pan-render.js

render() {
  return (
    <PanGestureHandler
      onGestureEvent={this._onGestureEvent}
      onHandlerStateChange={this._onGestureEvent}>
      <Animated.View
        style={[
          styles.box,
          {
            transform: [{ translateX: this._transX }],
          },
        ]}
      />
    </PanGestureHandler>
  );
}