From App.js, I declare the "FollowingScreen", which is made of a module that exports "Following"
export const FollowingScreen = ({route, navigation}) => {
return (
<ScrollView style={styles.scrollView}>
<View style={{ flex: 1, justifyContent: 'center', alignItems: 'center', backgroundColor: "#262423" }}>
<Following />
</View>
</ScrollView>
);
}
"Following" is exported by a file called "following.js". From "following.js" I want to navigate to ProfileScreen:
import { useNavigation } from '#react-navigation/native';
class Following extends Component {
...
...
renderItem = ({item}, navigation) => (
<ListItem bottomDivider>
<ListItem.Content style={{width: '100%', display: 'flex', flexDirection: 'row', justifyContent: 'space-between', alignItems: 'center'}}>
<ListItem.Title>{item.title}</ListItem.Title>
<TouchableOpacity
onPress={() => navigation.navigate("ProfileScreen", {userInfo: {uri: item.probability, username: item.country_id, id_user: item.id_user}})}
style={{ flexDirection: 'row'}}
>
<Image
style={{ borderRadius: 50 }}
source={{ uri: item.probability, width: 48, height: 48 }}
/>
</TouchableOpacity>
<TouchableOpacity
onPress={() => navigation.navigate("ProfileScreen", {userInfo: {uri: item.probability, username: item.country_id, id_user: item.id_user}})}
style={{ flexDirection: 'row'}}
>
<ListItem.Subtitle style={{color: '#000'}}>
<Text style={{fontFamily: 'Montserrat_600SemiBold' }}>{item.name} {item.surname}</Text>
{"\n"}
<Text style={{fontFamily: 'Montserrat_600SemiBold' }}>#{item.country_id}</Text>
{"\n"}
{"\n"}
<Text style={{fontFamily: 'Montserrat_600SemiBold' }}>{item.followers}</Text>
{"\n"}
<Text style={{fontFamily: 'Montserrat_600SemiBold' }}>{item.total}</Text> Total
</ListItem.Subtitle>
</TouchableOpacity>
<Button
buttonStyle={{backgroundColor: "#a6aba7", padding: 9, textAlign: "right", borderRadius: 10, display: item.isFollowing=="Same user" ? "none" : "flex"}}
title={item.isFollowing}
onPress={() => {
if(item.isFollowing=="Follow"){
this.follow(item.id_user);
}
else if(item.isFollowing=="Unfollow"){
this.unfollow(item.id_user);
}
else if(item.isFollowing=="Same user"){
//alert("Same user");
}
}}
/>
</ListItem.Content>
</ListItem>
);
}
unfortunately, I get "undefined is not an object (evaluating 'navigation.navigate')"
You are not passing navigation as a prop to the Following component so change your FollowingScreen component likewise :
export const FollowingScreen = ({route, navigation}) => {
{/** Rest Of Code **/}
<Following navigation={navigation}/>
{/** Rest of Code **/}
}
Then in Following class use this.props.navigation.navigate(....).
You need to declare "navigation" before calling it:
const navigation = useNavigation();
right before
renderItem = (...)
I am trying to implement a function in Expo to filter my data using checkboxes. I have already completed my checkboxes and designed them accordingly. The data to be filtered is pulled from the Firebase database and displayed in the form of a list on my page. I have also created a button for the filtering, which is used so that when a user clicks this button, the filtering takes place according to the selection of the respective boxes. Attached is a picture that shows what has already been implemented and below the code for it. I would be very grateful if someone could help me with this, as I am relatively new to React Native and have not found anything in this regard.
Thanks in advance
Anbieterliste-Screen
function MyCheckbox() {
const [checked, onChange] = useState(false);
function onCheckmarkPress() {
onChange(!checked);
}
return (
<Pressable
style={[styles.checkboxBase, checked && styles.checkboxChecked]}
onPress={onCheckmarkPress}>
{checked && <Ionicons name="checkmark" size={18} color="white" />}
</Pressable>
);
}
export default function Anbieter({ route, navigation }) {
//CONSTS WHICH WE GOT FROM THE HOMEPAGE AND DECLARATION
const { latitude, longitude, address } = route.params;
var getLat = latitude;
var getLong = longitude;
var getAddress = JSON.stringify(address);
const [restaurentList, setRestaurentList] = useState()
const [currentUsers, setCurrentUsers] = useState()
const [ranges, setRanges] = useState(1)
const [showRange, setShowRange] = useState(false)
// THIS IS A LIST WHICH DISPLAY ALL RESTAURANTS BY GETTING DATA IN PARAMS IN NAME OF DATA
const ListButton = ({ title, data }) => {
return (
<TouchableOpacity onPress={() => { navigation.navigate('Produktubersicht', { data }) }} style={[styles.itemContainer]}>
<Image source={{ uri: data.anbieterImg }} style={{ width: '90%', marginLeft: '5%', height: 160 }} />
<Text style={{ fontSize: 16, fontWeight: "bold", marginLeft: 20 }}>{data.firmenname}</Text>
<Text style={{ fontSize: 16, fontWeight: "bold", marginLeft: 20, width: '90%' }}>Adresse:
<Text style={{ fontSize: 16, fontWeight: 'normal' }}>{data.adresse}</Text>
</Text>
<Text style={{ fontSize: 16, fontWeight: "bold", marginLeft: 20, width: '90%' }}>Kategorie:
<Text style={{ fontSize: 16, fontWeight: 'normal' }}>{data.kategorie}</Text>
</Text>
</TouchableOpacity>
);
}
// THIS FUNCTION IS USE TO CALL ALL RESTAURANT FROM FIREBASE DATABASE
const getRestaurents = async () => {
let arr = []
// THIS IS FIREBASE API ALL DATA IS COMING FROM FIREBASE
var ar = await firebase.database().ref("/anbieter/").once("child_added", snapshot => {
var obj = snapshot.val();
obj.id = snapshot.key;
arr.push(obj);
});
// ALL DATA OF RESTAURANT IS STORING IN STATE HERE THEN FROM HERE ALL DATA WILL DISPLAY
setRestaurentList(arr)
}
var users = firebase.auth().currentUser;
useEffect(() => {
// WE CALL GET RESTAURANTS API HERE BECAUSE THIS USEEFFECT JUST CALL ONCE WHEN COMPONENT RENDER
console.log(users, 'users');
getRestaurents()
}, []);
// THIS IS SIGN OUT BUTTON , WHEN USER CLICK FOR SIGNOUT THEN IT ASKS WHETHER HE/SHE IS SURE TO DO SO
const signOutFunc = async () => {
Alert.alert(
"Ausloggen?",
"Sind Sie sicher, dass Sie sich ausloggen möchten?",
[
{
text: "Bestätigen", onPress: async () => {
await AsyncStorage.removeItem('userName')
await AsyncStorage.removeItem('order')
firebase.auth().signOut();
navigation.navigate('Homepage');
}
},
{
text: "Abbrechen",
style: "cancel"
}
]
);
}
return (
<ScrollView>
{/* THIS IS THE PART OF ICON WHERE LOGIN , SIGNOUT , Bestellverlauf AND Warenkorb ICON ARE HERE */}
<View style={styles.container}>
<View style={{ flexDirection: 'row', justifyContent: 'space-between', marginRight: 5, marginVertical: 10 }}>
{users ?
<TouchableOpacity onPress={() => { signOutFunc() }}>
<Entypo name="log-out" size={30} color="black" />
</TouchableOpacity>
: null}
{users ?
<View style={{ flexDirection: 'row', }}>
<TouchableOpacity onPress={() => { navigation.navigate('Bestellverlauf') }} style={{ marginRight: 20 }}>
<Fontisto name="prescription" size={30} color="black" />
</TouchableOpacity>
<TouchableOpacity onPress={() => { navigation.navigate('Warenkorb') }}>
<Feather name="shopping-bag" size={30} color="black" />
</TouchableOpacity>
</View>
:
<TouchableOpacity style={{ flexDirection: 'row' }} onPress={() => { navigation.navigate('Anmelden') }}>
<FontAwesome5 name="user" size={30} color="black" />
<Text style={{ margin: 10 }}>Registration/Login</Text>
</TouchableOpacity>
}
</View>
<Text style={styles.textFirst}>Ermittelte Adresse:</Text>
<View style={{ alignContent: 'center', flexDirection: 'row', width: '90%' }}>
<Text style={{ marginBottom: 15, marginTop: 10, marginHorizontal: 10 }}>{getAddress} </Text>
<TouchableOpacity onPress={() => { setShowRange(!showRange) }}>
<MaterialCommunityIcons name="filter-plus" size={30} color="grey" />
</TouchableOpacity>
</View>
{/* THIS IS RANGE SLIDER FOR SORTING ALL RESTAURANTS */}
{showRange ?
<View>
<View style={{ flexDirection: 'row', justifyContent: "space-between" }}>
<Text style={{ marginLeft: '3%', fontSize: 14, fontWeight: 'bold' }}> Entfernung festlegen!</Text>
<Text style={{ marginLeft: '3%' }}> {Math.round(ranges)} km</Text>
</View>
<Slider maximumValue={100} style={{ width: '90%', marginLeft: '5%', marginTop: 10, }} value={ranges} onValueChange={(e) => setRanges(e)} />
<View style={{ marginTop: 10 }}>
<Text style={{ marginLeft: '3%', fontSize: 14, fontWeight: 'bold', marginBottom: 10, }}>Filterung nach Kategorie</Text>
<View style={styles.checkboxContainer}>
<MyCheckbox />
<Text style={styles.checkboxLabel}>Backware</Text>
</View>
<View style={styles.checkboxContainer}>
<MyCheckbox />
<Text style={styles.checkboxLabel}>Bioprodukte</Text>
</View>
<View style={styles.checkboxContainer}>
<MyCheckbox />
<Text style={styles.checkboxLabel}>Feinkost</Text>
</View>
<View style={styles.checkboxContainer}>
<MyCheckbox />
<Text style={styles.checkboxLabel}>Griechische Spezialitäten</Text>
</View>
<View style={styles.checkboxContainer}>
<MyCheckbox />
<Text style={styles.checkboxLabel}>Molkerei</Text>
</View>
<View style={styles.checkboxContainer}>
<MyCheckbox />
<Text style={styles.checkboxLabel}>Türkische Spezialitäten</Text>
</View>
<Button title="Filter anwenden..." color='#5271FF'/>
</View>
</View>
: null
}
<Text style={styles.textSecond}>Sie können gerne die Filterfunktion verwenden, indem Sie oben auf den Symbol klicken...</Text>
{restaurentList && restaurentList.map((val, i) => {
return <ListButton key={i} title={val.firmenname} data={val} />
})}
</View>
</ScrollView>
);
}
A better approach to avoid duplication of code is to create a filterList array and create dynamic filters component.
I modified your code, check the comments for the explanation.
function MyCheckbox({addFilter, removeFilter, filterIndex}) { // ADD THIS PROPS TO ADD AND REMOVE FILTERS
const [checked, onChange] = useState(false);
function onCheckmarkPress() {
onChange(!checked);
checked ? addFilter(filterIndex) : removeFilter(filterIndex)
}
return (
<Pressable
style={[styles.checkboxBase, checked && styles.checkboxChecked]}
onPress={onCheckmarkPress}>
{checked && <Ionicons name="checkmark" size={18} color="white" />}
</Pressable>
);
}
export default function Anbieter({ route, navigation }) {
//CONSTS WHICH WE GOT FROM THE HOMEPAGE AND DECLARATION
const { latitude, longitude, address } = route.params;
var getLat = latitude;
var getLong = longitude;
var getAddress = JSON.stringify(address);
const [restaurentList, setRestaurentList] = useState()
const [filteredRestaurantList, setFilteredRestaurentList] = useState() // <-- ADD THIS STATE TO KEEP TRACK OF THE FILTERED LIST TO DISPLAY
const [currentUsers, setCurrentUsers] = useState()
const [ranges, setRanges] = useState(1)
const [showRange, setShowRange] = useState(false)
const [filters, setFilters] = useState([]) // <-- ADD THIS STATE TO KEEP TRACK OF THE FILTERS SELECTED
const filterList = ["Backware", "Bioprodukte", "Feinkost", "Griechische Spezialitäten"] // <--- CREATE A FILTER ARRAY
const addFilter = (filterIndex) => { // <-- FUNCTION ADD FILTER
setFilters([...filters, filterList[filterIndex]])
}
const removeFilter = (filterIndex) => { // <-- FUNCTION REMOVE FILTER
const index = filters.indexOf(filterList[filterIndex]);
const newFilters = [...filters];
newFilters.splice(index, 1)
setFilters(newFilters)
}
// THIS IS A LIST WHICH DISPLAY ALL RESTAURANTS BY GETTING DATA IN PARAMS IN NAME OF DATA
const ListButton = ({ title, data }) => {
return (
<TouchableOpacity onPress={() => { navigation.navigate('Produktubersicht', { data }) }} style={[styles.itemContainer]}>
<Image source={{ uri: data.anbieterImg }} style={{ width: '90%', marginLeft: '5%', height: 160 }} />
<Text style={{ fontSize: 16, fontWeight: "bold", marginLeft: 20 }}>{data.firmenname}</Text>
<Text style={{ fontSize: 16, fontWeight: "bold", marginLeft: 20, width: '90%' }}>Adresse:
<Text style={{ fontSize: 16, fontWeight: 'normal' }}>{data.adresse}</Text>
</Text>
<Text style={{ fontSize: 16, fontWeight: "bold", marginLeft: 20, width: '90%' }}>Kategorie:
<Text style={{ fontSize: 16, fontWeight: 'normal' }}>{data.kategorie}</Text>
</Text>
</TouchableOpacity>
);
}
// THIS FUNCTION IS USE TO CALL ALL RESTAURANT FROM FIREBASE DATABASE
const getRestaurents = async () => {
let arr = []
// THIS IS FIREBASE API ALL DATA IS COMING FROM FIREBASE
var ar = await firebase.database().ref("/anbieter/").once("child_added", snapshot => {
var obj = snapshot.val();
obj.id = snapshot.key;
arr.push(obj);
});
// ALL DATA OF RESTAURANT IS STORING IN STATE HERE THEN FROM HERE ALL DATA WILL DISPLAY
setRestaurentList(arr)
setFilteredRestaurentList(arr)
}
var users = firebase.auth().currentUser;
useEffect(() => {
// WE CALL GET RESTAURANTS API HERE BECAUSE THIS USEEFFECT JUST CALL ONCE WHEN COMPONENT RENDER
console.log(users, 'users');
getRestaurents()
}, []);
useEffect(() => { // <--- ADD THIS TO UPDATE THE FILTER RESTAURANT LIST EVERY TIME THAT THE FILTER ARRAY CHANGE
const rList = [...restaurentList];
if (filters.length) {
const filteredList = rList.filter(r => {
const toAdd = filters.indexOf(r.category)
if (toAdd !== -1) {
return r
}
})
setFilteredRestaurentList(filteredList)
}else { // <-- IF THERE ARE NO FILTER; RESET TO ORIGINAL LIST
setFilteredRestaurentList(rList)
}
}, [filters]);
return (
<ScrollView>
{/* THIS IS THE PART OF ICON WHERE LOGIN , SIGNOUT , Bestellverlauf AND Warenkorb ICON ARE HERE */}
<View style={styles.container}>
<View style={{ flexDirection: 'row', justifyContent: 'space-between', marginRight: 5, marginVertical: 10 }}>
{users ?
<TouchableOpacity onPress={() => { signOutFunc() }}>
<Entypo name="log-out" size={30} color="black" />
</TouchableOpacity>
: null}
{users ?
<View style={{ flexDirection: 'row', }}>
<TouchableOpacity onPress={() => { navigation.navigate('Bestellverlauf') }} style={{ marginRight: 20 }}>
<Fontisto name="prescription" size={30} color="black" />
</TouchableOpacity>
<TouchableOpacity onPress={() => { navigation.navigate('Warenkorb') }}>
<Feather name="shopping-bag" size={30} color="black" />
</TouchableOpacity>
</View>
:
<TouchableOpacity style={{ flexDirection: 'row' }} onPress={() => { navigation.navigate('Anmelden') }}>
<FontAwesome5 name="user" size={30} color="black" />
<Text style={{ margin: 10 }}>Registration/Login</Text>
</TouchableOpacity>
}
</View>
<Text style={styles.textFirst}>Ermittelte Adresse:</Text>
<View style={{ alignContent: 'center', flexDirection: 'row', width: '90%' }}>
<Text style={{ marginBottom: 15, marginTop: 10, marginHorizontal: 10 }}>{getAddress} </Text>
<TouchableOpacity onPress={() => { setShowRange(!showRange) }}>
<MaterialCommunityIcons name="filter-plus" size={30} color="grey" />
</TouchableOpacity>
</View>
{/* THIS IS RANGE SLIDER FOR SORTING ALL RESTAURANTS */}
{showRange ?
<View>
<View style={{ flexDirection: 'row', justifyContent: "space-between" }}>
<Text style={{ marginLeft: '3%', fontSize: 14, fontWeight: 'bold' }}> Entfernung festlegen!</Text>
<Text style={{ marginLeft: '3%' }}> {Math.round(ranges)} km</Text>
</View>
<Slider maximumValue={100} style={{ width: '90%', marginLeft: '5%', marginTop: 10, }} value={ranges} onValueChange={(e) => setRanges(e)} />
<View style={{ marginTop: 10 }}>
<Text style={{ marginLeft: '3%', fontSize: 14, fontWeight: 'bold', marginBottom: 10, }}>Filterung nach Kategorie</Text>
{filterList.map((filterItem, index) => (
<View
key={index}
style={styles.checkboxContainer}>
<MyCheckbox
addFilter={addFilter} // <-- ADD THIS PROP
removeFilter={removeFilter} // <-- ADD THIS PROP
filterIndex={index} // <-- ADD THIS PROP
/>
<Text style={styles.checkboxLabel}>filterItem</Text>
</View>
))}
<Button title="Filter anwenden..." color='#5271FF'/>
</View>
</View>
: null
}
<Text style={styles.textSecond}>Sie können gerne die Filterfunktion verwenden, indem Sie oben auf den Symbol klicken...</Text>
{filteredRestaurantList && filteredRestaurantList.map((val, i) => {
return <ListButton key={i} title={val.firmenname} data={val} />
})}
</View>
</ScrollView>
);
}
I have a flatlist with rendered list of items. I need for each item to change circle to checked-circle on click and go back on second click. I tried to do it with changing item prop isChecked but circle doesn't rerender until I go out of the screen and came back. How may I fix my problem?
Here is my rendering code:
const renderItems = ({ item }) => (
<TouchableOpacity
onPress={() => (item.isChecked = !item.isChecked)}
style={
item.isMarked
? {
backgroundColor: '#FE2C55',
flexDirection: 'row',
alignItems: 'center',
height: word_height
}
: { flexDirection: 'row', alignItems: 'center', height: word_height }
}
>
<View
style={{
width: 45,
justifyContent: 'center',
alignItems: 'center',
height: '100%',
backgroundColor: '#F6FFE0'
}}
>
{item.isChecked ? (
<Feather name="check-circle" size={25} color="#3D5201" />
) : (
<Feather name="circle" size={25} color="#3D5201" />
)}
</View>
<View style={styles.word_line}>
<View style={{ width: word_width, paddingLeft: 20 }}>
<Text style={{ fontSize: 20 }}>{item.word}</Text>
</View>
<View style={{ width: word_width, paddingLeft: 20 }}>
<Text style={{ fontSize: 20 }}>{item.translation}</Text>
</View>
</View>
</TouchableOpacity>
);
On this line, you are trying to mutate the props variable, so react will not update the component when the props state is mutated.
onPress={() => (item.isChecked = !item.isChecked)}
To do this, create a separate component (based on the name of the renderItems method, I guess it's just a function in the component) and add state to it.
Use useState and the initial state value that was taken from the props initialIsChecked
const Item = ({isMarked, isChecked: initialIsChecked, word, translation}) => {
const [isChecked, setIsChecked] = useState(initialIsChecked);
const handleClick = () => {
setIsChecked((prev) => !prev);
};
return (
<TouchableOpacity
onPress={handleClick}
style={
isMarked
? {
backgroundColor: '#FE2C55',
flexDirection: 'row',
alignItems: 'center',
height: word_height,
}
: {flexDirection: 'row', alignItems: 'center', height: word_height}
}>
<View
style={{
width: 45,
justifyContent: 'center',
alignItems: 'center',
height: '100%',
backgroundColor: '#F6FFE0',
}}>
{isChecked ? (
<Feather name="check-circle" size={25} color="#3D5201" />
) : (
<Feather name="circle" size={25} color="#3D5201" />
)}
</View>
<View style={styles.word_line}>
<View style={{width: word_width, paddingLeft: 20}}>
<Text style={{fontSize: 20}}>{word}</Text>
</View>
<View style={{width: word_width, paddingLeft: 20}}>
<Text style={{fontSize: 20}}>{translation}</Text>
</View>
</View>
</TouchableOpacity>
);
};
Then the list component should look something like this:
const List = () => {
return <ScrollView>
items.map((item) => (
<Item
key={item.id} // if there is id
isMarked={item.isMarked}
isChecked={item.isChecked}
word={item.word}
translation={item.translation}
/>
)
</ScrollView>;
};
I have a component called MDropDowlList which render the following view :
MDropDownList.js
render() {
return (
<View>
<View
style={{
backgroundColor: '#fff',
position: 'absolute',
left: 0,
right: 0,
top: 0,
maxHeight: 200,
}}
>
{
this.props.searchable && (
<TextInput
style={{ zIndex: 198 }}
onChangeText={(text) => this.search(text)}
/>
)
}
<FlatList
data={this.state.data}
keyboardShouldPersistTaps="always"
nestedScrollEnabled={true}
contentContainerStyle={{ zIndex: 199 }}
keyExtractor={(item, index) => index.toString()}
renderItem={({ item, index }) => (
<TouchableHighlight
key={index.toString()}
style={{
padding: 10,
backgroundColor: '#fff',
}}
underlayColor="#5897fb"
onPress={() => this.props.handleOnPress(item)}
>
<MText size={18}>{item}</MText>
</TouchableHighlight>
)}
/>
</View>
</View>
);
}
Then I have called this component to another component called MDropDown which render method is as below :
MDropDown.js
render() {
return (
<View style={{ marginVertical: 5, zIndex: 3}}>
...
{/* Another components */}
...
{
this.state.displayDropDown && (
<MDropDownList data={this.props.data} searchable={this.props.searchable} handleOnPress={(item) => this.handleOnPress(item)} />
)
}
</View>
);
}
Now finally I called my MDropDown component in my main screen as follow :
render() {
return (
<KeyboardAvoidingView style={{ flex: 1, backgroundColor: Colors.bgGray }} behavior="padding">
<ScrollView showsVerticalScrollIndicator={false} contentContainerStyle={styles.container} keyboardShouldPersistTaps="always" nestedScrollEnabled={true}>
<View style={{ backgroundColor: '#fff', padding: 10 }}>
<MDropDown
label="Category"
placeholder="Select Category"
data={["test1", "test2", "test3", "test4", "test5"]}
onSelectItem={(selectedItem) => alert(selectedItem)}
searchable={true}
/>
</View>
</ScrollView>
</KeyboardAvoidingView>
)
}
But I am not able to access Flatlist item or TextInput of MDropDownList component. Even I am not able to focus TextInput available in MDropDownList.
Please help me what's going wrong here ???
Note : This issue is only on android, on ios it is working properly. On ios I am able to click flatlist item and focus TextInput as well as.
Tried using zIndex to the absolute view?
Add property of zIndex : 500 to the style.
I am fetching data from http://retailsolution.pk/api/allhome I want to display the title of the product and then all the child products below it, I am getting this output: Here's my code:
class App extends Component {
constructor(props) {
super(props);
this.state = {
Deals: []
};
}
componentWillMount() {
axios
.get("https://retailsolution.pk/api/allhome")
.then(response => this.setState({ Deals: response.data.Deals }));
}
_renderItem(item) {
return (
<View style={{ width: 100, height: 130 }}>
<Image
style={{ width: 100, height: 100 }}
source={{ uri: item.image }}
/>
<Text numberOfLines={1} style={{ flex: 1 }}>
{" "}
{item.name}
</Text>
</View>
);
}
renderTitle() {
return this.state.Deals.map(deal => (
<Text key={deal.parent.id} style={styles.text}>
{deal.parent.name}
</Text>
));
}
renderImage() {
return this.state.Deals.map(deal => (
<FlatList
key={deal.child.product_id}
style={{ marginTop: 5 }}
horizontal
ItemSeparatorComponent={() => <View style={{ width: 5 }} />}
renderItem={({ item }) => this._renderItem(item)}
data={[deal.child]}
/>
));
}
render() {
console.log(this.state.Deals);
return (
<View style={{ flex: 1, marginLeft: 8, marginRight: 8, marginTop: 10 }}>
{this.renderTitle()}
{this.renderImage()}
</View>
);
}
}
In my case {this.renderTitle()} gets execute first and maps every value from the api to the app and then {this.renderImage()} maps all flatlists to the app.
Is there any way I can run this.renderImage() after every iteration of rhis.renderTitle()?
You will have to do it using nested loop.
Try something like this -
{this.state.Deals.map(deal => {
return (
<div>
<Text key={deal.parent.id} style={styles.text}>
{deal.parent.name}
</Text>
{deal.child.map(item => {
return (
<FlatList
key={item.product_id}
style={{ marginTop: 5 }}
horizontal
ItemSeparatorComponent={() => <View style={{ width: 5 }} />}
renderItem={({ item }) => this._renderItem(item)}
data={[item]}
/>
);
})}}
</div>
);
})}
A way to do it is to call a function after the fetch that will create the section data for the Flatlist with the correct format:
sections = [{title: 'Latest', data:["The products data array"]}, {title: 'second section', data : ["Other products"]}, and so on...]`