How to render a Modal within a Tab Screen in React Navigation - react-native

Question

I need to render a modal when the user press in the middle button. I'm using react-native-raw-bottom-sheet library to provide a Modal to my application.
I tried to pass a prop isFocused={props.navigation.isFocused} inside the <Tab.Screen> but the problem is when I pass the props to based if is or not focused in the the is rendered two times instead one.
I also tried to trigger the modal direct by the but without success.
My problematic is, when the user press the i need render the new that will contain the hole logic of the content in the modal and also will render the modal.
My tab.routes.js
import React from 'react';
import {createBottomTabNavigator} from '#react-navigation/bottom-tabs';
import TabButton from '../components/Tab/Button';
import Icon from 'react-native-vector-icons/MaterialIcons';
import Home from '../containers/Home';
import Adjustment from '../containers/Adjustment';
import Graphic from '../containers/Graphic';
import Help from '../containers/Help';
import NewTransaction from '../containers/NewTransaction';
const icons = {
Home: {
name: 'home',
},
Graphic: {
name: 'pie-chart',
},
NewTransaction: {
name: 'notifications-none',
},
Help: {
name: 'help-outline',
},
Adjustment: {
name: 'settings',
},
};
const Tab = createBottomTabNavigator();
const TabRoutes = () => (
<Tab.Navigator
initialRouteName="HomeScreen"
screenOptions={({route, navigation}) => ({
tabBarIcon: ({color, size, focused}) => {
if (route.name === 'NewTransaction') {
return <TabButton focused={focused} onPress={() => navigation.navigate('NewTransaction')} />;
}
const {name} = icons[route.name];
return <Icon name={name} size={size} color={color} />;
},
})}
tabBarOptions={{
keyboardHidesTabBar: true,
activeTintColor: '#f8b006',
inactiveTintColor: '#1C3041',
style: {
height: 60,
},
iconStyle: {
marginTop: 5,
},
labelStyle: {
fontSize: 12,
marginBottom: 10,
},
}}>
<Tab.Screen
options={{
title: 'Home',
}}
name="Home"
component={Home}
/>
<Tab.Screen
options={{
title: 'Gráfico',
}}
name="Graphic"
component={Graphic}
/>
<Tab.Screen
options={{
title: '',
}}
name="NewTransaction"
component={NewTransaction}
/>
<Tab.Screen
options={{
title: 'Ajuda',
}}
name="Help"
component={Help}
/>
<Tab.Screen
options={{
title: 'Ajustes',
}}
name="Adjustment">
{(props) => (
<Adjustment isVisible={props.navigation.isFocused()} onPress={() => props.navigation.navigate('Home')} />
)}
</Tab.Screen>
</Tab.Navigator>
);
export default TabRoutes;
Tab/Button/index.js
import React from 'react';
import {TouchableWithoutFeedback} from 'react-native-gesture-handler';
import Icon from 'react-native-vector-icons/MaterialIcons';
import Button from './styles';
const TabButton = ({onPress, focused}) => {
return (
<TouchableWithoutFeedback onPress={onPress}>
<Button focused={focused}>
<Icon name="add" size={35} color={'white'} />
</Button>
</TouchableWithoutFeedback>
);
};
export default TabButton;
And the component that will display the modal content
import React from 'react';
import {Text, View} from 'react-native';
const NewTransaction = ({isVisible}) => {
return (
<View>
<Text>Welcome to NewTransactions </Text>
</View>
);
};
export default NewTransaction;

Answer 1

This is my home tab it looks like to you
I custom tab bar with code but the add button is not a screen it is just a button and popup options to select
import {hideModalCreate, showModalCreate} from '#features/loading/actions';
import CreateYCTV from '#features/main/CreateYCTV';
import HomeScreen from '#features/main/Home';
import Manager from '#features/main/Manager';
import Notification from '#features/main/Notification';
import {createBottomTabNavigator} from '#react-navigation/bottom-tabs';
import images from '#res/icons';
import * as React from 'react';
import {Image, Pressable, View} from 'react-native';
import {Text, useTheme} from 'react-native-paper';
import {useSafeAreaInsets} from 'react-native-safe-area-context';
import {connect} from 'react-redux';
import ProductStack from './ProductStack';
const Tab = createBottomTabNavigator();
function MyTabBar({
state,
descriptors,
navigation,
showModalCreate,
hideModalCreate,
isShowModalCreate,
}) {
const {colors} = useTheme();
const insets = useSafeAreaInsets();
const focusedOptions = descriptors[state.routes[state.index].key].options;
if (focusedOptions.tabBarVisible === false) {
return null;
}
return (
<View
style={{
flexDirection: 'row',
backgroundColor: '#FFFFFF',
paddingBottom: Math.max(insets.bottom, 0),
}}>
{state.routes.map((route, index) => {
const {options} = descriptors[route.key];
const label =
options.tabBarLabel !== undefined
? options.tabBarLabel
: options.title !== undefined
? options.title
: route.name;
const isFocused = state.index === index;
const getSourceImage = (isFocused) => {
switch (route.name) {
case 'home':
return isFocused ? images.tab_home1 : images.tab_home;
case 'loans':
return isFocused ? images.tab_searching1 : images.tab_searching;
case 'notification':
return isFocused ? images.notifications1 : images.notifications;
case 'manager':
return isFocused
? images.tab_paper_folder1
: images.tab_paper_folder;
default:
return images.tab_add;
}
};
const onPress = () => {
if (route.name === 'create') {
if (isShowModalCreate) {
hideModalCreate();
return;
}
showModalCreate();
return;
}
hideModalCreate();
const event = navigation.emit({
type: 'tabPress',
target: route.key,
canPreventDefault: true,
});
if (!isFocused && !event.defaultPrevented) {
navigation.navigate(route.name);
}
};
const onLongPress = () => {
navigation.emit({
type: 'tabLongPress',
target: route.key,
});
};
return (
<Pressable
accessibilityRole="button"
accessibilityStates={isFocused ? ['selected'] : []}
accessibilityLabel={options.tabBarAccessibilityLabel}
testID={options.tabBarTestID}
onPress={onPress}
onLongPress={onLongPress}
style={{
flex: 1,
alignItems: 'center',
justifyContent: 'center',
paddingVertical: 8,
backgroundColor: 'white',
}}>
<Image source={getSourceImage(isFocused)} />
{route.name != 'create' ? (
<Text
style={{
color: isFocused ? colors.primary : colors.placeholder,
fontSize: 10,
marginTop: 4,
}}>
{label}
</Text>
) : null}
</Pressable>
);
})}
</View>
);
}
const Tabbar = ({showModalCreate, hideModalCreate, isShowModalCreate}) => {
return (
<Tab.Navigator
tabBar={(props) => (
<MyTabBar
isShowModalCreate={isShowModalCreate}
showModalCreate={showModalCreate}
{...props}
hideModalCreate={hideModalCreate}
/>
)}>
<Tab.Screen
name="home"
component={HomeScreen}
options={{
title: 'Trang chủ',
}}
/>
<Tab.Screen
name="loans"
component={ProductStack}
options={{
title: 'Sản phẩm',
}}
/>
<Tab.Screen name="create" component={CreateYCTV} />
<Tab.Screen
name="notification"
component={Notification}
options={{
title: 'Thông báo',
tabBarBadge: '13',
}}
/>
<Tab.Screen
name="manager"
component={Manager}
options={{
title: 'Quản lý',
}}
/>
</Tab.Navigator>
);
};
const mapStateToProps = (state, ownProps) => {
return {
isShowModalCreate: state.loading.isShowModalCreate,
};
};
const mapDispatch = {
showModalCreate: showModalCreate,
hideModalCreate: hideModalCreate,
};
export default connect(mapStateToProps, mapDispatch)(Tabbar);