What is a TextStyles in Flutter
In Flutter, the Text widget allows you to style your text with a rich set of visual and control-based styling options. You can set the text colour, font size, font weight, font family, and much more. You can also use rich text formatting, such as bold, italic, and underline, and you can even apply custom text styles using a TextStyle object.
To create a TextStyle object, you can use the TextStyle constructor and pass in your desired styling options as arguments. For example:
TextStyle myTextStyle = TextStyle(
fontSize: 24,
color: Colors.black,
fontWeight: FontWeight.w500,
fontStyle: FontStyle.italic,
);You can then use this TextStyle object to style a Text widget by passing it to the style property:
Text(
'My styled text',
style: myTextStyle,
)You can also use the DefaultTextStyle widget to apply a default text style to a whole subtree of widgets. This can be useful if you want to ensure a consistent text style throughout your app.
What is Flutter Text.rich
Certainly! Text.rich is a widget in Flutter that allows you to display a paragraph of mixed-style text. It is built on top of the RichText widget and allows you to specify a different TextStyle for each span of text within the paragraph.
Using Text.rich, you can create a paragraph of text that has multiple styles applied to it, such as different font sizes, colours, and weights. This can be useful for creating complex layouts that require a mix of text styles, or for highlighting certain words or phrases within a paragraph.
How to use multiple Text styles in Flutter
To use multiple text styles in Flutter using Text.rich, you can create a TextSpan widget for each span of text that you want to style differently, and specify the desired TextStyle for each TextSpan. You can then pass a list of TextSpan widgets as the children property of a TextSpan widget, which you can pass to the text property of the Text.rich widget.
Here’s an example of how you can use Text.rich to display a paragraph with different text styles:
Text.rich(
TextSpan(
children: [
TextSpan(text: 'This text is '),
TextSpan(text: 'bold', style: TextStyle(fontWeight: FontWeight.bold)),
TextSpan(text: ' and this text is ', style: TextStyle(fontSize: 24)),
TextSpan(text: 'italic', style: TextStyle(fontStyle: FontStyle.italic)),
],
),
)
In this example, the first span of text is styled using the default text style, the second span is styled with a bold font weight, the third span with a font size of 24, and the fourth span are styled with the default style and italic font style, respectively.
You can read more about the Text widget in this post: Flutter Basics – What is and how to use Text widget in Flutter
You can also specify different text styles for individual words or characters within a span of text by creating nested TextSpan widgets. For example:
Text.rich(
TextSpan(
text: '\"',
style: TextStyle(
fontSize: 30,
color: Colors.red,
fontFamily: "Orbitron",
fontWeight: FontWeight.w900,
),
children: <TextSpan>[
TextSpan(
text: 'flutterassets.',
style: TextStyle(
color: Colors.green,
fontFamily: "Orbitron",
fontWeight: FontWeight.w900,
)
),
TextSpan(
text: 'com',
style: TextStyle(
color: Colors.blue,
fontFamily: "Genos",
fontWeight: FontWeight.w900,
decoration: TextDecoration.underline,
decorationColor: Colors.red,
decorationStyle: TextDecorationStyle.dotted,
)
),
TextSpan(
text: '\"',
style: TextStyle(
fontSize: 30,
color: Colors.red,
fontFamily: "Orbitron",
fontWeight: FontWeight.w900,
),
),
],
),
),
What is RichText in Flutter
RichText is a widget in Flutter that displays a paragraph of mixed-style text. It is built on top of the TextSpan widget, which allows you to specify a different TextStyle for each span of text within the paragraph.
Using RichText, you can create a paragraph of text that has multiple styles applied to it, such as different font sizes, colours, and weights. This can be useful for creating complex layouts that require a mix of text styles, or for highlighting certain words or phrases within a paragraph.
How to use RichText in Flutter
To use RichText in Flutter, you can create a TextSpan widget for each span of text that you want to style differently, and specify the desired TextStyle for each TextSpan. You can then pass a list of TextSpan widgets as the children property of a TextSpan widget, which you can pass to the text property of the RichText widget.
Here’s an example of how you can use RichText to display a paragraph with different text styles:
TextStyle defaultStyle = TextStyle(fontSize: 18, color: Colors.black);
TextStyle boldStyle = TextStyle(fontWeight: FontWeight.bold, color: Colors.red);
TextStyle italicStyle = TextStyle(fontStyle: FontStyle.italic, color: Colors.red);
RichText(
text: TextSpan(
children: [
TextSpan(text: 'This text is ', style: defaultStyle),
TextSpan(text: 'bold', style: boldStyle),
TextSpan(text: ' and this text is ', style: defaultStyle),
TextSpan(text: 'italic', style: italicStyle),
],
),
)
This will display the text “This is some bold and italic text.” with the word “bold” in bold and the word “italic” in italic.
Here is another example:
RichText(
text: TextSpan(
text: '\"',
style: TextStyle(
fontSize: 30,
color: Colors.red,
fontFamily: "Orbitron",
fontWeight: FontWeight.w900,
),
children: <TextSpan>[
TextSpan(
text: 'flutterassets.',
style: TextStyle(
color: Colors.green,
fontFamily: "Orbitron",
fontWeight: FontWeight.w900,
)
),
TextSpan(
text: 'com',
style: TextStyle(
color: Colors.blue,
fontFamily: "Genos",
fontWeight: FontWeight.w900,
decoration: TextDecoration.underline,
decorationColor: Colors.red,
decorationStyle: TextDecorationStyle.dotted,
)
),
TextSpan(
text: '\"',
style: TextStyle(
fontSize: 30,
color: Colors.red,
fontFamily: "Orbitron",
fontWeight: FontWeight.w900,
),
),
],
),
),What is the main difference between RichText and Text.rich
RichText is a widget that displays a paragraph of mixed-style text. It displays text that uses multiple different styles. Text.rich is a constructor for the Text widget that allows you to style a paragraph of mixed-style text.
The main difference between RichText and Text.rich is that RichText is a widget and Text.rich is a constructor. As a widget, RichText can be inserted into the widget tree and can be styled and positioned like any other widget. Text.rich, on the other hand, is used to construct a Text widget and cannot be inserted into the widget tree on its own.
