import NexenPlayer, { NexenPlayerRef } from 'expo-nexen-player';

// ...

const [paused, setPaused] = React.useState(true);
const playerRef = React.useRef < NexenPlayerRef > null;

const onPausePress = () => {
  if (paused) {
    playerRef.current?.play();
  } else {
    playerRef?.current?.pause();
  }
  setPaused((prevState) => !prevState);
};

<NexenPlayer
  ref={playerRef}
  style={styles.player}
  source={{
    source: require('../assets/videos/Street_Fighter_V_Stop_Motion.mp4'),
    poster: 'https://img.youtube.com/vi/KrmxD8didgQ/0.jpg',
    title: "Ryu's Hurricane Kick and Hadoken",
  }}
/>;

// ...