Flutter EdgeInsets Tutorial with Examples
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EdgeInsets helps create the outer padding or the inner padding for a Widget based on the visual parameters, left, top, right, and bottom. It does not depend on the text direction.
To support both left-to-right and right-to-left layouts, take the EdgeInsetsDirectional into consideration.
- TODO Link?
EdgeInsets.all constructor is used to create an EdgeInsets object with the same value for all four left, top, right, bottom properties.
const EdgeInsets.all(
double value
)
EdgeInsets.all (ex1)
Container (
margin: EdgeInsets.all(80),
color: Colors.greenAccent,
child:Text(
"Hi There!",
style: TextStyle(fontSize: 28)
)
)
EdgeInsets.fromLTRB constructor is used to create an EdgeInsets object based on the left, top, right and bottom values.
const EdgeInsets.fromLTRB(
double left,
double top,
double right,
double bottom
)
EdgeInsets.fromLTRB (ex1)
Padding (
padding: EdgeInsets.fromLTRB(80, 100, 70, 50),
child: ElevatedButton (
child: Text("Button"),
onPressed: (){}
)
)
EdgeInsets.only constructor creates an EdgeInsets object from the left, top, right and bottom optional parameters. The unspecified parameters will have a value of 0.
const EdgeInsets.only(
{double left: 0.0,
double top: 0.0,
double right: 0.0,
double bottom: 0.0}
)
EdgeInsets.only (ex1)
Container (
color: Colors.greenAccent,
padding: EdgeInsets.only(left: 120, top: 50, right: 80),
child: ElevatedButton (
child: Text("Button"),
onPressed: (){}
)
)
EdgeInsets.symmetric constructor creates a symmetric EdgeInsets object from the two horizontal and vertical parameters. It means:
- left = right = horizontal
- top = bottom = vertical
const EdgeInsets.symmetric(
{double vertical: 0.0,
double horizontal: 0.0}
)
EdgeInsets.symmetric (ex1)
Container (
color: Colors.greenAccent,
padding: EdgeInsets.symmetric(horizontal: 120, vertical: 50),
child: ElevatedButton (
child: Text("Button"),
onPressed: (){}
)
)
const EdgeInsets.fromWindowPadding(
WindowPadding padding,
double devicePixelRatio
)
