How can I implement custom gestures in React Native?

How can I implement custom gestures in React Native?

You can implement custom gestures in React Native using the PanResponder API or by using libraries like react-native-gesture-handler.

Can you give me an example of using PanResponder?

Sure! Here's a simple example:

import React, { useRef } from 'react';
import { View, PanResponder } from 'react-native';

const MyComponent = () => {
  const panResponder = useRef(
    PanResponder.create({
      onMoveShouldSetPanResponder: (evt, gestureState) => true,
      onPanResponderMove: (evt, gestureState) => {
        // Handle gesture movement
      },
    })
  ).current;

  return <View {...panResponder.panHandlers} style={{ width: 100, height: 100, backgroundColor: 'blue' }} />;
};

This sets up a basic PanResponder that you can customize further.

What about using react-native-gesture-handler?

With react-native-gesture-handler, you can use the GestureDetector component. Here's a quick example:

import React from 'react';
import { View } from 'react-native';
import { GestureDetector, Gesture, GestureHandlerRootView } from 'react-native-gesture-handler';

const MyComponent = () => {
  const gesture = Gesture.Pan().onUpdate((event) => {
    // Handle gesture updates
  });

  return (
    <GestureHandlerRootView>
      <GestureDetector gesture={gesture}>
        <View style={{ width: 100, height: 100, backgroundColor: 'red' }} />
      </GestureDetector>
    </GestureHandlerRootView>
  );
};

This allows for more complex gestures and better performance.