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Flat List Data is not showing

I am using flatlist for show user input notes in my app. But Flat List is not render any item that i entered. I used static list for testing and it works correctly. but when i enter a text through textinput it is not showing.
const addToDoHandler = () => {
if(userInput == ''){
return;
}
const newTodo = {
id: Math.floor(Math.random() * 1000),
text: userInput,
completed: false,
};
const newTodos = [...todos, newTodo];
setTodos(newTodos);
//clear user input
setUserInput('');
};
const renderItem = ( {item} ) => {
<View style={{backgroundColor:'#6b4d87', marginVertical: 10, flexDirection:'row', alignItems:'center', justifyContent:'space-between', height:60, width:'95%', borderRadius:10 }}>
<View>
<Text style={{color:'black', fontSize:20, fontWeight:'bold'}}>{item.text}</Text>
</View>
<TouchableOpacity onPress={() => deleteHandler(item.id)}>
<TrashIcon size={35} name="trash" style={{color:'#eff9f0'}} />
</TouchableOpacity>
</View>
};
return (
<SafeAreaView style={styles.root}>
<View style={styles.txtInputView}>
<TextInput
value={userInput}
onChangeText={text => setUserInput(text)}
style={styles.textInput}
placeholder={"Enter Your Note..."}
/>
<TouchableOpacity style={styles.addButton} onPress={addToDoHandler}>
<PlusSign size={35} name="add-sharp" style={styles.plusIcon}/>
</TouchableOpacity>
</View>
<View style={{alignItems:'center'}}>
<FlatList
data={todos}
renderItem={renderItem}
keyExtractor={item => item.id}
/>
</View>
</SafeAreaView>
);

You need to return the components from renderItem.
Change it to:
const renderItem = ( {item} ) => (
<View style={{backgroundColor:'#6b4d87', marginVertical: 10, flexDirection:'row', alignItems:'center', justifyContent:'space-between', height:60, width:'95%', borderRadius:10 }}>
<View>
<Text style={{color:'black', fontSize:20, fontWeight:'bold'}}>{item.text}</Text>
</View>
<TouchableOpacity onPress={() => deleteHandler(item.id)}>
<TrashIcon size={35} name="trash" style={{color:'#eff9f0'}} />
</TouchableOpacity>
</View>
);

flatlist and scrollView is not working properly

I'm new in react-native. On one of my screen I'm using flatlist on 4 places but the last flatlist which is displaying at the bottom of screen is not scrolling so I add the scrollView then its working fine but displaying me that error
VirtualizedLists should never be nested inside plain ScrollViews with the same orientation because it can break windowing and other functionality - use another VirtualizedList-backed container instead.
code
const Header = () => {
return (
<View>
<SafeAreaView>
<View style={styles.sellersheaderWrapper}>
<View style={styles.sellersheaderTitle}>
<Text style={styles.sellersheaderTitleText}>
Featured Sellers
</Text>
</View>
<View>
{
isFeatureSeller == '' ?
<View style={[styles.noSpecialOfferCard, {paddingVertical:hp('2%')}]} >
<Text style={[styles.noSpecialOfferCardText, {fontSize:hp('2%')}]}>Currently, No Feature Sellers</Text>
</View>
:
<View>
<FlatList
data={isFeatureSeller}
renderItem={renderCategoryItem}
keyExtractor={item => item.id}
horizontal={true}
showsHorizontalScrollIndicator={false}
/>
</View>
}
</View>
</View>
</SafeAreaView>
<View style={styles.searchWrapper}>
<View style={styles.dobregisterFormWrapperText}>
<TextInput
style={styles.dobregisterInputStyleText}
value={search}
onChangeText={(text) => searchFilterFunction(text)}
onClear={(text) => searchFilterFunction('')}
placeholder="Search ..."
/>
<View>
<SearchIconSvg />
</View>
</View>
</View>
</View>
);
};
const Footer = () => {
return (
<View>
<View style={styles.specialOfferCardWrapper}>
<View style={styles.specialOfferCardTextWrapper}>
<Text style={styles.specialOfferCardText}>Special Offer Cards</Text>
</View>
{isSpecialCards == '' ? (
<View style={styles.noSpecialOfferCard}>
<Text style={styles.noSpecialOfferCardText}>
No Special Offer cards
</Text>
</View>
) : (
<FlatList
data={isSpecialCards}
renderItem={renderCards}
keyExtractor={(item, index) => index.toString()}
horizontal={true}
showsHorizontalScrollIndicator={false}
style={styles.specialCards}
/>
)}
<View
style={[
styles.specialOfferCardTextWrapper,
{paddingBottom: isFeatureSeller == '' ? hp('17%') :hp('10%') },
]}>
<Text style={styles.specialOfferCardText}>Cards</Text>
<FlatList
data={isCard}
renderItem={renderNormalCards}
keyExtractor={item => item.id}
showsVerticalScrollIndicator={false}
scrollEnable={true}
/>
</View>
</View>
</View>
);
};
const MainData = () => {
return(
<View>
{search == '' ? (
<ScrollView>
<View >
<Header />
<Footer />
</View>
</ScrollView>
) : (
<View >
<FlatList
data={filteredDataSource}
renderItem={renderCategoryItemSearch}
keyExtractor={(item, index) => index.toString()}
ListHeaderComponent={Header}
/>
</View>
)}
</View>
)
}
return (
<View style={styles.container}>
{
loading == true ?
<View style={{marginVertical:hp('45%')}} >
<ActivityIndicator size="large" color={colors.primary} />
</View>
:
<MainData/>
}
<View style={styles.bottomNavWrapper}>
<TouchableOpacity
style={styles.storeWrapper}
onPress={() => navigation.navigate('BuyerDashboard')}>
<View style={styles.storeIcon}>
<DashboardReverseSvg />
</View>
</TouchableOpacity>
<View style={styles.dashboardWrapper}>
<View style={styles.dashboardIcon}>
<BuyerStoreReverseSvg />
</View>
<View style={styles.dashboardText}>
<Text style={styles.dashboardTextfont}>Storefront</Text>
</View>
</View>
</View>
</View>
);
};
export default Store;
I want to scroll at here.
<ScrollView>
<View >
<Header />
<Footer />
</View>
</ScrollView>

You can use nestedScrollEnabled prop on your FlatList component
https://reactnative.dev/docs/scrollview#nestedscrollenabled

How can I collapse Item pressed on arrays - react native?

I have a list of cards,
when pressed to any of them, I want to Increase hight for that card,
So I use layoutAnimation to handle this case because when I use Animated API from RN, I got an error when setNativeDrive "height"
Anyway,
In my case, it increases height for every card in the list,
So how can I solve it?
Code snippet
Live Demo
const OpenedAppointments = ({slideWidth}) => {
const [currentIndex, setCurrentIndex] = React.useState(null);
const [cardHeight, setCardHeight] = useState(140);
const collapseCard = (cardIndex) => {
setCurrentIndex(cardIndex);
currentIndex === cardIndex
? (LayoutAnimation.configureNext(LayoutAnimation.Presets.easeInEaseOut),
Animated.spring(),
setCardHeight(200))
: (LayoutAnimation.configureNext(LayoutAnimation.Presets.easeInEaseOut),
Animated.spring(),
setCardHeight(140));
};
const renderItems = (item, index) => {
return (
<TouchableOpacity
delayPressIn={0}
onPress={() => collapseCard(index)}
key={item.id}>
<Animated.View
style={[
styles.itemContainer,
{
height: cardHeight,
},
]}>
<View style={styles.headerContainer}>
<View style={styles.imgContainer}>
<Image
resizeMode="cover"
style={styles.img}
source={{uri: item.vendorInfo.vendorImg}}
/>
</View>
<View style={{width: '80%'}}>
<View style={styles.titleContainer}>
<Text numberOfLines={1} style={styles.vendorName}>
{item.vendorInfo.name}
</Text>
<View style={{flexDirection: 'row', alignItems: 'center'}}>
<Text style={styles.rateText}>{item.vendorInfo.rate}</Text>
<AntDesign name="star" size={18} color="#262626" />
</View>
</View>
<View style={styles.socialContainer}>
<View
style={{
width: 32,
height: 32,
backgroundColor: '#000',
borderRadius: 5,
}}
/>
</View>
</View>
</View>
<View style={styles.footer}>
<Text style={styles.serviceName}>
{item.serviceName}
</Text>
<Text style={styles.price}>
{item.price}
</Text>
</View>
// this will appeared when pressed to card "Footer Card"
<View>
<View style={styles.line} />
<View style={styles.editFooter}>
<View style={styles.dateContainer}>
<MemoCalender
style={styles.calenderIcon}
size={26}
color="#000"
/>
<View style={styles.dateBox}>
<Text style={styles.dateText}>{item.date}</Text>
<Text style={styles.dateText}>{item.time}</Text>
</View>
</View>
</View>
</View>
</Animated.View>
</TouchableOpacity>
);
};
return(
<>
{Data.opened.map((item, index) => renderItems(item, index))}
</>
);
}

Change this:
<Animated.View
style={[
styles.itemContainer,
{
height: cardHeight,
},
]
>
{...}
</Animated.View>
by
<Animated.View
style={[
styles.itemContainer,
{
height: currentIndex === index ? cardHeight : 140,
},
]
>
{...}
</Animated.View>
If you want to be more efficient, the default height of your card, define it in a constant (ex: const = DEFAULT_CARD_HEIGHT = 140) and use this constant wherever you use 140 as card height

React Native - How to pass the Image from the other Component without using React Redux

The goal is to pass the State of the Photos from my CameraRoll.js (Modal) to EventCreator.js(Modal) without using the React Redux. I'm using React Native Navigation V1.
I'm wondering maybe it is possible state of photos: [] become props? Just don't know how to do it. Need help, thank you guys!
Here are my codes:
CameraRoll.js:
state = {
photos: [],
index: null,
pickedImage: null
}
getPhotos = () => {
CameraRoll.getPhotos({
first: 200,
assetType: 'All'
})
.then(res => {
this.setState({
photos: res.edges,
});
})
.catch((err) => {
console.log('Error image: ' + err);
});
};
render() {
return(
<View style={styles.container}>
<Image source={{uri: this.state.pickedImage}} style={styles.image}/>
<ScrollView contentContainerStyle={styles.scrollView} showsVerticalScrollIndicator={false}>
{this.state.photos.map((photos, index) => {
return(
<TouchableHighlight
style={{opacity: index === this.state.index ? .5 : 1}}
onPress={() => this.setState({pickedImage: photos.node.image.uri})}
key={index}
underlayColor='transparent'
>
<Image
style={{width: width / 3, height: width /3}}
source={{uri: photos.node.image.uri}}
resizeMode='cover'
/>
</TouchableHighlight>
);
})}
</ScrollView>
</View>
);
}
EventCreator.js:
render(){
return(
<View style={styles.container}>
<EventInput
titleOnChangeText={this.eventNameChangedHandler}
descriptionOnChangeText={this.eventDescriptionChangedHandler}
titleEvent={this.state.controls.eventName}
descriptionEvent={this.state.controls.eventDescription}
/>
<Image
style={styles.image}
source={"I want to pass the image here from CameraRoll.js"}
resizeMode='contain'
/>
</View>
);
}

if you mean this:
onPress={() => this.setState({pickedImage: photos.node.image.uri})}
it just change the state value. What you should do is put an if statement on the return of cameraRoll.js:
private onPress = (img) => {
this.props.onImagePicked(img)
}
render() {
return(
<View style={styles.container}>
<Image source={{uri: this.state.pickedImage}} style={styles.image}/>
<ScrollView contentContainerStyle={styles.scrollView} showsVerticalScrollIndicator={false}>
{this.state.photos.map((photos, index) => {
return(
<TouchableHighlight
style={{opacity: index === this.state.index ? .5 : 1}}
onPress={() => this.onPress(photos.node.image.uri))}
key={index}
underlayColor='transparent'
>
<Image
style={{width: width / 3, height: width /3}}
source={{uri: photos.node.image.uri}}
resizeMode='cover'
/>
</TouchableHighlight>
);
})}
</ScrollView>
</View>
);
}
And in EventCreator.js:
constructor(){
super(props);
this.state = {
pickedImg: undefined
}
}
private onImagePicked = (newImg) => {
this.setState({
pickedImg: newImg
})
}
render(){
return(
<View style={styles.container}>
<EventInput
titleOnChangeText={this.eventNameChangedHandler}
descriptionOnChangeText={this.eventDescriptionChangedHandler}
titleEvent={this.state.controls.eventName}
descriptionEvent={this.state.controls.eventDescription}
/>
<Image
style={styles.image}
source={this.props.source}
resizeMode='contain'
/>
<CameraRoll props={...} onImagePicked={this.onImagePicked}/>
</View>
);
}

Where to implement my function when using map for iteration?

To iterate and add views dynamically from array, I'm using following code.
export default class CreateFeedPost extends Component {
constructor(props) {
super(props);
this.state = {
selectedImages: ["1", "2", "3"]
};
}
render() {
let animation = {};
let color = Platform.OS === "android"
? styleUtils.androidSpinnerColor
: "gray";
return (
<View style={{ flex: 1, flexDirection: "column" }}>
<View style={styles.topView}>
<View style={styles.closeButtonView}>
<TouchableHighlight
underlayColor="transparent"
style={styles.closeButton}
onPress={this._closeButtonClicked.bind(this)}
>
<Icon name="times" color="#4A4A4A" size={20} />
</TouchableHighlight>
</View>
<View style={styles.postButtonView}>
<TouchableHighlight
underlayColor="transparent"
style={styles.postButton}
onPress={this._postButtonClicked.bind(this)}
>
<Text style={styles.postButtonText}>Post</Text>
</TouchableHighlight>
</View>
</View>
<View style={styles.profileContainer}>
<View style={{ width: 65, height: 65, padding: 10 }}>
<Image
source={{ uri: global.currentUser.USER_PROFILE_PIC }}
style={styles.profileImage}
/>
</View>
<View style={[styles.middleTextView]}>
<Text style={[styles.memberName]}>
{global.currentUser.USER_NAME}
</Text>
</View>
</View>
<Animated.ScrollView
style={{ flex: 1 }}
scrollEventThrottle={1}
showsVerticalScrollIndicator={false}
{...animation}
>
<View>
<TextInput
ref="postTextInputRef"
placeholder="So, What's up?"
multiline={true}
autoFocus={true}
returnKeyType="done"
blurOnSubmit={true}
style={styles.textInput}
onChangeText={text => this.setState({ text })}
value={this.state.text}
onSubmitEditing={event => {
if (event.nativeEvent.text) {
this._sendCommentToServer(event.nativeEvent.text);
this.refs.CommentTextInputRef.setNativeProps({ text: "" });
}
}}
/>
</View>
</Animated.ScrollView>
<KeyboardAvoidingView behavior="padding">
<ScrollView
ref={scrollView => {
this.scrollView = scrollView;
}}
style={styles.imagesScrollView}
horizontal={true}
directionalLockEnabled={false}
showsHorizontalScrollIndicator={false}
decelerationRate={0}
snapToInterval={100}
snapToAlignment={"start"}
contentInset={{
top: 0,
left: 0,
bottom: 0,
right: 0
}}
>
{this.state.selectedImages.map(function(name, index) {
return (
<View style={styles.imageTile} key={index}>
<View style={styles.imageView}>
<TouchableHighlight
underlayColor="transparent"
style={styles.imageRemoveButton}
onPress={() => this._imageRemoveButtonClicked.bind(this)}
>
<Icon name="times" color="#4A4A4A" size={20} />
</TouchableHighlight>
</View>
</View>
);
})}
</ScrollView>
<TouchableHighlight
underlayColor="transparent"
style={styles.cameraButton}
onPress={this._cameraButtonClicked.bind(this)}
>
<View style={styles.cameraButtonView}>
<Icon name="camera" color="#4A4A4A" size={20} />
<Text style={styles.cameraButtonText}>Add Pic</Text>
</View>
</TouchableHighlight>
</KeyboardAvoidingView>
</View>
);
}
_closeButtonClicked() {
this.props.navigator.pop();
}
_postButtonClicked() {}
_cameraButtonClicked() {
this.props.navigator.push({
title: "All Photos",
id: "photoBrowser",
params: {
limit: 3,
selectedImages: this.state.selectedImages
}
});
}
_imageRemoveButtonClicked() {
console.log("yes do it");
}
}
I'm loading code in the render method. If I write the function imageRemoveButtonClicked outside render method, it's giving an error saying that 'Cannot read property bind of undefined'. Don't know what to do. Can some one please help me in this.

Use arrow functions and class property feature. For more information about binding patterns read this article. Try to add your method as:
export class App extends Component {
yourMapFunction = () => {
yourCode...
}
}

I believe the problem is that you are not using an arrow function as the argument to this.state.selectedImages.map(). If you want to access this inside an inner function, you should use the arrow function syntax. The standard syntax does not capture this.
this.state.selectedImages.map((name, index) => {
return (...);
})