开源鸿蒙 Child Component Configuration

2022-08-09
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Child Component Configuration

For a component that supports child components, for example, a container component, add the UI descriptions of the child components inside “{ … }”. The <Column>, <Row>, <Stack>, <Button>, <Grid>, and <List> components are container components.

The following is a simple example of the <Column> component:

  Column() {
      Text('Hello')
          .fontSize(100)
      Divider()
      Text(this.myText)
          .fontSize(100)
          .fontColor(Color.Red)
  }

Multiple child components can be nested in the <Column> component, as shown below:

  Column() {
      Column() {
          Button() {
              Text('+ 1')
          }.type(ButtonType.Capsule)
          .onClick(() =&gt; console.log ('+1 clicked!'))
          Image('1.jpg')
      }
      Divider()
      Column() {
          Button() {
              Text('+ 2')
          }.type(ButtonType.Capsule)
          .onClick(() =&gt; console.log ('+2 clicked!'))
          Image('2.jpg')
      }
      Divider()
      Column() {
          Button() {
              Text('+ 3')
          }.type(ButtonType.Capsule)
          .onClick(() =&gt; console.log('+3 clicked!'))
          Image('3.jpg')
      }
  }.alignItems(HorizontalAlign.Center) // center align components inside Column