在反应导航中，如何防止 AppBar 固定在顶部？ 我希望它在滚动时消失

Question

I am working with react-navigation 5.x and I want my AppBar to disappear when I scroll down.

This is how my navigation looks like:

import React from 'react';
import { createDrawerNavigator } from '@react-navigation/drawer';

export default function createAppContainer(AppNavigator) {
  const { Navigator, Screen } = createDrawerNavigator();
  // eslint-disable-next-line react/prop-types
  return ({ AppBar, DrawerContent, ...rest }) => (
    <Navigator drawerContent={DrawerContent}>
      <Screen
        name="inner-drawer"
        component={(props) => (
          <AppNavigator
            headerMode="screen"
            screenOptions={AppBar ? {
              header: AppBar,
            } : undefined}
            {...props}
          />
        )}
        {...rest}
      />
    </Navigator>
  );
}

In react-navigation, how can I prevent the AppBar to be fixed top?

Answer 1

UseAnimated.diffClamp() as the documentation said:

This is useful with scroll events, for example, to show the navbar when scrolling up and to hide it when scrolling down.