Building an app for the Multi-Device world
summary
Practical guide to making Android apps adapt from phones to tablets, foldables, TVs and desktop-style windows: use Jetpack WindowManager 1.5 with the new large/extra‑large breakpoints and opt into Material3 adaptive 1.2, test resizability (note minimum window size 386×352 dp) and handle density changes; support multiple instances via activity launchMode + NEW_TASK + ACTIVITY_MULTIPLE_TASK and drag‑out intents with DRAG_FLAG_GLOBAL_SAME_APPLICATION and DRAG_FLAG_START_INTENT_ON_HANDLED_DRAG; use Compose onVisibilityChanged and API 35 presentation listeners.
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chapters (20)
- 0:00Multi-device Android apps intro
- 1:04Core adaptive app principles
- 2:31Optimizing for form factors
- 3:34Desktop windowing challenges
- 4:37Three adaptive app aspects
- 6:46Jetpack window breakpoints
- 7:08What is desktop windowing
- 8:38UI adaptation beyond stretching
- 9:23Multiple app instances support
- 10:04Activity launch modes config
- 11:52Starting instances from system UI
- 12:36Drag and drop for instances
- 14:44Customizing app header bars
- 17:18Multi-window visibility
- 18:23Video pause on visibility change
- 19:53Window occlusion in Android 15
- 22:19External display best practices
- 25:37Adaptive app examples demo
- 26:23Single codebase for Android
- 27:04Key takeaways
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