Polymorphic Style

You can set state-specific styles for components.

NOTE

The APIs of this module are supported since API version 8. Updates will be marked with a superscript to indicate their earliest API version.

Attributes

Style	Type	Description
stateStyles	StateStyles	Styles of the component for different states. Since API version 9, this API is supported in ArkTS widgets.

StateStyles

Since API version 9, this API is supported in ArkTS widgets.

Name	Type	Mandatory	Description
normal	()=>void	No	Style of the component when being stateless.
pressed	()=>void	No	Style of the component in the pressed state.
disabled	()=>void	No	Style of the component in disabled state.
focused	()=>void	No	Style of the component in focused state.
clicked	()=>void	No	Style of the component in clicked state.

Example

// xxx.ets
@Entry
@Component
struct StyleExample {
  @State isEnable: boolean = true

  @Styles pressedStyles() {
        .backgroundColor("#ED6F21")
        .borderRadius(10)
        .borderStyle(BorderStyle.Dashed)
        .borderWidth(2)
        .borderColor("#33000000")
        .width(120)
        .height(30)
        .opacity(1)
  }

  @Styles disabledStyles() {
        .backgroundColor("#E5E5E5")
        .borderRadius(10)
        .borderStyle(BorderStyle.Solid)
        .borderWidth(2)
        .borderColor("#2a4c1919")
        .width(90)
        .height(25)
        .opacity(1)
  }

  @Styles normalStyles() {
        .backgroundColor("#0A59F7")
        .borderRadius(10)
        .borderStyle(BorderStyle.Solid)
        .borderWidth(2)
        .borderColor("#33000000")
        .width(100)
        .height(25)
        .opacity(1)
  }

  build() {
    Flex({ direction: FlexDirection.Column, alignItems: ItemAlign.Center }) {
      Text("normal")
        .fontSize(14)
        .fontColor(Color.White)
        .opacity(0.5)
        .stateStyles({
          normal: this.normalStyles,
        })
        .margin({ bottom: 20 })
        .textAlign(TextAlign.Center)
      Text("pressed")
        .backgroundColor("#0A59F7")
        .borderRadius(20)
        .borderStyle(BorderStyle.Dotted)
        .borderWidth(2)
        .borderColor(Color.Red)
        .width(100)
        .height(25)
        .opacity(1)
        .fontSize(14)
        .fontColor(Color.White)
        .stateStyles({
          pressed: this.pressedStyles,
        })
        .margin({ bottom: 20 })
        .textAlign(TextAlign.Center)
      Text(this.isEnable == true ? "effective" : "disabled")
        .backgroundColor("#0A59F7")
        .borderRadius(20)
        .borderStyle(BorderStyle.Solid)
        .borderWidth(2)
        .borderColor(Color.Gray)
        .width(100)
        .height(25)
        .opacity(1)
        .fontSize(14)
        .fontColor(Color.White)
        .enabled(this.isEnable)
        .stateStyles({
          disabled: this.disabledStyles,
        })
        .textAlign(TextAlign.Center)
      Text("control disabled")
        .onClick(() => {
          this.isEnable = !this.isEnable
          console.log(`${this.isEnable}`)
        })
    }
    .width(350).height(300)
  }
}

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