Develop Reference

How to add width to icon without Materialbutton - Flutter

I want to display a bold icon in my app, but I don't want to use a material icon since it would display a splash effect when I press on it, and I don't want that. Is there a method to make icons wider in Flutter?
My icon:-
My desire result:-
Here is my code:-
Padding(
padding: const EdgeInsets.only(left: 10),
child: Icon(
Icons.add,
color: DarkBlueColor,
),
),

Try to use font_awesome_flutter.
Example code:
FaIcon(FontAwesomeIcons.plus),

You can use icons inside the text widget and assign font size, font weight, font family and package also this makes your icon bold
Text(
String.fromCharCode(CupertinoIcons.exclamationmark_circle.codePoint),
style: TextStyle(
inherit: false,
color: Colors.red,
fontSize: 30.0,
fontWeight: FontWeight.w700,
fontFamily: CupertinoIcons.exclamationmark_circle.fontFamily,
package: CupertinoIcons.exclamationmark_circle.fontPackage,
),
)

If you can achieve the effect by simply removing the splash/ripple, you can set ThemeData.splashColor to transparent.
Theme(
data: ThemeData(
splashColor: Colors.transparent,
highlightColor: Colors.transparent,
),
child: Widget(), // Set your button here
);
Otherwise, if what you meant on "width" of the icon is "boldness" or "weight". Here's a workaround for that.

You can use custom icon just download the add ' + ' icon online and paste it in your assets folder.
Now use that icon like this --
Image.asset('assets/add.png', width: 25, height: 25),
Now you can set the width according to your need.
And if you want to get rid of that splash effect just set
splashColor: Colors.transparent,
highlightColor: Colors.transparent,
hoverColor: Colors.transparent,

simply you can set the splash color to transparent

You can use, Container and RichText combo. As shown below.
InkWell(
child: Container(
width: 150,
height: 50,
decoration: BoxDecoration(color: Colors.green,border: Border.all(width: 1, color: Colors.green),borderRadius: BorderRadius.circular(25) ),
child: Row(
mainAxisAlignment: MainAxisAlignment.center,
crossAxisAlignment: CrossAxisAlignment.center,
children: const [
Icon(
Icons.add,
color: Colors.indigo,
size: 34,
),
Text(
"Add Offer",
style: TextStyle(color: Colors.indigo, fontSize: 20),
),
],
),
),
onTap: (){
doSomething();
},
),
void doSomething() {}

InkWell(
onTap: () {
print("object");
},
child: SizedBox(
child: Material(
shape: const CircleBorder(),
child: Container(
height: 50,
width: 180,
decoration: BoxDecoration(
color: Color(0xff59e7ba),
shape: BoxShape.rectangle,
borderRadius: BorderRadius.circular(25.0),
),
child: ClipRRect(
child: Align(
alignment: Alignment.centerLeft,
child: Row(
crossAxisAlignment: CrossAxisAlignment.center,
mainAxisAlignment: MainAxisAlignment.center,
children: const [
Icon(
Icons.add,
size: 40,
color: Colors.black,
),
Padding(
padding: EdgeInsets.only(left: 10),
child: Text(
"Add Offer",
style: TextStyle(
//set your fonts
//fontFamily: "Font2",
fontSize: 20,
fontWeight: FontWeight.bold,
),
),
)
],
),
),
),
),
),
),
),

Theme(
data: ThemeData(
splashColor: Colors.transparent,
highlightColor: Colors.transparent,
),
child: InkWell(
onTap: () {},
child: Container(
height: 50,
width: 180,
decoration: BoxDecoration(
color: Color(0xff59e7ba),
shape: BoxShape.rectangle,
borderRadius: BorderRadius.circular(25.0),
),
child: Row(
mainAxisAlignment: MainAxisAlignment.center,
children: const [
Icon(
Icons.add,
size: 40,
color: Colors.black,
),
Padding(
padding: EdgeInsets.only(left: 10),
child: Text(
"Add Offer",
style: TextStyle(
fontSize: 20,
fontWeight: FontWeight.bold,
),
),
)
],
),
),
), // Set your button here
)

Flutter: Avoid Text Widget re-centering when Timer is active

I have this flutter app with a Scaffold in which i have put the following container.
This container contains the timer's minute and seconds, and two buttons.
I am trying to avoid the Text widget to re-centers when Timer is active. This seems to happens because the Text widget changes size when a different digit is showed.
I tried to wrap the Text widget with an Expanded widget, but it didn't solve the issue. How can i solve this?
Container(
height: size.height * 0.40,
width: size.width * 0.80,
decoration: BoxDecoration(
color: Color(0xFFf4f6fa),
borderRadius: BorderRadius.circular(29.5)),
child: Column(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Row(
children: [
Expanded(
child: Text(
"${f.format(_minutes)}:${f.format(_seconds)}",
textAlign: TextAlign.center,
style: TextStyle(
fontSize: 80,
color: Color(0xff7165E3),
),
),
),
],
),
Row(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: [
// STOP BUTTON
Container(
decoration: BoxDecoration(
color: Colors.grey[800],
shape: BoxShape.circle,
),
height: 90,
width: 90,
child: ElevatedButton(
style: ButtonStyle(
backgroundColor: MaterialStateProperty.all(
Colors.grey[800]),
shape: MaterialStateProperty.all(
CircleBorder()),
),
onPressed: () {
setState(() {
_stopTimer();
});
},
child: Container(
alignment: Alignment.center,
child: Text(
"Annulla",
style: TextStyle(
fontSize: 14,
fontWeight: FontWeight.bold,
color: Colors.white,
),
),
),
),
),
// START BUTTON
Container(
decoration: BoxDecoration(
shape: BoxShape.circle,
),
height: 90,
width: 90,
child: ElevatedButton(
style: ButtonStyle(
backgroundColor: MaterialStateProperty.all(
Color(0xff7165E3)),
shape: MaterialStateProperty.all(
CircleBorder()),
),
onPressed: () {
_startTimer();
},
child: Container(
alignment: Alignment.center,
child: Text(
"Avvia",
style: TextStyle(
fontSize: 14,
fontWeight: FontWeight.bold,
color: Colors.white,
),
),
),
),
),
],
),
],
),
),

This happens because of the font you are using.
The font you use dose not have negative space. Try to use some font with negative space adjusted. I Roboto Mono is a font that have negative space.
In the above pic the characters take equal space.
pubspec.yaml
google_fonts: ^2.1.0
sport_screen.dart
Text(
"${f.format(_minutes)}:${f.format(_seconds)}",
textAlign: TextAlign.center,
style: GoogleFonts.robotoMono(
fontSize: 80.0,
color: const Color(0xff7165E3),
),
)
refer here for more about fonts and negative space.
Default Font
Monospace Font

You can use FontFeature.tabularFigures()
Example:
Text(
timerText,
style: TextStyle(
fontFeatures: [
FontFeature.tabularFigures(),
],
),
),

How to create row with multiple lines in flutter

I'm trying to replicate a flutter design that looks like this, I was able to achieve something similar by using Listtile widget, my only issue was that the leading icon didn't align vertically with the title. Please is there any other way to achieve this? I tried using a row widget but the multiple line text won't fit into the screen.

You can try this code
Container(
color: Colors.white,
padding: const EdgeInsets.all(10),
child: Row(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Container(
width: 50,
height: 50,
decoration: BoxDecoration(
color: Colors.blue,
shape: BoxShape.circle,
),
child: Icon(
Icons.message,
color: Colors.white,
),
),
SizedBox(width: 10,),
Expanded(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text("Message", style: TextStyle(
fontWeight: FontWeight.bold,
fontSize: 16
),),
Text("How to create row with multiple lines in flutter How to create row with multiple lines in flutter")
],
),
),
],
),
),
Result:-
Please let me know if it work.

You can try as well as my code.
Widget ListItem({
String imageUrl,
String text,
String caption,
double imageSize = 50,
double horizontalSpacing = 15,
double verticalspacing = 20,
bool showDetailIndicatorIcon = true,
GestureTapCallback onTap,
}) {
return InkWell(
onTap: onTap,
child: Container(
margin: EdgeInsets.only(top: 2),
padding: EdgeInsets.symmetric(
horizontal: horizontalSpacing, vertical: verticalspacing),
child: Row(
children: [
ClipRRect(
child: Image.network(
imageUrl,
fit: BoxFit.cover,
height: imageSize,
width: imageSize,
),
borderRadius: BorderRadius.circular(imageSize / 2),
),
Expanded(
child: Container(
margin: EdgeInsets.symmetric(horizontal: 10),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Container(
child: Text(
text,
style: TextStyle(
color: ColorRes.lightWhite,
fontSize: 14,
fontWeight: FontWeight.bold,
),
),
),
SizedBox(height: 5),
Text(
caption,
style: TextStyle(
color: ColorRes.grey,
fontSize: 12,
fontWeight: FontWeight.normal,
),
maxLines: 3,
),
],
),
),
),
],
),
),
);
}
I hope it's work. Please let me know.

how to resolve BOTTOM OVERFLOWED BY 84 PIXLES in Flutter Activity?

I am new to Flutter I have the following activity, when I click in Text Field Keyboard appears and then the warning e.g. BOTTOM OVERFLOWED BY 84 PIXLES also appears how can i be able to resolve this issue? when I tried SingleChildScrollView then empty area("where there is no Widgets") of activity gone white. Is there any Widget that is missing or i made a mistake in my code?
My Activity
here is my code
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:marshal/Payment.dart';
import 'bottomnavigationbar.dart';
class Payment2 extends StatefulWidget {
#override
_Payment2State createState() => _Payment2State();
}
class _Payment2State extends State<Payment2> {
#override
Widget build(BuildContext context) {
final PaymentButton = Material(
elevation: 5.0,
borderRadius: BorderRadius.circular(30.0),
color: Colors.red,
child: MaterialButton(
minWidth: MediaQuery.of(context).size.width,
padding: EdgeInsets.fromLTRB(20.0, 15.0, 20.0, 15.0),
onPressed: () {
Route route = MaterialPageRoute(builder: (context) => Paymentdone());
Navigator.pushReplacement(context, route);
},
child: Text("Payment",
textAlign: TextAlign.center,
style: style.copyWith(
color: Colors.white, fontWeight: FontWeight.w800)),
),
);
return Scaffold(
appBar: AppBar(
title: Text("Payment"),
centerTitle: true,
),
body: Container(
padding: EdgeInsets.all(16),
color: Colors.black,
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
mainAxisAlignment: MainAxisAlignment.start,
children: <Widget>[
Padding(
padding: EdgeInsets.all(25),
),
Text(
"ENTER YOUR CARD DETAILS",
style: TextStyle(
fontWeight: FontWeight.w400,
color: Colors.white,
fontSize: 16),
),
Padding(
padding: EdgeInsets.all(5),
),
Card(
color: Color(0xFF1E1E1E),
child: ListTile(
leading: CircleAvatar(),
title: Container(
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: <Widget>[
Text(
"MasterCard",
style: TextStyle(fontSize: 16, color: Colors.white),
),
Text(
'90 \u0024',
style: TextStyle(fontSize: 16, color: Colors.white),
),
],
),
),
),
),
Padding(
padding: EdgeInsets.all(12),
),
Card(
color: Color(0xFF1E1E1E),
child: cardnumber(),
),
Row(
children: [
Container(
//height: 60,
width: MediaQuery.of(context).size.width * 0.45,
color: Color(0xFF1E1E1E),
child: TextField(
style: style,
maxLength: 5,
cursorColor: Colors.red,
textAlign: TextAlign.left,
keyboardType: TextInputType.number,
decoration: InputDecoration(
hintText: 'MM/YY',
hintStyle: TextStyle(fontSize: 16, color: Colors.white),
border: OutlineInputBorder(
borderRadius: BorderRadius.circular(8),
borderSide: BorderSide(
width: 0,
style: BorderStyle.none,
),
),
filled: true,
contentPadding: EdgeInsets.all(16),
),
),
),
Padding(
padding: EdgeInsets.all(1),
),
Container(
// height: 50,
width: MediaQuery.of(context).size.width * 0.44,
color: Color(0xFF1E1E1E),
child: TextField(
style: style,
maxLength: 3,
cursorColor: Colors.red,
textAlign: TextAlign.left,
keyboardType: TextInputType.number,
decoration: InputDecoration(
hintText: 'CVV',
hintStyle: TextStyle(fontSize: 16, color: Colors.white),
border: OutlineInputBorder(
borderRadius: BorderRadius.circular(8),
borderSide: BorderSide(
width: 0,
style: BorderStyle.none,
),
),
filled: true,
contentPadding: EdgeInsets.all(16),
),
),
),
],
),
Container(
height: 100,
),
PaymentButton,
],
),
),
bottomNavigationBar: BottomNavigation(),
);
}
Widget cardnumber() {
return TextField(
style: style,
maxLength: 16,
cursorColor: Colors.red,
textAlign: TextAlign.left,
keyboardType: TextInputType.number,
decoration: InputDecoration(
hintText: 'XXXX XXXX XXXX 1234',
hintStyle: TextStyle(fontSize: 16, color: Colors.white),
border: OutlineInputBorder(
borderRadius: BorderRadius.circular(8),
borderSide: BorderSide(
width: 0,
style: BorderStyle.none,
),
),
filled: true,
contentPadding: EdgeInsets.all(16),
),
);
}
TextStyle style =
TextStyle(fontFamily: 'Montserrat', color: Colors.white, fontSize: 16.0);
}

using a SingleChildScrollView is the right way to go.
in order to fix the issue you talked about, delete the color attribute from the container, and move it to the scaffold background color attribute:
return Scaffold(
backgroundColor: Colors.black,
appBar: AppBar(
title: Text("Payment"),
centerTitle: true,
),
body: SingleChildScrollView(
child: Container(
padding: EdgeInsets.all(16),
child: Column(
// the rest of the widgets...
),
),
);

Simply add resizeToAvoidBottomInset: false to your Scaffold

Also you can wrap the child inside SingleChildScrollView

Use SingleChildScrollView in body. To avoid white portion problem wrap it inside a Stack.
Stack(
children: <Widget>[
Container(
padding: EdgeInsets.all(16),
color: Colors.black,
),
SingleChildScrollView(
scrollDirection: Axis.vertical,
child: Container(
padding: EdgeInsets.all(16),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
mainAxisAlignment: MainAxisAlignment.start,
children: <Widget>[
Padding(
padding: EdgeInsets.all(25),
),
Text(
"ENTER YOUR CARD DETAILS",
style: TextStyle(
fontWeight: FontWeight.w400,
color: Colors.white,
fontSize: 16),
),
Padding(
padding: EdgeInsets.all(5),
),
Card(
color: Color(0xFF1E1E1E),
child: ListTile(
leading: CircleAvatar(),
title: Container(
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: <Widget>[
Text(
"MasterCard",
style: TextStyle(fontSize: 16, color: Colors.white),
),
Text(
'90 \u0024',
style: TextStyle(fontSize: 16, color: Colors.white),
),
],
),
),
),
),
Padding(
padding: EdgeInsets.all(12),
),
Card(
color: Color(0xFF1E1E1E),
child: cardnumber(),
),
Row(
children: [
Container(
//height: 60,
width: MediaQuery.of(context).size.width * 0.45,
color: Color(0xFF1E1E1E),
child: TextField(
style: style,
maxLength: 5,
cursorColor: Colors.red,
textAlign: TextAlign.left,
keyboardType: TextInputType.number,
decoration: InputDecoration(
hintText: 'MM/YY',
hintStyle: TextStyle(fontSize: 16, color: Colors.white),
border: OutlineInputBorder(
borderRadius: BorderRadius.circular(8),
borderSide: BorderSide(
width: 0,
style: BorderStyle.none,
),
),
filled: true,
contentPadding: EdgeInsets.all(16),
),
),
),
Padding(
padding: EdgeInsets.all(1),
),
Container(
// height: 50,
width: MediaQuery.of(context).size.width * 0.44,
color: Color(0xFF1E1E1E),
child: TextField(
style: style,
maxLength: 3,
cursorColor: Colors.red,
textAlign: TextAlign.left,
keyboardType: TextInputType.number,
decoration: InputDecoration(
hintText: 'CVV',
hintStyle: TextStyle(fontSize: 16, color: Colors.white),
border: OutlineInputBorder(
borderRadius: BorderRadius.circular(8),
borderSide: BorderSide(
width: 0,
style: BorderStyle.none,
),
),
filled: true,
contentPadding: EdgeInsets.all(16),
),
),
),
],
),
Container(
height: 100,
),
PaymentButton,
],
),
),
)
],
)

Flutter :- Inside the PageView Image is not setting to fit the screen on width?

I am using the PageView for the view-pager functionality and showing the image on each page with contains some text and button on each page.
As I am using the Stack widget for putting the view on one another like Relative-layout in Android, But My Image on the First Page of the PageView is not set to fit on the screen
I have tried the below solution like below
1).First link
2). Second Link
But not getting the proper solution, I have tried the below lines of code for it,
class MyTutorialScreen extends StatelessWidget {
#override
Widget build(BuildContext context) {
// TODO: implement build
return Material(
child: PageIndicatorContainer(
pageView: PageView(
children: <Widget>[
Stack(
//////ON THIS SECTION I AM GETTIG PROBLEM
children: <Widget>[
Container(
/////// NEED THE SOLUTION ON THIS SECTION
color: Colors.yellow,
child: Image.asset('images/walkthrough_1.png',
fit: BoxFit.fitWidth),
),
Positioned(
top: 40.0,
right: 40.0,
child: InkWell(
onTap: () {
print("HERE IS I AM");
},
child: Text(
"SKIP",
style: TextStyle(color: Colors.white),
),
)),
Positioned(
bottom: 48.0,
left: 10.0,
right: 10.0,
child: Column(
children: <Widget>[
Padding(
padding: const EdgeInsets.all(16.0),
child: Text(
"Welcome",
style: TextStyle(
fontSize: 20.0,
color: Colors.white,
fontWeight: FontWeight.bold,
),
),
),
Padding(
padding: const EdgeInsets.all(16.0),
child: Text(
"To The Ravindra Kushwaha App. \n One tap Club Destination !",
style: TextStyle(
fontSize: 20.0,
color: Colors.white,
fontWeight: FontWeight.bold,
),
textAlign: TextAlign.center),
),
],
),
)
],
),
Container(
color: Colors.yellow,
child: Image.asset('images/walkthrough_2.png', fit: BoxFit.cover),
),
Container(
color: Colors.blueAccent,
child: Image.asset('images/walkthrough_3.png', fit: BoxFit.cover),
)
],
),
length: 3,
align: IndicatorAlign.bottom,
indicatorSpace: 5.0,
indicatorColor: Colors.white,
indicatorSelectorColor: Colors.purpleAccent,
padding: EdgeInsets.all(10.0),
),
);
}
}
And please check the screen which I am getting from the above code
Above the screen, how would I remove the white color on the right side?
I am using this library for the indicator
page_indicator: ^0.2.1

Please use below line to show image as per device width and height..Try below lines of code and let me know in case of concern
Container(
height: double.maxFinite, //// USE THIS FOR THE MATCH WIDTH AND HEIGHT
width: double.maxFinite,
child:
Image.asset('images/walkthrough_3.png', fit: BoxFit.fill),
)

I have implemented the ViewPager (PageView) functionality , by below lines of code, I am posting the answer for the other which can be helpful for the future user.
I have used this library for the indicator like below
page_indicator: ^0.2.1
Please check the below lines of code for it
import 'package:flutter/material.dart';
import 'package:page_indicator/page_indicator.dart';
class MyTutorialScreen extends StatelessWidget {
#override
Widget build(BuildContext context) {
// TODO: implement build
return Material(
child: PageIndicatorContainer(
pageView: PageView(
physics: const AlwaysScrollableScrollPhysics(),
children: <Widget>[
Stack(
children: <Widget>[
Container(
height: double.maxFinite,
width: double.maxFinite,
child:
Image.asset('images/walkthrough_1.png', fit: BoxFit.fill),
),
Positioned(
top: 40.0,
right: 40.0,
child: InkWell(
onTap: () {
print("HERE IS I AM");
},
child: Text(
"SKIP",
style: TextStyle(color: Colors.white),
),
)),
Positioned(
bottom: 48.0,
left: 10.0,
right: 10.0,
child: Column(
children: <Widget>[
Padding(
padding: const EdgeInsets.all(16.0),
child: Text(
"Welcome",
style: TextStyle(
fontSize: 20.0,
color: Colors.white,
fontWeight: FontWeight.bold,
),
),
),
Padding(
padding: const EdgeInsets.all(16.0),
child: Text(
"To The Ravindra Kushwaha App. \n One tap Club Destination !",
style: TextStyle(
fontSize: 20.0,
color: Colors.white,
fontWeight: FontWeight.bold,
),
textAlign: TextAlign.center),
),
],
),
)
],
),
Stack(
children: <Widget>[
Container(
height: double.maxFinite,
width: double.maxFinite,
child:
Image.asset('images/walkthrough_2.png', fit: BoxFit.fill),
),
Positioned(
top: 40.0,
right: 40.0,
child: InkWell(
onTap: () {
print("HERE IS I AM");
},
child: Text(
"SKIP",
style: TextStyle(color: Colors.white),
),
)),
Positioned(
bottom: 48.0,
left: 10.0,
right: 10.0,
child: Column(
children: <Widget>[
Padding(
padding: const EdgeInsets.all(16.0),
child: Text(
"Welcome",
style: TextStyle(
fontSize: 20.0,
color: Colors.white,
fontWeight: FontWeight.bold,
),
),
),
Padding(
padding: const EdgeInsets.all(16.0),
child: Text(
"To The Ravindra Kushwaha App. \n One tap Club Destination !",
style: TextStyle(
fontSize: 20.0,
color: Colors.white,
fontWeight: FontWeight.bold,
),
textAlign: TextAlign.center),
),
],
),
)
],
),
Stack(
children: <Widget>[
Container(
height: double.maxFinite,
width: double.maxFinite,
child:
Image.asset('images/walkthrough_3.png', fit: BoxFit.fill),
),
Positioned(
bottom: 48.0,
left: 10.0,
right: 10.0,
child: Column(
children: <Widget>[
Padding(
padding: const EdgeInsets.all(16.0),
child: Text(
"Welcome",
style: TextStyle(
fontSize: 20.0,
color: Colors.white,
fontWeight: FontWeight.bold,
),
),
),
Padding(
padding: const EdgeInsets.all(8.0),
child: Text(
"To The Ravindra Kushwaha App. \n One tap Club Destination !",
style: TextStyle(
fontSize: 20.0,
color: Colors.white,
fontWeight: FontWeight.bold,
),
textAlign: TextAlign.center),
),
Container(
padding: const EdgeInsets.all(16.0),
child: RaisedButton(
child: Text("Let's GO!!"),
onPressed: () {},
),
),
],
),
)
],
)
],
),
length: 3,
align: IndicatorAlign.bottom,
indicatorSpace: 5.0,
indicatorColor: Colors.white,
indicatorSelectorColor: Colors.purpleAccent,
padding: EdgeInsets.all(10.0),
),
);
}
}