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Aligning Remote Control and First Entry to a Single Playback State

2025.11.04Technical Log#playback#product-ui#sound-engine

Refined lock screen remote control and the initial onboarding flow so that playback state references a single consistent source both inside and outside the app.

When controlling playback from the lock screen or Now Playing while the display is off, the track title, progress position, and control responses could diverge subtly from the in-app state. This inconsistency arises when audio state, video state, and the current playback item each reference separate sources of truth.

The playback layer was restructured so that the state observed by remote controls and the state rendered by the UI share a single source. After triggering a pause from the lock screen and returning to the app, state remains coherent; resume behavior and displayed metadata operate consistently.

The initial entry flow was refined in the same pass. The transition from the splash screen to onboarding and its associated animations were stabilized to produce a consistent first-launch experience. Spatial and reverb parameters on the playback path were also fine-tuned so that audio characteristics remain aligned with the visual context of each screen.