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Flutter Text Widget

Text widget is one of the most used widgets in flutter. To display text in flutter applications we have to use a text widget. We can’t imagine an application without text in it. Using this widget we can display the text in single line or multiple lines. The text can be customized with different properties like fontsize, fontfamily, fontweight, color etc.

In this tutorial you will learn how to use a text widget in flutter with example. We will also customize the widget with different properties.

import 'package:flutter/cupertino.dart';
import 'package:flutter/gestures.dart';
import 'package:flutter/material.dart';

void main() {
  runApp(MyApp());
}
class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: Text("Flutter Text Widget"),
        ),
        body: Text("This is text"),
      ),
    );
  }
}

Output:

flutter text widget

How To Create a Text Widget In Flutter ?

We can create a text widget in flutter by calling the constructor of Text class and provide the required arguments. As we can observe from the constuctor below there are no required properties for the text widget. But in order to display the text we have to provide the data property with some value.

Flutter Text Widget Constructor:

const Text(

    String data,
    {Key? key,
    TextStyle? style,
    StrutStyle? strutStyle,
    TextAlign? textAlign,
    TextDirection? textDirection,
    Locale? locale,
    bool? softWrap,
    TextOverflow? overflow,
    double? textScaleFactor,
    int? maxLines,
    String? semanticsLabel,
    TextWidthBasis? textWidthBasis,
    TextHeightBehavior? textHeightBehavior}

) 

Flutter Text Widget Properties

The text widget has many properties for styling and aligning the text. Let’s see each property with an example in detail. Let’s see the properties list below.

  • style
  • textAlign
  • textDirection
  • softWrap
  • overflow
  • textScaleFactor
  • maxlines

style

The text style property of the Text widget is used to apply different styles to the text. The style parameter uses the TextStyle class to apply styles. It has many parameters like color, fontSize, etc. Let’s see each parameter in detail with examples.

  • color
  • fontSize
  • fontWeight
  • fontStyle
  • letterSpacing
  • wordSpacing
  • height
  • foreground
  • background
  • shadows
  • decoration
  • decorationColor
  • decorationStyle
  • fontFamily

color:

When we define text, it will be displayed in black color by default. In some cases, we want to change color for making the app much better. In such cases, we use color parameter.

Text("Flutter Text Widget Tutorial",
style: TextStyle(
        color: Colors.deepOrange
        )
       )

Output:

flutter text widget color

fontSize:

By default the text of the text widget is small. We will use fontSize when we want to increase or decrease the size of the text.

Text("Flutter Text Widget",
style: TextStyle(
        color: Colors.deepOrange,
        fontSize: 30
        )
       )

Output:

flutter text widget fontsize

fontWeight:

The fontWeight parameter is used to define whether the text should be normal, bold, or values ranging from w100 to w900.

FontWeight.Bold

If we want to highlight some text, the bold parameter is used. It will display bold text. It is useful if we want to indicate headings with bold letters.

Text("Flutter Text Widget",
style: TextStyle(
color: Colors.deepOrange,
fontSize: 30,
fontWeight: FontWeight.bold)
)

Output:

flutter text widget fontweight bold

FontWeight.w100 -w900

This gives weight from the lower value to high which means w100 is the least value and w900 gives height weight. Try the values for yourself.

Text("Flutter Text Widget",
style: TextStyle(
color: Colors.deepOrange,
fontSize: 30,
fontWeight: FontWeight.w100)
)

Output:

flutter text widget fontweight

fontStyle:

The fontStyle is used to define the style for the font which can be normal or italic.

Text("Flutter Text Widget",
style: TextStyle(
color: Colors.deepOrange,
fontSize: 30,
fontWeight: FontWeight.normal,
 fontStyle: FontStyle.italic
)
)

Output:

flutter text fontstyle

letterSpacing:

If we feel that the letters are too close we can use letter spacing parameter. The letterSpacing is used to define the amount of space between the letters.

Text("Flutter Text Widget",
            style: TextStyle(
                color: Colors.deepOrange,fontSize: 30,
                fontWeight: FontWeight.normal,
                fontStyle: FontStyle.italic,
                letterSpacing: 20
            )
        )

Output:

flutter text letterspacing

wordSpacing:

The wordSpacing is used to define the amount of space between the words. It will be useful if the words are too close.

Text("Flutter Text Widget",
            style: TextStyle(
                color: Colors.deepOrange,fontSize: 30,
                fontWeight: FontWeight.normal,
                fontStyle: FontStyle.italic,
                wordSpacing: 30
            )
        )

Output:

flutter text wordspacing

foreground:

The foreground parameter is used to style the text foreground properties. It accepts paint as value. Remember that you cannot apply text color when you use foreground.

PaintingStyle.fill

import 'package:flutter/cupertino.dart';
import 'package:flutter/gestures.dart';
import 'package:flutter/material.dart';

void main() {
  runApp(MyApp());
}
class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    var paint = Paint();
    paint.color = Colors.black54;
    paint.style = PaintingStyle.fill;
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          backgroundColor: Colors.deepOrange,
          title: Text("Flutter text widget tutorial"),
        ),
        body: Text("Flutter Text Widget",
            style: TextStyle(
                fontSize: 30,
                fontWeight: FontWeight.normal,
                fontStyle: FontStyle.normal,
                foreground: paint,
            )
        )
      ),
    );
  }
}

Output:

flutter text foreground paintingstyle fill

PaintingStyle.stroke

import 'package:flutter/cupertino.dart';
import 'package:flutter/gestures.dart';
import 'package:flutter/material.dart';

void main() {
  runApp(MyApp());
}
class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    var paint = Paint();
    paint.color = Colors.black54;
    paint.style = PaintingStyle.stroke;
    
return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          backgroundColor: Colors.deepOrange,
          title: Text("Flutter text widget tutorial"),
        ),
        body: Text("Flutter Text Widget",
            style: TextStyle(
                fontSize: 30,
                fontWeight: FontWeight.normal,
                fontStyle: FontStyle.normal,
                foreground: paint,
            )
        )
      ),
    );
  }
}

Output:

flutter text forefround paintingstyle stroke

background:

The background parameter is used to style the text background properties. It accepts paint as value.

PaintingStyle.fill

Text("Flutter Text Widget",
            style: TextStyle(
                fontSize: 30,
                fontWeight: FontWeight.normal,
                fontStyle: FontStyle.normal,
                background: new Paint()
                ..color = Colors.black54
                ..style = PaintingStyle.fill
                ..strokeWidth = 1
            )
        )

Output:

flutter text style background

PaintingStyle.stroke

Padding(
          padding: EdgeInsets.all(10),
            child:Text("Flutter Text Widget",
            style: TextStyle(
              fontSize: 30,
              fontWeight: FontWeight.normal,
              fontStyle: FontStyle.normal,
              background: new Paint()
                ..color = Colors.black54
                ..style = PaintingStyle.stroke
                ..strokeWidth = 1
            )
        )
        )

Output:

text background paintingstyle stroke

shadow:

When we want to display shadow to the text, the shadow parameter is used. The constructor has three arguments color, offset, and blurRadius.We can add multiple shadows using shadows[Shadow1, Shadow2].

  • Color is color of the shadow.
  • Offset is direction from the origin of the text widget.
  • BlurRadius is the amount of space to be blurred.
Text("Flutter Text Widget",
            style: TextStyle(
                color: Colors.deepOrange,
                fontSize: 30,
                fontWeight: FontWeight.normal,
                fontStyle: FontStyle.normal,
                shadows:[Shadow(color:Colors.black54, offset:Offset(1,2), blurRadius: 4 ) ]
            )
        )

Output:

flutter text shadow

decoration:

This decoration parameter is used to decorate the text using TextDecoration class. It has three constants lineThrough, overline, and underline.

TextDecoration.lineThrough

The lineThrough constant of TextDecoration class draws a line horizontally in the center of the text. This line strikes the text making exactly two equal halves horizontally.

Text("Flutter Text Widget",
            style: TextStyle(
                color: Colors.deepOrange,
                fontSize: 30,
                fontWeight: FontWeight.normal,
                fontStyle: FontStyle.normal,
                decoration:TextDecoration.lineThrough
            )
        )

Output:

flutter text decoration linethrough

TextDecoration.overline

The overline constant of TextDecoration class displays a line horizontally above the text.

Container(
          padding: EdgeInsets.all(20),
            child:Text("Flutter Text Widget",
            style: TextStyle(
                color: Colors.deepOrange,
                fontSize: 30,
                fontWeight: FontWeight.normal,
                fontStyle: FontStyle.normal,
                decoration:TextDecoration.overline
            )
        ),
        )

Output:

flutter text decoration overline

TextDecoration.underline

The underline constant of TextDecoration class displays a line horizontally under the text.

Container(
          padding: EdgeInsets.all(20),
            child:Text("Flutter Text Widget",
            style: TextStyle(
                color: Colors.deepOrange,
                fontSize: 30,
                fontWeight: FontWeight.normal,
                fontStyle: FontStyle.normal,
                decoration:TextDecoration.underline
            )
        ),
        )

Output:

flutter text decoration underline

decorationColor:

In the above example, we have applied decoration to text. If we want to apply color to that decoration we will use decorationColor parameter.

Container(
          padding: EdgeInsets.all(20),
            child:Text("Flutter Text Widget",
            style: TextStyle(
                color: Colors.deepOrange,
                fontSize: 30,
                fontWeight: FontWeight.normal,
                fontStyle: FontStyle.normal,
                decoration:TextDecoration.underline,
              decorationColor: Colors.black54
            )
        ),
        )

Output:

flutter text decoration color

decorationStyle:

The decorationStyle parameter uses TextDecorationStyle class to apply a style to the text. The TextDecoration style class has many constants like double, dashed, dotted, solid, wavy.

TextDecorationStyle.double

The double constant of TextDecorationStyle is used to style the decoration applied to the text. It displays a double line over, under, or through the text as per the decoration.

Container(
          padding: EdgeInsets.all(20),
            child:Text("Flutter Text Widget",
            style: TextStyle(
                color: Colors.deepOrange,
                fontSize: 30,
                fontWeight: FontWeight.normal,
                fontStyle: FontStyle.normal,
                decoration:TextDecoration.underline,
              decorationColor: Colors.black54,
                decorationStyle: TextDecorationStyle.double
            )
        ),
        )

Output:

flutter text decoration double

TextDecorationStyle.dashed

Displays a dashed line over, under, or through the text as per the decoration.

Container(
          padding: EdgeInsets.all(20),
            child:Text("Flutter Text Widget",
            style: TextStyle(
                color: Colors.deepOrange,
                fontSize: 30,
                fontWeight: FontWeight.normal,
                fontStyle: FontStyle.normal,
                decoration:TextDecoration.underline,
              decorationColor: Colors.black54,
                decorationStyle: TextDecorationStyle.dashed
            )
        ),
        )

Output:

flutter text decoration dashed

TextDecorationStyle.dotted

Displays a dotted line over, under, or through the text as per the decoration.

 Container(
          padding: EdgeInsets.all(20),
            child:Text("Flutter Text Widget",
            style: TextStyle(
                color: Colors.deepOrange,
                fontSize: 30,
                fontWeight: FontWeight.normal,
                fontStyle: FontStyle.normal,
                decoration:TextDecoration.underline,
                decorationColor: Colors.black54,
                decorationStyle: TextDecorationStyle.dotted
            )
        ),
        )

Output:

flutter text decoration dotted

TextDecorationStyle.solid

Displays a solid line over, under, or through the text as per the decoration.

Container(
          padding: EdgeInsets.all(20),
            child:Text("Flutter Text Widget",
            style: TextStyle(
                color: Colors.deepOrange,
                fontSize: 30,
                fontWeight: FontWeight.normal,
                fontStyle: FontStyle.normal,
                decoration:TextDecoration.underline,
                decorationColor: Colors.black54,
                decorationStyle: TextDecorationStyle.solid
            )
        ),
        )

Output:

flutter text decoration solid

TextDecorationStyle.wavy

Displays a wavy line over, under, or through the text as per the decoration.

Container(
          padding: EdgeInsets.all(20),
            child:Text("Flutter Text Widget",
            style: TextStyle(
                color: Colors.deepOrange,
                fontSize: 30,
                fontWeight: FontWeight.normal,
                fontStyle: FontStyle.normal,
                decoration:TextDecoration.underline,
                decorationColor: Colors.black54,
                decorationStyle: TextDecorationStyle.wavy
            )
        ),
        )

Output:

flutter text decoration wavy

fontFamily:

The fontFamily parameter is used to change the font/typeface of the text. First, we should download a typeface file of our desired font. This file extension will be .ttf.Create a folder named assets/fonts in the root directory of your project. Now copy and paste the file inside the assets/fonts directory.

Update the pubspec.yaml file with the following code. I have added alexbrush.ttf into the assets/fonts folder.

flutter:
  assets:
    - assets/images/
    - assets/fonts/

  fonts:
    - family: alex
      fonts:
      - asset: assets/fonts/alexbrush.ttf

Now to use the font/typeface we have to use the family name. In my case it’s alex. We have to use this name as the value for fontFamily: property.

Container(
          padding: EdgeInsets.all(20),
            child:Text("Flutter Text Widget",
            style: TextStyle(
                color: Colors.deepOrange,
                fontSize: 30,
                fontWeight: FontWeight.normal,
                fontStyle: FontStyle.normal,
                decoration:TextDecoration.underline,
                decorationColor: Colors.black54,
                decorationStyle: TextDecorationStyle.wavy,
                fontFamily: "alex"
            )
        ),
        )

Output:

flutter text fontfamily

textAlign

The textAlign parameter aligns the text position in a parent widget. The constants of TextAlign are start, end, left, right, center, and justify. I am using a container as a parent widget in the below example. Both start and left will give the same result. In the same way, right and end will give the same result. So I am only giving examples for start, end & center.

TextAlign.start

Aligns text to the start of the screen horizontally.

Container(
          padding: EdgeInsets.all(20),
            child:Text("Flutter Text Widget",
            style: TextStyle(
                color: Colors.deepOrange,
                fontSize: 30,
                fontWeight: FontWeight.normal,
            ),
                textAlign: TextAlign.start,
        ),
        )

Output:

flutter text align start

TextAlign.end

Aligns text to the end of the screen horizontally.

Container(
          padding: EdgeInsets.all(20),
            child:Text("Flutter Text Widget",
            style: TextStyle(
                color: Colors.deepOrange,
                fontSize: 30,
                fontWeight: FontWeight.normal,
            ),
                textAlign: TextAlign.end,
        ),
        )

Output:

flutter text align end

TextAlign.center

Aligns the text in the center of the screen horizontally.

 Container(
          width: double.infinity,
          padding: EdgeInsets.all(20),
            child:Text("Flutter Text Widget",
            style: TextStyle(
                color: Colors.deepOrange,
                fontSize: 20,
                fontWeight: FontWeight.normal,
            ),
                textAlign: TextAlign.center,
        ),
        )

Output:

flutter text align center

textDirection

It defines the direction of the text. Generally, we write from left to right, but we can change the direction using textDirection parameter.

 Container(
          width: double.infinity,
          padding: EdgeInsets.all(20),
            child:Text("Flutter Text Widget titorial with example of text direction",
            style: TextStyle(
                color: Colors.deepOrange,
                fontSize: 20,
                fontWeight: FontWeight.normal,
            ),
              textDirection: TextDirection.rtl,
        ),
        )

Output:

flutter text direction right to left

softWrap

When there is not enough space for the text to show, we will use softWrap. We can set either true or false to this parameter. If we set this parameter to true it will display the text else it won’t display the text.

softWrap:flase

If softWrap is set to false the text data is not wrapped. It shows only the amount of text which fits in one line and the rest will be invisible.

 Container(
          width: double.infinity,
          padding: EdgeInsets.all(20),
            child:Text("Flutter Text Widget titorial with example of text direction",
            style: TextStyle(
                color: Colors.deepOrange,
                fontSize: 20,
                fontWeight: FontWeight.normal,
            ),
              softWrap: false,
        ),
        )

Output:

flutter text softwrap false

softWrap:true

If softWrap is set to true, it wraps the text to the next line if the first line is full. It displays all the text of the text widget.

 Container(
          width: double.infinity,
          padding: EdgeInsets.all(20),
            child:Text("Flutter Text Widget titorial with example of text direction",
            style: TextStyle(
                color: Colors.deepOrange,
                fontSize: 20,
                fontWeight: FontWeight.normal,
            ),
              softWrap: true,
        ),
        )

Output:

flutter text softwrap true

overflow

When there is not enough place to show, we can use softWrap. But we can’t say whether there is more text or not. To indicate more text is there, three dots(…) will be displayed at the end of the text.

By using overflow we can show these dots. I am using the ellipsis constant. You can try to use clip, fade, and visible.

 Container(
          width: double.infinity,
          padding: EdgeInsets.all(20),
            child:Text("Flutter Text Widget titorial with example of text direction",
            style: TextStyle(
                color: Colors.deepOrange,
                fontSize: 20,
                fontWeight: FontWeight.normal,
            ),
              overflow: TextOverflow.ellipsis,
        ),
        )

Output:

flutter text overflow

maxLines

We can limit the text space to one line even if the text is longer, using maxlines parameter.

Container(
          width: double.infinity,
          padding: EdgeInsets.all(20),
            child:Text("Flutter Text Widget titorial with example of text direction",
            style: TextStyle(
                color: Colors.deepOrange,
                fontSize: 20,
                fontWeight: FontWeight.normal,
            ),
              maxLines: 1,
        ),
        )

Output:

flutter text maxlines

textScaleFactor

The textScaleFactor scales the text based on the fontSize defined. It simply scales the text size, by multiplying the font size with textScaleFactor.For instance, lets say font size is 20 and textScaleFactor is 2.Now the scaled text size will be equal to 40, which is fontSize*textScaleFactor.

 Container(
          width: double.infinity,
          padding: EdgeInsets.all(20),
            child:Text("Flutter Text Widget titorial",
            style: TextStyle(
                color: Colors.deepOrange,
                fontSize: 15,
                fontWeight: FontWeight.normal,
            ),
              textScaleFactor: 2,
        ),
        )

Output:

flutter text scale factor

That brings an end to Flutter text widget tutorial with examples for all the properties in detail. Let’s learn about some other flutter widgets in the next post. Have a great day!

Do Like and Share if you find this post helpful. Thank you!!

Reference: Flutter Official Documentation.


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AUTHOR

Naresh Pradeep

Hey there! I am the founder of CodesInsider and android developer.I love to code and build apps.


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