EdgeInsets.only constructor

const EdgeInsets.only({
  1. double left = 0.0,
  2. double top = 0.0,
  3. double right = 0.0,
  4. double bottom = 0.0,
})

Creates insets with only the given values non-zero.

Left margin indent of 40 pixels:
link 
const EdgeInsets.only(left: 40.0)

Implementation

const EdgeInsets.only({this.left = 0.0, this.top = 0.0, this.right = 0.0, this.bottom = 0.0});