HarmonyOS API：基础组件

// xxx.ets
@Entry
@Component
struct SpanExample {
  build() {
    Flex({ direction: FlexDirection.Column, alignItems: ItemAlign.Start, justifyContent: FlexAlign.SpaceBetween }) {
      Text('Basic Usage').fontSize(9).fontColor(0xCCCCCC)
      Text() {
        Span('This is the Span component').fontSize(12).textCase(TextCase.Normal)
          .decoration({ type: TextDecorationType.None, color: Color.Red })
      }

      // 文本横线添加
      Text('Text Decoration').fontSize(9).fontColor(0xCCCCCC)
      Text() {
        Span('I am Underline-span').decoration({ type: TextDecorationType.Underline, color: Color.Red }).fontSize(12)
      }

      Text() {
        Span('I am LineThrough-span')
          .decoration({ type: TextDecorationType.LineThrough, color: Color.Red })
          .fontSize(12)
      }

      Text() {
        Span('I am Overline-span').decoration({ type: TextDecorationType.Overline, color: Color.Red }).fontSize(12)
      }

      // 文本字符间距
      Text('LetterSpacing').fontSize(9).fontColor(0xCCCCCC)
      Text() {
        Span('span letter spacing')
          .letterSpacing(0)
          .fontSize(12)
      }

      Text() {
        Span('span letter spacing')
          .letterSpacing(-2)
          .fontSize(12)
      }

      Text() {
        Span('span letter spacing')
          .letterSpacing(3)
          .fontSize(12)
      }



      // 文本大小写展示设置
      Text('Text Case').fontSize(9).fontColor(0xCCCCCC)
      Text() {
        Span('I am Lower-span').fontSize(12)
          .textCase(TextCase.LowerCase)
          .decoration({ type: TextDecorationType.None })
      }

      Text() {
        Span('I am Upper-span').fontSize(12)
          .textCase(TextCase.UpperCase)
          .decoration({ type: TextDecorationType.None })
      }
    }.width('100%').height(250).padding({ left: 35, right: 35, top: 35 })
  }
}

// xxx.ets
@Styles function itemStyle () {
  .width(336)
  .height(621)
  .margin({ top: 48, left: 12 })
  .borderRadius(24)
  .backgroundColor('#FFFFFF')
}

@Extend(Text) function itemTextStyle () {
  .fontColor('#182431')
  .fontSize(36)
  .fontWeight(500)
  .opacity(0.4)
  .margin({ top: 82, bottom: 40 })
}

@Entry
@Component
struct StepperExample {
  @State currentIndex: number = 0
  @State firstState: ItemState = ItemState.Normal
  @State secondState: ItemState = ItemState.Normal
  @State thirdState: ItemState = ItemState.Normal

  build() {
    Stepper({
      index: this.currentIndex
    }) {
      // 第一个步骤页
      StepperItem() {
        Column() {
          Text('Page One')
            .itemTextStyle()
          Button('change status:' + this.firstState)
            .backgroundColor('#007dFF')
            .onClick(() => {
              this.firstState = this.firstState === ItemState.Skip ? ItemState.Normal : ItemState.Skip
            })
        }.itemStyle()
      }
      .nextLabel('Next')
      .status(this.firstState)
      // 第二个步骤页
      StepperItem() {
        Column() {
          Text('Page Two')
            .itemTextStyle()
          Button('change status:' + this.secondState)
            .backgroundColor('#007dFF')
            .onClick(() => {
              this.secondState = this.secondState === ItemState.Disabled ? ItemState.Normal : ItemState.Disabled
            })
        }.itemStyle()
      }
      .nextLabel('Next')
      .prevLabel('Previous')
      .status(this.secondState)
      // 第三个步骤页
      StepperItem() {
        Column() {
          Text('Page Three')
            .itemTextStyle()
          Button('change status:' + this.thirdState)
            .backgroundColor('#007dFF')
            .onClick(() => {
              this.thirdState = this.thirdState === ItemState.Waiting ? ItemState.Normal : ItemState.Waiting
            })
        }.itemStyle()
      }
      .status(this.thirdState)
      // 第四个步骤页
      StepperItem() {
        Column() {
          Text('Page Four')
            .itemTextStyle()
        }.itemStyle()
      }
    }
    .backgroundColor('#F1F3F5')
    .onFinish(() => {
      // 此处可处理点击最后一页的Finish时的逻辑，例如路由跳转等
      console.info('onFinish')
    })
    .onSkip(() => {
      // 此处可处理点击跳过时的逻辑，例如动态修改Stepper的index值使其跳转到某一步骤页等
      console.info('onSkip')
    })
    .onChange((prevIndex: number, index: number) => {
      this.currentIndex = index
    })
  }
}

// xxx.ets
@Entry
@Component
struct TextExample1 {
  build() {
    Flex({ direction: FlexDirection.Column, alignItems: ItemAlign.Start, justifyContent: FlexAlign.SpaceBetween }) {
      // 文本水平方向对齐方式设置
      // 单行文本
      Text('textAlign').fontSize(9).fontColor(0xCCCCCC)
      Text('TextAlign set to Center.')
        .textAlign(TextAlign.Center)
        .fontSize(12)
        .border({ width: 1 })
        .padding(10)
        .width('100%')
      Text('TextAlign set to Start.')
        .textAlign(TextAlign.Start)
        .fontSize(12)
        .border({ width: 1 })
        .padding(10)
        .width('100%')
      Text('TextAlign set to End.')
        .textAlign(TextAlign.End)
        .fontSize(12)
        .border({ width: 1 })
        .padding(10)
        .width('100%')

      // 多行文本
      Text('This is the text content with textAlign set to Center.')
        .textAlign(TextAlign.Center)
        .fontSize(12)
        .border({ width: 1 })
        .padding(10)
        .width('100%')
      Text('This is the text content with textAlign set to Start.')
        .textAlign(TextAlign.Start)
        .fontSize(12)
        .border({ width: 1 })
        .padding(10)
        .width('100%')
      Text('This is the text content with textAlign set to End.')
        .textAlign(TextAlign.End)
        .fontSize(12)
        .border({ width: 1 })
        .padding(10)
        .width('100%')



      // 文本超长时显示方式
      Text('TextOverflow+maxLines').fontSize(9).fontColor(0xCCCCCC)
      // 超出maxLines截断内容展示
      Text('This is the setting of textOverflow to Clip text content This is the setting of textOverflow to None text content. This is the setting of textOverflow to Clip text content This is the setting of textOverflow to None text content.')
        .textOverflow({ overflow: TextOverflow.None })
        .maxLines(1)
        .fontSize(12)
        .border({ width: 1 })
        .padding(10)

      // 超出maxLines展示省略号
      Text('This is set textOverflow to Ellipsis text content This is set textOverflow to Ellipsis text content.'.split('')
        .join('\u200B'))
        .textOverflow({ overflow: TextOverflow.Ellipsis })
        .maxLines(1)
        .fontSize(12)
        .border({ width: 1 })
        .padding(10)

      Text('lineHeight').fontSize(9).fontColor(0xCCCCCC)
      Text('This is the text with the line height set. This is the text with the line height set.')
        .fontSize(12).border({ width: 1 }).padding(10)
      Text('This is the text with the line height set. This is the text with the line height set.')
        .fontSize(12).border({ width: 1 }).padding(10)
        .lineHeight(20)
    }.height(600).width(350).padding({ left: 35, right: 35, top: 35 })
  }
}

@Entry
@Component
struct TextExample2 {
  build() {
    Flex({ direction: FlexDirection.Column, alignItems: ItemAlign.Start, justifyContent: FlexAlign.SpaceBetween }) {
      Text('decoration').fontSize(9).fontColor(0xCCCCCC)
      Text('This is the text content with the decoration set to LineThrough and the color set to Red.')
        .decoration({
          type: TextDecorationType.LineThrough,
          color: Color.Red
        })
        .fontSize(12)
        .border({ width: 1 })
        .padding(10)
        .width('100%')



      Text('This is the text content with the decoration set to Overline and the color set to Red.')
        .decoration({
          type: TextDecorationType.Overline,
          color: Color.Red
        })
        .fontSize(12)
        .border({ width: 1 })
        .padding(10)
        .width('100%')



      Text('This is the text content with the decoration set to Underline and the color set to Red.')
        .decoration({
          type: TextDecorationType.Underline,
          color: Color.Red
        })
        .fontSize(12)
        .border({ width: 1 })
        .padding(10)
        .width('100%')

      // 文本基线偏移
      Text('baselineOffset').fontSize(9).fontColor(0xCCCCCC)
      Text('This is the text content with baselineOffset 0.')
        .baselineOffset(0)
        .fontSize(12)
        .border({ width: 1 })
        .padding(10)
        .width('100%')
      Text('This is the text content with baselineOffset 30.')
        .baselineOffset(30)
        .fontSize(12)
        .border({ width: 1 })
        .padding(10)
        .width('100%')
      Text('This is the text content with baselineOffset -20.')
        .baselineOffset(-20)
        .fontSize(12)
        .border({ width: 1 })
        .padding(10)
        .width('100%')

      // 文本字符间距
      Text('letterSpacing').fontSize(9).fontColor(0xCCCCCC)
      Text('This is the text content with letterSpacing 0.')
        .letterSpacing(0)
        .fontSize(12)
        .border({ width: 1 })
        .padding(10)
        .width('100%')
      Text('This is the text content with letterSpacing 3.')
        .letterSpacing(3)
        .fontSize(12)
        .border({ width: 1 })
        .padding(10)
        .width('100%')
      Text('This is the text content with letterSpacing -1.')
        .letterSpacing(-1)
        .fontSize(12)
        .border({ width: 1 })
        .padding(10)
        .width('100%')

      Text('textCase').fontSize(9).fontColor(0xCCCCCC)
      Text('This is the text content with textCase set to Normal.')
        .textCase(TextCase.Normal)
        .fontSize(12)
        .border({ width: 1 })
        .padding(10)
        .width('100%')
      // 文本全小写展示
      Text('This is the text content with textCase set to LowerCase.')
        .textCase(TextCase.LowerCase)
        .fontSize(12)
        .border({ width: 1 })
        .padding(10)
        .width('100%')
      // 文本全大写展示
      Text('This is the text content with textCase set to UpperCase.')
        .textCase(TextCase.UpperCase)
        .fontSize(12).border({ width: 1 }).padding(10)

    }.height(700).width(350).padding({ left: 35, right: 35, top: 35 })
  }
}