TabContent

The <TabContent> component is used only in the <Tabs> component. It corresponds to the content view of a switched tab page.

NOTE

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

Child Components

This component supports only one child component.

NOTE

Built-in components and custom components are allowed, with support for (if/else, ForEach, and LazyForEach) rendering control.

APIs

TabContent()

Attributes

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

NOTE

• The <TabContent> component does not support setting of the common width attribute. By default, its width is the same as that of the parent <Tabs> component.
• The <TabContent> component does not support setting of the universal height attribute. Its height is determined by the height of the parent <Tabs> component and the <TabBar> component.
• If the vertical attribute is false, the width and height descriptions are swapped in the preceding two restrictions.
• <TabContent> does not support page scrolling. If page scrolling is required, consider nesting a list.

SubTabBarStyle⁹⁺

Implements the subtab style.

constructor

constructor(content: string|Resource)

Constructor used to create a SubTabBarStyle instance.

Parameters

of¹⁰⁺

static of(content: ResourceStr)

Static constructor used to create a SubTabBarStyle instance.

Parameters

Attributes

The following attributes are supported.

IndicatorStyle¹⁰⁺

SelectedMode¹⁰⁺

BoardStyle¹⁰⁺

LabelStyle¹⁰⁺

BottomTabBarStyle⁹⁺

Implements the bottom and side tab style.

constructor

constructor(icon: string|Resource, content: string|Resource)

A constructor used to create a BottomTabBarStyle instance.

Parameters

of¹⁰⁺

static of(icon: ResourceStr, text: ResourceStr) Static constructor used to create a BottomTabBarStyle instance.

Parameters

Attributes

The following attributes are supported.

LayoutMode¹⁰⁺

Example

Example 1

// xxx.ets
@Entry
@Component
struct TabContentExample {
  @State fontColor: string = '#182431'
  @State selectedFontColor: string = '#007DFF'
  @State currentIndex: number = 0
  private controller: TabsController = new TabsController()

  @Builder TabBuilder(index: number) {
    Column() {
      Image(this.currentIndex === index ? '/common/public_icon_on.svg' : '/common/public_icon_off.svg')
        .width(24)
        .height(24)
        .margin({ bottom: 4 })
        .objectFit(ImageFit.Contain)
      Text(`Tab${index + 1}`)
        .fontColor(this.currentIndex === index ? this.selectedFontColor : this.fontColor)
        .fontSize(10)
        .fontWeight(500)
        .lineHeight(14)
    }.width('100%')
  }

  build() {
    Column() {
      Tabs({ barPosition: BarPosition.End, controller: this.controller }) {
        TabContent() {
          Column() {
            Text('Tab1')
              .fontSize(36)
              .fontColor('#182431')
              .fontWeight(500)
              .opacity(0.4)
              .margin({ top: 30, bottom: 56.5 })
            Divider()
              .strokeWidth(0.5)
              .color('#182431')
              .opacity(0.05)
          }.width('100%')
        }.tabBar(this.TabBuilder(0))

        TabContent() {
          Column() {
            Text('Tab2')
              .fontSize(36)
              .fontColor('#182431')
              .fontWeight(500)
              .opacity(0.4)
              .margin({ top: 30, bottom: 56.5 })
            Divider()
              .strokeWidth(0.5)
              .color('#182431')
              .opacity(0.05)
          }.width('100%')
        }.tabBar(this.TabBuilder(1))

        TabContent() {
          Column() {
            Text('Tab3')
              .fontSize(36)
              .fontColor('#182431')
              .fontWeight(500)
              .opacity(0.4)
              .margin({ top: 30, bottom: 56.5 })
            Divider()
              .strokeWidth(0.5)
              .color('#182431')
              .opacity(0.05)
          }.width('100%')
        }.tabBar(this.TabBuilder(2))

        TabContent() {
          Column() {
            Text('Tab4')
              .fontSize(36)
              .fontColor('#182431')
              .fontWeight(500)
              .opacity(0.4)
              .margin({ top: 30, bottom: 56.5 })
            Divider()
              .strokeWidth(0.5)
              .color('#182431')
              .opacity(0.05)
          }.width('100%')
        }.tabBar(this.TabBuilder(3))
      }
      .vertical(false)
      .barHeight(56)
      .onChange((index: number) => {
        this.currentIndex = index
      })
      .width(360)
      .height(190)
      .backgroundColor('#F1F3F5')
      .margin({ top: 38 })
    }.width('100%')
  }
}

Example 2

// xxx.ets
@Entry
@Component
struct TabContentExample {
  @State fontColor: string = '#182431'
  @State selectedFontColor: string = '#007DFF'
  @State currentIndex: number = 0
  private controller: TabsController = new TabsController()

  @Builder TabBuilder(index: number) {
    Column() {
      Image(this.currentIndex === index ? '/common/public_icon_on.svg' : '/common/public_icon_off.svg')
        .width(24)
        .height(24)
        .margin({ bottom: 4 })
        .objectFit(ImageFit.Contain)
      Text('Tab')
        .fontColor(this.currentIndex === index ? this.selectedFontColor : this.fontColor)
        .fontSize(10)
        .fontWeight(500)
        .lineHeight(14)
    }.width('100%').height('100%').justifyContent(FlexAlign.Center)
  }

  build() {
    Column() {
      Tabs({ barPosition: BarPosition.Start, controller: this.controller }) {
        TabContent()
          .tabBar(this.TabBuilder(0))
        TabContent()
          .tabBar(this.TabBuilder(1))
        TabContent()
          .tabBar(this.TabBuilder(2))
        TabContent()
          .tabBar(this.TabBuilder(3))
      }
      .vertical(true)
      .barWidth(96)
      .barHeight(414)
      .onChange((index: number) => {
        this.currentIndex = index
      })
      .width(96)
      .height(414)
      .backgroundColor('#F1F3F5')
      .margin({ top: 52 })
    }.width('100%')
  }
}

Example 3

// xxx.ets
@Entry
@Component
struct TabBarStyleExample {
  build() {
    Column({ space: 5 }) {
      Text ("Subtab Style")
      Column() {
        Tabs({ barPosition: BarPosition.Start }) {
          TabContent() {
            Column().width('100%').height('100%').backgroundColor(Color.Pink)
          }.tabBar(new SubTabBarStyle('Pink'))

          TabContent() {
            Column().width('100%').height('100%').backgroundColor(Color.Yellow)
          }.tabBar(new SubTabBarStyle('Yellow'))

          TabContent() {
            Column().width('100%').height('100%').backgroundColor(Color.Blue)
          }.tabBar(new SubTabBarStyle('Blue'))

          TabContent() {
            Column().width('100%').height('100%').backgroundColor(Color.Green)
          }.tabBar(new SubTabBarStyle('Green'))
        }
        .vertical(false)
        .scrollable(true)
        .barMode(BarMode.Fixed)
        .onChange((index: number) => {
          console.info(index.toString())
        })
        .width('100%')
        .backgroundColor(0xF1F3F5)
      }.width('100%').height(200)
      Text ("Bottom Tab Style")
      Column() {
        Tabs({ barPosition: BarPosition.End }) {
          TabContent() {
            Column().width('100%').height('100%').backgroundColor(Color.Pink)
          }.tabBar(new BottomTabBarStyle($r('sys.media.ohos_app_icon'), 'pink'))

          TabContent() {
            Column().width('100%').height('100%').backgroundColor(Color.Yellow)
          }.tabBar(new BottomTabBarStyle($r('sys.media.ohos_app_icon'), 'Yellow'))

          TabContent() {
            Column().width('100%').height('100%').backgroundColor(Color.Blue)
          }.tabBar(new BottomTabBarStyle($r('sys.media.ohos_app_icon'), 'Blue'))

          TabContent() {
            Column().width('100%').height('100%').backgroundColor(Color.Green)
          }.tabBar(new BottomTabBarStyle($r('sys.media.ohos_app_icon'), 'Green'))
        }
        .vertical(false)
        .scrollable(true)
        .barMode(BarMode.Fixed)
        .onChange((index: number) => {
          console.info(index.toString())
        })
        .width('100%')
        .backgroundColor(0xF1F3F5)
      }.width('100%').height(200)
      Text ("Side Tab Style")
      Column() {
        Tabs({ barPosition: BarPosition.Start }) {
          TabContent() {
            Column().width('100%').height('100%').backgroundColor(Color.Pink)
          }.tabBar(new BottomTabBarStyle($r('sys.media.ohos_app_icon'), 'pink'))

          TabContent() {
            Column().width('100%').height('100%').backgroundColor(Color.Yellow)
          }.tabBar(new BottomTabBarStyle($r('sys.media.ohos_app_icon'), 'Yellow'))

          TabContent() {
            Column().width('100%').height('100%').backgroundColor(Color.Blue)
          }.tabBar(new BottomTabBarStyle($r('sys.media.ohos_app_icon'), 'Blue'))

          TabContent() {
            Column().width('100%').height('100%').backgroundColor(Color.Green)
          }.tabBar(new BottomTabBarStyle($r('sys.media.ohos_app_icon'), 'Green'))
        }
        .vertical(true).scrollable(true).barMode(BarMode.Fixed)
        .onChange((index: number) => {
          console.info(index.toString())
        })
        .width('100%')
        .backgroundColor(0xF1F3F5)
      }.width('100%').height(400)
    }
  }
}

Example 4

// xxx.ets
@Entry
@Component
struct TabsAttr {
  private controller: TabsController = new TabsController()
  @State indicatorColor: Color = Color.Blue;
  @State indicatorWidth: number = 40;
  @State indicatorHeight: number = 10;
  @State indicatorBorderRadius: number = 5;
  @State indicatorSpace: number = 10;
  @State subTabBorderRadius: number = 20;
  @State selectedMode: SelectedMode = SelectedMode.INDICATOR;
  private colorFlag: boolean = true;
  private widthFlag: boolean = true;
  private heightFlag: boolean = true;
  private borderFlag: boolean = true;
  private spaceFlag: boolean = true;

  build() {
    Column() {
      Button ("Change Indicator Color").width ('100%').margin ({ bottom:'12vp' })
        .onClick((event?: ClickEvent) => {
          // Animation configuration for the width and height attributes of the <Button> component
          if (this.colorFlag) {
            animateTo({
              duration: 1000, // Animation duration.
              curve: Curve.Linear, // Animation curve.
              delay: 200, // Animation delay.
              iterations: 1, // Number of playback times.
              playMode: PlayMode.Normal, // Animation playback mode.
              onFinish: () => {
                console.info('play end')
              }
            }, () => {
              this.indicatorColor = Color.Red
            })
          } else {
            animateTo({
              duration: 1000, // Animation duration.
              curve: Curve.Linear, // Animation curve.
              delay: 200, // Animation delay.
              iterations: 1, // Number of playback times.
              playMode: PlayMode.Normal, // Animation playback mode.
              onFinish: () => {
                console.info('play end')
              }
            }, () => {
              this.indicatorColor = Color.Yellow
            })
          }
          this.colorFlag = !this.colorFlag
        })
      Button("Change Indicator Height").width('100%').margin({ bottom: '12vp' })
        .onClick((event?: ClickEvent) => {
          // Animation configuration for the width and height attributes of the <Button> component
          if (this.heightFlag) {
            animateTo({
              duration: 1000, // Animation duration.
              curve: Curve.Linear, // Animation curve.
              delay: 200, // Animation delay.
              iterations: 1, // Number of playback times.
              playMode: PlayMode.Normal, // Animation playback mode.
              onFinish: () => {
                console.info('play end')
              }
            }, () => {
              this.indicatorHeight = 20
            })
          } else {
            animateTo({
              duration: 1000, // Animation duration.
              curve: Curve.Linear, // Animation curve.
              delay: 200, // Animation delay.
              iterations: 1, // Number of playback times.
              playMode: PlayMode.Normal, // Animation playback mode.
              onFinish: () => {
                console.info('play end')
              }
            }, () => {
              this.indicatorHeight = 10
            })
          }
          this.heightFlag = !this.heightFlag
        })
      Button("Change Indicator Width").width('100%').margin({ bottom: '12vp' })
        .onClick((event?: ClickEvent) => {
          // Animation configuration for the width and height attributes of the <Button> component
          if (this.widthFlag) {
            animateTo({
              duration: 1000, // Animation duration.
              curve: Curve.Linear, // Animation curve.
              delay: 200, // Animation delay.
              iterations: 1, // Number of playback times.
              playMode: PlayMode.Normal, // Animation playback mode.
              onFinish: () => {
                console.info('play end')
              }
            }, () => {
              this.indicatorWidth = 30
            })
          } else {
            animateTo({
              duration: 1000, // Animation duration.
              curve: Curve.Linear, // Animation curve.
              delay: 200, // Animation delay.
              iterations: 1, // Number of playback times.
              playMode: PlayMode.Normal, // Animation playback mode.
              onFinish: () => {
                console.info('play end')
              }
            }, () => {
              this.indicatorWidth = 50
            })
          }
          this.widthFlag = !this.widthFlag
        })
      Button ("Change Indicator Corner Radius").width ('100%').margin ({ bottom:'12vp' })
        .onClick((event?: ClickEvent) => {
          // Animation configuration for the width and height attributes of the <Button> component
          if (this.borderFlag) {
            animateTo({
              duration: 1000, // Animation duration.
              curve: Curve.Linear, // Animation curve.
              delay: 200, // Animation delay.
              iterations: 1, // Number of playback times.
              playMode: PlayMode.Normal, // Animation playback mode.
              onFinish: () => {
                console.info('play end')
              }
            }, () => {
              this.indicatorBorderRadius = 0
            })
          } else {
            animateTo({
              duration: 1000, // Animation duration.
              curve: Curve.Linear, // Animation curve.
              delay: 200, // Animation delay.
              iterations: 1, // Number of playback times.
              playMode: PlayMode.Normal, // Animation playback mode.
              onFinish: () => {
                console.info('play end')
              }
            }, () => {
              this.indicatorBorderRadius = 5
            })
          }
          this.borderFlag = !this.borderFlag
        })
      Button ("Change Indicator Spacing").width ('100%').margin ({ bottom:'12vp' })
        .onClick((event?: ClickEvent) => {
          // Animation configuration for the width and height attributes of the <Button> component
          if (this.spaceFlag) {
            animateTo({
              duration: 1000, // Animation duration.
              curve: Curve.Linear, // Animation curve.
              delay: 200, // Animation delay.
              iterations: 1, // Number of playback times.
              playMode: PlayMode.Normal, // Animation playback mode.
              onFinish: () => {
                console.info('play end')
              }
            }, () => {
              this.indicatorSpace = 20
            })
          } else {
            animateTo({
              duration: 1000, // Animation duration.
              curve: Curve.Linear, // Animation curve.
              delay: 200, // Animation delay.
              iterations: 1, // Number of playback times.
              playMode: PlayMode.Normal, // Animation playback mode.
              onFinish: () => {
                console.info('play end')
              }
            }, () => {
              this.indicatorSpace = 10
            })
          }
          this.spaceFlag = !this.spaceFlag
        })
      Tabs({ barPosition: BarPosition.End, controller: this.controller }) {
        TabContent() {
          Column().width('100%').height('100%').backgroundColor(Color.Pink).borderRadius('12vp')
        }.tabBar(SubTabBarStyle.of('pink')
          .indicator({
            color: this.indicatorColor, // Indicator color.
            height: this.indicatorHeight, // Indicator height.
            width: this.indicatorWidth, // Indicator width.
            borderRadius: this.indicatorBorderRadius, // Rounded corner radius of the indicator.
            marginTop: this.indicatorSpace // Spacing between the indicator and text.
          })
          .selectedMode(this.selectedMode)
          .board({ borderRadius: this.subTabBorderRadius })
          .labelStyle({})
        )

        TabContent() {
          Column().width('100%').height('100%').backgroundColor(Color.Yellow).borderRadius('12vp')
        }.tabBar('yellow')

        TabContent() {
          Column().width('100%').height('100%').backgroundColor(Color.Blue).borderRadius('12vp')
        }.tabBar('blue')

        TabContent() {
          Column().width('100%').height('100%').backgroundColor(Color.Green).borderRadius('12vp')
        }.tabBar('green')

        TabContent() {
          Column().width('100%').height('100%').backgroundColor(Color.Gray).borderRadius('12vp')
        }.tabBar('gray')

        TabContent() {
          Column().width('100%').height('100%').backgroundColor(Color.Orange).borderRadius('12vp')
        }.tabBar('orange')
      }
      .vertical(false)
      .scrollable(true)
      .barMode(BarMode.Scrollable)
      .barHeight(140)
      .animationDuration(400)
      .onChange((index: number) => {
        console.info(index.toString())
      })
      .backgroundColor(0xF5F5F5)
      .height(320)
    }.width('100%').height(250).padding({ top: '24vp', left: '24vp', right: '24vp' })
  }
}

Example 5

// xxx.ets
@Entry
@Component
struct TabsTextOverflow {
  @State message: string = 'Hello World'
  private controller: TabsController = new TabsController()
  @State subTabOverflowOpaque: boolean = true;
  build() {
    Column() {
      Tabs({ barPosition: BarPosition.Start, controller: this.controller }) {
        TabContent() {
          Column(){
            Text('Use an ellipsis').fontSize(30).fontColor(0xFF000000)
          }.width('100%').height('100%').backgroundColor(Color.Pink)
        }.tabBar (SubTabBarStyle.of ('Start [Use an ellipsis] End')
          .labelStyle({ overflow: TextOverflow.Ellipsis, maxLines: 1, minFontSize: 10, heightAdaptivePolicy: TextHeightAdaptivePolicy.MAX_LINES_FIRST,
            font: { size: 20 } }))
        TabContent() {
          Column()
          {
            Text('Scale down and then clip').fontSize(30).fontColor(0xFF000000)
          }.width('100%').height('100%').backgroundColor(Color.Pink)
        }.tabBar (SubTabBarStyle.of ('Start [Scale down and then clip; Scale down and then clip] End')
          .labelStyle({ overflow: TextOverflow.Clip, maxLines: 1, minFontSize: 15, maxFontSize: 15, heightAdaptivePolicy: TextHeightAdaptivePolicy.MIN_FONT_SIZE_FIRST,
            font: { size: 20 } }))
        TabContent() {
          Column(){
            Text('Scale down, start a new line, and then clip').fontSize(30).fontColor(0xFF000000)
          }.width('100%').height('100%').backgroundColor(Color.Pink)
        }.tabBar (SubTabBarStyle.of ('Start [Scale down, start a new line, and then clip; Scale down, start a new line, and then clip] End')
          .labelStyle({ overflow: TextOverflow.Clip, maxLines: 2, minFontSize: 15, maxFontSize: 15, heightAdaptivePolicy: TextHeightAdaptivePolicy.MIN_FONT_SIZE_FIRST,
            font: { size: 20 } }))
        TabContent() {
          Column() {
            Text('Start a new line').fontSize(30).fontColor(0xFF000000)
          }
          .width('100%').height('100%').backgroundColor(Color.Pink)
        }.tabBar(SubTabBarStyle.of('Start [Start a new line; Start a new line; Start a new line; Start a new line; Start a new line] End')
          .labelStyle({ overflow: TextOverflow.Clip, maxLines: 10, minFontSize: 10, heightAdaptivePolicy: TextHeightAdaptivePolicy.MAX_LINES_FIRST,
            font: { size: 20 } }))
      }
      .vertical(true).scrollable(true)
      .barMode(BarMode.Fixed)
      .barHeight(720)
      .barWidth(200).animationDuration(400)
      .onChange((index: number) => {
        console.info(index.toString())
      })
      .height('100%').width('100%')
    }
    .height('100%')
  }
}

Example 6

// xxx.ets
@Entry
@Component
struct TabContentExample6 {
  private controller: TabsController = new TabsController()
  @State text: string = "2"
  @State tabPadding: number = 0;
  @State symmetricExtensible: boolean = false;
  @State layoutMode: LayoutMode = LayoutMode.VERTICAL;
  @State verticalAlign: VerticalAlign = VerticalAlign.Center;

  build() {
    Column() {
      Row() {
        Button("padding+10 " + this.tabPadding)
          .width('47%')
          .height(50)
          .margin({ top: 5 })
          .onClick((event?: ClickEvent) => {
            this.tabPadding += 10
          })
          .margin({ right: '6%', bottom: '12vp' })
        Button("padding-10 " + this.tabPadding)
          .width('47%')
          .height(50)
          .margin({ top: 5 })
          .onClick((event?: ClickEvent) => {
            this.tabPadding -= 10
          })
          .margin({ bottom: '12vp' })
      }

      Row() {
        Button ("Add Text")
          .width('47%')
          .height(50)
          .margin({ top: 5 })
          .onClick((event?: ClickEvent) => {
            this.text += 'Add Text'
          })
          .margin({ right: '6%', bottom: '12vp' })
        Button ("Reset Text")
          .width('47%')
          .height(50)
          .margin({ top: 5 })
          .onClick((event?: ClickEvent) => {
            this.text = "2"
          })
          .margin({ bottom: '12vp' })
      }

      Row() {
        Button ("Set SymmetricExtensible to " + this.symmetricExtensible)
          .width('100%')
          .height(50)
          .margin({ top: 5 })
          .onClick((event?: ClickEvent) => {
            this.symmetricExtensible = !this.symmetricExtensible
          })
          .margin({ bottom: '12vp' })
      }

      Row() {
        Button ("Vertical Layout")
          .width('47%')
          .height(50)
          .margin({ top: 5 })
          .onClick((event?: ClickEvent) => {
            this.layoutMode = LayoutMode.VERTICAL;
          })
          .margin({ right: '6%', bottom: '12vp' })
        Button ("horizontal Layout")
          .width('47%')
          .height(50)
          .margin({ top: 5 })
          .onClick((event?: ClickEvent) => {
            this.layoutMode = LayoutMode.HORIZONTAL;
          })
          .margin({ bottom: '12vp' })
      }

      Row() {
        Button ("VerticalAlign.Top")
          .width('100%')
          .height(50)
          .margin({ top: 5 })
          .onClick((event?: ClickEvent) => {
            this.verticalAlign = VerticalAlign.Top;
          })
          .margin({ bottom: '12vp' })
      }

      Row() {
        Button ("VerticalAlign.Center")
          .width('100%')
          .height(50)
          .margin({ top: 5 })
          .onClick((event?: ClickEvent) => {
            this.verticalAlign = VerticalAlign.Center;
          })
          .margin({ bottom: '12vp' })
      }

      Row() {
        Button ("VerticalAlign.Bottom")
          .width('100%')
          .height(50)
          .margin({ top: 5 })
          .onClick((event?: ClickEvent) => {
            this.verticalAlign = VerticalAlign.Bottom;
          })
          .margin({ bottom: '12vp' })
      }


      Tabs({ barPosition: BarPosition.End, controller: this.controller }) {
        TabContent() {
          Column().width('100%').height('100%').backgroundColor(Color.Pink)
        }.tabBar(BottomTabBarStyle.of($r("sys.media.ohos_app_icon"), "1"))

        TabContent() {
          Column().width('100%').height('100%').backgroundColor(Color.Green)
        }.tabBar(BottomTabBarStyle.of($r("sys.media.ohos_app_icon"), this.text)
          .padding(this.tabPadding)
          .verticalAlign(this.verticalAlign)
          .layoutMode(this.layoutMode)
          .symmetricExtensible(this.symmetricExtensible))

        TabContent() {
          Column().width('100%').height('100%').backgroundColor(Color.Blue)
        }.tabBar(BottomTabBarStyle.of($r("sys.media.ohos_app_icon"), "3"))
      }
      .animationDuration(300)
      .height('60%')
      .backgroundColor(0xf1f3f5)
      .barMode(BarMode.Fixed)
    }
    .width('100%')
    .height(500)
    .margin({ top: 5 })
    .padding('24vp')
  }
}

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