HarmonyOS API：容器组件

// xxx.ets
@Entry
@Component
struct PanelExample {
  @State show: boolean = false

  build() {
    Column() {
      Text('2021-09-30    Today Calendar: 1.afternoon......Click for details')
        .width('90%').height(50).borderRadius(10)
        .backgroundColor(0xFFFFFF).padding({ left: 20 })
        .onClick(() => {
          this.show = !this.show
        })
      Panel(this.show) { // 展示日程
        Column() {
          Text('Today Calendar')
          Divider().color(Color.Black)
          Text('1. afternoon 4:00 The project meeting')
        }
      }
      .type(PanelType.Foldable).mode(PanelMode.Half)
      .dragBar(true) // 默认开启
      .halfHeight(500) // 默认一半
      .onChange((width: number, height: number, mode: PanelMode) => {
        console.info(`width:${width},height:${height},mode:${mode}`)
      })
    }.width('100%').height('100%').backgroundColor(0xDCDCDC).padding({ top: 5 })
  }
}
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// xxx.ets
@Entry
@Component
struct RefreshExample {
  @State isRefreshing: boolean = false
  @State counter: number = 0

  build() {
    Column() {
      Refresh({ refreshing: $$this.isRefreshing, offset: 120, friction: 100 }) {
        Text('Pull Down and refresh: ' + this.counter)
          .fontSize(30)
          .margin(10)
      }
      .onStateChange((refreshStatus: RefreshStatus) => {
        console.info('Refresh onStatueChange state is ' + refreshStatus)
      })
      .onRefreshing(() => {
        setTimeout(() => {
          this.counter++
          this.isRefreshing = false
        }, 1000)
        console.log('onRefreshing test')
      })
    }
  }
}
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@Entry
@Component
struct Index {
  build() {
    Row() {

      RelativeContainer() {
        Row().width(100).height(100)
          .backgroundColor("#FF3333")
          .alignRules({
            top: {anchor: "__container__", align: VerticalAlign.Top},
            left: {anchor: "__container__", align: HorizontalAlign.Start}
          })
          .id("row1")

        Row().width(100).height(100)
          .backgroundColor("#FFCC00")
          .alignRules({
            top: {anchor: "__container__", align: VerticalAlign.Top},
            right: {anchor: "__container__", align: HorizontalAlign.End}
          })
          .id("row2")

        Row().height(100)
          .backgroundColor("#FF6633")
          .alignRules({
            top: {anchor: "row1", align: VerticalAlign.Bottom},
            left: {anchor: "row1", align: HorizontalAlign.End},
            right: {anchor: "row2", align: HorizontalAlign.Start}
          })
          .id("row3")

        Row()
          .backgroundColor("#FF9966")
          .alignRules({
            top: {anchor: "row3", align: VerticalAlign.Bottom},
            bottom: {anchor: "__container__", align: VerticalAlign.Bottom},
            left: {anchor: "__container__", align: HorizontalAlign.Start},
            right: {anchor: "row1", align: HorizontalAlign.End}
          })
          .id("row4")

        Row()
          .backgroundColor("#FF66FF")
          .alignRules({
            top: {anchor: "row3", align: VerticalAlign.Bottom},
            bottom: {anchor: "__container__", align: VerticalAlign.Bottom},
            left: {anchor: "row2", align: HorizontalAlign.Start},
            right: {anchor: "__container__", align: HorizontalAlign.End}
          })
          .id("row5")
      }
      .width(300).height(300)
      .margin({left: 100})
      .border({width:2, color: "#6699FF"})
    }
    .height('100%')
  }
}
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