TextTheme

TextTheme is a way to define consistent text styles across an app. It contains a set of text styles that can be applied to Text widgets in Flutter.

Here are some common examples of TextTheme usage:

• Defining a default text style for an app:

final ThemeData themeData = ThemeData(
  textTheme: TextTheme(
    bodyText2: TextStyle(fontSize: 16.0, fontWeight: FontWeight.w500),
  ),
);

In this example, we define a default text style for the app's bodyText2 Text widget. This style will be used throughout the app unless explicitly overridden.

• Overriding a specific text style for a widget:

Text(
  'Hello, world!',
  style: Theme.of(context).textTheme.headline1,
);

In this example, we override the default text style for the Text widget by using the headline1 style from the app's textTheme.

Overall, TextTheme provides a convenient way to maintain consistent text styles throughout an app, making it easier to manage and update text styles as needed.

Parameters

• headline1: The largest style in the text theme hierarchy. Typically used for large headings.

• headline2: A slightly smaller style than headline1. Used for subheadings or secondary headings.

• headline3: A smaller style than headline2. Used for tertiary headings or other similar purposes.

• headline4: A smaller style than headline3. Used for quaternary headings or other similar purposes.

• headline5: A smaller style than headline4. Used for quinary headings or other similar purposes.

• headline6: A smaller style than headline5. Used for senary headings or other similar purposes.

• subtitle1: A style for longer titles or subtitles.

• subtitle2: A style for shorter titles or subtitles.

• bodyText1: A style for large bodies of text.

• bodyText2: A style for small bodies of text.

• caption: A style for captions or other small, auxiliary pieces of text.

• button: A style for text used in buttons or other similar interactive elements.

• overline: A style for overlined text.