如何在子组件上禁用PanResponder-React Native

Question

朋友，我将采用一个“父母视图”，而在视图内部则采用一个“ TouchableOpacity”。 我将在主视图上添加panResponder，当触摸主视图时，它可以正常工作。 但是TouchableOpacity无法正常工作，我想删除TouchableOpacity上的panResponder。 这样TouchableOpacity就可以了。

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;
      },
    });
 }

将Pan添加到Parents View上：

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，则内部Touchables将获得事件。

返回true时，将防止孩子成为响应者。

  onStartShouldSetPanResponderCapture: (evt, gestureState) => false,

来自文件 ：

因此，如果父View希望防止孩子在触摸开始时成为响应者，则应具有onStartShouldSetResponderCapture处理函数，该处理函数返回true。