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| | import React, { useCallback, useEffect, useRef, useState } from "react";
| | import { Animated, Pressable, Text, View } from "react-native";
| | import * as Haptics from "expo-haptics";
| | import {
| | ExpoSpeechRecognitionModule,
| | useSpeechRecognitionEvent,
| | } from "expo-speech-recognition";
| |
| | interface VoiceButtonProps {
| | onTranscript: (text: string) => void;
| | }
| |
| | const VOICE_BUTTON_SIZE = 72;
| |
| | /**
| | * Tap-to-toggle voice button using on-device speech recognition.
| | * - Tap once: start listening
| | * - Tap again: stop and send transcript
| | * - Long-press while listening: cancel (discard)
| | */
| | export function VoiceButton({ onTranscript }: VoiceButtonProps) {
| | const [isListening, setIsListening] = useState(false);
| | const [transcript, setTranscript] = useState("");
| | const pulseAnim = useRef(new Animated.Value(1)).current;
| | const glowAnim = useRef(new Animated.Value(0)).current;
| | const pulseLoop = useRef<Animated.CompositeAnimation | null>(null);
| | const cancelledRef = useRef(false);
| |
| | // Speech recognition events
| | useSpeechRecognitionEvent("start", () => {
| | setIsListening(true);
| | });
| |
| | useSpeechRecognitionEvent("end", () => {
| | setIsListening(false);
| | stopPulse();
| |
| | // Send transcript if we have one and weren't cancelled
| | if (!cancelledRef.current && transcript.trim()) {
| | onTranscript(transcript.trim());
| | }
| | setTranscript("");
| | cancelledRef.current = false;
| | });
| |
| | useSpeechRecognitionEvent("result", (event) => {
| | const text = event.results[0]?.transcript ?? "";
| | setTranscript(text);
| | });
| |
| | useSpeechRecognitionEvent("error", (event) => {
| | console.error("Speech recognition error:", event.error, event.message);
| | setIsListening(false);
| | stopPulse();
| | setTranscript("");
| | });
| |
| | const startPulse = useCallback(() => {
| | pulseLoop.current = Animated.loop(
| | Animated.sequence([
| | Animated.timing(pulseAnim, {
| | toValue: 1.15,
| | duration: 700,
| | useNativeDriver: true,
| | }),
| | Animated.timing(pulseAnim, {
| | toValue: 1,
| | duration: 700,
| | useNativeDriver: true,
| | }),
| | ])
| | );
| | pulseLoop.current.start();
| | Animated.timing(glowAnim, {
| | toValue: 1,
| | duration: 300,
| | useNativeDriver: true,
| | }).start();
| | }, [pulseAnim, glowAnim]);
| |
| | const stopPulse = useCallback(() => {
| | pulseLoop.current?.stop();
| | pulseAnim.setValue(1);
| | Animated.timing(glowAnim, {
| | toValue: 0,
| | duration: 200,
| | useNativeDriver: true,
| | }).start();
| | }, [pulseAnim, glowAnim]);
| |
| | const startListening = useCallback(async () => {
| | const result = await ExpoSpeechRecognitionModule.requestPermissionsAsync();
| | if (!result.granted) return;
| |
| | cancelledRef.current = false;
| | setTranscript("");
| | startPulse();
| |
| | ExpoSpeechRecognitionModule.start({
| | lang: "en-US",
| | interimResults: true,
| | continuous: true,
| | });
| | }, [startPulse]);
| |
| | const stopAndSend = useCallback(() => {
| | stopPulse();
| | cancelledRef.current = false;
| | ExpoSpeechRecognitionModule.stop();
| | }, [stopPulse]);
| |
| | const cancelListening = useCallback(() => {
| | Haptics.notificationAsync(Haptics.NotificationFeedbackType.Warning);
| | stopPulse();
| | cancelledRef.current = true;
| | setTranscript("");
| | ExpoSpeechRecognitionModule.abort();
| | }, [stopPulse]);
| |
| | const handleTap = useCallback(async () => {
| | Haptics.impactAsync(Haptics.ImpactFeedbackStyle.Medium);
| | if (isListening) {
| | stopAndSend();
| | } else {
| | await startListening();
| | }
| | }, [isListening, stopAndSend, startListening]);
| |
| | const handleLongPress = useCallback(() => {
| | if (isListening) {
| | cancelListening();
| | }
| | }, [isListening, cancelListening]);
| |
| | return (
| | <View style={{ alignItems: "center", justifyContent: "center" }}>
| | {/* Outer pulse ring */}
| | <Animated.View
| | style={{
| | position: "absolute",
| | width: VOICE_BUTTON_SIZE + 24,
| | height: VOICE_BUTTON_SIZE + 24,
| | borderRadius: (VOICE_BUTTON_SIZE + 24) / 2,
| | backgroundColor: isListening ? "rgba(255, 159, 67, 0.12)" : "transparent",
| | transform: [{ scale: pulseAnim }],
| | opacity: glowAnim,
| | }}
| | />
| |
| | {/* Button */}
| | <Pressable
| | onPress={handleTap}
| | onLongPress={handleLongPress}
| | delayLongPress={600}
| | >
| | <View
| | style={{
| | width: VOICE_BUTTON_SIZE,
| | height: VOICE_BUTTON_SIZE,
| | borderRadius: VOICE_BUTTON_SIZE / 2,
| | backgroundColor: isListening ? "#FF9F43" : "#4A9EFF",
| | alignItems: "center",
| | justifyContent: "center",
| | shadowColor: isListening ? "#FF9F43" : "#4A9EFF",
| | shadowOffset: { width: 0, height: 4 },
| | shadowOpacity: 0.4,
| | shadowRadius: 12,
| | elevation: 8,
| | }}
| | >
| | <Text style={{ fontSize: 28 }}>{isListening ? "⏹" : "🎤"}</Text>
| | </View>
| | </Pressable>
| |
| | {/* Label / transcript preview */}
| | <Text
| | style={{
| | color: isListening ? "#FF9F43" : "#5A5A78",
| | fontSize: 11,
| | marginTop: 4,
| | fontWeight: isListening ? "600" : "400",
| | maxWidth: 200,
| | textAlign: "center",
| | }}
| | numberOfLines={2}
| | >
| | {isListening
| | ? transcript || "Listening..."
| | : "Tap to talk"}
| | </Text>
| | </View>
| | );
| | }
|
|
