hmos-multidevice-hardware-access

To fix foldable camera black screens and rotation issues, implement foldStatus-driven camera re-initialization and validate preview/capture rotation correctness. This ensures the preview rebuilds correctly and photos rotate properly after fold/expand transitions.

The best way to check hardware capabilities is using canIUse with SysCap and module.json5 checks before sensor access. This pre-checking guardrail ensures your app explicitly degrades behavior on devices lacking specific hardware support.

To manage sensor lifecycle for heat-plug events, implement lifecycle-safe subscribe and unsubscribe logic paired with reconnect and heat-plug state refresh strategies. This guarantees connection states are refreshed accurately when external devices are attached or removed.

Yes, stride-safe frame processing prevents visual artifacts and black screens in multi-device camera applications. It handles stride differences across device camera hardware to ensure frames are processed correctly without distortion.

To implement fallback strategies for unsupported hardware, generate a declarative hardware-adaptation plan covering primary scene routing, device constraints, and explicit non-support degradation behavior. This routes users to alternative functional paths when hardware is unavailable.