Related
I have two buttons in the bottom of the screen in a single row. i want to keep first button in center and second button in end. how can i achieve that?
Here is my Code
new Container
(
child:Row(
children:<Widget>[
new RaisedButton(
color: Colors.red,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(10)),
onPressed: takescrshot,
child: Padding(
padding: const EdgeInsets.all(8.0),
child: Text(
'Next',
style:
TextStyle(fontSize: 23, color: Colors.white),
),
),
),
new FloatingActionButton.extended(
onPressed: () {
// Add your onPressed code here!
},
label: Text('options'),
icon: Icon(Icons.menu),
backgroundColor: Colors.pink,
),
])
)
Can anyone guide me?
You need to understand how Column and Row work to position its children and how to properly use the Flexible widgets to make every child position as you want.
You have a Row there with two buttons as a children (one RaisedButton and a FloatingActionButton) but they aren't being restricted to any position, so they're both lay down on the start of the Row aligned at the left.
First, let's make it so both fit all the space available horizontally. For that, you'll need to wrap each button with an Expanded.
Right now, you'll probably have two stretched buttons using 50/50 of the space but looking ugly. If so, you'll probably want to wrap each button with a Center so they are centered within the space they have from each Expanded. If not, skip this step. Looking better now, right?
Now, we have 2 buttons evenly centered on the screen with all the space available, but we want to make sure that one is centered and the other on the right, regardless of the screen size. For that, we add a const Spacer() as the first child of the Row so it actually share "invisible" space with all the other 2 siblings;
Right now, you should have what you are looking for, and working flawlessly for all screen sizes.
TL;DR:
Container(
child: Row(
children: <Widget>[
const Spacer(),
Expanded(
child: Center(
child: RaisedButton(
color: Colors.red,
shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(10)),
onPressed: takescrshot,
child: Padding(
padding: const EdgeInsets.all(8.0),
child: Text(
'Next',
style: TextStyle(fontSize: 23, color: Colors.white),
),
),
),
),
),
Expanded(
child: Center(
child: FloatingActionButton.extended(
onPressed: () {
// Add your onPressed code here!
},
label: Text('options'),
icon: Icon(Icons.menu),
backgroundColor: Colors.pink,
),
),
),
],
));
use Spacer widget like this:
new Container
(
child:Row(
children:<Widget>[
Spacer(),
new RaisedButton(
color: Colors.red,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(10)),
onPressed: takescrshot,
child: Padding(
padding: const EdgeInsets.all(8.0),
child: Text(
'Next',
style:
TextStyle(fontSize: 23, color: Colors.white),
),
),
),
Spacer(),
new FloatingActionButton.extended(
onPressed: () {
// Add your onPressed code here!
},
label: Text('options'),
icon: Icon(Icons.menu),
backgroundColor: Colors.pink,
),
])
)
You can do it by faking a same child like the Options button at the start of the Row and making it invisible. Also need to set the Row's maninAxisAlignment to spaceBetween like this..
Container(
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: <Widget>[
new Opacity(
opacity: 0,
child: FloatingActionButton.extended(
onPressed: null,
label: Text('options'),
icon: Icon(Icons.menu),
backgroundColor: Colors.pink,
),
),
new RaisedButton(
color: Colors.red,
shape:RoundedRectangleBorder(borderRadius: BorderRadius.circular(10)),
onPressed: () {},
child: Padding(
padding: const EdgeInsets.all(8.0),
child: Text(
'Next',
style: TextStyle(fontSize: 23, color: Colors.white),
),
),
),
new FloatingActionButton.extended(
onPressed: () {
// Add your onPressed code here
},
label: Text('options'),
icon: Icon(Icons.menu),
backgroundColor: Colors.pink,
),
],
),
)
i'm using Button theme in my project im not able to change the backgroundcolor,text color and also im not able to reduce the height of the button theme can someone please look in to it.
Here's my code:
Widget _signInButton() {
return ButtonTheme(
minWidth: 325,
child: OutlineButton(
splashColor: Colors.grey,
onPressed: () {
signInWithGoogle().whenComplete(() {
Navigator.of(context).push(
MaterialPageRoute(
builder: (context) {
return FirstScreen();
},
),
);
});
},
shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(40)),
highlightElevation: 0,
borderSide: BorderSide(color: Colors.grey),
child: Padding(
padding: const EdgeInsets.fromLTRB(0, 10, 0, 10),
child: Row(
mainAxisSize: MainAxisSize.min,
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Flexible(
flex: 1,
child: Image(image: AssetImage("Assets/google_logo.png"), height: 35.0)),
Expanded(
flex: 1,
child: Padding(
padding: const EdgeInsets.only(left: 10),
child: Text(
'Sign in with Google',
style: TextStyle(
fontSize: 15,
color: Colors.grey,
try adding height: 8.0 or layoutBehavior:ButtonBarLayoutBehavior.constrained in ButtonTheme.
With any one of these options, you can adjust the height and padding of the button.
Note: adjust the height value as you please. I have set it to 8.0 as an example
You can use buttonColor property in ButtonTheme for changing the button's color. Or the color property in Child Button should do the work.
But since you are using an OutlineButton it won't work as it has no area to paint the color on, it just has an outline.
Note:
You should replace the OutlineButton with RaisedButton.
For Text color you can use style property of the Text widget.
A little example code would be as following:
ButtonTheme(
height: 8.0,
buttonColor: Colors.red,
child: RaisedButton(
color: Colors.blue,
child: Text(
'Button',
style: TextStyle(color: Colors.white),
),
onPressed: () {},
),
)
Suppose you have a few nested InkResponse, if you tap on the inner one, all of the parent will actually trigger the splash effect even though they will loose in the tap arena for the right tapped widget. The effect will be something like this:
How to prevent such behavior? How to display the splash only for the tapped widget? In this example image it's being used a Container > Row (with InkReponse) > Icon (also with InkResponse). This will also happen if you use material buttons.
You might want to try IgnorePointer
I encourage you to use Stack widget because you can be able to put together multiple widgets. Here there is an example of a container with inner container and they are both clickable independently,
Stack(
children: [
InkWell(
onTap: (){},
child: Container(
width: 400,
height: 400,
color: Colors.green,
),
),
Positioned(
top: 30,
left: 20,
child: InkWell(
onTap: (){},
child: Container(
width: 100,
height: 100,
color: Colors.red,
),
))
],
)
This worked for me
Center(
child:Container(
width: 100,
height: 100,
child: Card(
child: InkWell(
splashColor: color3,
onTap: () {
},
child: Column(
children: [
SizedBox(
height: 10,
),
IconButton(
splashRadius: 7,
splashColor: Colors.pink,
onPressed: () {},
icon: SvgPicture.asset(
ImageConst.bellIcon,
width: 20,
height: 20,
color: Colors.black,
),
),
SizedBox(
height: 10,
),
Text("text"),
],
),
),
),
),
)
Try to wrap the icon into GestureDetector with the empty handler + Padding.
I have seen that I can't set the width of a ElevatedButton in Flutter. If I have well understood, I should put the ElevatedButton into a SizedBox. I will then be able to set the width or height of the box. Is it correct? Is there another way to do it?
This is a bit tedious to create a SizedBox around every buttons so I'm wondering why they have chosen to do it this way. I'm pretty sure that they have a good reason to do so but I don't see it.
The scaffolding is pretty difficult to read and to build for a beginner.
new SizedBox(
width: 200.0,
height: 100.0,
child: ElevatedButton(
child: Text('Blabla blablablablablablabla bla bla bla'),
onPressed: _onButtonPressed,
),
),
As said in documentation here
Raised buttons have a minimum size of 88.0 by 36.0 which can be
overidden with ButtonTheme.
You can do it like that
ButtonTheme(
minWidth: 200.0,
height: 100.0,
child: RaisedButton(
onPressed: () {},
child: Text("test"),
),
);
match_parent (Full width):
SizedBox(
width: double.infinity, // <-- match_parent
height: double.infinity, // <-- match-parent
child: ElevatedButton(...)
)
or
SizedBox.expand(
child: ElevatedButton(...)
)
Specific width:
SizedBox(
width: 100, // <-- Your width
height: 50, // <-- Your height
child: ElevatedButton(...)
)
With Flutter 2.0 RaisedButton is deprecated and replaced by ElevatedButton.
With that in mind, much more cleaner approach to give custom size to ElevatedButton is minimumSize property of ElevatedButton widget.
Output
Full Code
ElevatedButton(
style: ElevatedButton.styleFrom(
primary: Colors.green,
onPrimary: Colors.white,
shadowColor: Colors.greenAccent,
elevation: 3,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(32.0)),
minimumSize: Size(100, 40), //////// HERE
),
onPressed: () {},
child: Text('Hey bro'),
)
Note: Also keep in mind that same approach can be used in new widgets like TextButton and OutlinedButton using TextButton.styleFrom(minimumSize: Size(100, 40)) and OutlinedButton.styleFrom(minimumSize: Size(100, 40)) respectively.
That's because flutter is not about size. It's about constraints.
Usually we have 2 use cases :
The child of a widget defines a constraint. The parent size itself is based on that information. ex: Padding, which takes the child constraint and increases it.
The parent enforce a constraint to its child. ex: SizedBox, but also Column in strech mode, ...
RaisedButton is the first case. Which means it's the button which defines its own height/width. And, according to material rules, the raised button size is fixed.
You don't want that behavior, therefore you can use a widget of the second type to override the button constraints.
Anyway, if you need this a lot, consider either creating a new widget which does the job for you. Or use MaterialButton, which possesses a height property.
I would recommend using a MaterialButton, than you can do it like this:
MaterialButton(
height: 40.0,
minWidth: 70.0,
color: Theme.of(context).primaryColor,
textColor: Colors.white,
child: new Text("push"),
onPressed: () => {},
splashColor: Colors.redAccent,
)
You need to use an Expanded Widget. But, if your button is on a column, the Expanded Widget fills the rest of the column. So, you need to enclose the Expanded Widget within a row.
Row(children: <Widget>[
Expanded(
flex: 1,
child: RaisedButton(
child: Text("Your Text"),
onPressed: _submitForm,
),
),),])
The new buttons TextButton, ElevatedButton, OutlinedButton etc. are to be changed in a different way.
One method I found is from this article: you need to "tighten" a constrained box around the button.
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text('Kindacode.com'),
),
body: Center(
child: ConstrainedBox(
constraints: BoxConstraints.tightFor(width: 300, height: 200),
child: ElevatedButton(
child: Text('300 x 200'),
onPressed: () {},
),
),
));
}
Use Media Query to use width wisely for your solution which will run the same for small and large screen
Container(
width: MediaQuery.of(context).size.width * 0.5, // Will take 50% of screen space
child: RaisedButton(
child: Text('Go to screen two'),
onPressed: () => null
),
)
You can apply a similar solution to SizeBox also.
My preferred way to make Raise button with match parent is that wrap it with Container.
below is sample code.
Container(
width: double.infinity,
child: RaisedButton(
onPressed: () {},
color: Colors.deepPurpleAccent[100],
child: Text(
"Continue",
style: TextStyle(color: Colors.white),
),
),
)
This piece of code will help you better solve your problem, as we cannot specify width directly to the RaisedButton, we can specify the width to it's child
double width = MediaQuery.of(context).size.width;
var maxWidthChild = SizedBox(
width: width,
child: Text(
StringConfig.acceptButton,
textAlign: TextAlign.center,
));
RaisedButton(
child: maxWidthChild,
onPressed: (){},
color: Colors.white,
);
Simply use FractionallySizedBox, where widthFactor & heightFactor define the percentage of app/parent size.
FractionallySizedBox(
widthFactor: 0.8, //means 80% of app width
child: RaisedButton(
onPressed: () {},
child: Text(
"Your Text",
style: TextStyle(color: Colors.white),
),
color: Colors.red,
)),
You can create global method like for button being used all over the app. It will resize according to the text length inside container. FittedBox widget is used to make widget fit according to the child inside it.
Widget primaryButton(String btnName, {#required Function action}) {
return FittedBox(
child: RawMaterialButton(
fillColor: accentColor,
splashColor: Colors.black12,
elevation: 8.0,
shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(5.0)),
child: Container(
padding: EdgeInsets.symmetric(horizontal: 20.0, vertical: 13.0),
child: Center(child: Text(btnName, style: TextStyle(fontSize: 18.0))),
),
onPressed: () {
action();
},
),
);
}
If you want button of specific width and height you can use constraint property of RawMaterialButton for giving min max width and height of button
constraints: BoxConstraints(minHeight: 45.0,maxHeight:60.0,minWidth:20.0,maxWidth:150.0),
If you want globally change the height and the minWidth of all your RaisedButtons, then you can override ThemeData inside your MaterialApp:
#override
Widget build(BuildContext context) {
return MaterialApp(
...
theme: ThemeData(
...
buttonTheme: ButtonThemeData(
height: 46,
minWidth: 100,
),
));
}
Wrap RaisedButton inside Container and give width to Container Widget.
e.g
Container(
width : 200,
child : RaisedButton(
child :YourWidget ,
onPressed(){}
),
)
We can also use ElevatedButton Widget, it have fixedSize property. latest Flutter version
ElevatedButton(
onPressed: () {},
style: ElevatedButton.styleFrom(
fixedSize: Size(120, 34), // specify width, height
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(
20,
))),
child: Text("Search"),
)
Preview
This worked for me. The Container provides the height and FractionallySizedBox provides the width for the RaisedButton.
Container(
height: 50.0, //Provides height for the RaisedButton
child: FractionallySizedBox(
widthFactor: 0.7, ////Provides 70% width for the RaisedButton
child: RaisedButton(
onPressed: () {},
),
),
),
Try with Container, I think we will have more control.
ElevatedButton(
style: ElevatedButton.styleFrom(textStyle: const TextStyle(fontSize: 20)),
onPressed: () {
buttonClick();
},
child: Container(
height: 70,
width: 200,
alignment: Alignment.center,
child: Text("This is test button"),
),
),
you can do as they say in the comments or you can save the effort and work with RawMaterialButton . which have everything and you can change the border to be circular
and alot of other attributes. ex shape(increase the radius to have more circular shape)
shape: new RoundedRectangleBorder(borderRadius: BorderRadius.circular(25)),//ex add 1000 instead of 25
and you can use whatever shape you want as a button by using GestureDetector which is a widget and accepts another widget under child attribute.
like in the other example here
GestureDetector(
onTap: () {//handle the press action here }
child:Container(
height: 80,
width: 80,
child:new Card(
color: Colors.blue,
shape: new RoundedRectangleBorder(borderRadius: BorderRadius.circular(25)),
elevation: 0.0,
child: Icon(Icons.add,color: Colors.white,),
),
)
)
If the button is placed in a Flex widget (including Row & Column), you can wrap it using an Expanded Widget to fill the available space.
we use Row or Column, Expanded, Container and the element to use example RaisedButton
body: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.start,
children: <Widget>[
Padding(
padding: const EdgeInsets.symmetric(vertical: 10.0),
),
Row(
children: <Widget>[
Expanded(
flex: 2, // we define the width of the button
child: Container(
// height: 50, we define the height of the button
child: Padding(
padding: const EdgeInsets.symmetric(horizontal: 10.0),
child: RaisedButton(
materialTapTargetSize: MaterialTapTargetSize.shrinkWrap,
textColor: Colors.white,
color: Colors.blue,
onPressed: () {
// Method to execute
},
child: Text('Copy'),
),
),
),
),
Expanded(
flex: 2, // we define the width of the button
child: Container(
// height: 50, we define the height of the button
child: Padding(
padding: const EdgeInsets.symmetric(horizontal: 10.0),
child: RaisedButton(
materialTapTargetSize: MaterialTapTargetSize.shrinkWrap,
textColor: Colors.white,
color: Colors.green,
onPressed: () {
// Method to execute
},
child: Text('Paste'),
),
),
),
),
],
),
],
),
),
SizedBox(
width: double.infinity,
child: ElevatedButton(
child: Text("FULL WIDTH"),
onPressed: () {},
),
),
Use ElevatedButton since RaisedButton is deprecated
In my case(the Button is a child of a horizontal ListView), I had to wrap the button with a padding widget and set right/left padding.
Padding(
padding: const EdgeInsets.only(right: 50, left: 50),
child: ElevatedButton(onPressed: () {}, child: Text("LOGOUT")),
)
In my case I used margin to be able to change the size:
Container(
margin: EdgeInsets.all(10),
// or margin: EdgeInsets.only(left:10, right:10),
child: RaisedButton(
padding: EdgeInsets.all(10),
shape: RoundedRectangleBorder(borderRadius:
BorderRadius.circular(20)),
onPressed: () {},
child: Text("Button"),
),
),
If you don't want to remove all the button theme set up.
ButtonTheme.fromButtonThemeData(
data: Theme.of(context).buttonTheme.copyWith(
minWidth: 200.0,
height: 100.0,,
)
child: RaisedButton(
onPressed: () {},
child: Text("test"),
),
);
If you have a button inside a Column() and want the button to take maximum width, set:
crossAxisAlignment: CrossAxisAlignment.stretch
in your Column widget. Now everything under this Column() will have maximum available width
I struggled with this problem and found what my problem was: I defined all my buttons inside a ListView. Does not matter what I did, the width of the button was always the width of the screen. I replaces ListView by Column and voila - suddenly I could control the button width.
Use SizeBox with width and height parameters
SizedBox(
width: double.infinity,
height: 55.0,
child: ElevatedButton(
.....
),
);
You don't need to use other widget to set the size. You can use minimumSize for ElevatedButton
ElevatedButton(
style: ElevatedButton.styleFrom(
minimumSize: const Size(200, 50),
elevation: 0,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(50), // <-- Radius
),
),
onPressed: (){},
child: const Text("Text", style: TextStyle(fontSize: 20, fontWeight: FontWeight.w500),),
),
To set the height and width of Any Button Just Wrap it with SizedBox. you set easily the height and width of any button by Wrape with SizedBox .
And if you want to give Space between Two Any Kind of Widgets then you can Used SizedBox and inside the SizedBox you use height .As much as you want to give..
wrap your ElevatedButton with a Column PLUS add padding for the button for the style:
Column(
children: [
ElevatedButton(
style: TextButton.styleFrom(
backgroundColor: Colors.green,
padding: const EdgeInsets.symmetric(
horizontal: 20 * 1.5, vertical: 20),
),
onPressed: () {},
child: const Text('text')),],),
I want to know that how can I set a width to match parent layout width
new Container(
width: 200.0,
padding: const EdgeInsets.only(top: 16.0),
child: new RaisedButton(
child: new Text(
"Submit",
style: new TextStyle(
color: Colors.white,
)
),
colorBrightness: Brightness.dark,
onPressed: () {
_loginAttempt(context);
},
color: Colors.blue,
),
),
I know about little bit on Expanded widget but Expanded expands view to both direction, i dont know how to do it.
Update:
With Flutter 2.0 RaisedButton is deprecated and replaced by ElevatedButton. you can use minimumSize like this:
ElevatedButton(
style: ElevatedButton.styleFrom(
minimumSize: Size.fromHeight(40), // fromHeight use double.infinity as width and 40 is the height
),
onPressed: () {},
child: Text('Text Of Button'),
)
Old answer for Flutter less than 2.0:
The correct solution would be to use the SizedBox.expand widget, which enforces its child to match its parent's size.
SizedBox.expand(
child: RaisedButton(...),
)
There are many alternatives, which allows for more or less customization:
SizedBox(
width: double.infinity,
// height: double.infinity,
child: RaisedButton(...),
)
or using a ConstrainedBox
ConstrainedBox(
constraints: const BoxConstraints(minWidth: double.infinity),
child: RaisedButton(...),
)
Container(
width: double.infinity,
child: RaisedButton(...),
),
After some research, I found out some solution, and thanks to #Günter Zöchbauer,
I used column instead of Container and
set the property to column CrossAxisAlignment.stretch to Fill match parent of Button
new Column(
crossAxisAlignment: CrossAxisAlignment.stretch,
children: <Widget>[
new RaisedButton(
child: new Text(
"Submit",
style: new TextStyle(
color: Colors.white,
)
),
colorBrightness: Brightness.dark,
onPressed: () {
_loginAttempt(context);
},
color: Colors.blue,
),
],
),
The size attribute can be provided using ButtonTheme with minWidth: double.infinity
ButtonTheme(
minWidth: double.infinity,
child: MaterialButton(
onPressed: () {},
child: Text('Raised Button'),
),
),
or after https://github.com/flutter/flutter/pull/19416 landed
MaterialButton(
onPressed: () {},
child: SizedBox.expand(
width: double.infinity,
child: Text('Raised Button'),
),
),
The simplest way is to use a FlatButton wrapped inside a Container, The button by default takes the size of its parent and so assign a desired width to the Container.
Container(
color: Colors.transparent,
width: MediaQuery.of(context).size.width,
height: 60,
child: FlatButton(
shape: new RoundedRectangleBorder(
borderRadius: new BorderRadius.circular(30.0),
),
onPressed: () {},
color: Colors.red[300],
child: Text(
"Button",
style: TextStyle(
color: Colors.black,
fontFamily: 'Raleway',
fontSize: 22.0,
),
),
),
)
Output:
You can set match parent of the widget by
1) set width to double.infinity :
new Container(
width: double.infinity,
padding: const EdgeInsets.only(top: 16.0),
child: new RaisedButton(
child: new Text(
"Submit",
style: new TextStyle(
color: Colors.white,
)
),
colorBrightness: Brightness.dark,
onPressed: () {
_loginAttempt(context);
},
color: Colors.blue,
),
),
2) Use MediaQuery:
new Container(
width: MediaQuery.of(context).size.width,
padding: const EdgeInsets.only(top: 16.0),
child: new RaisedButton(
child: new Text(
"Submit",
style: new TextStyle(
color: Colors.white,
)
),
colorBrightness: Brightness.dark,
onPressed: () {
_loginAttempt(context);
},
color: Colors.blue,
),
),
#Mohit Suthar,
Found one of the best solution for match parent to width as well as height as below
new Expanded(
child: new Container(
padding: EdgeInsets.all(16.0),
margin: EdgeInsets.all(16.0),
decoration: new BoxDecoration(
color: Colors.white,
borderRadius:
const BorderRadius.all(const Radius.circular(8.0)),
border: new Border.all(color: Colors.black, width: 1.0)),
child: new Text("TejaDroid")),
),
Here you can check that the Expanded Controller acquire whole remain width and height.
For match_parent you can use
SizedBox(
width: double.infinity, // match_parent
child: RaisedButton(...)
)
For any particular value you can use
SizedBox(
width: 100, // specific value
child: RaisedButton(...)
)
The simplest way to give match-parent width or height in the given code above.
...
width: double.infinity,
height: double.infinity,
...
There are many ways to make full width button. But I think you should understand the concept of making full width widgets in different scenarios:
When you are using nested widgets then it is hard to identify width of parent widget. Simply you can't specify width in nested widgets. So you should use either Expanded or Column with CrossAxisAlignment as Strech.
In other cases, you can use media query width or double.infinity.
Here are some examples for Nested widgets and single widget:
First:
Expanded( // This will work for nested widgets and will take width of first parent widget.
child: MaterialButton(
onPressed: () {},
child: const Text("Button Text"),
color: Colors.indigo,
textColor: Colors.white,
)
)
Second:
Column( // This will not work if parent widget Row.
crossAxisAlignment: CrossAxisAlignment.stretch,
children: <Widget>[
MaterialButton(
onPressed: () {},
child: const Text("Button Text"),
color: Colors.indigo,
textColor: Colors.white,
)
]
)
Third:
ButtonTheme( // if use media query, then will not work for nested widgets.
minWidth: double.infinity, //Or use 'width: MediaQuery.of(context).size.width'
child: MaterialButton(
onPressed: () {},
child: const Text("Button Text"),
color: Colors.indigo,
textColor: Colors.white,
)
)
Forth:
SizedBox( // if use media query, then will not work for nested widgets.
width: double.infinity, //Or use 'width: MediaQuery.of(context).size.width'
child: MaterialButton(
onPressed: () {},
child: const Text("Button Text"),
color: Colors.indigo,
textColor: Colors.white,
)
)
Fifth:
Container( // if use media query, then will not work for nested widgets.
width: double.infinity, //Or use 'width: MediaQuery.of(context).size.width'
child: MaterialButton(
onPressed: () {},
child: const Text("Button Text"),
color: Colors.indigo,
textColor: Colors.white,
)
)
From my point of view, recommended will be the First one. Also you can change MaterialButton to ElevatedButton or TextButton or RaisedButton (Depreciated) or any other widget.
Cheers!
you can do that with MaterialButton
MaterialButton(
padding: EdgeInsets.all(12.0),
minWidth: double.infinity,
onPressed: () {},
child: Text("Btn"),
)
You can set the fixedSize.width of the ButtonStyle to a very large number, like double.maxFinite. You can also use Size.fromWidth() constructor if you don't want to specify the height:
ElevatedButton(
child: const Text('Button'),
style: ElevatedButton.styleFrom(
fixedSize: const Size.fromWidth(double.maxFinite),
),
),
Live Demo
The most basic approach is using Container by define its width to infinite. See below example of code
Container(
width: double.infinity,
child:FlatButton(
onPressed: () {
//your action here
},
child: Text("Button"),
)
)
OutlineButton(
onPressed: () {
logInButtonPressed(context);
},
child: Container(
width: MediaQuery.of(context).size.width / 2,
child: Text(
“Log in”,
textAlign: TextAlign.center,
),
),
)
Something like this works for me.
The Following code work for me
ButtonTheme(
minWidth: double.infinity,
child: RaisedButton(child: Text("Click!!", style: TextStyle(color: Colors.white),), color: Colors.pink, onPressed: () {}))
This is working for me in a self contained widget.
Widget signinButton() {
return ButtonTheme(
minWidth: double.infinity,
child: new FlatButton(
onPressed: () {},
color: Colors.green[400],
textColor: Colors.white,
child: Text('Flat Button'),
),
);
}
// It can then be used in a class that contains a widget tree.
This is working for me.
SizedBox(
width: double.maxFinite,
child: RaisedButton(
materialTapTargetSize: MaterialTapTargetSize.shrinkWrap,
child: new Text("Button 2"),
color: Colors.lightBlueAccent,
onPressed: () => debugPrint("Button 2"),
),
),
RaisedButton(
child: Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [Text('Submit')],
)
)
It works for me.
With Flutter 2.0 RaisedButton is deprecated and replaced by ElevatedButton.
minimumSize property of ElevatedButton widget exactly does that.
Example code:
ElevatedButton(
style: ElevatedButton.styleFrom(
primary: Colors.green,
onPrimary: Colors.white,
shadowColor: Colors.greenAccent,
elevation: 3,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(20.0)),
minimumSize: Size(100, 40), //////// HERE
),
onPressed: () {},
child: Text('MyButton'),
)
new SizedBox(
width: 100.0,
child: new RaisedButton(...),
)
Using a ListTile also works as well, since a list fills the entire width:
ListTile(
title: new RaisedButton(...),
),
This one worked for me
width: MediaQuery.of(context).size.width-100,
Wrap your (child widget having a fixed width) with a center widget. This will center your widget:
Center(child:Container(width:250,child:TextButton(child:Text("Button Name),),)
TextButton(
style: ButtonStyle(
backgroundColor: MaterialStateProperty.all(Colors.blue),
fixedSize: MaterialStateProperty.all(
Size(double.maxFinite, 50.0),
),
),
onPressed: () {},
child: Text('Upgrade to Premium'),
),
TRY
Flexible(
child: Row(
children: [
ElevatedButton(
onPressed: () {},
child: Text("love you}"),
),
],
),
),