Typography theming ​

Material Design typography theming can be used to create typographic styles that reflect your brand or style by defining a set of type scales which will be used throughout your app. You can use type scales to customize the appearance of text in Material components.

Design and API Documentation ​

• Material Design guidelines: Typography

Usage ​

Style values ​

Style values are a combination of the following:

• Font face name and weight
• Font size
• Letter spacing
• Text transformation (e.g., all caps)

Customization ​

The components included in the Material Design Library reference these themeable text attributes, enabling you to easily change text appearance across your whole application. If you display text in TextViews or create custom components, consider referencing one of these text attributes where it makes sense.

You can change the look of any text style by creating a new style and setting it in your theme:

<style name="TextAppearance.MyApp.DisplaySmall" parent="TextAppearance.Material3.DisplaySmall">
  ...
  <item name="fontFamily">@font/custom_font</item>
  <item name="android:textStyle">normal</item>
  <item name="android:textAllCaps">false</item>
  <item name="android:textSize">64sp</item>
  <item name="android:letterSpacing">0</item>
  ...
</style>

<style name="Theme.MyApp" parent="Theme.Material3.DayNight.NoActionBar">
  ...
  <item name="textAppearanceDisplaySmall">@style/TextAppearance.MyApp.DisplaySmall</item>
  ...
</style>

Note: AppCompat must be used to handle backwards compatibility for sdk < 16. If you don't need to support devices < 16 and aren't using AppCompat, you should set android:fontFamily instead of fontFamily or app:fontFamily.

Downloadable fonts ​

Android O and Android Support Library 26 add support for Downloadable Fonts. This allows you to easily use the entire Google Fonts Open Source collection without bundling a font with your apk. Find more information at https://developers.google.com/fonts/docs/android.

Note: If you want to use a Downloadable Font before Android O, make sure you are using AppCompatTextView or that you are loading the font yourself with ResourcesCompat.getFont().