Skip to main content
Stac opacity allows you to build the Flutter Opacity widget using JSON. To know more about the Slider widget in Flutter, refer to the official documentation.

​
Properties

PropertyTypeDescription
opacitydoubleThe opacity value between 0.0 and 1.0 which controls the visibility of the child, with 0.0 being fully transparent (invisible) and 1.0 being fully opaque (visible).
childMap<String, dynamic>The child widget of the opacity.

​
Example JSON

{
  "type": "scaffold",
  "appBar": {
    "type": "appBar",
    "title": {
      "type": "text",
      "data": "Opacity"
    }
  },
  "body": {
    "type": "center",
    "child": {
      "type": "opacity",
      "opacity": 0.5,
      "child": {
        "type": "text",
        "data": "Opacity Widget",
        "style": {
          "fontSize": 23,
          "fontWeight": "w600"
        }
      }
    }
  }
}