如何在子组件上禁用 PanResponder - React Native

Question

朋友，我将采用父母的一个视图，并在视图内部采用一个 TouchableOpacity。我将在主视图上添加 panResponder，当触摸主视图时它工作正常。但是 TouchableOpacity 不起作用，我想删除 TouchableOpacity 上的 panResponder。这样 TouchableOpacity 就可以工作了。

代码：

    this._panResponder = PanResponder.create({
      // Ask to be the responder:
      onStartShouldSetPanResponder: (evt, gestureState) => true,
      onStartShouldSetPanResponderCapture: (evt, gestureState) => true,
      onMoveShouldSetPanResponder: (evt, gestureState) => true,
      onMoveShouldSetPanResponderCapture: (evt, gestureState) => true,


      onPanResponderGrant: (evt, gestureState) => {
        // The gesture has started. Show visual feedback so the user knows
        // what is happening!

        // gestureState.d{x,y} will be set to zero now

        // this.toggleModal()
      },
      onPanResponderMove: (evt, gestureState) => {
        // The most recent move distance is gestureState.move{X,Y}

        // The accumulated gesture distance since becoming responder is
        // gestureState.d{x,y}
        console.log('onPanResponderMove');
      },
      onPanResponderTerminationRequest: (evt, gestureState) => true,
      onPanResponderRelease: (evt, gestureState) => {
        // The user has released all touches while this view is the
        // responder. This typically means a gesture has succeeded
        console.log('onPanResponderRelease');

        this.toggleModal()
      },
      onPanResponderTerminate: (evt, gestureState) => {
        // Another component has become the responder, so this gesture
        // should be cancelled

        console.log('onPanResponderTerminate');

      },
      onShouldBlockNativeResponder: (evt, gestureState) => {
        // Returns whether this component should block native components from becoming the JS
        // responder. Returns true by default. Is currently only supported on android.

        console.log('onShouldBlockNativeResponder');

        return true;
      },
    });
 }

Pan 添加到家长视图中：

render() {
    return (
      <View {...this._panResponder.panHandlers}>
        <TouchableOpacity onPress={this._onPressButton}>
         <Image
          style={styles.button}
          source={require('./myButton.png')}
         />
       </TouchableOpacity>
      </View>
    );
  },

在 mainView 上添加 Pan 时，Button OnPress 事件不起作用。

Answer 1

更改此行，然后内部Touchables 将获得该事件。

当返回true时，它会阻止孩子成为响应者。

  onStartShouldSetPanResponderCapture: (evt, gestureState) => false,

来自document：

所以如果一个父视图想要阻止孩子成为响应者 在触摸开始时，它应该有一个 onStartShouldSetResponderCapture 返回 true 的处理程序。