mobile-android-design

# Android Mobile Design Master Material Design 3 (Material You) and Jetpack Compose to build modern, adaptive Android applications that integrate seamlessly with the Android ecosystem. ## When to Use This Skill - Designing Android app interfaces following Material Design 3 - Building Jetpack Compose UI and layouts - Implementing Android navigation patterns (Navigation Compose) - Creating adaptive layouts for phones, tablets, and foldables - Using Material 3 theming with dynamic colors - Building accessible Android interfaces - Implementing Android-specific gestures and interactions - Designing for different screen configurations ## Core Concepts ### 1. Material Design 3 Principles **Personalization**: Dynamic color adapts UI to user's wallpaper **Accessibility**: Tonal palettes ensure sufficient color contrast **Large Screens**: Responsive layouts for tablets and foldables **Material Components:** - Cards, Buttons, FABs, Chips - Navigation (rail, drawer, bottom nav) - Text fields, Dialogs, Sheets - Lists, Menus, Progress indicators ### 2. Jetpack Compose Layout System **Column and Row:** ```kotlin // Vertical arrangement with alignment Column( modifier = Modifier.padding(16.dp), verticalArrangement = Arrangement.spacedBy(12.dp), horizontalAlignment = Alignment.Start ) { Text( text = "Title", style = MaterialTheme.typography.headlineSmall ) Text( text = "Subtitle", style = MaterialTheme.typography.bodyMedium, ...