Я понял.Я решил эту проблему.
const App = createBottomTabNavigator(
{
Favorite: {
screen: FavoriteShops,
navigationOptions: {
tabBarLabel: 'お気に入り',
tabBarIcon: ({ tintColor }) => (
<Icon name="heart" size={25} color={tintColor} />
),
},
},
Home: {
screen: Home,
navigationOptions: {
tabBarLabel: 'ホーム',
tabBarIcon: ({ tintColor }) => (
<Icon name="home" size={30} color={tintColor} />
),
},
},
Help: {
screen: Help,
navigationOptions: {
tabBarLabel: 'その他',
tabBarIcon: ({ tintColor }) => (
<Icon name="bars" size={25} color={tintColor} />
),
},
},
},
{
swipeEnabled: false, //Android用
tabBarOptions: {
showIcon: true,
showLabel: true,
activeTintColor: '#DE628D',
inactiveTintColor: '#707070',
style: {
width: '100%',
height: 70,
},
tabStyle: {
paddingTop: 20,
},
},
},
);