Cross-platform application and UI scalability
summary
Describes building a cross‑platform stereoscopic image/video viewer in QtQuick/QML that runs on Windows, Linux, macOS and Android and the concrete scaling choices that made it usable: use density buckets (mdpi, hdpi, xhdpi etc.) on Android, prefer vector icons or multiple bitmap sets for 1x/2x/3x assets, handle Windows non‑integer DPI since 8.1, and round layout math to avoid cumulative pixel drift. The app runs but requires per‑platform resource packing, explicit high‑DPI canvas redraws and lots of device testing.
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chapters (11)
- 0:00Introduction
- 5:49Pixel density and units
- 10:46High-DPI screen support
- 16:27Android UI scaling
- 21:50Platform scaling differences
- 27:18Resources for different densities
- 31:58Icon adaptation
- 35:53UI element sizes
- 39:03Screen size adaptation
- 41:11Visualization and VR
- 44:09Summary and Q&A
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