跑马灯组件

子组件

无

接口

Marquee(value: { start: boolean, step?: number, loop?: number, fromStart?: boolean, src: string })

从API version 9开始，该接口支持在ArkTS卡片中使用。

参数：

属性

除支持文本通用属性：fontColor、fontSize、fontWeight、fontFamily外，还支持以下属性：

事件

示例

// xxx.ets
@Entry
@Component
struct MarqueeExample {
  @State start: boolean = false
  private fromStart: boolean = true
  private step: number = 50
  private loop: number = Infinity
  private src: string = "Running Marquee starts rolling"

  build() {
    Flex({ direction: FlexDirection.Column, alignItems: ItemAlign.Center, justifyContent: FlexAlign.Center }) {
      Marquee({
        start: this.start,
        step: this.step,
        loop: this.loop,
        fromStart: this.fromStart,
        src: this.src
      })
        .width(360)
        .height(80)
        .fontColor('#FFFFFF')
        .fontSize(48)
        .fontWeight(700)
        .backgroundColor('#182431')
        .margin({ bottom: 40 })
        .onStart(() => {
          console.info('Marquee animation complete onStart')
        })
        .onBounce(() => {
          console.info('Marquee animation complete onBounce')
        })
        .onFinish(() => {
          console.info('Marquee animation complete onFinish')
        })
      Button('Start')
        .onClick(() => {
          this.start = true
        })
        .width(120)
        .height(40)
        .fontSize(16)
        .fontWeight(500)
        .backgroundColor('#007DFF')
    }
    .width('100%')
    .height('100%')
  }
}