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Add AIVoiceWave composable as pre-build component - #6849
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AIVoiceAgentState, and the driver that eases a visualization toward each state's motion at any frame rate, with the tap bounce and the palette. Refs AND-1692
A voice agent as a single string carrying a wave packet that erupts with speech, drawn on Canvas from the shared driver, with the voice visualizations' default colors, frame clock, accessibility and tap. Refs AND-1692
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Priority: ⬇️ Low Merge Risk: 🔵 Low · up to
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| Check name | Status | Explanation | Resolution |
|---|---|---|---|
| Docstring Coverage |  |
Docstring coverage is 42.31% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 26 functions across 6 files. (2 skipped: … | Write docstrings for the functions missing them to satisfy the coverage threshold. |
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Check name Status Explanation Title check The title clearly identifies the primary change: adding the AIVoiceWave composable. Linked Issues check Check skipped because no linked issues were found for this pull request. Out of Scope Changes check Check skipped because no linked issues were found for this pull request. Description check The description includes the required Goal, Implementation, Testing, and Checklist sections. It links the issue and reports tests and quality checks. The CLA checklist item is omitted, but this is a m… Full details: Description check
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The description includes the required Goal, Implementation, Testing, and Checklist sections. It links the issue and reports tests and quality checks. The CLA checklist item is omitted, but this is a minor documentation gap and the description is otherwise complete.
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Full details: Docstring Coverage
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Docstring coverage is 42.31% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 26 functions across 6 files. (2 skipped: 2 unsupported.)
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Write docstrings for the functions missing them to satisfy the coverage threshold.
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Review comments at
@stream-chat-android-ai-compose/src/main/kotlin/io/getstream/chat/android/ai/compose/ui/component/internal/VoiceVisualizationState.kt:
- Around line 63-69: Filter non-finite values at the VoiceVisualizationState
input boundary: in input, use the existing default expressivity of 1f when
expressivity is not finite, and discard non-finite audioLevel values before
clamping. Apply the same finite-value filter to the level invocation in the
frame loop before assigning current.copy to driver.input.
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⛔ Files ignored due to path filters: 3
stream-chat-android-ai-compose/src/test/snapshots/images/io.getstream.chat.android.ai.compose.ui.component_AIVoiceWaveTest_idle.pngis excluded by!**/*.pngstream-chat-android-ai-compose/src/test/snapshots/images/io.getstream.chat.android.ai.compose.ui.component_AIVoiceWaveTest_speaking.pngis excluded by!**/*.pngstream-chat-android-ai-compose/src/test/snapshots/images/io.getstream.chat.android.ai.compose.ui.component_AIVoiceWaveTest_thinking.pngis excluded by!**/*.png
📒 Files selected for processing: 8
stream-chat-android-ai-compose/api/stream-chat-android-ai-compose.apistream-chat-android-ai-compose/src/main/kotlin/io/getstream/chat/android/ai/compose/ui/component/AIVoiceVisualizationDefaults.ktstream-chat-android-ai-compose/src/main/kotlin/io/getstream/chat/android/ai/compose/ui/component/AIVoiceWave.ktstream-chat-android-ai-compose/src/main/kotlin/io/getstream/chat/android/ai/compose/ui/component/internal/VoiceVisualizationMath.ktstream-chat-android-ai-compose/src/main/kotlin/io/getstream/chat/android/ai/compose/ui/component/internal/VoiceVisualizationState.ktstream-chat-android-ai-compose/src/main/res/values/strings.xmlstream-chat-android-ai-compose/src/test/kotlin/io/getstream/chat/android/ai/compose/ui/component/AIVoiceVisualizationSemanticsTest.ktstream-chat-android-ai-compose/src/test/kotlin/io/getstream/chat/android/ai/compose/ui/component/AIVoiceWaveTest.kt
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The tap handling is the one I'd like fixed before this goes in; the other two are smaller.
…e-visualization-driver
… ignore non-finite input Taps are watched without being consumed, so a clickable on the view or a parent still gets them. An empty palette uses the default colors, a non-finite level or expressivity can no longer stall the motion, and reduced motion follows the system setting live.
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October 20, 2026 13:52
…e-wave # Conflicts: # stream-chat-android-ai-compose/api/stream-chat-android-ai-compose.api
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…ations (#3339) ### Goal Android (GetStream/stream-chat-android#6848, GetStream/stream-chat-android#6849, GetStream/stream-chat-android#6851) and iOS (GetStream/stream-chat-swift#4338) added two visualizations of a voice agent to their AI components. This brings them to `stream-chat-react/ai-components` on v14, with the same motion, so the three platforms look and move alike, and shows them in a new voice mode in the `ai-chatbot` sample. ### Implementation details **Public API**, all from `stream-chat-react/ai-components`: - `VoiceWave`: a single string carrying a wave packet that erupts with speech, its colors flowing along it. - `VoiceGlow`: a soft globe whose color masses orbit inside it and swell with speech. `rendering?: 'auto' | 'css'` (default `auto`). - `useAudioLevel(stream)`: a stable getter for the live level of a `MediaStream` (a microphone or a remote track), for the `audioLevel` prop. - Types: `VoiceAgentState`, `VoiceGlowRendering`, `VoiceVisualizationProps`, `VoiceWaveProps`, `VoiceGlowProps`. Both components take `state` (`idle | connecting | listening | thinking | speaking`), `colors` (one to five CSS colors, defaulting to the theme accent), `expressivity` (0 to 2) and `audioLevel` (a getter read once a frame, so a changing level re-renders nothing; `null` animates speech on its own). Any other `div` prop goes to the root. **Shared motion.** A port of Android's driver: the per-state motion table, frame-rate-independent easing, reduced motion slowing time to 0.07x, the tap bounce and the HSV palette. The speech envelope runs the shader's simplex noise in float32, so the CPU-drawn wave and the GPU glow speak with the same rhythm as iOS. **VoiceWave** is a Canvas2D port of Android's `WaveDrawing`. Its line is 0.6% of the shorter side with Android's 1.5 device-pixel floor, drawn at the screen's density up to 3x as on iOS. In speech it is smoothed on the web: the crests spread out rather than steepen past a slope of 6, and the height rises quickly and settles slowly. While idle, connecting or thinking it is exactly the native wave, and it matches Android's Paparazzi snapshots down to antialiasing. **VoiceGlow** draws with a GLSL ES 1.00 port of the AGSL shader, at 1x (it is all soft gradients). Every glow on a page draws with one shared offscreen WebGL context, as iOS shares one renderer, and copies its frame onto its own 2D canvas. The shader compiles once, and a page with many glows stays under the browser's limit on live contexts. If the context is lost, every glow falls back to CSS and the next glow to mount starts a fresh context; the last glow to unmount releases it. `rendering='css'`, also the fallback where WebGL is unavailable or lost, is one CSS composition of the shader's glow: a color field seen through a mask riding the first mass's orbit, without the shader's fine marbling or its second, fainter riding mass. Its gradients are painted once and only `transform` and `opacity` animate, so the browser's compositor runs the motion and it keeps moving while the main thread is busy. Off screen, its animations pause and its theme and audio reads stop. With GPU acceleration disabled, it holds 60 fps at about 18 to 22% CPU at 300px in headless Chrome. **Behavior shared with iOS:** - Only the shape takes the pointer (the globe or the string); clicks elsewhere in the box pass through. A tap bounces it and a hovering pointer ripples it, and the root's or a parent's `onClick` still fires. - It fades in once its first frame is drawn and pauses while off screen, both the canvas renderers and the CSS glow. - The canvas follows a change of pixel ratio, as on a move to another monitor. - It follows the theme through `--str-chat__ai-voice-color` and `--str-chat__ai-voice-backdrop`, re-read about once a second. - The root is `role="img"` with a name such as "Voice agent: Speaking", translated in all 12 locales. - It is SSR-safe. **`useAudioLevel`** measures RMS on demand over the last 2048 samples (about 43 ms), so the level holds steady through a vowel. The audio graph is torn down when the stream changes and on unmount. **Sample app.** `ai-chatbot` gets a voice mode: a full-panel overlay with the glow for the agent and the wave for the user's microphone. It uses `useSpeechToText` for dictation and `speechSynthesis` to read replies aloud, and returns to listening hands-free. A turn the agent is never seen working on ends after 20 seconds, with its answer if one came in. The send path moved into a shared `useSendAIMessage`. The sample's README and `implementation.md` describe it. **Known differences from native:** - The glow is drawn at 1x where iOS uses 2x. - The CSS glow leaves out the shader's second riding mass and its marbling; a tap sends out a ring instead of a ripple. - The wave's smoothing in speech exists only on the web; it could be proposed to Android and iOS. **Tests:** - Android's driver tests, ported. - Palette and color parsing, and the simplex noise against values read back from the shader on a GPU. - The wave renderer: native in calm states, the steepness cap, and attack and release. - The shared WebGL context: one compile for many glows, losing it, and releasing it. - The CSS glow, including resting off screen, and `useAudioLevel`. - Rejected colors under a browser-like canvas, and the canvas following a pixel-ratio change. - SSR, hydration, axe, class names, i18n and the style-token rules, extended to the new components. ### UI Changes Screenshots and a recording of voice mode are to be added. In the meantime, the sample's voice mode shows both components: run `yarn build`, then `yarn start:ai-chatbot`, and start voice mode from the composer. Microphone access needs Chrome, Edge or Safari.
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## [14.14.0](v14.13.3...v14.14.0) (2026-10-22) ### Features * **ai-components:** add VoiceWave and VoiceGlow voice-agent visualizations ([#3339](#3339)) ([da6f72f](da6f72f)), closes [GetStream/stream-chat-android#6848](GetStream/stream-chat-android#6848) [GetStream/stream-chat-android#6849](GetStream/stream-chat-android#6849) [GetStream/stream-chat-android#6851](GetStream/stream-chat-android#6851) [GetStream/stream-chat-swift#4338](GetStream/stream-chat-swift#4338) * **Message:** add SpokenMessageText for voice-paced AI message text ([#3343](#3343)) ([22abe90](22abe90)), closes [GetStream/Vision-Agents#1128](GetStream/Vision-Agents#1128)
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…ations (#3895) Ticket: https://linear.app/stream/issue/RN-468 ## 🎯 Goal Android (GetStream/stream-chat-android#6848, GetStream/stream-chat-android#6849, GetStream/stream-chat-android#6851), iOS (GetStream/stream-chat-swift#4338) and web (GetStream/stream-chat-react#3339) added two voice-agent visualizations to their AI components. This brings them to `stream-chat-react-native/ai-components` (and `stream-chat-expo/ai-components`) with the same motion, so the platforms look and move alike, and shows them in a new voice mode in `ExpoChatGPTSample`. ## 🛠 Implementation details **Public API** (from the `ai-components` entry point): - `VoiceWave`: a single string carrying a wave packet that erupts with speech, its colors flowing along it. - `VoiceGlow`: a soft globe whose color masses orbit inside it and swell with speech. - `useDictationAudioLevel()`: the microphone's live level while dictation listens, as a Reanimated `SharedValue<number | null>`. - Types `VoiceAgentState`, `VoiceVisualizationProps`, `VoiceWaveProps`, `VoiceGlowProps`, `DictationLevel`; `useDictationState` and `useDictationTranscript` are now exported too. - An optional `voiceVisualization` theme key: `colors` (default palette, the accent color) and `backdropColor` (light or dark look; the system color scheme when unset). Both components take `state` (`idle | connecting | listening | thinking | speaking`), `colors` (one to five colors), `expressivity` (0 to 2) and `audioLevel` (a `SharedValue`, read once a frame on the UI thread; `null` animates speech on its own). Other `View` props go to the root. **How it's built:** - One motion driver, ported from Android's `VoiceVisualizationDriver` (per-state motion table, frame-rate-independent easing, reduced motion at 0.07x, tap bounce, HSV palette, and the `Steady`/`Smooth` level responses for glow and wave). It's plain objects and worklets, advanced in a Reanimated `useFrameCallback`, so the motion runs on the UI thread and keeps going while JS is busy streaming a reply. - `VoiceGlow` is a Skia `RuntimeEffect`: Android's AGSL shader is SkSL, so it's ported nearly verbatim and runs on every Android version. Every glow shares one compiled effect. There is no Canvas/CSS fallback and no `rendering` prop. - `VoiceWave` is a Skia path with a 13-stop gradient, as Android draws it; its speech envelope uses the shader's float32 simplex noise (as on iOS and the web). - Drawn at most 2x for the glow and 3x for the wave, as on iOS. - Touches are only observed on a hit area the size of the shape, so a parent `Pressable` still fires and touches beside the shape pass through. Hover ripples with a mouse or pen. - Accessibility follows native: "Voice agent" as the label and the state as the value; Reduce Motion is honoured. - Where native and web differ, this follows native (e.g. no web-only wave smoothing). **Native dictation:** - New `AIDictationOnLevel` event (no codegen spec change; it goes through the existing `NativeEventEmitter`). Android maps the recognizer's `onRmsChanged`; iOS measures the audio tap in dBFS, throttled to ~30 Hz, tuned on an iPhone for `.measurement` mode (-60 to -35 dBFS). - Fix: iOS dictation now remembers the `AVAudioSession` configuration it found and restores it when dictation ends. It used to leave the session in the `.record` category, which muted all playback in the app after the first dictation and kept other apps' audio ducked. **Sample:** `ExpoChatGPTSample` gets a full-screen voice mode (`VoiceGlow` for the agent, `VoiceWave` on the microphone level). It listens with dictation, sends the transcript, follows the agent's AI state, reads the reply aloud with `expo-speech` and listens again. The send path moved into a shared `useSendAIMessage`, and the demo backend is now called with `platform: 'openai'`, as in the React example (its Anthropic key currently fails `/summarize`). **Entry isolation:** everything lives under `src/ai-components`; `validate-entry-isolation` passes. ## 🎨 UI Changes Voice mode in `ExpoChatGPTSample`, on a physical iPhone 15 Pro Max and the iOS simulator. Screenshots and a recording to be added. ## 🧪 Testing - Unit tests: Android's 22 driver tests and the bounce tests ported; palette, input clamping, simplex noise against GPU readback values, hit areas, wave geometry, rendering, accessibility label and value, theme fallbacks, reduced motion, and the dictation level hook. `yarn test:unit`, `yarn lint`, `yarn typecheck` and `yarn build` pass. - The SkSL shader compiles and renders under CanvasKit, matching Android's Paparazzi snapshot. - iOS simulator: both visualizations render and animate, and the voice-mode loop runs (listening, thinking, speaking, back to listening). Speech recognition itself fails on iOS 27 simulators ("Failed to initialize recognizer"), so transcription was faked there. - Physical iPhone: dictation, the mic level driving the wave, the spoken reply and the full voice loop work. - Not yet tested: Android on a device (the Android level mapping is untuned), SampleApp. ## ☑️ Checklist - [ ] I have signed the [Stream CLA](https://docs.google.com/forms/d/e/1FAIpQLScFKsKkAJI7mhCr7K9rEIOpqIDThrWxuvxnwUq2XkHyG154vQ/viewform) (required) - [x] PR targets the `develop` branch - [x] Documentation is updated (AI components README; the React Native v9 AI integration docs are in a separate getstream.io PR) - [ ] New code is tested in main example apps, including all possible scenarios - [ ] SampleApp iOS and Android - [ ] Expo iOS and Android (iOS done, Android pending)
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Stacked on #6848. Merge after it.
Goal
Refs AND-1692
A voice visualization as a single line, plus what the glow will share with it.
Implementation
AIVoiceWave(state, modifier, colors, expressivity, audioLevel)(public): a string, flat at its ends, carrying a wave packet that erupts with speech, with up to five colours flowing along it in bands.Pathwith a horizontal gradient. The curve, bands and edge fade follow the iOS wave's maths.AIVoiceVisualizationDefaults.colors()(public): the theme's primary colour. An emptycolorslist falls back to it.audioLevelis a lambda read once per frame, so a level changing 30 times a second recomposes nothing. A level or expressivity that isn't a finite number is ignored, so it can't stall the motion.withFrameNanosthat redraws without recomposing and doesn't run in previews or snapshots;clickableon the view or a parent still gets the click.stream_ai_compose_voice_agentandstream_ai_compose_voice_state_*.Testing
verifyPaparazziDebugpasses).clickableon the wave and aclickableparent both get the tap;detekt,spotlessApplyandapiDumpare clean.Checklist
Summary by CodeRabbit
New Features
Tests