Column

The <Column> component lays out child components vertically.

NOTE

This component is supported since API version 7. Updates will be marked with a superscript to indicate their earliest API version.

Child Components

Supported

APIs

Column(value?: {space?: string | number})

Since API version 9, this API is supported in ArkTS widgets.

Parameters

Name	Type	Mandatory	Description
space	string \| number	No	Vertical spacing between two adjacent child components. Since API version 9, this parameter does not take effect when it is set to a negative number or justifyContent is set to FlexAlign.SpaceBetween, FlexAlign.SpaceAround or FlexAlign.SpaceEvenly. Default value: 0 NOTE The value can be a number greater than or equal to 0 or a string that can be converted to a number.

Attributes

In addition to the universal attributes, the following attributes are supported.

Name	Type	Description
alignItems	HorizontalAlign	Alignment mode of the child components in the horizontal direction. Default value: HorizontalAlign.Center Since API version 9, this API is supported in ArkTS widgets.
justifyContent⁸⁺	FlexAlign	Alignment mode of the child components in the vertical direction. Default value: FlexAlign.Start Since API version 9, this API is supported in ArkTS widgets.

Example

// xxx.ets
@Entry
@Component
struct ColumnExample {
  build() {
    Column() {
      // Set the vertical spacing between two adjacent child components to 5.
      Text('space').fontSize(9).fontColor(0xCCCCCC).width('90%')
      Column({ space: 5 }) {
        Column().width('100%').height(30).backgroundColor(0xAFEEEE)
        Column().width('100%').height(30).backgroundColor(0x00FFFF)
      }.width('90%').height(100).border({ width: 1 })

      // Set the alignment mode of the child components in the horizontal direction.
      Text('alignItems(Start)').fontSize(9).fontColor(0xCCCCCC).width('90%')
      Column() {
        Column().width('50%').height(30).backgroundColor(0xAFEEEE)
        Column().width('50%').height(30).backgroundColor(0x00FFFF)
      }.alignItems(HorizontalAlign.Start).width('90%').border({ width: 1 })

      Text('alignItems(End)').fontSize(9).fontColor(0xCCCCCC).width('90%')
      Column() {
        Column().width('50%').height(30).backgroundColor(0xAFEEEE)
        Column().width('50%').height(30).backgroundColor(0x00FFFF)
      }.alignItems(HorizontalAlign.End).width('90%').border({ width: 1 })

      Text('alignItems(Center)').fontSize(9).fontColor(0xCCCCCC).width('90%')
      Column() {
        Column().width('50%').height(30).backgroundColor(0xAFEEEE)
        Column().width('50%').height(30).backgroundColor(0x00FFFF)
      }.alignItems(HorizontalAlign.Center).width('90%').border({ width: 1 })
      
      // Set the alignment mode of the child components in the vertical direction.
      Text('justifyContent(Center)').fontSize(9).fontColor(0xCCCCCC).width('90%')
      Column() {
        Column().width('90%').height(30).backgroundColor(0xAFEEEE)
        Column().width('90%').height(30).backgroundColor(0x00FFFF)
      }.height(100).border({ width: 1 }).justifyContent(FlexAlign.Center)

      Text('justifyContent(End)').fontSize(9).fontColor(0xCCCCCC).width('90%')
      Column() {
        Column().width('90%').height(30).backgroundColor(0xAFEEEE)
        Column().width('90%').height(30).backgroundColor(0x00FFFF)
      }.height(100).border({ width: 1 }).justifyContent(FlexAlign.End)
    }.width('100%').padding({ top: 5 })
  }
}

Column