5 Ways to Use TAdvSmoothTileList in Delphi UI Design

Boost App UX with TAdvSmoothTileList — Tips and Best Practices

TAdvSmoothTileList (part of TMS Component Pack for Delphi) provides a polished, touch-friendly tile grid ideal for modern desktop and mobile apps. This article shows practical tips and best practices to use it to improve user experience, performance, and accessibility.

1. Choose the right tile size and density

• Clarity: Use larger tiles for touch interfaces (minimum 40–48 px tappable area) and slightly smaller for mouse-heavy desktop apps.
• Consistency: Keep tile sizes uniform across the same screen to reduce cognitive load.
• Content balance: For tiles that show both image and text, use a ⁄₄₀ split (image/text) or place the image as the primary focal point.

2. Design informative, scannable tiles

• Hierarchy: Put the most important information (title) at the top with bold text; supporting info (status, meta) smaller and secondary.
• Icons and thumbnails: Use clear icons or thumbnail images to convey content quickly. Prefer SVG/vector icons where possible for crisp scaling.
• Truncation and tooltips: Truncate long text with ellipsis and provide a tooltip or expandable detail view on hover/tap.

3. Optimize performance for large data sets

• Virtualization: Ensure TAdvSmoothTileList’s built-in virtualization (or owner-draw with on-demand data binding) is used so only visible tiles are rendered.
• Lazy loading: Load images and heavy assets asynchronously. Show lightweight placeholders while content loads.
• Pooling and reuse: Reuse item controls where supported instead of creating/destroying them repeatedly.

4. Smooth interactions and feedback

• Touch gestures: Enable and test swipe, tap, and long-press interactions. Respect platform conventions (e.g., long-press for context menu on mobile).
• Animated transitions: Use subtle animations for adding/removing/reordering tiles to help users track changes. Keep durations short (100–250 ms).
• Immediate feedback: Provide visual states (pressed, focused, disabled) so users know their input registered.

5. Accessibility and keyboard navigation

• Keyboard focus: Ensure tile items are reachable via Tab/Arrow keys; implement clear focus outlines.
• Screen reader text: Provide accessible names and descriptions for tiles (e.g., AccessibleName/AccessibleDescription) so screen readers announce meaningful content.
• High-contrast support: Respect system high-contrast settings and provide sufficient color contrast for text.

6. Layout flexibility and responsiveness

• Adaptive columns: Calculate column count based on available width and minimum tile width to create responsive layouts.
• Orientation changes: Handle orientation/size changes by recalculating layout and reflowing tiles smoothly.
• Grouping and sections: Use headers or separators to group related tiles; consider collapsible groups for long lists.

7. Data binding and state handling

• Separation of concerns: Keep data logic separate from UI. Use a view-model or data layer so tiles bind to lightweight DTOs.
• State persistence: Save selection, scroll position, and expanded/collapsed states between sessions when appropriate.
• Optimistic updates: When modifying items, reflect UI changes immediately and reconcile with backend responses to keep UX responsive.

8. Theming and consistency

• Platform look-and-feel: Match native platform conventions for controls, spacing, and typography to reduce friction.
• Custom themes: Provide theme variables for tile padding, corner radius, and shadows so the tiles fit your app’s visual system.
• Microcopy: Use concise labels and familiar verbs on actions presented from tiles.

9. Testing and monitoring

• Performance profiling: Measure paint times and memory when populating thousands of tiles to find bottlenecks.
• Usability testing: Validate tile size, iconography, and interactions with real users on target devices.
• Crash/analytics: Track crashes and interaction metrics (e.g., taps per session) to detect problematic areas.

10. Common pitfalls to avoid

• Overloading tiles: Don’t cram too much text or controls into a single tile—use drill-in views for detailed tasks.
• Blocking UI on load: Avoid synchronous network or disk loads during drawing; always async.
• Ignoring edge cases: Test with very long titles, missing images, slow networks, and accessibility modes.

Quick checklist for implementation

• Use virtualization and lazy image loading
• Enforce minimum tappable sizes for touch devices
• Provide keyboard and screen-reader support
• Keep animations short and meaningful
• Persist selection/scroll state where it matters

Applying these tips when using TAdvSmoothTileList will improve perceived performance, accessibility, and overall usability of your application.