route.params not returning a variable with React Navigation - react-native

Question

I'm attempting to pass a variable from one screen to another using React Navigation's route.params.
I've got this working on the screen immediately preceding it, but it's failing on the next screen and I cannot figure out why.
Here's the code:
setTimeout(() => {
console.log('here is the hid: ' + results.data.hid);
navigation.navigate('MainHome', {
hid: results.data.hid,
});
}, 2500);
The console log is correctly displaying the correct data in the console. This code leads to the next screen:
function Home({route, navigation}) {
const hid = route.params;
const [results, setResults] = useState([]);
const [errorMessage, setErrorMessage] = useState('');
const [loading, setLoading] = useState('loading');
console.log('Here is the hid that is retrieved from the route params on home:' + hid);
This console log is showing the hid as undefined.
Here is the expanded code for the referring screen:
function IntroOne({route, navigation}) {
const [results, setResults] = useState([]);
const [errorMessage, setErrorMessage] = useState('');
const [loading, setLoading] = useState('loading');
const {email, password} = route.params;
const CPRAPI = () => {
api
.get('create_account.php', {
params: {
email: email,
password: password,
},
})
.then(function (response) {
// handle success
setResults(response);
setLoading('success');
})
.catch(function (error) {
// handle error
console.log('ERROR :(');
console.log(error);
setErrorMessage(error);
});
};
useEffect(() => {
CPRAPI();
}, []);
if (loading != 'success') {
return (
<View style={styles.container}>
<Image
style={{width: windowWidth, maxHeight: 250}}
source={require('../components/parallel_universe.jpg')}
/>
<ActivityIndicator size={'large'} color={'#ee1c24'} />
<Text style={styles.header}>Loading...</Text>
</View>
);
} else {
if (results.data.intro_complete == 1) {
setTimeout(() => {
console.log('here is the hid: ' + results.data.hid);
navigation.navigate('MainHome', {
hid: results.data.hid,
});
}, 2500);
return (
<View style={styles.container}>
<Image
style={{width: windowWidth, maxHeight: 250}}
source={require('../components/parallel_universe.jpg')}
/>
<ActivityIndicator size={'large'} color={'#ee1c24'} />
<Text style={styles.header}>Almost Done...</Text>
</View>
);
}
Here is the expanded code for the receiving page:
function Home({route, navigation}) {
const hid = route.params.hid;
const [results, setResults] = useState([]);
const [errorMessage, setErrorMessage] = useState('');
const [loading, setLoading] = useState('loading');
console.log('Here is the hid that is retrieved from the route params on home:' + hid);
const CPRAPI = () => {
api
.get('home.php', {
params: {
hid: hid,
},
})
.then(function (response) {
// handle success
setResults(response);
setLoading('success');
})
.catch(function (error) {
// handle error
console.log('ERROR :(');
console.log(error);
setErrorMessage(error);
});
};
useEffect(() => {
CPRAPI();
}, []);
if (loading == 'loading') {
return (
<View style={styles.container}>
<Image
style={{width: windowWidth, maxHeight: 250}}
source={require('../components/parallel_universe.jpg')}
/>
<ActivityIndicator size={'large'} color={'#ee1c24'} />
<Text style={styles.header}>Loading...</Text>
</View>
);
} else {
return (
<View>
<Header
placement="center"
leftComponent={
<View>
<FontAwesomeIcon
style={{margin: 9}}
icon={['far', 'badge-dollar']}
/>
<Text>{results.data.home_screen[0].firstname}</Text>
</View>
}
centerComponent={{text: 'Hello, ', style: {color: '#fff'}}}
rightComponent={
<FontAwesomeIcon
style={{margin: 9}}
icon={['far', 'question-circle']}
/>
}
/>
<ScrollView>
<View style={styles.container}>
<Image
style={{width: windowWidth, maxHeight: windowHeight / 5}}
source={require('../components/parallel_universe.jpg')}
/>
<Text style={styles.header}>Hello, {}</Text>
<Text style={styles.textSmaller} />
<Text style={styles.textMuchSmaller}>
We will never spam you or sell your email.
</Text>
</View>
</ScrollView>
</View>
);
}
}
Here are my stacks:
const GettingStartedStack = createStackNavigator();
function GettingStartedScreen() {
return (
<GettingStartedStack.Navigator>
<GettingStartedStack.Screen
name="Getting Started"
component={GettingStarted}
options={{headerShown: false}}
/>
<GettingStartedStack.Screen
name="Question One"
component={gs1}
options={{title: 'Your Shadow Self'}}
/>
<GettingStartedStack.Screen
name="Defining Moment Narrative"
component={gs1entry}
/>
<GettingStartedStack.Screen
name="Question Two"
component={gs2}
options={{title: 'Credits & Money'}}
/>
<GettingStartedStack.Screen
name="Define Myself"
component={gs2entry}
options={{title: 'College'}}
/>
<GettingStartedStack.Screen
name="Concentration"
component={gs2Aentry}
options={{title: 'Concentration'}}
/>
<GettingStartedStack.Screen
name="Homeland"
component={gs3}
options={{title: 'Your Homeland'}}
/>
<GettingStartedStack.Screen
name="Choose Homeland"
component={gs3entry}
options={{title: 'Choose Your Homeland'}}
/>
<GettingStartedStack.Screen
name="Citizenship"
component={gs4}
options={{title: 'Your Citizenship'}}
/>
<GettingStartedStack.Screen
name="Choose Citizenship"
component={gs4entry}
options={{title: 'Choose Your Citizenship'}}
/>
<GettingStartedStack.Screen name="Banking" component={gs5} />
<GettingStartedStack.Screen
name="Choose Banking"
component={gs5entry}
options={{title: 'Choose Your Bank'}}
/>
<GettingStartedStack.Screen
name="Luck"
component={gs6}
options={{title: 'Are You Feeling Lucky?'}}
/>
<GettingStartedStack.Screen name="Parents" component={gs7} />
<GettingStartedStack.Screen name="Siblings" component={gs8} />
<GettingStartedStack.Screen name="Inheritance" component={gs9} />
<GettingStartedStack.Screen name="More Credits" component={moreCredits} />
</GettingStartedStack.Navigator>
);
}
const IntroStack = createStackNavigator();
function IntroStackScreen() {
return (
<IntroStack.Navigator>
<IntroStack.Screen
name="Welcome"
component={IntroOne}
options={{headerShown: false}}
/>
<IntroStack.Screen
name="Empire Universe"
component={IntroTwo}
options={{headerShown: false}}
/>
<IntroStack.Screen
name="Shadow Self"
component={IntroThree}
options={{headerShown: false}}
/>
</IntroStack.Navigator>
);
}
const HomeStack = createStackNavigator();
function HomeStackScreen() {
return (
<HomeStack.Navigator>
<HomeStack.Screen
name="Home"
component={Home}
options={{headerShown: false}}
/>
</HomeStack.Navigator>
);
}
const FinancesStack = createStackNavigator();
function FinancesStackScreen() {
return (
<FinancesStack.Navigator>
<FinancesStack.Screen
name="Finances"
component={Finances}
options={{headerShown: false}}
/>
</FinancesStack.Navigator>
);
}
const Tab = createBottomTabNavigator();
function MainTabs() {
return (
<Tab.Navigator
screenOptions={({route}) => ({
tabBarIcon: ({focused, color, size}) => {
let iconName;
if (route.name === 'Cyclopedia') {
iconName = focused ? 'books' : 'books';
} else if (route.name === 'Big Think') {
iconName = focused ? 'head-side-brain' : 'head-side-brain';
} else if (route.name === 'Getting Started') {
iconName = focused ? 'key-skeleton' : 'key-skeleton';
} else if (route.name === 'CSX') {
iconName = focused ? 'chart-area' : 'chart-area';
} else if (route.name === 'Marketwire') {
iconName = focused ? 'analytics' : 'analytics';
} else if (route.name === 'Login') {
iconName = focused ? 'user-cog' : 'user-cog';
} else if (route.name === 'Map') {
iconName = focused ? 'map' : 'map';
} else if (route.name === 'Intro') {
iconName = focused ? 'home' : 'home';
} else {
iconName = focused ? 'books' : 'books';
}
// You can return any component that you like here!
return <FontAwesomeIcon icon={['far', iconName]} />;
},
})}
tabBarOptions={{
activeTintColor: 'tomato',
inactiveTintColor: 'gray',
}}>
<Tab.Screen name="Home" component={HomeStackScreen} />
<Tab.Screen name="Finances" component={FinancesStackScreen} />
</Tab.Navigator>
);
}
const MainStack = createStackNavigator();
function App() {
return (
<NavigationContainer>
<MainStack.Navigator>
<MainStack.Screen
name="Welcome"
component={IntroStackScreen}
options={{headerShown: false}}
/>
<MainStack.Screen
name="MainHome"
component={MainTabs}
options={{headerShown: false}}
/>
<MainStack.Screen
name="Getting Started"
component={GettingStartedScreen}
options={{headerShown: false}}
/>
</MainStack.Navigator>
</NavigationContainer>
);
}
Any thoughts about what could be causing this? I've tried a bunch of things, but just can't seem to get it to resolve properly.
I'm using:
React Native - 0.63.4
"#react-navigation/bottom-tabs": "^5.11.7",
"#react-navigation/native": "^5.9.2",
"#react-navigation/stack": "^5.14.1",
Thanks in advance!

Answer 1

In react-navigation 5 ... we need to specify what screen you wanna navigate to in case of nested-navigators...
Try this:
navigate('MainHome', {
screen: Home,
params: {
screen: 'Home',
params: {
hid: results.data.hid,
},
},
});

Answer 2

This will work.
function Home({route, navigation}) {
const hid = route.params.hid;
const [results, setResults] = useState([]);
const [errorMessage, setErrorMessage] = useState('');
const [loading, setLoading] = useState('loading');
console.log('Here is the hid that is retrieved from the route params on home:' + hid);