1 link tagged with all of: user-interface + drag-and-drop + proof-of-concept + interaction-design + mobile
Links
The article discusses a simplified two-step method for drag-and-drop interactions on mobile devices. Instead of the traditional method, users pick an item first and then place it, using an interactive duplicate that follows their scroll. This is a proof of concept rather than a full library.
drag-and-drop ✓
mobile ✓
user-interface ✓
proof-of-concept ✓
interaction-design ✓