color of the bottom border.

BorderRadiuses⁹⁺

To reference this object, at least one parameter must be passed.

Name	Type	Mandatory	Description
topLeft	Length	No	Radius of the upper-left rounded corner.
topRight	Length	No	Radius of the upper-right rounded corner.
bottomLeft	Length	No	Radius of the lower-left rounded corner.
bottomRight	Length	No	Radius of the lower-right rounded corner.

EdgeStyles⁹⁺

To reference this object, at least one parameter must be passed.

Name	Type	Mandatory	Description
left	BorderStyle	No	Style of the left border.
right	BorderStyle	No	Style of the right border.
top	BorderStyle	No	Style of the top border.
bottom	BorderStyle	No	Style of the bottom border.

Example

// xxx.ets
@Entry
@Component
struct BorderExample {
  build() {
    Column() {
      Flex({ justifyContent: FlexAlign.SpaceAround, alignItems: ItemAlign.Center }) {
        // Dashed border
        Text('dashed')
          .borderStyle(BorderStyle.Dashed).borderWidth(5).borderColor(0xAFEEEE).borderRadius(10)
          .width(120).height(120).textAlign(TextAlign.Center).fontSize(16)
        // Dotted border
        Text('dotted')
          .border({ width: 5, color: 0x317AF7, radius: 10, style: BorderStyle.Dotted })
          .width(120).height(120).textAlign(TextAlign.Center).fontSize(16)
      }.width('100%').height(150)

      Text('.border')
        .fontSize(50)
        .width(300)
        .height(300)
        .border({
          width: { left: 3, right: 6, top: 10, bottom: 15 },
          color: { left: '#e3bbbb', right: Color.Blue, top: Color.Red, bottom: Color.Green },
          radius: { topLeft: 10, topRight: 20, bottomLeft: 40, bottomRight: 80 },
          style: {
            left: BorderStyle.Dotted,
            right: BorderStyle.Dotted,
            top: BorderStyle.Solid,
            bottom: BorderStyle.Dashed
          }
        }).textAlign(TextAlign.Center)
    }
  }
}

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