Android UI Compose Implementation Skill

Purpose

Translate UX designs into concrete Jetpack Compose layouts that feel clean and consistent. Keep lists as lists, forms as forms, and navigation discoverable.

When to Use

Use this skill when a UX flow and section structure already exist and the UI needs to be implemented or refined in Kotlin with Compose.

Outputs

• Composable functions for screens and components
• Layout that reflects hierarchy and sections
• Item rows or cards for existing entities
• Forms for creation or editing in a controlled place
• Empty states and hints

Procedure

1. Take the UX specification and identify:
   • The main screen composable.
   • Reusable item composables (for example ListCard, TaskRow).
   • Places where dialogs, sheets or snackbars are required.
2. Implement a clear structure:
   • Top level scaffold with a top bar and optional bottom bar if used elsewhere.
   • A “create new” section that is visually separate from the list of existing items.
   • A LazyColumn or relevant container for lists of items.
3. For existing items:
   • Represent them as rows or cards, not full edit forms.
   • Include:
     • Primary text (for example list name or task title).
     • Optional secondary text (for example due date, list summary).
     • Tappable checkbox or icon where appropriate.
     • A clear tap target to open details or edit.
4. For editing:
   • Use either:
     • An inline expanded row for the item that is currently being edited, or
     • A dialog or bottom sheet with labelled fields.
   • Allow editing one item at a time to avoid visual overload.
5. Implement empty states and hints:
   • Use simple text and spacing to explain what to do.
   • Keep add buttons and initial actions visible in empty states.
6. Align with existing styling:
   • Use Material components already present in the project.
   • Reuse padding, shapes and typography from existing screens.
   • Keep component names consistent with the codebase.

Guardrails

• Do not embed full edit forms inside every list row by default.
• Do not hide navigation in subtle click targets; ensure rows are clearly interactive.
• Do not introduce new design systems, libraries or icon packs.
• Do not alter ViewModel contracts or data models; treat state as given.