CircleAvatar with IconButton not centered - flutter

I want to center the button in the CircleAvatar, but for smaller radius, it doesn't seem to be centering correctly.
CircleAvatar(
backgroundColor: Colors.blue,
radius: 16,
child: IconButton(
icon: Icon(Icons.add),
color: Colors.white,
onPressed: () {
}
}),
),
This is what it looks like:


The IconButton has some default padding, fix the issue by removing the default padding.
Check the code below, it works perfectly.
CircleAvatar(
backgroundColor: Colors.blue,
radius: 16,
child: IconButton(
// remove default padding here
padding: EdgeInsets.zero,
icon: Icon(Icons.add),
color: Colors.white,
onPressed: () {},
),
),
Output of the code:


You can use floatingActionButton to achieve that
Container(
child: floatingActionButton(
child: Icon(Icons.add),
),
),
Hope it helps..!


CircleAvatar generally we used for displaying image, we can have some better option like material button
MaterialButton(
onPressed: () {},
color: Colors.blue,
textColor: Colors.white,
child: Icon(
Icons.add,
size: 16,
),
shape: CircleBorder(),
)
Output:

Related

How to customize SlidableAction to look like a round button in flutter?

I was able to add rounded corners but could not figure out how to reduce the default padding and make it a round button.
SlidableAction(
onPressed: (context) {
// do something
},
autoClose: true, // I need this functionality
icon: FeatherIcons.copy,
),
Current Output (SlidableAction)
Required Output(Container in Slidable children)

There's multiple ways to achieve that
You can use the shape: CircleBorder()
MaterialButton(
onPressed: () {},
color: Colors.blue,
textColor: Colors.white,
child: Icon(
Icons.camera_alt,
size: 24,
),
padding: EdgeInsets.all(16),
shape: CircleBorder(),
)
OR
You can use circle avatar
CircleAvatar(
backgroundColor: Colors.blue,
radius: 20,
child: IconButton(
padding: EdgeInsets.zero,
icon: Icon(Icons.add),
color: Colors.white,
onPressed: () {},
),
),

You could try and use ElevatedButton instead of Slidable Action , I will share example code
ActionPane(
motion: ScrollMotion(),
children: [
Builder(
builder: (cont) {
return ElevatedButton(
onPressed: () {
Slidable.of(cont)!.close();
},
style: ElevatedButton.styleFrom(
shape: CircleBorder(),
backgroundColor: Colors.red,
padding: EdgeInsets.all(10),
),
child: const Icon(
Icons.delete,
color: Colors.white,
size: 25,
),
);
},
),
],
),

Is possible to edit AppBar icon background?

I'm trying to change the background color only of the icon that is on the leading of the native AppBar of flutter, but I don't know how, does anyone know if it's possible?

If you are using flutter 3.3, you could do like:
Material(
color: Colors.redAccent,
child: IconButton(
onPressed: () {},
icon: const Icon(Icons.search),
),
),

This apparently solves my initial problem
leading: IconButton(
onPressed: () {...},
icon: Container(
color: Colors.white,
child: const Icon(
Icons.arrow_back,
color: Colors.black,
),
),
),

Fontawesome icon in Flutter

why my icon in CircleAvatar is not in centre?
Column(
crossAxisAlignment: CrossAxisAlignment.center,
children: <Widget>[
IconButton(
icon: CircleAvatar(
child: Icon(FontAwesomeIcons.tshirt, color: Colors.white,),
radius: 60.0,
backgroundColor: Colors.cyan
),
iconSize: 50.0,
onPressed: () {
//
},
),
Text('Odzież')
],
),
I use fontawesome to add icon, but after adding icon, he is not in thecentre of the circle avatar, have anybody any solutions to this problem?

I think this is very common issue with this library.
You have to use FaIcon widget which come with the package. They also mention this issue in their documentations FAQ.
Solution :
Just Replace your icon widget with FaIcon.
CircleAvatar(
child: FaIcon(FontAwesomeIcons.tshirt, color: Colors.white,), // Icon widget changed with FaIcon
radius: 60.0,
backgroundColor: Colors.cyan
),

Replace
IconButton(
icon: CircleAvatar(
child: Icon(FontAwesomeIcons.tshirt, color: Colors.white,),
radius: 60.0,
backgroundColor: Colors.cyan
),
iconSize: 50.0,
onPressed: () {
//
},
),
with
GestureDetector(
behavior: HitTestBehavior.translucent,
child: CircleAvatar(
child: Icon(FontAwesomeIcons.tshirt, color: Colors.white,),
radius: 60.0,
backgroundColor: Colors.cyan
),
iconSize: 50.0,
onTap: () {
//
},
),
This might help as a workaround .

Reduce padding in app bar buttons in flutter

How can I reduce spacing between button ?
You can see four buttons on app bar takes so much space, I have tried Rows. but not worked
Below is my code --
AppBar(
backgroundColor: Colors.deepOrange,
iconTheme: new IconThemeData(color: Colors.white),
title: Text(
titleString,
style: TextStyle(color: Colors.white),
),
actions: <Widget>[
IconButton(
icon: Icon(
Icons.search,
color: Colors.white,
),
//iconSize: 20,
onPressed: null,
),
IconButton(
icon: Icon(
Icons.notifications_none,
color: Colors.white,
),
// iconSize: 20,
onPressed: null,
),
//Add more icon here
],
);

You can use VisualDensity and padding arguments together to reduce things:
actions: <Widget>[
IconButton(
visualDensity: VisualDensity(horizontal: -4.0, vertical: -4.0),
padding: EdgeInsets.zero,
icon: Icon(
Icons.search,
color: Colors.white,
),
//iconSize: 20,
onPressed: null,
),
//Add more icon here
],
This worked in my app at least. Hope it's helpful!

The problem is with the IconButton Widget. by default IconButton has a size of 48x48 pixels size and you can read about it in the top answer of this question.
A workaround would be to use the GestureDetector widget to handle your onPressed() method. Below is an example.
actions: <Widget>[
GestureDetector(
onTap: (){
//your code
},
child: Icon(Icons.search)
),
GestureDetector(
onTap: (){},
child: Icon(Icons.notifications)
)
//Add more icon here
],

Try using sizedbox
Example
Padding(
padding: const EdgeInsets.all(5.0),
child: SizedBox.fromSize(
size: Size(25, 20), // button width and height
child: InkWell(
splashColor: Colors.white, // splash color
onTap: () {}, // button pressed
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Icon(Icons.search), // icon
],
),
),
),
),

How to set background color for an icon button?

I want to apply background color for icon button but I don't see an explicit backgroundColor property for it. I want to achieve this:
Currently I was able to achieve till here:
Below is the code so far:
#override
Widget build(BuildContext context) {
return Scaffold(
resizeToAvoidBottomPadding: false,
backgroundColor: Color(0xFF13212C),
appBar: AppBar(
title: Text('Demo'),
),
drawer: appDrawer(),
body: new Center(
child: new Column(
crossAxisAlignment: CrossAxisAlignment.stretch,
// mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: <Widget>[
new Column(
children: <Widget>[
// new Flexible(
new TextField(
style: new TextStyle(
color: Colors.white,
fontSize: 16.0),
cursorColor: Colors.green,
decoration: new InputDecoration(
suffixIcon: new IconButton(
icon: new Image.asset('assets/search_icon_ivory.png'),onPressed: null),
fillColor: Colors.black,
contentPadding: new EdgeInsets.fromLTRB(10.0, 20.0, 10.0, 20.0),
filled: true,
hintText: 'What Do You Need Help With?',
hintStyle: new TextStyle(
color: Colors.white
)
)
)
// )
]
),

You can use a Circular Avatar with the radius = text field's height/2 or whatever height you prefer.
To figure out text field specs you can visit material.io
So the chunk of code is going to be like the following:
CircleAvatar(
radius: 30,
backgroundColor: Color(0xff94d500),
child: IconButton(
icon: Icon(
Icons.search,
color: Colors.black,
),
onPressed: () {
...
},
),
),
This way you get an Icon button with background color.
I hope this can help you guys.

you can wrap your IconButton with Container and use color property to achieve desire output.
May Following Example help You.
suffixIcon: Container(
color: Colors.green,
child: new IconButton(
icon: new Icon(Icons.search,color: Colors.white,),onPressed: null),
),

You can achieve it with TextButton
TextButton(
style: TextButton.styleFrom(
backgroundColor: colorScheme.primary,
shape: CircleBorder(),
),
child: Icon(
MdiIcons.send,
color: colorScheme.onPrimary,
),
onPressed: () {},
),
The output will look like this:

From the official Flutter docs:
Adding a filled background
Icon buttons don't support specifying a
background color or other background decoration because typically the
icon is just displayed on top of the parent widget's background. Icon
buttons that appear in AppBar.actions are an example of this.
It's easy enough to create an icon button with a filled background
using the Ink widget. The Ink widget renders a decoration on the
underlying Material along with the splash and highlight InkResponse
contributed by descendant widgets.
Tl;dr: IconButton doesn't support background color out-of-the-box. Use this workaround to add the background color and the splash effect when clicking the button:
Ink(
decoration: ShapeDecoration(
color: Colors.blue,
shape: CircleBorder(),
),
child: IconButton(
icon: Icon(Icons.add),
color: Colors.white,
onPressed: () {},
),
),
Live Demo
This is now the officially recommended way to set background color on an IconButton, and the flutter docs have been updated to reflect this.

Hope, this will satisfied you
Ink(
decoration: ShapeDecoration(
color: Colors.red,
shape: CircleBorder(),
),
child: IconButton(
icon: Icon(Icons.delivery_dining),
onPressed: () {
print('pressed');
},
),
),

You can not do that with IconButton widget yet. Good news is that you may replace it with FlatButton like that:
suffixIcon: new FlatButton(
color: Colors.green,
disabledColor: Colors.green[100],
child: Icon(Icons.search)),
color will be used in case onPressed handler is defined, otherwise it will be rendered with disabledColor background.

IconButton does not support that, and RaisedButton recently is deprecated in favour of ElevatedButton, which supports changing background colours as well as shapes, but you cannot easily make it a perfect circle.
So to think out of the box, why not use a FloatingActionButton? They are just widgets too, so they can appear anywhere on the screen. For example, I'm using a FAB in a video chat demo app to toggle cameras.
Example code:
FloatingActionButton(
child: Icon(
Icons.flip_camera_ios_outlined,
color: Colors.white,
),
onPressed: () {
// do your thing here
},
)
And if you aren't happy about its default size, you can always wrap it with a SizedBox to change the width however you see fit.

With latest flutter and material-3 design system, this is just a piece a cake.
IconButton(
onPressed: () { ... },
icon: const Icon(Icons.search),
style: IconButton.styleFrom(backgroundColor: Colors.redAccent),
),

Add a Material
Material(
color:Colors.green
child:IconButton(
icon: Icon(Icons.add),
color: Colors.white,
onPressed: () {},
));

Official solution:
Depends on official documentation of flutter about IconButton Class:
Adding a filled background
Icon buttons don't support specifying a background color or other
background decoration because typically the icon is just displayed on
top of the parent widget's background. Icon buttons that appear in
[AppBar.actions] are an example of this.
It's easy enough to create an icon button with a filled background
using the [Ink] widget. The [Ink] widget renders a decoration on the
underlying [Material] along with the splash and highlight
[InkResponse] contributed by descendant widgets.
So the code will be like this:
Material(
color: Colors.transparent,
child: Ink(
decoration: ShapeDecoration(
color: Colors.white,
shape: CircleBorder(),
),
child: IconButton(
tooltip: "Some Text...",
icon: Icon(Icons.flash_off),
color: Colors.black,
onPressed: () {},
),
),
);
See official example code from flutter, click here ...
Note: Reason to wrap it with Material widget because Ink is drawn
on the underlying Material widget, if you remove it decoration will not appear.

I've used multiple colors to demonstrate You can do as you want. And I say that You put your IconButton into Material widget. This will also solve your Splash Color (which is slightly grey color with some transparency).

If you want it raised, you can use RaisedButton like this:
ConstrainedBox(
constraints: BoxConstraints(maxWidth: 50),
child: RaisedButton(
color: kColorLightGrey,
padding: EdgeInsets.symmetric(
vertical: 12,
),
shape: StadiumBorder(),
child: Icon(Icons.refresh),
onPressed: () {
},
),
),

SizedBox(
height: 38,
width: 38,
child: ElevatedButton(
style: ElevatedButton.styleFrom(
primary: Colors.grey,
onPrimary: Colors.red,
padding: EdgeInsets.zero,
shape: const CircleBorder(),
),
onPressed: () {},
child: const Icon(Icons.refresh),
);

You can use FloatingActionButton for such case But you cannot use FAB in a widget for multi use, it shows error. In such case use this code. It will work on images also.
Card(
color: Colors.blue,
shape: CircleBorder(),
child: IconButton(
icon: const Icon(
Icons.edit,
size: 20,
color: Colors.white,
),
onPressed: () {
print('tapped');
},
));

You can solve this with a GestureDetector and a container. I like using this solution because of the variety of controls it gives you from the combination.
Additionally, GestureDetector opens up more interaction events if you want to incorporate those across devices.
GestureDetector(
onTap: () {},
child: ClipOval(
child: Container(
//add extra margin to visual center icon if icon isn't balanced
color: backgroundColor,
width: size,
height: size,
child: Icon(
Icons.question_mark_sharp,
size: size * 0.6, //size to your preference
color: iconColor,
),
),
),
);
Alternatively you can do this from another question circle icon button
RawMaterialButton(
onPressed: () {},
elevation: 2.0,
fillColor: Colors.white,
child: Icon(
Icons.pause,
size: 35.0,
),
padding: EdgeInsets.all(15.0),
shape: CircleBorder(),
)

ElevatedButton with Theme.
ElevatedButton(
style: ButtonThemes.iconButton,
child: Icon(
icon,
color: color,
),
onPressed: () {},
)
static ButtonStyle get iconButton=> ButtonStyle(
backgroundColor: MaterialStateProperty.all(
backgroundColor,
),
...
);