Display a view when another view is being focused? - react-native

I have a TextInput, when the text is onFocus, I want to display a DateTimePicker component.
I have a AddMeeting.js component, which contains the TextInput, and another component for the DateTimePicker itself.
I thought about having a state (boolean) in AddMeeting that would change when TextInput is getting onFocus / onBlur and with conditional rendering to display / dismiss the DateTimePicker from the screen.
the problem is, I already have a show and hide functions in the DateTimePicker component itself, and it seems redundant to have the state in AddMeeting too.
This is the DateimePicker:
import React, { useState } from "react";
import { View } from "react-native";
import DateTimePickerModal from "react-native-modal-datetime-picker";
const CustomDateTimePicker = () => {
const [isPickerVisible, setPickerVisibility] = useState(false);
const [chosenDate, setChosenDate] = useState("");
const showPicker = () => {
setPickerVisibility(true);
};
const hidePicker = () => {
setPickerVisibility(false);
};
const handleConfirm = (date) => {
setChosenDate = date
console.warn("A date has been picked: ", date);
hidePicker();
}
return (
<View>
<DateTimePickerModal
isVisible={isPickerVisible}
mode="datetime"
onConfirm={handleConfirm}
onCancel={hidePicker}
/>
</View>
)
}
export default CustomDateTimePicker;
This is the AddMeeting.js:
const AddMeetingScreen = ({ navigation }) => {
_popAddMeeting = () => {
navigation.pop()
}
_showPicker = () => {
console.log("SHOWING PICKER");
}
return (
<>
<SafeAreaView style={styles.addMeetingContainer}>
<View style={styles.headerContainer}>
<TouchableOpacity onPress={_popAddMeeting} style={styles.backButtonTouchable}>
<Icon name="arrow-back-outline" size={28} color="#000" />
</TouchableOpacity>
<View style={{ position: 'absolute', top: 0, left: 0, right: 0, bottom: 0, justifyContent: 'center', alignItems: 'center' }}>
<Text style={styles.title}>
New Meeting
</Text>
</View>
</View>
<View style={{ marginTop: 32 }}>
<MinimalTextInput title="When" placeholder="test" onFocus={_showPicker} />
</View>
</SafeAreaView>
</>
)
}
}

Related

How to put the bottomsheet to the front of the screen?

In ReactNative, the bottomsheet is displayed overlaid on the fragment.
Is there a way to make the bottomsheet rise to the top of the screenenter image description here
The bottom sheet looks opaque as in the picture, so the bottom sheet cannot be touched Please help
The code below is a shortened version
enter image description here
enter image description here
import React, { FC , Component, useState, useEffect, Fragment,useCallback, useMemo, useRef } from "react"
import { FlatList, ViewStyle, StyleSheet, View, Platform, TextInput, TouchableOpacity} from "react-native"
import {
BottomSheetModal,
BottomSheetModalProvider,
BottomSheetBackdrop,
} from '#gorhom/bottom-sheet';
const ROOT: ViewStyle = {
backgroundColor: DefaultTheme.colors.background,
flex: 1,
}
export const ChecklookupScreen: FC<StackScreenProps<NavigatorParamList, "checklookup">> = observer(function ChecklookupScreen() {
const bottomSheetModalRef = useRef<BottomSheetModal>(null);
// variables
const snapPoints = useMemo(() => ['25%', '50%'], []);
// callbacks
const handlePresentModalPress = useCallback((index: string) => {
LOG.info('handlePresentModalPress', index);
bottomSheetModalRef.current?.present();
}, []);
const handleSheetChanges = useCallback((index: number) => {
LOG.info
console.log('handleSheetChanges', index);
}, []);
const renderItem = ({ item, index }) => (
<TouchableOpacity
key={index + item.inspNo + item.spvsNo}
//style={listContainer}
onPress={throttle(() => {
onClickItem(item.inspNo,item.spvsNo);
})}
>
<View>
<Fragment>
</View>
<Button icon="magnify-expand"
mode="elevated"
style={styles.detailButton}
onPress={throttle(() => {
onClickItem(item.inspNo,item.spvsNo);
})}
// onPress={() => navigation.navigate("checkdetail")}
>
</Button>
</View>
</Fragment>
</View>
</TouchableOpacity>
);
const fetchChecklookups = async (offset: number) => {
LOG.debug('fetchChecklookups:' + offset);
setRefreshing(true);
await checklookupStore.getChecklookups(offset)
setRefreshing(false);
};
const onEndReached = () => {
if (checklookupStore?.checklookupsTotalRecord <= checklookups?.length) {
LOG.debug('onEndReached555555555');
} else {
setPage(page + 1)
fetchChecklookups(page + 1);
}
};
const [searchQuery, setSearchQuery] = React.useState('');
const onChangeSearch = query => setSearchQuery(query);
return (
<Screen preset="fixed" style={{ backgroundColor: colors.background, flex: 1, padding: 10,}}>
<View style={{ flex: 1,}}>
<View style={{ flex: 1, }}>
<Searchbar
placeholder="조회조건을 입력해주세요"
onChangeText={onChangeSearch}
value={searchQuery}
onPressIn={() => handlePresentModalPress('touch on')}
/>
<BottomSheetModalProvider>
<BottomSheetModal
backgroundStyle={{ backgroundColor: "gray" }}
style={styles.bottomSheet}
ref={bottomSheetModalRef}
index={1}
snapPoints={snapPoints}
onChange={handleSheetChanges}
>
<View style={{ marginTop: 10, marginLeft: 50, marginRight: 50, flexDirection: "row"}}>
<View style={{ flex: 1, }}>
<Button
mode="outlined"
>소속을 입력하세요
</Button>
</View>
</View>
</BottomSheetModal>
</BottomSheetModalProvider>
</Screen>
)
})
You can try with portal, wrap you bottom sheet to from another package.

How do you get 1 specific value from a prop in expo?

I've been trying to pass up this prop from CameraButton.js file that gives the UI of an image that was taken but whenever I activate the prop in the AddPost.js, it gives me all the values but when I try to get the singular value of the image like using console.log(props.route.params.image) and gives error undefined is not an object
enter image description here
but it works perfectly when export default function console.log(props.route.params) and shows
enter image description here
AddPost.JS
import { useNavigation } from "#react-navigation/core";
import React from 'react'
import {useState} from "react";
import { View, TextInput, Button } from 'react-native'
export default function AddPost(props) {
console.log(props);
const navigation = useNavigation();
const [caption, setCaption] = useState("")
const uploadImage = async () => {
const response = await fetch(uri)
}
return (
<View style={{flex: 1}}>
<TextInput
placeholder="Whats on your mind Edgers navars"
onChangeText={(caption) => setCaption(caption)}
/>
<Button title = "Take A Photo" onPress={() => navigation.navigate("CameraButton")}
/>
<Button title = "Save" onPress={() => uploadImage()}
/>
</View>
)
}
CameraButton.Js
import { Camera, CameraType } from 'expo-camera';
import { useNavigation } from "#react-navigation/core";
import { useState } from 'react';
import { Button, StyleSheet, Text, TouchableOpacity, View, Image } from 'react-native';
import * as ImagePicker from 'expo-image-picker';
export default function App() {
const navigation = useNavigation();
const [type, setType] = useState(Camera.Constants.Type.back)
const [permission, requestPermission] = Camera.useCameraPermissions();
const [image, setImage] = useState(null);
const [camera, setCamera] = useState(null);
const takePicture = async () => {
if(camera){
const data = await camera.takePictureAsync(null);
setImage(data.uri);
}
}
if (!permission) {
// Camera permissions are still loading
return <View />;
}
if (!permission.granted) {
// Camera permissions are not granted yet
return (
<View style={styles.container}>
<Text style={{ textAlign: 'center' }}>
We need your permission to show the camera
</Text>
<Button onPress={requestPermission} title="grant permission" />
</View>
);
}
function toggleCameraType() {
setType((current) => (
current === Camera.Constants.Type.back ? Camera.Constants.Type.front : Camera.Constants.Type.back
));
}
// No permissions request is necessary for launching the image library
let openImagePickerAsync = async () => {
let permissionResult = await ImagePicker.requestMediaLibraryPermissionsAsync();
if (permissionResult.granted === false) {
alert("Permission to access camera roll is required!");
return;
}
let result = await ImagePicker.launchImageLibraryAsync({
mediaTypes: ImagePicker.MediaTypeOptions.All,
allowsEditing: true,
aspect: [4, 3],
quality: 1,
});
if (!result.cancelled) {
setImage(result.uri);
}
}
return (
<View style={styles.container}>
<Camera ref={ref => setCamera(ref)} style={styles.camera} type={type}>
<View style={styles.buttonContainer}>
<TouchableOpacity
style={styles.button}
onPress={toggleCameraType}>
<Text style={styles.text}>Flip Camera</Text>
</TouchableOpacity>
<TouchableOpacity
style={styles.button}
onPress={() => takePicture()}>
<Text style={styles.text}>Take Picture</Text>
</TouchableOpacity>
<TouchableOpacity
style={styles.button}
onPress={openImagePickerAsync}>
<Text style={styles.text}>Choose Picture</Text>
</TouchableOpacity>
<TouchableOpacity
style={styles.button}
onPress={() => navigation.navigate('AddPost', {image})}>
<Text style={styles.text}>Save Picture</Text>
</TouchableOpacity>
</View>
</Camera>
{image &&<Image source={{uri: image}}style={styles.camera}/>}
</View>
);
}
const styles = StyleSheet.create({
container: {
flex: 1,
justifyContent: 'center',
},
camera: {
flex: 1,
},
buttonContainer: {
flex: 1,
flexDirection: 'row',
backgroundColor: 'transparent',
margin: 64,
},
button: {
flex: 1,
alignSelf: 'flex-end',
alignItems: 'center',
},
text: {
fontSize: 24,
fontWeight: 'bold',
color: 'white',
},
});
You have to get the uri from the route object.
const response = await fetch(props.route.params?.image)
In you file CameraButton.js set the navigation for this:
<TouchableOpacity
style={styles.button}
onPress={() => navigation.navigate('AddPost', {
image: image
})}>
<Text style={styles.text}>Save Picture</Text>
</TouchableOpacity>
Be sure that the state image contains only the uri and not and object
Try props[0].route.params.image.

react native recyclerlistview if state changed its scroll to top

If I change any state or change the textinput value, if it changed then its scroll to top and leave the textinput. Or If I like one product, its autoamticlly scroll to top if the array is changed. Anyone can help me ?
import React, { useState, useMemo, useEffect, forwardRef, memo } from 'react';
import { StyleSheet, Text, TextInput, View, TouchableOpacity, Image, Dimensions } from 'react-native';
import { TouchableWithoutFeedback } from 'react-native-gesture-handler';
import { RecyclerListView, LayoutProvider, DataProvider } from 'recyclerlistview';
import { useSelector, useDispatch } from 'react-redux';
import { AntDesign } from '#expo/vector-icons';
import { addAmountOnCartItem } from '../../../redux/slice/product/shopping_cart';
import faker from 'faker';
import ButtonWithoutLoader from '../../ButtonWithoutLoader';
const { width, height } = Dimensions.get('window');
const Shopping_cart_list = ({ datas, onPressSetting }) => {
const dispatch = useDispatch();
const provider = useMemo(() => {
return new DataProvider(
(r1, r2) => {
return r1 !== r2;
},
index => {
return 'id:' + index;
}
)
}, []);
const dataProvider = useMemo(() => {
return provider.cloneWithRows(datas);
}, [datas, provider]);
const [update, updateRecycler] = useState({
update: false
});
const handleChange = (e, product_id) => {
dispatch(addAmountOnCartItem({ value: e, product_id }));
updateRecycler(prevState => {
return {
update: !prevState
}
});
};
const layoutProvider = new LayoutProvider((i) => {
return dataProvider.getDataForIndex(i).type;
}, (type, dim) => {
switch(type) {
case 'NORMAL':
dim.height = 250;
dim.width = width * 0.9;
break;
default:
dim.height = 0;
dim.width = 0;
break;
}
});
const RenderData = memo(({ product_id, product_name, price, product_image, amount, username }) => {
return (
<TouchableWithoutFeedback style={{height: 250, backgroundColor: '#fff', marginBottom: 16}}>
<View style={styles.header}>
<TouchableOpacity style={styles.profile_info}>
<Image source={{uri: faker.image.avatar()}} resizeMode="contain" style={styles.profile_image} />
<Text style={styles.username}>{ username }</Text>
</TouchableOpacity>
<TouchableOpacity onPress={() => onPressSetting(product_id)}>
<AntDesign name="setting" size={24} color="#444" />
</TouchableOpacity>
</View>
<View style={styles.mainContainer}>
<Image source={{uri: product_image}} style={styles.image} />
<View>
<Text style={styles.text}>{product_name}</Text>
<Text style={styles.text}>Preis: {price}</Text>
<View style={{flexDirection: 'row', alignItems: 'center'}}>
<Text style={styles.text}>Anzahl: </Text>
<AntDesign name="minussquareo" style={{marginRight: 6}} size={24} color="black" />
<TextInput onBlur={() => handleChange(1, product_id)} value={ isNaN(amount) ? '' : amount.toString() } onChangeText={e => handleChange(e, product_id)} style={{height: 28, width: 28, borderRadius: 4, textAlign: 'center', backgroundColor: '#eee'}} />
<AntDesign name="plussquareo" style={{marginLeft: 6}} size={24} color="black" />
</View>
</View>
</View>
<View style={[styles.header, { marginTop: 4 }]}>
<ButtonWithoutLoader onPress={() => updateRecycler(prevState => !prevState)} title="Jetzt Kaufen!" width={width * 0.9} />
</View>
</TouchableWithoutFeedback>
)
});
const rowRenderer = (type, data) => {
const { product_id, product_name, price, product_image, amount, username } = data.item;
return <RenderData product_id={product_id} product_name={product_name} price={price} product_image={product_image} amount={amount} username={username} />
};
return (
<View style={{flex: 1, paddingBottom: 85}}>
<RecyclerListView
dataProvider={dataProvider}
layoutProvider={layoutProvider}
forceNonDeterministicRendering={true}
rowRenderer={rowRenderer}
style={{marginLeft: width * 0.05, marginRight: width * 0.05}}
extendedState={update}
scrollViewProps={{showsVerticalScrollIndicator: false}}
/>
</View>
)
};
Flatlist:
import React, { useState, useRef, memo, useMemo } from 'react';
import { StyleSheet, Animated, FlatList, Text, TextInput, View, TouchableOpacity, Image, Dimensions } from 'react-native';
import { TouchableWithoutFeedback } from 'react-native-gesture-handler';
import { useSelector, useDispatch } from 'react-redux';
import { useNavigation } from '#react-navigation/core';
import { AntDesign } from '#expo/vector-icons';
import { addAmountOnCartItem } from '../../../redux/slice/product/shopping_cart';
import faker from 'faker';
import ButtonWithoutLoader from '../../ButtonWithoutLoader';
const { width } = Dimensions.get('window');
const Shopping_cart = ({ datas, onPressSetting }) => {
const dispatch = useDispatch();
const navigation = useNavigation();
const [update, updateRecycler] = useState({
update: false
});
const handleChange = (e, product_id) => {
dispatch(addAmountOnCartItem({ value: e, product_id }));
updateRecycler(prevState => {
return {
update: !prevState
}
});
};
const RenderItem = memo(({ item }) => {
const { product_id, product_name, price, product_image, amount, username, size, colors, desc, selectedColor, selectedSize } = item.item;
return (
<TouchableWithoutFeedback style={{height: 300, backgroundColor: '#fff', marginBottom: 16}}>
<View style={styles.header}>
<TouchableOpacity style={styles.profile_info}>
<Image source={{uri: faker.image.avatar()}} resizeMode="contain" style={styles.profile_image} />
<Text style={styles.username}>{ username }</Text>
</TouchableOpacity>
<TouchableOpacity onPress={() => onPressSetting(product_id)}>
<AntDesign name="setting" size={24} color="#444" />
</TouchableOpacity>
</View>
<TouchableOpacity onPress={() => navigation.navigate('ProductStack', {
product_id,
desc,
price,
product_image,
username,
user_profil_image: faker.image.avatar(),
size,
colors,
})} style={styles.mainContainer}>
<Image source={{uri: product_image}} style={styles.image} />
<View>
<Text style={styles.text}>{product_name}</Text>
<Text style={styles.text}>Preis: {price}</Text>
<Text style={styles.text}>Farbe: {selectedColor}</Text>
<Text style={styles.text}>Größe: {selectedSize}</Text>
<View style={{flexDirection: 'row', alignItems: 'center'}}>
<Text style={styles.text}>Anzahl: </Text>
<AntDesign name="minussquareo" style={{marginRight: 6}} size={24} color="black" />
<TextInput onBlur={() => handleChange(1, product_id)} value={ isNaN(amount) ? '' : amount.toString() } onChangeText={e => handleChange(e, product_id)} style={{height: 28, width: 28, borderRadius: 4, textAlign: 'center', backgroundColor: '#eee'}} />
<AntDesign name="plussquareo" style={{marginLeft: 6}} size={24} color="black" />
</View>
</View>
</TouchableOpacity>
<View style={[styles.header, { marginTop: 4 }]}>
<ButtonWithoutLoader onPress={() => updateRecycler(prevState => !prevState)} title="Jetzt Kaufen!" width={width * 0.9} />
</View>
</TouchableWithoutFeedback>
);
});
return (
<FlatList
data={datas}
keyExtractor={item => item.item.product_id + Math.random(100)}
renderItem={({ item }) => <RenderItem item={item}/>}
contentContainerStyle={{justifyContent: 'center', alignItems: 'center'}}
removeClippedSubviews={true}
initialNumToRender={2}
maxToRenderPerBatch={1}
extraData={update}
updateCellsBatchingPeriod={100}
/>
);
};
........................................................................................................................................................................................
If you see the docs of RecyclerView, you will see for extendedState prop:
In some cases the data passed at row level may not contain all the info that the item depends upon, you can keep all other info outside and pass it down via this prop. Changing this object will cause everything to re-render. Make sure you don't change it often to ensure performance. Re-renders are heavy.
Based on your code you are updating this prop in button click and text change handler, this will eventually re-render your screen as per the description. So, here you would need to revise your logic to avoid unnecessary re-renders.
I recently just solved this problem in my own project so I'd be glad to help.
The main issue is that you can't have ANY UI related state in your list items. None. You must instead move all of that information to be transferred through props.
I see your only instance of that is through your TextInput. This could be difficult. So my first question would then be: do you really need RecyclerListView? Unless your list is thousands of items long, and items have a complicated/image intensive UI, I'd suggest FlatList for this project.
If you do continue to need RecyclerListView, I'd suggest making it so after a textinput is finished ('finished' as in maybe after a 3 second timer or, when they press 'submit' or something like that), you change the dataProvider's data object. Change the item at the index you need, and then resubmit it with cloneWithRows()

How can use useState() with Flatlist data?

I've had a problem when i used useState(). i have to filter by searched words on my data and list.
i need to define my data list with State (i'd list with searched words) but when i use State, i've taken 'Invalid Hook' error.
let [list, setList] = useState(data);
//called
data={list}
I don't find where i use that , I couldn't fix for 3 days, i can't reach next step :( I hope i'll fix with expert helps...
import React, {Component, useState} from 'react'
import {
Text,
StyleSheet,
View,
FlatList,
SafeAreaView,
ScrollView,
Image,
TextInput,
} from 'react-native'
import data from '../../data'
export default class Flatlistexample extends Component {
render () {
//defined below
let [list, setList] = useState(data);
seachFilter=(text)=>{
const newData = data.filter(item=>{
const listitem= `${item.name.toLowerCase()} ${item.company.toLowerCase()}`;
return listitem.indexOf(text.toLowerCase())
})
};
return (
<SafeAreaView
style={{
flex: 1,
}}>
<FlatList
//called
data={list}
renderItem={({item, index})=>{
return (
<ScrollView>
<SafeAreaView
style={[
styles.container,
{backgroundColor: index % 2 === 0 ? '#fafafa' : '#bbb'},
]}>
<Image style={styles.profile} source={{uri: item.picture}} />
<View style={styles.rightside}>
<Text style={styles.name}>{item.name}</Text>
<Text style={styles.company}>{item.company}</Text>
</View>
</SafeAreaView>
</ScrollView>
)
}}
keyExtractor={item => item._id}
ListHeaderComponent={() => {
const [search, setSearch] = useState('');
return (
<View style={styles.seachContainer}>
<TextInput
style={styles.textInput}
placeholder={'Search...'}
value={search}
onChangeText={text=>{
setSearch(text)
}}
></TextInput>
</View>
)
}}
/>
</SafeAreaView>
)
}
}
const styles = StyleSheet.create({
container: {
flexDirection: 'row',
alignItems: 'center',
borderBottomWidth: 1,
borderColor: 'gray',
},
profile: {
width: 50,
height: 50,
borderRadius: 25,
marginLeft: 10,
},
rightside: {
marginLeft: 20,
justifyContent: 'space-between',
marginVertical: 5,
},
name: {
fontSize: 22,
marginBottom: 10,
},
searchContainer: {
padding: 10,
borderWidth: 2,
borderColor: 'gray',
},
textInput: {
fontSize: 16,
backgroundColor: '#f9f9f9',
padding: 10,
},
})
Thank you
React hooks can be used with functional component only, here you are using class component
You need to understand the difference between functional component and class component first.
Here you are using class component so your state should be manageed in the following way
export default class Flatlistexample extends Component {
constructor(props)
{
this.state={list:[]}
}
}
and to update list
this.setState({list: <array of data>})
If you want to use hooks, your component needs to be changed something like the following:
const Flatlistexample = () => {
//defined below
let [list, setList] = useState(data);
seachFilter = (text) => {
const newData = data.filter(item => {
const listitem = `${item.name.toLowerCase()} ${item.company.toLowerCase()}`;
return listitem.indexOf(text.toLowerCase())
})
};
return (
<SafeAreaView
style={{
flex: 1,
}}>
<FlatList data={list} renderItem={Your flatlist Item}/>
</SafeAreaView>
)
}
export default Flatlistexample
Here you go, I've added lots of comments. I hope you find this instructive. Let me know if you have questions!
import React, { useMemo, useState } from 'react'
import {
Text,
StyleSheet,
View,
FlatList,
SafeAreaView,
ScrollView,
Image,
TextInput,
} from 'react-native'
import data from '../../data'
// changed this to a functional component so you can use hooks. You can't use hooks in class components.
const Flatlistexample = () => {
// you don't actually need to `useState` for your list, since you're always just filtering `data`
// you would need to use `useState` if you were receiving data from an API request, but here it's static
const [search, setSearch] = useState('') // this should live in the main component so you can filter the list
const parsedSearch = search.toLowerCase() // do this once outside the filter, otherwise you're converting it for each item in the data array
const filteredList = useMemo(
() =>
data.filter(item => {
const itemText = `${item.name.toLowerCase()} ${item.company.toLowerCase()}`
return itemText.indexOf(parsedSearch) > -1 // returns `true` if search is found in string
}),
[parsedSearch], // this will only run if parsedSearch changes
)
return (
<SafeAreaView style={{ flex: 1 }}>
<FlatList
//called
data={filteredList} // use the filtered list here
renderItem={({ item, index }) => {
return (
<ScrollView>
<SafeAreaView
style={[
styles.container,
{ backgroundColor: index % 2 === 0 ? '#fafafa' : '#bbb' },
]}
>
<Image style={styles.profile} source={{ uri: item.picture }} />
<View style={styles.rightside}>
<Text style={styles.name}>{item.name}</Text>
<Text style={styles.company}>{item.company}</Text>
</View>
</SafeAreaView>
</ScrollView>
)
}}
keyExtractor={item => item._id}
ListHeaderComponent={() => {
return (
<View style={styles.seachContainer}>
<TextInput
style={styles.textInput}
placeholder={'Search...'}
value={search}
onChangeText={text => {
setSearch(text)
}}
/>
</View>
)
}}
/>
</SafeAreaView>
)
}
export default Flatlistexample

React Native useState not auto Updating?

why useState auto update? I'll press button and not showing textinput. but I can save file without change. textinput will be showing. sorry my bad english
import React, { useState,useEffect } from 'react';
import {Text, TextInput, View, Button,} from 'react-native';
const Test = ({navigation}) => {
const [textInput, settextInput] = useState([]);
useEffect(() => {
addTextInput = (key) => {
textInput.push([<TextInput style={{backgroundColor :'#7ACB4A',marginTop:10}} key={key} />]);
settextInput(textInput);
console.log(textInput);
}
},[textInput]);
return(
<View>
<Button title='+' onPress={() =>
addTextInput(textInput.length)} />
{textInput.map((value, index) => {
return value
})}
<Text>{textInput.length}</Text>
</View>
);
}
export default Test;
I have a few suggests to make your code better.
Don't change state value if not in use 'setState'.
This is false by nature and causes errors.
addTextInput = (key) => {
textInput.push([<TextInput style={{backgroundColor :'#7ACB4A',marginTop:10}} key={key} />]);
settextInput(textInput);
console.log(textInput);
}
State merely contains value, it should not contain different things. You should return TextInput in your map function.
I try rewrite your code, sorry because my english. Hope help you
code:
const [textInput, setTextInput] = React.useState(['1', '2'])
const addTextInput = (key: string) => {
const tempInput = textInput.concat([key])
setTextInput(tempInput)
}
return (
<View style={{ alignItems: 'center', justifyContent: 'center', flex: 1 }}>
<Button title="+" onPress={() => addTextInput(textInput.length.toString())} />
{textInput.map((value, index) => {
return (
<TextInput style={{ backgroundColor: '#7ACB4A', marginTop: 10, width: '70%' }} key={index + ''} />
)
})}
<Text>{textInput.length}</Text>
</View>
)
}