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Getting your apps ready for Material 3 Odin Asbjørnsen Android Developer @ DNB Fatih Giris Android Lead @ DNB

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What this talk is

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What this talk is A guide to start using or adopting Material 3

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What this talk is not

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What this talk is not A complete documentation and guide for Material 3

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Agenda • Colors • Typography • Major components • Material 2 to Material 3 • Material 3 at DNB • Take-aways & learnings

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Colors

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Colors • Key colors • Accent • Neutral 
 
 
 
 
 


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Key colors https://m3.material.io/styles/color/the-color-system/key-colors-tones

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Colors • Key colors • Accent • Neutral • Additional colors • Error • Product speci fi c

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Additional colors https://m3.material.io/styles/color/the-color-system/key-colors-tones

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Tonal palettes

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Tonal palettes 1 color 13 tones

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Tonal palettes https://m3.material.io/styles/color/the-color-system/key-colors-tones

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Tonal palettes https://m3.material.io/styles/color/the-color-system/key-colors-tones

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Why tonal palettes?

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Why tonal palettes? • Establish context in the visual hierarchy

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Primary color’s tone usage in different components Why tonal palettes?

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Different surface tones in M3 Surface tones

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Surface tones Navigation bar Elevated card

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Why tonal palettes? • Establish context in the visual hierarchy • Establish various level of meaning with the same color

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Outlined button states Why tonal palettes?

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Why tonal palettes? • Establish context in the visual hierarchy • Establish various level of meaning with the same color • Accessible contrast ratios

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https://m3.material.io/styles/color/the-color-system/accessibility Why tonal palettes?

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https://m3.material.io/styles/color/the-color-system/accessibility Why tonal palettes?

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How to generate tonal palettes? 🤔

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https://m3.material.io/theme-builder

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https://m3.material.io/theme-builder

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https://m3.material.io/theme-builder

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https://m3.material.io/theme-builder

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Colors https://m3.material.io/styles/color/the-color-system/color-roles

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M3 Colors in Compose MaterialTheme.kt @Composable fun MaterialTheme( colorScheme: ColorScheme = MaterialTheme.colorScheme, shapes: Shapes = MaterialTheme.shapes, typography: Typography = MaterialTheme.typography, content: @Composable () -> Unit ) {

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M3 Colors in Compose MaterialTheme.kt @Composable fun MaterialTheme( colorScheme: ColorScheme = MaterialTheme.colorScheme, shapes: Shapes = MaterialTheme.shapes, typography: Typography = MaterialTheme.typography, content: @Composable () -> Unit ) {

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class ColorScheme( primary: Color, onPrimary: Color, primaryContainer: Color, onPrimaryContainer: Color, inversePrimary: Color, secondary: Color, onSecondary: Color, secondaryContainer: Color, onSecondaryContainer: Color, tertiary: Color, onTertiary: Color, tertiaryContainer: Color, onTertiaryContainer: Color, M3 Colors in Compose ColorScheme.kt

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secondaryContainer: Color, onSecondaryContainer: Color, tertiary: Color, onTertiary: Color, tertiaryContainer: Color, onTertiaryContainer: Color, background: Color, onBackground: Color, surface: Color, onSurface: Color, surfaceVariant: Color, onSurfaceVariant: Color, surfaceTint: Color, inverseSurface: Color, inverseOnSurface: Color, error: Color, onError: Color, errorContainer: Color, onErrorContainer: Color, M3 Colors in Compose ColorScheme.kt

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onSurfaceVariant: Color, surfaceTint: Color, inverseSurface: Color, inverseOnSurface: Color, error: Color, onError: Color, errorContainer: Color, onErrorContainer: Color, outline: Color, outlineVariant: Color, scrim: Color, ) { M3 Colors in Compose ColorScheme.kt

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M3 Colors in XML theme.xml …

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M3 Colors in XML theme.xml <item name="colorPrimary"></item> <item name="colorOnPrimary"></item> <item name="colorPrimaryInverse"></item> <item name="colorPrimaryContainer"></item> <item name="colorOnPrimaryContainer"></item> <item name="colorSecondary"></item> <item name="colorOnSecondary"></item> <item name="colorSecondaryContainer"></item> <item name="colorOnSecondaryContainer"></item> <item name="colorTertiary"></item> <item name="colorOnTertiary"></item> <item name="colorTertiaryContainer"></item> <item name="colorOnTertiaryContainer"></item> <item name="android:colorBackground"></item> <item name="colorOnBackground"></item> <item name="colorSurface"></item> <item name="colorOnSurface"></item> <item name="colorSurfaceVariant"></item> <item name="colorOnSurfaceVariant"></item>

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M3 Colors in XML theme.xml

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28 color attributes 🤯

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Which color attribute affects which component?

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https://m3.material.io/theme-builder

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https://github.com/oas004/Material3Playground

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Typography

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Typography • 5 roles 
 
 
 
 
 
 
 
 
 


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Typography • 5 roles • Display 
 
 
 
 
 
 
 
 https://m3.material.io/styles/typography/applying-type

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Typography • 5 roles • Display • Headline 
 
 
 
 
 
 https://m3.material.io/styles/typography/applying-type

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Typography • 5 roles • Display • Headline • Title 
 
 
 
 https://m3.material.io/styles/typography/applying-type

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Typography • 5 roles • Display • Headline • Title • Body 
 
 https://m3.material.io/styles/typography/applying-type

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Typography • 5 roles • Display • Headline • Title • Body • Label https://m3.material.io/styles/typography/applying-type

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Major Components

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Top App Bars • Provide content and actions • Support for dynamic colors • No drop shadow

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Top App Bars • 4 types • Center-aligned • Small • Medium • Large

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Cards • 3 types • Outlined Card • Elevated Card • Filled Card

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Cards • 3 types • Outlined Card • Elevated Card • Filled Card

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Cards • 3 types • Outlined Card • Elevated Card • Filled Card

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Switch • More accessible • New color mapping meets non text contrast requirements • Optional icon on the thumb • Taller and wider layout track

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Switch M2 M3

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Switch

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Navigation Bar • New color mapping • No shadow • Pill shape as an active indicator • Taller height in M3

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Navigation Bar • 3 - 5 destinations with and without label text • Provide short and meaningful label texts 
 


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• 3 - 5 destinations with and without label text • Provide short and meaningful label texts • Optional badge Navigation Bar

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Chips • Represent options in a speci fi c context • 4 different types

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Chips M2 M3

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Chips M2 M3

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Chips M2 M3

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Chips M2 M3

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Buttons https://m3.material.io/components/all-buttons

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Buttons https://m3.material.io/components/all-buttons

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Buttons https://m3.material.io/components/all-buttons

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Buttons https://m3.material.io/components/all-buttons

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Buttons https://m3.material.io/components/all-buttons

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Material 2 to Material 3

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Material 2 to Material 3 • When should you migrate? • As soon as possible https://developer.android.com/jetpack/compose/designsystems/material2-material3

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Material 2 to Material 3 • Phased approach for Compose 1. Add M3 dependency alongside M2 dependency 2. Add M3 version of your app’s theme alongside M2 version of your app’s theme. 3. Migrate individual modules, screens, (or composables) to M3. 4. Once fully migrated, remove M2 from the app.

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Material 2 to Material 3 • No phased approach for Views 1. Replace the MaterialComponents with Material3 in your parent theme 2. Con fi gure your app theme

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Material 3 at DNB

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Material 3 at DNB • Custom design system called Eufemia

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Design System at DNB www.eufemia.dnb.no

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Design System at DNB Eufemia Android use Material Components

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Design System at DNB Eufemia Android use Material Components App1 App2

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Design System at DNB Eufemia Android use Material Components

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Design System at DNB Eufemia Android (View) Eufemia Android (Compose) use Material Components (View) use Material Components (Compose) Eufemia Android

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How to start using M3?

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Material 3 at DNB Eufemia Android (View) Eufemia Android (Compose) use M2 Components (View) use M2 Components (Compose) Eufemia Android

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Material 3 at DNB Eufemia Android (View) Eufemia Android use M2 Components (View) use M2 Components femia droid

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Material 3 at DNB Eufemia Android (View) Eufemia Android use M3 Components (View) use M2 Components femia droid

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Material 3 at DNB theme.xml

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Material 3 at DNB theme.xml

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Material 3 at DNB theme.xml

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Material 3 at DNB theme.xml <item name="colorPrimary"></item> <item name="colorOnPrimary"></item> <item name="colorPrimaryInverse"></item> <item name="colorPrimaryContainer"></item> <item name="colorOnPrimaryContainer"></item> <item name="colorSecondary"></item> <item name="colorOnSecondary"></item> <item name="colorSecondaryContainer"></item> <item name="colorOnSecondaryContainer"></item> <item name="colorTertiary"></item> <item name="colorOnTertiary"></item> <item name="colorTertiaryContainer"></item> <item name="colorOnTertiaryContainer"></item> <item name="android:colorBackground"></item> <item name="colorOnBackground"></item> <item name="colorSurface"></item> <item name="colorOnSurface"></item> <item name="colorSurfaceVariant"></item>

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Material 3 at DNB Eufemia Android (View) Eufemia Android (Compose) use M3 Components (View) use M2 Components (Compose) Eufemia Android

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Material 3 at DNB Eufemia Android (View) Eufemia Android (Compose) use M3 Components (View) use M2 Components (Compose) Eufemia Android

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Material 3 at DNB Eufemia Android (View) Eufemia Android (Compose) use M3 Components (View) use M2 + M3 Components (Compose) Eufemia Android

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Material 3 at DNB Material3Theme( colorScheme = getMaterial3ColorScheme(), typography = provideM3Typography(), ) {} Theme.kt

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Material 3 at DNB Theme.kt Material3Theme( colorScheme = getMaterial3ColorScheme(), typography = provideM3Typography(), ) { Material2Theme( colors = getMaterialColors(), typography = provideM2Typography(), content = content ) }

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Material 3 at DNB Eufemia Android (View) Eufemia Android (Compose) use M3 Components (View) use M2 + M3 Components (Compose) Eufemia Android

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Material 3 at DNB Eufemia Android use Material Components App1 App2 ❌ ❌

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Takeaways & learnings

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Takeaways & learnings • Color • Talk with the designers fi rst • Lots of color attributes • Tonal palette

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Takeaways & learnings • Typography • 5 different roles • M2 to M3 mapping

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Takeaways & learnings • Components • Navigation bar, buttons, chips, switches visually different • Toggle buttons -> Segmented buttons • Scaffold APIs are different • Screenshot tests for all components

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THANKS ♥

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QUESTIONS @oas004 @fatih_grs