如何使用 function 组件和 react-redux 取消订阅 firebase？

Question

Anyone have any examples how I can unsubscribe from onSnapshot from firebase using react-redux for a react native app using function components?

Answer 1

You need to call the unsubscribe method from the useEffect destructor callback.

useEffect(()=>{
    const subscription = GET_SUBSCRIPTION
    return () => {
        subscription.unsubscribe();
    }
});