harmony 鸿蒙Foreground Color

2023-06-24
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Foreground Color

The foreground color attributes set the foreground color of a component.

NOTE

The initial APIs of this module are supported since API version 10. Newly added APIs will be marked with a superscript to indicate their earliest API version.

Attributes

Name	Type	Description
foregroundColor	ResourceColor \|ColoringStrategy	Foreground color. The value can be a specific color or a coloring strategy.

Example

Example 1

// xxx.ets
@Entry
@Component
struct ForegroundColorExample {
  build() {
    Column({ space: 100 }) {
      // Draw a circle with a diameter of 150 and the default fill color black.
      Circle({ width: 150, height: 200 })
      // Draw a circle with a diameter of 150.
      Circle({ width: 150, height: 200 }).foregroundColor(Color.Red)
    }.width('100%').backgroundColor(Color.Blue)
  }
}

foregroundColor_circle

Example 2

// xxx.ets
@Entry
@Component
struct ColoringStrategyExample {
  build() {
    Column({ space: 100 }) {
      // Draw a circle with a diameter of 150 and the default fill color black.
      Circle({ width: 150, height: 200 })
      // Draw a circle with a diameter of 150 and set its foreground color to the inverse of the component background color.
      Circle({ width: 150, height: 200 })
        .backgroundColor(Color.Black)
        .foregroundColor(ColoringStrategy.INVERT)
    }.width('100%')
  }
}

foregroundColor_circle

Example 3

// xxx.ets
@Entry
@Component
struct foregroundColorInherit {
  build() {
    Column() {
      Button('Foreground Color: Set to Orange').fontSize(20).foregroundColor(Color.Orange).backgroundColor(Color.Gray)
      Divider()
      Button ('Foreground Color: Inherited from Parent Component When Not Set').fontSize(20).backgroundColor(Color.Gray)
    }.foregroundColor(Color.Red)
  }
}

foregroundColor_circle