在鸿蒙开发中，如何设置输入框内文本超长省略？

Question

在鸿蒙开发中，如何设置输入框内文本超长省略

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Answer 1

通过maxLines、textOverflow、ellipsisMode属性展示了文本超长省略以及调整省略位置的效果。

@Extend(Text)
function style() {
  .textAlign(TextAlign.Center)
  .fontSize(12)
  .border({ width: 1 })
  .padding(10)
  .width('100%')
  .margin(5)
}

@Entry
@Component
struct TextExample3 {
  @State text: string =
    'The text component is used to display a piece of textual information.Support universal attributes and universal text attributes.'
  @State ellipsisModeIndex: number = 0
  @State ellipsisMode: EllipsisMode[] = [EllipsisMode.START, EllipsisMode.CENTER, EllipsisMode.END]
  @State ellipsisModeStr: string[] = ['START', 'CENTER', 'END']

  build() {
    Flex({ direction: FlexDirection.Column, alignItems: ItemAlign.Center }) {
      // 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.Clip })
        .maxLines(1)
        .style()

      // 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.')
        .textOverflow({ overflow: TextOverflow.Ellipsis })
        .maxLines(1)
        .style()

      Text('marquee').fontSize(9).fontColor(0xCCCCCC)
      // 设置文本超长时以跑马灯的方式展示
      Text('This is the text with the text overflow set marquee')
        .textOverflow({ overflow: TextOverflow.MARQUEE })
        .style()

      Text('ellipsisMode').fontSize(9).fontColor(0xCCCCCC)
      // 设置文本超长时省略号的位置
      Text(this.text)
        .textOverflow({ overflow: TextOverflow.Ellipsis })
        .ellipsisMode(this.ellipsisMode[this.ellipsisModeIndex])
        .maxLines(1)
        .style()

      Row() {
        Button('更改省略号位置：' + this.ellipsisModeStr[this.ellipsisModeIndex]).onClick(() => {
          this.ellipsisModeIndex++
          if (this.ellipsisModeIndex > (this.ellipsisModeStr.length - 1)) {
            this.ellipsisModeIndex = 0
          }
        })
      }
    }.height(600).width('100%').padding({ left: 35, right: 35, top: 35 })
  }
}

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