SyntaxError when adding TextInput to my app - react-native

I'm building an app in React Native,
When I add the TextInput to my code I get an SyntaxError:
Adjacent JSX elements must be wrapped in an enclosing tag (85:6)
I've checked the file and all elements are closed properly and I've got no syntax error I've noticed.
What causes this error to appear?
File
import React, { Component } from 'react';
import {
AppRegistry,
ListView,
View,
Text,
StyleSheet,
Image,
ImageBackground,
Button,
TouchableOpacity,
TextInput,
} from 'react-native';
import { createStackNavigator, } from 'react-navigation';
const image1 = require('./assets/card-0.png')
const image2 = require('./assets/card-2.png')
const image3 = require('./assets/card-3.png')
const image4 = require('./assets/card-4.png')
const image5 = require('./assets/card-5.png')
// Row data (hard-coded)
const rows = [
{id: 0, club: 'Club Air', genre: 'Hip Hop / R&B', image: image1},
{id: 1, club: 'Abe', genre: 'Hip Hop / R&B', image: image2},
{id: 2, club: 'John Doe', genre: 'Hip Hop / R&B', image: image3},
{id: 3, club: 'Encore', genre: 'Hip Hop / R&B', image: image4},
{id: 4, club: 'Jimmy Whoo', genre: 'Hip Hop / R&B', image: image5},
]
// Row comparison function
const rowHasChanged = (r1, r2) => r1.id !== r2.id
// DataSource template object
const ds = new ListView.DataSource({rowHasChanged})
export class HomeScreen extends Component {
static navigationOptions = {
// title: 'Alpha',
header: null,
};
state = {
dataSource: ds.cloneWithRows(rows)
}
renderRow = (rowData) => {
return (
<View style={styles.card}>
<TouchableOpacity onPress={() => this.props.navigation.navigate('Details')}>
<View style={styles.innerCard}>
<Image
style={styles.imageCard}
source={rowData.image}
/>
<Text style={styles.innerText}>
{rowData.club}
</Text>
</View>
<View style={styles.outerCard}>
<Text style={styles.outerText}>
{rowData.genre}
</Text>
<Text style = {styles.outerTexts}>
View
</Text>
</View>
</TouchableOpacity>
</View>
)
}
render() {
return (
<View>
<TextInput
style={{height: 40, borderColor: 'gray', borderWidth: 1}}
onChangeText={(text) => this.setState({text})}
value={this.state.text}
/>
</View>
<ListView
style={styles.container}
dataSource={this.state.dataSource}
renderRow={this.renderRow}
/>
)
}
}
const styles = StyleSheet.create({
container: {
flex: 1,
backgroundColor: 'black',
},
button: {
backgroundColor: 'transparent',
width: '50%',
},
textInput: {
height: 30,
borderWidth: 1,
borderColor: '#DD016B',
marginBottom: 10,
marginHorizontal: 10,
},
card: {
marginBottom: 15,
},
innerCard: {
height:110,
},
imageCard: {
width: 500,
height: 150,
paddingTop: 0,
paddingBottom: 0,
marginBottom:0,
marginTop: 0,
},
innerText: {
color: 'white',
marginBottom: 0,
fontSize: 35,
position: 'absolute',
top: 100,
},
outerText: {
color: '#DD016B',
marginBottom: 0,
marginTop: 50,
width: 100,
},
})
AppRegistry.registerComponent('App', () => App)
export default createStackNavigator({
Home: {
screen: HomeScreen,
},
}, {
initialRouteName: 'Home',
});

Your render() method has to return only one element. The solution is simple:
render() {
return (
<View>
<TextInput
style={{height: 40, borderColor: 'gray', borderWidth: 1}}
onChangeText={(text) => this.setState({text})}
value={this.state.text}
/>
</View>
<ListView
style={styles.container}
dataSource={this.state.dataSource}
renderRow={this.renderRow}
/>
)
}
has to become
render() {
return (
<View>
<TextInput
style={{height: 40, borderColor: 'gray', borderWidth: 1}}
onChangeText={(text) => this.setState({text})}
value={this.state.text}
/>
<ListView
style={styles.container}
dataSource={this.state.dataSource}
renderRow={this.renderRow}
/>
</View>
)}

Related

React Native: How do I switch the state of only one item in FlatList?

what happens is the following fact: I want to add "switch/toggle" next to id 2.3 and 4 items, but it's getting on all items on the flatlist. I used "import SwitchSelector from "react-native-switch-selector"; " Can anyone who understands flatlist help me? I will be very happy and grateful
I'm not getting it at all, and I'm thinking of redoing my code because of this problem
Settings.js
import { SafeAreaView,Text, View, FlatList,
TouchableOpacity, StyleSheet, Image} from 'react-native';
import SwitchSelector from "react-native-switch-selector";
import React, {useState} from 'react'
const Settings = () => {
const [data, setdata] = useState(DATA);
const [isRender, setisRender] = useState(false);
const DATA = [
{id: 1, text: 'Perfil', image: require('../../assets/images/user.png')},
{id: 2, text: 'Dark/Light mode', image: require('../../assets/images/light-up.png')},
{id: 3, text: 'TouchId', image: require('../../assets/images/fingerprint.png')},
{id: 4, text: 'Notificações', image: require('../../assets/images/bell-fill.png')},
//{id: 5, text: 'Logout'},
]
const renderItem = ({item}) => {
return(
<TouchableOpacity style= {styles.item}>
<View style={ styles.avatarContainer }>
<Image source={ item.image } style={ styles.avatar } />
</View>
<View>
<Text style={styles.text}>{item.text}</Text>
</View>
</TouchableOpacity>
)
}
return (
<SafeAreaView style={styles.container}>
<FlatList
data={DATA}
keyExtractor={(item) => item.id.toString()}
renderItem={renderItem}
extraData={isRender}
/>
</SafeAreaView>
);
};
const styles = StyleSheet.create({
container: {
flex: 1,
marginTop: 20
//marginHorizontal: 21
},
item:{
borderBottomWidth: 1,
borderBottomColor: '#808080',
alignItems: 'flex-start',
flexDirection: 'row',
},
avatarContainer: {
backgroundColor: 'transparent',
//borderRadius: 100,
height: 30,
width: 30,
justifyContent: 'center',
alignItems: 'center'
},
avatar: {
height: 25,
width: 25,
bottom: -25,
marginLeft: 30
},
text:{
marginVertical: 30,
fontSize: 20,
fontWeight: 'bold',
marginLeft: 30,
marginBottom: 10,
bottom: 5
}
});
export default Settings;
Well here is my approach to your problem as much as I understood;
it also actively changes the values of data for further usage of App
const [data, setData] = useState([
{ id: 1, text: 'Perfil', image: require('../../assets/images/user.png'), chosen: false },
{ id: 2, text: 'Dark/Light mode', image: require('../../assets/images/light-up.png'), chosen: false },
{ id: 3, text: 'TouchId', image: require('../../assets/images/fingerprint.png'), chosen: false },
{ id: 4, text: 'Notificações', image: require('../../assets/images/bell-fill.png'), chosen: false },
//{id: 5, text: 'Logout'},
])
const [isRender, setisRender] = useState(false);
const renderItem = ({ item }) => {
return (
<TouchableOpacity style={styles.item}>
<View style={styles.avatarContainer}>
<Image source={item.image} style={styles.avatar} />
</View>
<View>
<Text style={styles.text}>{item.text}</Text>
</View>
{item.id > 1 && <Switch
thumbColor={item.chosen == false ? "red" : "green"}
value={item.chosen}
onChange={() => setData(data.map(index =>
item.id === index.id
? {...index, chosen : !index.chosen}
: index
))}
/>}
</TouchableOpacity>
)
}
return (
<SafeAreaView style={styles.container}>
<FlatList
data={data}
keyExtractor={(item) => item.id.toString()}
renderItem={renderItem}
extraData={isRender}
/>
</SafeAreaView>
);};
You could try adding a boolean property to each item in DATA. You could then conditionally show a <SwitchSelector /> in renderItem based on that property.
For example, below I added the property showSwitch and used a ternary expression to conditionally show a <SwitchSelector /> in renderItem:
const DATA = [
{id: 1, text: 'Perfil', image: require('../../assets/images/user.png'), showSwitch: false},
{id: 2, text: 'Dark/Light mode', image: require('../../assets/images/light-up.png'), showSwitch: true},
{id: 3, text: 'TouchId', image: require('../../assets/images/fingerprint.png'), showSwitch: true},
{id: 4, text: 'Notificações', image: require('../../assets/images/bell-fill.png'), showSwitch: true},
//{id: 5, text: 'Logout'}
]
...
const renderItem = ({ item }) => {
return (
<TouchableOpacity style={styles.item}>
<View style={styles.avatarContainer}>
<Image source={item.image} style={styles.avatar} />
</View>
<View>
<Text style={styles.text}>{item.text}</Text>
</View>
{item.showSwitch ? <SwitchSelector /> : null}
</TouchableOpacity>
);
};
This works from me:
import { SafeAreaView,Text, View, FlatList,
TouchableOpacity, StyleSheet, Image, Switch} from 'react-native';
import React, {useState, useEffect} from 'react';
import {TouchID} from 'react-native-touch-id';
const Settings = () => {
const [data, setdata] = useState(DATA);
const [isRender, setisRender] = useState(false);
const DATA = [
{id: 1, text: 'Perfil', image: require('../../assets/images/user.png'), switch: false},
{id: 2, text: 'Dark/Light mode', image: require('../../assets/images/light-up.png'), switch: true},
{id: 3, text: 'TouchId', image: require('../../assets/images/fingerprint.png'), switch: true},
{id: 4, text: 'Notificações', image: require('../../assets/images/bell-fill.png'), switch: true},
//{id: 5, text: 'Logout'}
]
const renderItem = ({item}) => {
return(
<TouchableOpacity
style= {styles.item}
>
<View style={ styles.avatarContainer }>
<Image source={ item.image } style={ styles.avatar } />
</View>
<View>
<Text style={styles.text}>{item.text}</Text>
</View>
{item.switch ? <Switch /> : null}
</TouchableOpacity>
)
}
return (
<SafeAreaView style={styles.container}>
<FlatList
data={DATA}
keyExtractor={(item) => item.id.toString()}
renderItem={renderItem}
extraData={isRender}
/>
</SafeAreaView>
);
};
const styles = StyleSheet.create({
container: {
flex: 1,
marginTop: 20
//marginHorizontal: 21
},
item:{
borderBottomWidth: 1,
borderBottomColor: '#808080',
alignItems: 'flex-start',
flexDirection: 'row',
},
avatarContainer: {
backgroundColor: 'transparent',
//borderRadius: 100,
height: 30,
width: 30,
justifyContent: 'center',
alignItems: 'center',
},
avatar: {
height: 25,
width: 25,
bottom: -25,
marginLeft: 30
},
text:{
marginVertical: 30,
fontSize: 20,
fontWeight: 'bold',
marginLeft: 30,
marginBottom: 10,
bottom: 5
},
});
export default Settings;

React Native Images FlatList Error "doesn't show the images"

enter image description here
I relied on this video, here's the github with the video code:
https://github.com/KasperKloster/ComponentsExplained/blob/main/App.js
https://www.youtube.com/watch?v=qGN3S0wO-OQ
i'm not getting to view the icon images in png and neither in svg, could they help me? I put a bacgroundColor in some random color just to see if the icons are there, and they are, only they are not showing up.. i also couldn't put logout at the bottom of the screen
Settings.js
import { SafeAreaView,Text, View, FlatList,
TouchableOpacity, StyleSheet, Image} from 'react-native';
import React, {useState} from 'react'
const Settings = () => {
const [data, setdata] = useState(DATA);
const [isRender, setisRender] = useState(false);
const DATA = [
{id: 1, text: 'Perfil', image: require('../../assets/images/user.png')},
{id: 2, text: 'Dark/Light mode', image: require('../../assets/images/light-up.png')},
{id: 3, text: 'TouchId', image: require('../../assets/images/fingerprint.png')},
{id: 4, text: 'Logout'},
]
const renderItem = ({item}) => {
return(
<TouchableOpacity
style= {styles.item}
>
<View style={ styles.avatarContainer }>
<Image loadingIndicatorSource={ item.image } style={ styles.avatar } />
</View>
<View>
<Text style={styles.text}>{item.text}</Text>
</View>
</TouchableOpacity>
)
}
return (
<SafeAreaView style={styles.container}>
<FlatList
data={DATA}
keyExtractor={(item) => item.id.toString()}
renderItem={renderItem}
extraData={isRender}
/>
</SafeAreaView>
);
};
const styles = StyleSheet.create({
container: {
flex: 1,
marginTop: 20
//marginHorizontal: 21
},
item:{
borderBottomWidth: 1,
borderBottomColor: '#808080',
alignItems: 'flex-start',
flexDirection: 'row',
},
avatarContainer: {
backgroundColor: '#A0D800',
borderRadius: 100,
height: 30,
width: 30,
justifyContent: 'center',
alignItems: 'center',
},
avatar: {
height: 50,
width: 50,
},
text:{
marginVertical: 30,
fontSize: 25,
fontWeight: 'bold',
marginLeft: 30,
marginBottom: 5
},
});
export default Settings;
change loadingIndicatorSource={ item.image } to source={ item.image }

How to send Selected Custom Checkbox data to next page in react native?

Here I have created toggle custom checkboxes and those are rendered within FlatList with Name.
Now which checkboxes are checked i want to send those names into next screen using navigation.
So how can i implement that functionality, if anyone knows then please help me for the same.
/**Code For custom checkbox:**/
import React from "react";
import {
TouchableOpacity,
Image,
View,
SafeAreaView,
Text,
} from "react-native";
import { useState } from "react";
import IconAntDesign from "react-native-vector-icons/AntDesign";
export function CheckBoxCustom() {
const [count, setCount] = useState(0);
return (
<SafeAreaView>
<TouchableOpacity
style={{
backgroundColor: "white",
width: 20,
height: 20,
borderWidth: 2,
borderColor: "#ddd",
}}
onPress={() => setCount(!count)}
>
{count ? (
<IconAntDesign name="check" size={15} color={"black"} />
) : null}
</TouchableOpacity>
</SafeAreaView>
);
}
/**Code for FlatList:**/
import React, {useState} from 'react';
import {
SafeAreaView,
Text,
View,
TouchableOpacity,
Image,
StyleSheet,
FlatList,
Dimensions,
useWindowDimensions,
ScrollView,
Button,
} from 'react-native';
import Header from '../CustomComponents/RestaurentUI/Header';
import {CheckBoxCustom} from '../CustomComponents/RestaurentUI/Checkbox';
import {TextInput} from 'react-native-gesture-handler';
import {TabView, SceneMap, TabBar} from 'react-native-tab-view';
import {NavigationContainer, useNavigation} from '#react-navigation/native';
import GetCheckBoxData from './GetCheckBoxData';
const data = [
{
name: 'Lumlère brûlée',
status: 'Problems',
},
{
name: 'Aucune eau chaude',
status: 'Problems',
},
{
name: 'Lumlère brûlée',
status: 'Problems',
},
{
name: 'Service de ménage',
status: 'Problems',
},
{
name: 'AC non-fonctionnel',
status: 'Problems',
},
{
name: 'WIFI non-fonctionnel',
status: 'Problems',
},
{
name: 'Four non-fonctionnel',
status: 'Problems',
},
];
const renderItem = ({item, index}) => {
return (
<View>
<View style={{flexDirection: 'row'}}>
<CheckBoxCustom />
<Text style={{marginLeft: 10}}>{item.name} </Text>
</View>
</View>
);
};
const separator = () => {
return (
<View
style={{
height: 1,
backgroundColor: '#f1f1f1',
marginBottom: 12,
marginTop: 12,
}}
/>
);
};
const FirstRoute = () => (
<FlatList
style={{marginTop: 20}}
data={data}
keyExtractor={(e, i) => i.toString()}
renderItem={renderItem}
ItemSeparatorComponent={separator}
/>
);
const SecondRoute = () => (
<View style={[styles.scene, {backgroundColor: 'white'}]} />
);
const initialLayout = {width: Dimensions.get('window').width};
const renderScene = SceneMap({
first: FirstRoute,
second: SecondRoute,
});
const ReportScreen = ({navigation}) => {
const nav = useNavigation();
const layout = useWindowDimensions();
const [index, setIndex] = useState(0);
const [routes] = useState([
{key: 'first', title: 'Problemes'},
{key: 'second', title: 'Besoins complémentaitaires'},
]);
const goToScreen = () => {
navigation.navigate('GetCheckBoxData', {title: 'Hii all'});
};
const [checked, setChecked] = useState({});
const checkToggle = id => {
setChecked(checked => ({
...checked,
[id]: !checked[id],
}));
};
return (
<SafeAreaView style={styles.safearea}>
<Header title="Report" />
<ScrollView showsVerticalScrollIndicator={false} bounces={false}>
<View style={{flexDirection: 'row', marginTop: 20}}>
<View style={{flex: 1, height: 1, backgroundColor: '#ccc'}} />
</View>
<View style={styles.cardView}>
<View style={styles.subView}>
<Image
style={styles.image}
source={require('../Assets/UIPracticeImage/H1.jpg')}
/>
<View style={styles.internalSubView}>
<View style={styles.nameView}>
<Text style={styles.nameText}>Pine Hill Green Caban</Text>
</View>
<View style={styles.dateView}>
<Text style={styles.dateText}>May 22-27</Text>
</View>
</View>
</View>
</View>
<View style={{flexDirection: 'row'}}>
<View style={{flex: 1, height: 1, backgroundColor: '#ccc'}} />
</View>
<View
style={{
// backgroundColor: 'lime',
flex: 1,
height: 385,
width: '100%',
}}>
<TabView
navigationState={{index, routes}}
renderScene={renderScene}
onIndexChange={setIndex}
initialLayout={initialLayout}
style={styles.container}
renderTabBar={props => (
<TabBar
tabStyle={{alignItems: 'flex-start', width: 'auto'}}
{...props}
renderLabel={({route, color}) => (
<Text style={{color: 'black'}}>{route.title}</Text>
)}
style={{backgroundColor: 'white'}}
/>
)}
/>
</View>
<Button title="Click me" onPress={goToScreen} />
</ScrollView>
</SafeAreaView>
);
};
export default ReportScreen;
const styles = StyleSheet.create({
safearea: {
marginHorizontal: 20,
},
cardView: {
borderRadius: 10,
marginVertical: 10,
paddingVertical: 8,
},
subView: {
flexDirection: 'row',
},
image: {
height: 80,
width: 110,
borderRadius: 10,
},
internalSubView: {
justifyContent: 'space-between',
flex: 1,
},
nameView: {
justifyContent: 'space-between',
flexDirection: 'row',
alignItems: 'center',
marginLeft: 10,
},
nameText: {
fontWeight: 'bold',
width: '45%',
fontSize: 15,
},
dateView: {
flexDirection: 'row',
alignItems: 'center',
marginLeft: 10,
justifyContent: 'space-between',
},
dateText: {
width: 80,
},
listTab: {
flexDirection: 'row',
marginBottom: 20,
marginTop: 20,
},
btnTab: {
borderWidth: 3,
borderColor: 'white',
flexDirection: 'row',
marginRight: 10,
},
btnTabActive: {
borderWidth: 3,
borderBottomColor: '#fdd83d',
borderColor: 'white',
},
scheduleButton: {
backgroundColor: '#fdd83d',
alignItems: 'center',
paddingVertical: 15,
borderRadius: 10,
marginTop: 15,
},
container: {
marginTop: 20,
},
scene: {
flex: 1,
},
});
[![UI image][1]][1]
[1]: https://i.stack.imgur.com/AuLT8.png
You may want to lift the checkbox state to the parent component, i.e. make the checkboxes controlled, and collect the checked checkbox values. For this I'm assuming your data items have an id property, but any unique item property will suffice.
Example:
export function CheckBoxCustom({ checked, onPress }) {
return (
<SafeAreaView>
<TouchableOpacity
style={{
backgroundColor: "white",
width: 20,
height: 20,
borderWidth: 2,
borderColor: "#ddd",
}}
onPress={onPress}
>
{checked ?? <IconAntDesign name="check" size={15} color={"black"} />}
</TouchableOpacity>
</SafeAreaView>
);
}
...
const [checked, setChecked] = useState({});
const checkToggle = id => {
setChecked(checked => ({
...checked,
[id]: !checked[id],
}));
};
const renderItem = ({ item, index }) => {
return (
<View>
<View style={{ flexDirection: "row" }}>
<CheckBoxCustom
checked={checked[item.id]}
onPress={() => checkToggle(item.id)}
/>
<Text style={{ marginLeft: 10 }}>{item.name}</Text>
</View>
</View>
);
};
<FlatList
data={dataList}
keyExtractor={(e, i) => i.toString()}
renderItem={renderItem}
ItemSeparatorComponent={separator}
/>;
If your data hasn't any good GUID candidates then I suggest augmenting your data to include good GUIDs.
To pass the checked/selected items filter the dataList array.
Example:
const selected = dataList.filter(
item => checked[item.id]
);
// pass selected in navigation action

how to search item in listed element react native

I am stuck with a problem, when am trying to search elements from listed data it's not working, I seem lots of document ad I applied it, but still, its work for me, can anyone help me.
if you have any questions please free feel to ask any time.
home.js
This is Home.js file where I wrote my all code. and here I use some React native paper components.
import React, { useEffect, useState } from 'react'
import { Text, View, FlatList, StyleSheet, ScrollView, TouchableOpacity } from 'react-native';
import { Avatar } from 'react-native-elements';
import { Searchbar, Provider, Portal, TextInput, Button } from 'react-native-paper';
import { AntDesign, Entypo } from '#expo/vector-icons';
import Modal from "react-native-modal";
export default function Home() {
const [searchquery, setSearchquery] = React.useState();
const [isModalVisible, setModalVisible] = useState(false);
const [name, setName] = React.useState('');
const [number, setNumber] = React.useState('');
const toggleModal = () => {
setModalVisible(!isModalVisible);
};
const filterItem = (text) => {
users.filter((item) => {
return item.name.toLowerCase().inludes(text.toLowerCase())
})
setSearchquery(text)
}
const [users, setUser] = useState([
{
id: 1,
name: "Ashish Nirvikar",
number: 3289768909,
},
{
id: 2,
name: "Drew Macntyre",
number: 3345661276
},
{
id: 3,
name: "Jonh Cena",
number: 9087392878
},
{
id: 4,
name: "Rock Samoa",
number: 9723780928
},
{
id: 5,
name: "Boby Lashely",
number: 8769213678
},
{
id: 6,
name: "Seth Rollins",
number: 6890326741
},
])
return (
<View >
<Searchbar
placeholder="Search Contacts"
onChangeText={(text) => setSearchquery(text)}
value={searchquery}
style={{ marginTop: 30, marginHorizontal: 10 }}
/>
<ScrollView>
{
filterItem(users).map((item, index) => {
return (
<View key={index} style={styles.names}>
<Text style={{ color: 'black', fontSize: 20, fontWeight: 'bold' }}>Name : {item.name}</Text>
<Text style={{ color: 'black' }}>Mobile no : {item.number}</Text>
</View>
)
})
}
</ScrollView>
<Modal isVisible={isModalVisible} style={{ backgroundColor: 'white', height: 50, marginBottom: 200, marginTop: 100 }}>
<View style={{ flex: 2 }}>
<Text style={{ color: 'black', fontSize: 50, textAlign: 'center' }}>Add Contact</Text>
<TextInput
style={styles.input}
label="Enter Full name"
value={name}
onChangeText={text => setName(text)}
/>
<TextInput
style={styles.input1}
label="Enter Mobile Number"
value={number}
onChangeText={text => setNumber(text)}
/>
<Button title="Hide modal" onPress={toggleModal} style={{ color: 'black', backgroundColor: 'white', borderWidth: 1, borderColor: 'gray', marginHorizontal: 10, marginTop: 15 }}>Cancle</Button>
</View>
</Modal>
<AntDesign name="plus" size={34} color="black" style={styles.plus} onPress={toggleModal} />
</View>
);
}
const styles = StyleSheet.create({
customText: {
padding: 10,
marginTop: 20,
textAlign: 'center',
backgroundColor: 'lightgray',
fontWeight: 'bold',
fontSize: 20
},
plus: {
fontSize: 50,
position: 'absolute',
top: 680,
right: 40,
backgroundColor: 'pink',
borderRadius: 15,
borderWidth: 0.5,
padding: 5,
},
names: {
padding: 15,
fontSize: 25,
fontWeight: 'bold',
backgroundColor: 'lightgray',
marginTop: 10,
borderRadius: 20,
color: 'black'
},
addcontactname: {
fontSize: 30,
textAlign: 'center',
marginTop: 10,
marginBottom: 30
},
input: {
marginHorizontal: 10,
marginBottom: 20,
marginTop: 20
},
input1: {
marginHorizontal: 10,
marginBottom: 10,
}
});
Your Searchbar should be a controlled input (call setSearchquery with the change value from the Searchbar).
Then you can use the value of searchquery to perform the filtering inline in your jsx.
Finally, use FlatList to render a list of items instead of a map inside a ScrollView.
In your example, there's no need for the list of users to be stored in state.
import React, { Component } from 'react';
import { Text, View, StyleSheet, ScrollView, FlatList } from 'react-native';
import { Searchbar } from 'react-native-paper';
const data = [...];
export default class Home extends Component {
constructor(props) {
super(props);
this.state = {
searchquery: '',
};
}
renderHeader = () => {
return (
<Searchbar
placeholder="Search Contacts"
onChangeText={(searchquery) =>
this.setState({
searchquery,
})
}
value={this.state.searchquery}
/>
);
};
renderItem = ({ item, index }) => {
return (
<View key={index} style={styles.names}>
<Text>
Name : {item.name}
</Text>
<Text>Mobile no : {item.number}</Text>
</View>
);
};
render() {
return (
<FlatList
data={data.filter((item) => {
if (!this.state.searchquery) return true
return item.name
.toUpperCase()
.includes(this.state.searchquery.toUpperCase());
})}
ListHeaderComponent={this.renderHeader}
renderItem={this.renderItem}
/>
);
}
}
Snack
you can try with this code if it will not work then call filterItem function with bracket and parameter also my code is working while the name is lowercase.
<Searchbar
placeholder="Search Contacts"
onChangeText={filterItem}
onClear={(users) => setUser('')}
value={searchquery}
style={{ marginTop: 30, marginHorizontal: 10 }}
/>
const filterItem = (text) => {
setSearchquery(text)
let searchText = text.toLowerCase()
let filterData = users
filterData = filterData.filter(function (id) {
return id.name.toLowerCase().includes(searchText)
})
setUser(filterData);
if (text === "") {
setUser(
[
{
id: 1,
name: "Ashish Nirvikar",
number: 3289768909,
},
{
id: 2,
name: "Drew Macntyre",
number: 3345661276
},
{
id: 3,
name: "Jonh Cena",
number: 9087392878
},
{
id: 4,
name: "Rock Samoa",
number: 9723780928
},
{
id: 5,
name: "Boby Lashely",
number: 8769213678
},
{
id: 6,
name: "Seth Rollins",
number: 6890326741
},
]
);
}
}
Try this
const filterItem = (searchItems) => {
searchItems.filter((item) => {
return item.name.toLowerCase().inludes(searchquery.toLowerCase())
})
}
<Searchbar
placeholder="Search Contacts"
onChangeText={(text) => setSearchquery(text)}
onClear={(text) => searchquery("")}
value={searchquery}
style={{ marginTop: 30, marginHorizontal: 10 }}
/>
<ScrollView>
{
filterItem(users).map((item, index) => {
return (
<View key={index} style={styles.names}>
<Text style={{ color: 'black', fontSize: 20, fontWeight: 'bold' }}>Name : {item.name}</Text>
<Text style={{ color: 'black' }}>Mobile no : {item.number}</Text>
</View>
)
})
}
</ScrollView>

Navigation With Flatlist Data in React Native

Hello Here i have some data as the form of Flatlist and i have extracted it, now i want to move on that
screen that i have clicked on example
if i clicked on screen A then i will moved to screen A,
if i clicked on screen B then i will moved on screen B,
if i clicked on screen C then i will moved to screen C,
if i clicked on screen D then i will moved on screen D, And
Show their Header Also
How to call proper screen according to their header and screen..
How to Navigate it..
Sample image here
Code Here..
import React, {useState} from 'react';
import {
FlatList,
Image,
View,
Text,
SafeAreaView,
StyleSheet,
TouchableOpacity
} from 'react-native';
import App1 from './App1';
const dummyArray = [
{id: '1', value: 'A',exdate: '2020', City: 'Delhi'},
{id: '2', value: 'A',exdate: '2019',City: 'Mumbai'},
{id: '3', value: 'C',exdate: '2015 ',City: 'Indore'},
{id: '4', value: 'D',exdate: '2016',City: 'Patna'},
{id: '5', value: 'E',exdate: '2000',City: 'Raipur'},
];
const Home = ({ navigation }) => {
const [listItems, setListItems] = useState(dummyArray);
function handlePick(item){
}
const ItemView = ({item}) => { //flatlist data view
return (
// FlatList Item
<View style={styles.itemView}>
<TouchableOpacity style={styles.button} activeOpacity={.5}
onPress={()=>handlePick(item)}>
<View style={styles.stateView}>
<Text style={styles.textItem} onPress={() => getItem(item)}>
{item.value}
</Text>
<Image source={require('./right.jpg')} style={{marginLeft: 70, marginTop: 5,width: 30, height: 30}} />
</View>
<View
style={{
marginTop: 3,
height: 1,
width: '100%',
backgroundColor: '#C8C8C8'
}}
/>
<Text style={styles.text}>Date{"\t\t\t\t"}{item.exdate}</Text> //flatlist Data
<Text style={styles.capitalText}>Capital City{"\t\t\t\t\t\t"}{item.City}</Text> //flatlistCity
</TouchableOpacity>
</View>
);
};
const ItemSeparatorView = () => {
return (
// FlatList Item Separator
<View
style={{
backgroundColor: '#C8C8C8'
}}
/>
);
};
};
return (
<SafeAreaView style={{flex: 1}}>
<View style={styles.container}>
<FlatList
data={listItems}
ItemSeparatorComponent={ItemSeparatorView}
renderItem={ItemView}
keyExtractor={(item, index) => index.toString()}
/>
</View>
</SafeAreaView>
);
};
const styles = StyleSheet.create({
container: {
justifyContent: 'center',
flex: 1,
marginLeft: 10,
marginRight: 10,
marginBottom: 10,
},
textItem: {
marginTop: 5,
fontSize: 18,
flexDirection: 'row',
fontWeight: 'bold',
height: 20,
width: 250,
},
itemView: {
height: 150,
padding: 10,
margin: 8,
backgroundColor: '#fff'
},
stateView:{
height: 40,
flexDirection: 'row',
},
text:{
marginTop: 5,
width: 300,
height: 28
},
});
export default Home;
Please Suggest any solution..
Thanks..
Try this way
function handlePick(item){
const route = `Screen${item.value}`; // dynamic screen like 'ScreenA' or 'ScreenB' etc...
navigation.navigate(route, {data: item} ); This way will navigate to route with data object of item
}