React Native BottomTabNavigator remove white space

Question

I'm facing a problem with my Bottom Tab Navigator. I get a white space between my tabs and the end of the screen of my iPhone 11 Simulator. On a iPhone 8 Simulator I don't have these white space. There is also a small white space above the Tabs. How can I remove this space? I'm not able to find a solution and I'm running out of time. Thanks!

This is my implementation so far:

DetailsNavigation.js

  const DetailsNavigation = ({ route }) => {
  return (
    <Tab.Navigator
      tabBarOptions={{
        activeBackgroundColor: colors.primary,
        activeTintColor: colors.secondary,
        inactiveBackgroundColor: colors.secondary,
        inactiveTintColor: colors.primary,
        labelStyle: {
          fontSize: 13,
          marginBottom: 5,
        },
      }}
    >
      <Tab.Screen
        name="DetailsScreen"
        options={{
          title: "Portfolio",
          tabBarIcon: ({ color, size }) => (
            <MaterialIcons name="account-box" size={24} color={color} />
          ),
        }}
        children={() => <DetailsScreen worker={route.params} />}
      />
      <Tab.Screen
        name="RatingScreen"
        component={RatingScreen}
        options={{
          title: "Bewertungen",
          tabBarIcon: ({ color, size }) => (
            <MaterialIcons name="star" size={24} color={color} />
          ),
        }}
      />
    </Tab.Navigator>
  );
};
export default DetailsNavigation;

DetailsNavigation.js is implemented here:

WorkersNavigation.js

const WorkersNavigation = (props) => {
  return (
    <Stack.Navigator>
      <Stack.Screen
        name="WelcomeScreen"
        component={WelcomeScreen}
        options={{ headerShown: false }}
      ></Stack.Screen>
      <Stack.Screen
        name="WorkersScreen"
        component={WorkersScreen}
        options={{ headerShown: false }}
      ></Stack.Screen>
      <Stack.Screen
        name="DetailsNavigation"
        component={DetailsNavigation}
        options={{ headerShown: false }}
      ></Stack.Screen>
    </Stack.Navigator>
  );
};

export default WorkersNavigation;

Answer 1

The white space found on iPhone X devices and above is called the Safe Area and exists to ensure appropriate insetting based on the device and context. Refer to the official Human Interface Guidelines for more information.

The react-navigation's BottomTabNavigator supports safe areas out-of-the-box for the default BottomTabBar, so in order to remove the SafeArea under it, you need to override the settings provided for the BottomTabNavigator.

<Tab.Navigator
    tabBarOptions={ {
        ...
        safeAreaInsets: {
            bottom: 0,
        },
    } }
>
...
</Tab.Navigator>