React Native Lottie View Animation Play/Pause Issue

Question

I'm using React Native Lottie Wrapper to show animation on screen.
I need a functionality to play/pause/resume animation.

Here is my a part of my code:

...

constructor(props) {
  super(props);
  this.state = {
    progress: new Animated.Value(0)
  };
}

static navigationOptions = {
  title: "Details",
  headerStyle: {
    backgroundColor: '#f4511e',
  },
  headerTintColor: '#fff',
  headerTitleStyle: {
    fontWeight: 'bold',
  },
  headerTruncatedBackTitle: 'List'
};

componentDidMount() {
  this.animation.play();
}

playLottie() {
 console.log('play');
}

pauseLottie() {
  console.log('pause');
}

render() {
  return (
    <View>
      <Animation
        ref={animation => { this.animation = animation; }}
        source={require('../../../../assets/anim/balloons.json')}
        style={{height: 300, width: '100%'}}
        loop={false}
        progress={this.state.progress}
      />
      <Text>Course with id: {this.props.navigation.state.params.courseId}</Text>
        <Button 
          onPress={this.playLottie}
          title="Play Lottie"
          color="#841584"
          accessibilityLabel="Play video"
        />
        <Button 
          onPress={this.pauseLottie}
          title="Pause Lottie"
          color="#841584"
          accessibilityLabel="Pause video"
        />
     </View>
    );
  }
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
    backgroundColor: '#fff',
    alignItems: 'center',
    justifyContent: 'center',
  },
});

...

The animation is playing well but I can't pause it and resume it.
Does anyone have a solution for this problem?

P.S. I have tried to use this.animation in pauseLottie() method but it said that is undefined.

Thank you in advance!

Answer 1

You can pause and play Lottie animation by changing the speed prop, where speed={0} puts LottieView component in pause and speed={1} plays it at normal speed.

Here is an example:

playAnimation = () => {
    this.setState({speed: 1})
}

pauseAnimation = () => {
    this.setState({speed: 0})
}

<LottieView
    source={this.state.sourceAnimation}
    speed={this.state.speed} />