javascript - PanResponder React原生参数

Question

我的 panResponder 有问题我的代码:

componentWillMount() {
    this._panResponder = PanResponder.create({
      onStartShouldSetPanResponder: (evt, gestureState) => false,
      onStartShouldSetPanResponderCapture: (evt, gestureState) => true,
      onMoveShouldSetPanResponder: (evt, gestureState) => Math.abs(gestureState.dy) > 5,
      onMoveShouldSetPanResponderCapture: (evt, gestureState) => true,
      onPanResponderMove: this._handlePanResponderMove,
    });
  }

_handlePanResponderMove(event, gestureState) {
    if (gestureState.dy > current) {
      console.log("Down");
    } else {
      console.log("Up");
    }
    current = gestureState.dy;
  }

componentTag() {
   return tabTag.map((item, id) => {
      return(
        <View key={id} >
            <View {...this._panResponder.panHandlers}>
                <Icon name="ios-reorder" ></Icon>
            </View>
        </View>
      );
    });
}

render() {
   return (
     {this.componentTag}
   );
}

我想知道当我在函数 _handlePanResponderMove 中时我的数组的 id 值，但我无法向函数提供参数

Answer 1

handlePanResponderMove中的事件参数为您提供触摸目标的节点 ID。IEEvent.nativeEvent.target 可以帮助您实现这一点。