How do I remove Flutter IconButton big padding?

Question

I want to have a row of IconButtons, all next to each other, but there seems to be pretty big padding between the actual icon, and the IconButton limits. I've already set the padding on the button to 0.

This is my component, pretty straightforward:

class ActionButtons extends StatelessWidget {
  @override
    Widget build(BuildContext context) {
      return Container(
        color: Colors.lightBlue,
        margin: const EdgeInsets.all(0.0),
        padding: const EdgeInsets.all(0.0),
        child: Row(
          mainAxisAlignment: MainAxisAlignment.start,
          children: <Widget>[
            IconButton(
              icon: new Icon(ScanrIcons.reg),
              alignment: Alignment.center,
              padding: new EdgeInsets.all(0.0),
              onPressed: () {},
            ),
            IconButton(
              icon: new Icon(Icons.volume_up),
              alignment: Alignment.center,
              padding: new EdgeInsets.all(0.0),
              onPressed: () {},
            )
          ],
        ),
      );
    }
}

I want to get rid of most of the light blue space, have my icons start earlier on the left, and closer to each other, but I can't find the way to resize the IconButton itself.

I'm almost sure this space is taken by the button itself, 'cause if I change their alignments to centerRight and centerLeft they look like this:

Making the actual icons smaller doesn't help either, the button is still big:

thanks for the help

Have you tried making your actual icons larger? It looks like the icon may be centered in, but not filling up, it's space in the icon font glyph. — Deborah, May 17 '18 at 11:26
use GestureDetector( onTap: () {}, child: new Icon(Icons.volume_up) ) — Shyju M, May 17 '18 at 11:33

score 278 · Answer 1 · answered Jul 27 '20 at 03:28

278

Simply pass an empty BoxConstrains to the constraints property and a padding of zero.

IconButton(
    padding: EdgeInsets.zero,
    constraints: BoxConstraints(),
)

You have to pass the empty constrains because, by default, the IconButton widget assumes a minimum size of 48px.

answered Jul 27 '20 at 03:28

Rodrigo Vieira

3,037
2
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2

padding: EdgeInsets.zero, its working but getting error of constraints: BoxConstraints(), – s.j Oct 08 '20 at 07:16
2

I had zeroed out the filling, but the information on `constraints` was more important. thanks. – Felipe Sales Jul 25 '22 at 17:41
I preferred using which was half the space, but enough to not be too tight. padding: const EdgeInsets.all(4.0), – Bhikkhu Subhuti May 01 '23 at 13:09

sgon00 · Answer 2 · 2019-05-06T09:24:54.450

95

Two ways to workaround this issue.

Still Use IconButton

Wrap the IconButton inside a Container which has a width.

For example:

Container(
  padding: const EdgeInsets.all(0.0),
  width: 30.0, // you can adjust the width as you need
  child: IconButton(
  ),
),

Use GestureDetector instead of IconButton

You can also use GestureDetector instead of IconButton, recommended by Shyju Madathil.

GestureDetector( onTap: () {}, child: Icon(Icons.volume_up) )

edited May 06 '19 at 09:24

answered May 06 '19 at 08:54

sgon00

4,879
1
43
59

2

Thanks! This fit in perfectly for me :) – Anoop Thiruonam Jan 23 '20 at 01:32
Perfect ever found – user7418129 Jan 30 '20 at 06:16
1

InkWell if you are trying to mimic a FlatButton – AlexK May 29 '20 at 03:39
the hack with the constraints of the `IconButton` is really dope – Dennis Barzanoff Nov 18 '20 at 07:52
**Use IconButton**! – Alan Cesar May 06 '22 at 22:36
1

Wrapping IconButton in a Container is not removing the padding – Ovidiu Uşvat Aug 03 '22 at 09:13

score 27 · Accepted Answer · edited Jun 20 '20 at 09:12

It's not so much that there's a padding there. IconButton is a Material Design widget which follows the spec that tappable objects need to be at least 48px on each side. You can click into the IconButton implementation from any IDEs.

You can also semi-trivially take the icon_button.dart source-code and make your own IconButton that doesn't follow the Material Design specs since the whole file is just composing other widgets and is just 200 lines that are mostly comments.

score 14 · Answer 4 · edited Nov 22 '19 at 13:47

14

Wrapping the IconButton in a container simply wont work, instead use ClipRRect and add a material Widget with an Inkwell, just make sure to give the ClipRRect widget enough border Radius .

ClipRRect(
    borderRadius: BorderRadius.circular(50),
    child : Material(
        child : InkWell(
            child : Padding(
                padding : const EdgeInsets.all(5),
                child : Icon(
                    Icons.favorite_border,
                    ),
                ),
            onTap : () {},
            ),
        ),
    )

edited Nov 22 '19 at 13:47

HMD

2,202
6
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answered Nov 22 '19 at 13:29

Reagan Realones

221
3
3

Nice solution, and it made me aware of the ClipRRect widget and family. :) – Enrichman Nov 16 '20 at 20:38

score 5 · Answer 5 · answered Mar 28 '20 at 11:38

Instead of removing a padding around an IconButton you could simply use an Icon and wrap it with a GestureDetector or InkWell as

GestureDetector(
   ontap:(){}
   child:Icon(...)
);

Incase you want the ripple/Ink splash effect as the IconButton provides on click wrap it with an InkWell

InkWell(
   splashColor: Colors.red,
   child:Icon(...)
   ontap:(){}
)

though the Ink thrown on the Icon in second approach wont be so accurate as for the IconButton, you may need to do some custom implementation for that.

score 3 · Answer 6 · answered May 19 '20 at 20:03

Here's a solution to get rid of any extra padding, using InkWell in place of IconButton:

Widget backButtonContainer = InkWell(
    child: Container(
      child: const Icon(
        Icons.arrow_upward,
        color: Colors.white,
        size: 35.0,
      ),
    ),
    onTap: () {
      Navigator.of(_context).pop();
    });

score 1 · Answer 7 · answered Aug 28 '19 at 14:35

I was facing a similar issue trying to render an Icon at the location the user touches the screen. Unfortunately, the Icon class wraps your chosen icon in a SizedBox.

Reading a little of the Icon class source it turns out that each Icon can be treated as text:

Widget iconWidget = RichText(
      overflow: TextOverflow.visible,
      textDirection: textDirection,
      text: TextSpan(
        text: String.fromCharCode(icon.codePoint),
        style: TextStyle(
          inherit: false,
          color: iconColor,
          fontSize: iconSize,
          fontFamily: icon.fontFamily,
          package: icon.fontPackage,
        ),
      ),
    );

So, for instance, if I want to render Icons.details to indicate where my user just pointed, without any margin, I can do something like this:

Widget _pointer = Text(
      String.fromCharCode(Icons.details.codePoint),
      style: TextStyle(
        fontFamily: Icons.details.fontFamily,
        package: Icons.details.fontPackage,
        fontSize: 24.0,
        color: Colors.black
      ),
    );

Dart/Flutter source code is remarkably approachable, I highly recommend digging in a little!

score 0 · Answer 8 · answered Feb 29 '20 at 11:19

0

A better solution is to use Transform.scale like this:

 Transform.scale(
   scale: 0.5, // set your value here
   child: IconButton(icon: Icon(Icons.smartphone), onPressed: () {}),
 )

answered Feb 29 '20 at 11:19

CopsOnRoad

237,138
77
654
440

score 0 · Answer 9 · answered Dec 12 '20 at 14:02

You can use ListTile it gives you a default space between text and Icons that would fit your needs

ListTile(
         leading: Icon(Icons.add), //Here Is The Icon You Want To Use
         title: Text('GFG title',textScaleFactor: 1.5,), //Here Is The Text Also
         trailing: Icon(Icons.done),
         ),

linyi102 · Answer 10 · 2023-02-13T14:33:07.713

0

I like the following way:

InkWell(
  borderRadius: BorderRadius.circular(50),
  onTap: () {},
  child: Container(
    padding: const EdgeInsets.all(8),
    child: const Icon(Icons.favorite, color: Colors.red),
  ),
),

enter image description here

edited Feb 13 '23 at 14:33

answered Feb 13 '23 at 14:31

linyi102

1
1

score -9 · Answer 11 · answered Sep 06 '19 at 11:41

-9

To show splash effect (ripple), use InkResponse:

InkResponse(
  Icon(Icons.volume_up),
  onTap: ...,
)

If needed, change icons size or add padding:

InkResponse(
  child: Padding(
    padding: ...,
    child: Icon(Icons.volume_up, size: ...),
  ),
  onTap: ...,
)

answered Sep 06 '19 at 11:41

Pavel

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Nowhere in the question it is asked to show ripple effect! – Ashish Yadav Jan 09 '21 at 12:46
@Ashish, IconButton implies having ripple effect. If you don't need ripple effect, you can just use GestureDetector. It's quite simple and shown in the top answer. My solution allows to remove padding but keep IconButton-like ripple – Pavel Jan 10 '21 at 13:23

How do I remove Flutter IconButton big padding?

11 Answers11

Still Use IconButton

Use GestureDetector instead of IconButton

Linked