Reducing the space between icon and text - Flutter OutlinedButton - flutter

Question

Is there an easy way to reduce the space between the icon and text on an OutlinedButton?
Below is my code. Have made a few different attempts but no luck.
OutlinedButton.icon(
onPressed: () {},
icon: Icon(Icons.flash_on_outlined, size: 20.0),
label: Text(
'Surge',
style: TextStyle(
fontSize: 15.0,
fontWeight: FontWeight.bold,
color: Colors.blue,
),
),
style: OutlinedButton.styleFrom(
padding: EdgeInsets.zero,
//fixedSize: Size(40, 25),
backgroundColor: Colors.blue[100],
side: BorderSide(
color: Colors.blue,
width: 1,
),
),
),

Answer 1

OutlinedButton.icon(
onPressed: () {},
icon: Wrap(
// mainAxisAlignment: MainAxisAlignment.start,
children: [
Icon(Icons.flash_on_outlined, size: 20.0),
Text(
'Surge',
style: TextStyle(
fontSize: 15.0,
fontWeight: FontWeight.bold,
color: Colors.blue,
),
)
],
),
label: Text(""),
style: OutlinedButton.styleFrom(
padding: EdgeInsets.zero,
//fixedSize: Size(40, 25),
backgroundColor: Colors.blue[100],
side: BorderSide(
color: Colors.blue,
width: 1,
),
),
)

Answer 2

You are using OutlinedButton.icon. If you look into its source code, you'll see that it's nothing magical at all: it simply puts your icon and text in a Row and places a SizedBox in the middle as a gap, its source code is as follows:
// Flutter source code: `outlined_button.dart`, line 378.
final double gap = scale <= 1 ? 8 : lerpDouble(8, 4, math.min(scale - 1, 1))!;
return Row(
mainAxisSize: MainAxisSize.min,
children: <Widget>[icon, SizedBox(width: gap), Flexible(child: label)],
);
So, if you don't like this default 8-unit gap, simply don't use .icon constructor. Just use the normal constructor and pass in a Row as its child, with whatever gap you want:
OutlinedButton(
child: Row(
mainAxisSize: MainAxisSize.min,
children: const [
Icon(Icons.star),
SizedBox(width: 8),
Text('Add to bookmark'),
],
),
onPressed: () {},
)

Answer 3

The best way to implement such case I think is to replace icon button with button with RichText as a child:
OutlinedButton(
onPressed: () {},
child: RichText(
text: TextSpan(children: [
// Icon as a font character
TextSpan(
text: String.fromCharCode(Icons.flash_on_outlined.codePoint),
style: TextStyle(
color: Colors.amber,
fontFamily: Icons.flash_on_outlined.fontFamily,
package: Icons.flash_on_outlined.fontPackage,
),
),
// Button text
TextSpan(
text: 'Surge',
style: TextStyle(
fontSize: 15.0,
fontWeight: FontWeight.bold,
color: Colors.blue,
),
),
]),
),
style: OutlinedButton.styleFrom(
backgroundColor: Colors.blue[100],
side: BorderSide(
color: Colors.blue,
width: 1,
),
),
)
This solution removes any margin from an icon.

Answer 4

your size, about the icon and the text, are block or you can modify it?