button border flutter code example
Example: flat button rounded shape
new OutlineButton(
child: new Text("Button text"),
onPressed: null,
shape: new RoundedRectangleBorder(borderRadius: new BorderRadius.circular(30.0))
)
new OutlineButton(
child: new Text("Button text"),
onPressed: null,
shape: new RoundedRectangleBorder(borderRadius: new BorderRadius.circular(30.0))
)