1 | import * as React from 'react';
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2 | import { Animated, StyleSheet } from 'react-native';
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3 | import { TypingAnimation } from 'react-native-typing-animation';
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4 | import { useUpdateLayoutEffect } from './hooks/useUpdateLayoutEffect';
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5 | import Color from './Color';
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6 | const TypingIndicator = ({ isTyping }) => {
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7 | const { yCoords, heightScale, marginScale } = React.useMemo(() => ({
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8 | yCoords: new Animated.Value(200),
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9 | heightScale: new Animated.Value(0),
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10 | marginScale: new Animated.Value(0),
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11 | }), []);
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12 |
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13 | useUpdateLayoutEffect(() => {
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14 | if (isTyping) {
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15 | slideIn();
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16 | }
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17 | else {
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18 | slideOut();
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19 | }
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20 | }, [isTyping]);
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21 |
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22 | const slideIn = () => {
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23 | Animated.parallel([
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24 | Animated.spring(yCoords, {
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25 | toValue: 0,
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26 | useNativeDriver: false,
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27 | }),
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28 | Animated.timing(heightScale, {
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29 | toValue: 35,
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30 | duration: 250,
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31 | useNativeDriver: false,
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32 | }),
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33 | Animated.timing(marginScale, {
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34 | toValue: 8,
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35 | duration: 250,
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36 | useNativeDriver: false,
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37 | }),
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38 | ]).start();
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39 | };
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40 |
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41 | const slideOut = () => {
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42 | Animated.parallel([
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43 | Animated.spring(yCoords, {
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44 | toValue: 200,
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45 | useNativeDriver: false,
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46 | }),
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47 | Animated.timing(heightScale, {
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48 | toValue: 0,
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49 | duration: 250,
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50 | useNativeDriver: false,
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51 | }),
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52 | Animated.timing(marginScale, {
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53 | toValue: 0,
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54 | duration: 250,
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55 | useNativeDriver: false,
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56 | }),
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57 | ]).start();
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58 | };
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59 | return (<Animated.View style={[
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60 | styles.container,
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61 | {
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62 | transform: [
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63 | {
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64 | translateY: yCoords,
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65 | },
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66 | ],
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67 | height: heightScale,
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68 | marginBottom: marginScale,
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69 | },
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70 | ]}>
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71 | {isTyping ? (<TypingAnimation style={{ marginLeft: 6, marginTop: 7.2 }} dotRadius={4} dotMargin={5.5} dotColor={'rgba(0, 0, 0, 0.38)'}/>) : null}
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72 | </Animated.View>);
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73 | };
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74 | const styles = StyleSheet.create({
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75 | container: {
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76 | marginLeft: 8,
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77 | width: 45,
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78 | borderRadius: 15,
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79 | backgroundColor: Color.leftBubbleBackground,
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80 | },
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81 | });
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82 | export default TypingIndicator;
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83 | //# sourceMappingURL=TypingIndicator.js.map |
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