Develop Reference

How to update text using TextInput

I'm having some troubles trying to figure out how to edit a text thats already been made.
I have done most of the things and the one i'm stuck at is the button that updates the text to the new updated text. I can see the updated text when I use console.log but it doesn't update the text. Thats still the same. Below you can see the full code and I think the updateTodo function is done wrong.
export default function App() {
const [updateTaskId, setUpdateTaskId] = useState('');
const [updateTaskTitle, setUpdateTaskTitle] = useState('');
const [todos, setTodos] = useState([]);
const updateTodo = () => {
const todoAsync = [
...todos,
{
key: updateTaskId,
name: updateTaskTitle,
},
];
setTodos(todoAsync);
};
const renderitem = ({item}) => {
return (
<View
style={{
flex: 1,
backgroundColor: colors.card,
margin: 10,
elevation: 1,
borderRadius: 10,
padding: 10,
}}>
<View style={{flexDirection: 'row'}}>
<Fontisto
name={item.isChecked ? 'checkbox-active' : 'checkbox-passive'}
size={20}
color={colors.text}
onPress={() => checkTodo(item.key)}
/>
<TouchableOpacity
onLongPress={() => {
setUpdateModal(true);
setUpdateTaskTitle(item.name);
}}>
<Text
style={{
color: colors.text,
marginLeft: 20,
marginRight: 20,
}}>
{item.name}
</Text>
</TouchableOpacity>
</View>
<View style={{flexDirection: 'row', marginTop: 10}}>
<Fontisto name="date" size={20} color={colors.text} />
<Text style={{marginLeft: 20, color: colors.text}}>{item.date}</Text>
</View>
<View
style={{
marginTop: 10,
flexDirection: 'row',
justifyContent: 'space-between',
}}>
<Feather
name={item.notification ? 'bell-off' : 'bell'}
size={20}
color={colors.text}
onPress={() => checkNotification(item.key)}
/>
<Fontisto
name="trash"
size={20}
color={colors.text}
onPress={() => {
setModalVisible(true);
setDetails(item);
}}
/>
</View>
</View>
);
};
return (
<View style={{flex: 1, backgroundColor: colors.background}}>
<Modal
hardwareAccelerated={true}
animationType="fade"
transparent={true}
visible={updateModal}
onRequestClose={() => {
setUpdateModal(!updateModal);
}}>
<View
style={{
flex: 1,
justifyContent: 'center',
alignItems: 'center',
backgroundColor: 'rgba(0,0,0,0.8)',
}}>
<View
style={{
backgroundColor: colors.Modal,
padding: 35,
borderRadius: 10,
width: '80%',
height: '40%',
}}>
<View style={{}}>
<TextInput
style={{backgroundColor: colors.background, marginTop: 10}}
onChangeText={name => setUpdateTaskTitle(name)}
value={updateTaskTitle}
/>
</View>
<View
style={{
flexDirection: 'row',
justifyContent: 'space-evenly',
marginTop: 50,
}}>
<TouchableOpacity
onPress={() => {
setUpdateModal(false);
setUpdateTaskTitle('');
}}>
<Text>Close</Text>
</TouchableOpacity>
<TouchableOpacity
onPress={() => {
setUpdateModal(false);
updateTodo(...todos, {name: updateTaskTitle});
setUpdateTaskTitle('');
console.log(updateTaskTitle);
}}>
<Text>Update</Text>
</TouchableOpacity>
</View>
</View>
</View>
</Modal>
<Modal
hardwareAccelerated={true}
animationType="fade"
transparent={true}
visible={modalVisible}
onRequestClose={() => {
setModalVisible(!modalVisible);
}}>
<View
style={{
flex: 1,
justifyContent: 'center',
alignItems: 'center',
backgroundColor: 'rgba(0,0,0,0.8)',
}}>
<View
style={{
backgroundColor: colors.Modal,
padding: 35,
borderRadius: 10,
width: '80%',
height: '40%',
}}>
<View>
<Text style={{fontSize: 20, color: colors.text}}>Delete?</Text>
</View>
<View
style={{
flexDirection: 'row',
marginTop: 15,
}}>
<Text style={{color: colors.text}}>Completed: </Text>
<Fontisto
style={{marginLeft: 20}}
name={
details.isChecked ? 'checkbox-active' : 'checkbox-passive'
}
size={15}
color={colors.text}
/>
</View>
<View style={{flexDirection: 'row', marginTop: 20}}>
<Text style={{color: colors.text}}>Title: </Text>
<Text
numberOfLines={1}
style={{marginLeft: 15, marginRight: 15, color: colors.text}}>
{details.name}
</Text>
</View>
<Text style={{marginTop: 20, color: colors.text}}>
Created: {details.date}
</Text>
<View
style={{
flexDirection: 'row',
justifyContent: 'space-evenly',
marginTop: 30,
}}>
<TouchableOpacity
onPress={() => {
setModalVisible(false);
setDetails('');
}}>
<Text style={{color: colors.text}}>Close</Text>
</TouchableOpacity>
<TouchableOpacity
onPress={() => {
deleteTodo(details.key);
setModalVisible(false);
setDetails('');
}}>
<Text style={{color: colors.text}}>Delete</Text>
</TouchableOpacity>
</View>
</View>
</View>
</Modal>
<View
style={{
flexDirection: 'row',
justifyContent: 'center',
alignItems: 'center',
padding: 20,
backgroundColor: colors.Textinput,
elevation: 12,
}}>
<TextInput
style={{
flex: 1,
backgroundColor: '#fff',
borderTopLeftRadius: 5,
borderBottomLeftRadius: 5,
}}
placeholder="What Tododay?"
placeholderTextColor="#000"
onChangeText={value => setTitle(value)}
value={title}
autoCapitalize="words"
/>
<Entypo
style={{
marginLeft: 1,
padding: 13,
backgroundColor: '#fff',
height: 49,
borderTopRightRadius: 5,
borderBottomRightRadius: 5,
}}
name="add-to-list"
size={25}
color="#000"
onPress={() => addTodo()}
/>
</View>
<View style={{flex: 1}}>
<FlatList
data={todos}
renderItem={renderitem}
ListEmptyComponent={emptyListComponent}
/>
</View>
</View>
);
}

Here is what you need to do.
make a copy of all todos
filter out the todo that you are about to update out of the todos array
concat a new todo with the new text to the array of todos
it should render as expected
const updateTodo = () => {
const todoAsync = [
...todos,
].filter((item) => item.id !== updateTaskId).concat([{
key: updateTaskId,
name: updateTaskTitle,
}])
setTodos(todoAsync);
};
Try this if you want to keep the same todo on the screen but only update the object key for name.
const updateTodo = () => {
const todoAsync = [
...todos,
].map((item) => {
const { key } = item;
if(key === updateTaskId} {
// return updated object
return {
key,
name: updateTaskTitle,
}
}
else return item;
}
setTodos(todoAsync);
};

.map() function displays my hidden animated view for each child in React Native. And I am using keys and id

I have a hidden animated view that displays when you click on the specific account name. Currently, when you click an account name, the animated hidden view displays for all the children in the .map() function. I tried adding the key and id to the animated view as well but that does not work either. Still shows the hidden animated view for all the children in the map.
<ScrollView style={{flex: 1}} showsVerticalScrollIndicator={true}>
{accounts.map(account => (
<View key={account.id} id={account.id}>
<View
style={{
width: '100%',
backgroundColor: colors.primary,
borderRadius: 10,
padding: 10,
marginBottom: 10,
marginTop: 10,
zIndex: 1,
}}>
<View
style={{
flex: 1,
flexDirection: 'row',
}}>
<Text
onPress={() => setHidden(!hidden)}
style={{
fontSize: 30,
textAlign: 'left',
flex: 1,
marginTop: 'auto',
marginBottom: 'auto',
}}>
{account.name}
</Text>
<View>
<Text
style={{
fontSize: 30,
textAlign: 'right',
flex: 1,
marginBottom: 10,
}}>
{account.amount}
</Text>
<View
style={{
flexDirection: 'row',
justifyContent: 'flex-end',
}}>
<DeleteAccount account={account.name} />
<Icon name="wrench" size={25} color="#000000" />
</View>
</View>
</View>
</View>
{hidden ? (
<Animated.View
key={account.id}
id={account.id}
style={[
styles.subView,
{transform: [{translateY: bounceValue}]},
]}>
<Text>{account.name}</Text>
</Animated.View>
) : null}
</View>
))}
</ScrollView>```

react native firebase async await parellel with promise.all

import fire from '../config/fire';
const db = fire.firestore();
class InitialDb extends Component {
constructor(props) {
super(props);
this.state = {
schools: '',
students: '',
};
}
async componentDidMount() {
const { size: schools } = await db.collection('schools').get();
const { size: students } = await db.collection('students').get();
this.setState({ schools, students});
}
render() {
return (
<SafeAreaView>
{/* <StatusBar translucent backgroundColor='#1b75ce' />
<HC title='Dashboard' /> */}
<BackButton />
<View style={{ paddingTop: 10, marginBottom: 20 }}>
<View style={{ flexDirection: 'row' }}>
<View style={styles.widthstyle}>
<TouchableOpacity>
<Card>
<CardItem>
<Body>
<View style={{ flexDirection: 'row' }}>
<Image
style={{ width: 30, height: 30 }}
source={require('../assets/schools.png')}
/>
<Text style={{ textAlign: 'center' }}>
Schools:{this.state.schools}
</Text>
</View>
</Body>
</CardItem>
</Card>
</TouchableOpacity>
</View>
<View style={styles.widthstyle}>
<TouchableOpacity>
<Card>
<CardItem>
<Body>
<View style={{ flexDirection: 'row' }}>
<Image
style={{ width: 30, height: 30 }}
source={require('../assets/asd.png')}
/>
<Text style={{ textAlign: 'center' }}>
Students:{this.state.students}
</Text>
</View>
</Body>
</CardItem>
</Card>
</TouchableOpacity>
</View>
</View>
<View
style={{ flexDirection: 'row' }}
// style={styles.basic1Style}
>
<View style={styles.widthstyle}>
<TouchableOpacity>
<Card>
<CardItem>
<Body>
<View style={{ flexDirection: 'row' }}>
<Image
style={{ width: 30, height: 30 }}
source={require('../assets/def.png')}
/>
<Text style={{ textAlign: 'center' }}>
Office:50
</Text>
</View>
</Body>
</CardItem>
</Card>
</TouchableOpacity>
</View>
<View style={styles.widthstyle}>
<TouchableOpacity>
<Card>
<CardItem>
<Body>
<View style={{ flexDirection: 'row' }}>
<Image
style={{ width: 30, height: 30 }}
source={require('../assets/abc.png')}
/>
<Text style={{ textAlign: 'center' }}>Attended:50</Text>
</View>
</Body>
</CardItem>
</Card>
</TouchableOpacity>
</View>
</View>
</View>
{/* <Text style={{ textAlign: "center" }}>
Swipe from left to right for menu
</Text> */}
<View style={{ marginBottom: 2 }}>
<Text style={{ textAlign: 'center', fontSize: 20, marginBottom: 5 }}>
Search
</Text>
</View>
<Form style={{ marginLeft: 20 }}>
<View style={{ flexDirection: 'row' }}>
<Item style={{ paddingLeft: 20, width: '40%' }}>
<Label style={{ textAlign: 'left' }}>Division</Label>
<Input />
</Item>
<Item style={{ paddingLeft: 20, width: '40%' }}>
<Label style={{ textAlign: 'left' }}>Area</Label>
<Input />
</Item>
</View>
<View style={{ flexDirection: 'row', paddingTop: 20 }}>
<Item style={{ paddingLeft: 20, width: '40%' }}>
<Label style={{ textAlign: 'left' }}>Gang</Label>
<Input />
</Item>
<Item
style={{
borderBottomColor: 'white',
}}
>
<Button info style={{ marginLeft: 25 }}>
<Text> Search </Text>
</Button>
</Item>
</View>
</Form>
{/*<View style={{ flex: 1, marginTop: 3, left: 0, right: 0, bottom: 0 }}>
<MapView
initialRegion={{
latitude: 12.93092,
longitude: 77.602156,
latitudeDelta: 0.0922,
longitudeDelta: 0.0421,
}}
style={styles.mapStyle}
></MapView>
</View>
*/}
</SafeAreaView>
);
}
}
const styles = StyleSheet.create({
basic1Style: {
// flex: 1,
backgroundColor: '#fff',
alignItems: 'center',
justifyContent: 'center',
flexDirection: 'row',
},
widthstyle: {
width: Dimensions.get('window').width / 2,
},
mapStyle: {
position: 'absolute',
top: 3,
left: 0,
right: 0,
bottom: 0,
},
});
export default InitialDb;
**This code above is working synchronously and also in series manner. I want this to be in async and await because this is freezing the UI. And also it should update the all 2 state objects after getting the size of all those 2 firestore collections using promise.all.
Here I have updated the code Please check it again **

PROBLEM
The problem here is basically your firebase is initializing on every hot-module reload. You only need to initialize once per App.
So basically, you could wrap your firebase initialization with try-catch and swallow the error.
try {
firebase.initializeApp({
/** config here **/
});
} catch(err) {
console.log(err);
}

trying to get a nested array work with react native flat list

so i got this object that i pass as data to my react native flatlist
<FlatList
extraData = {this.state}
data = {this.state.data_n1}>
renderItem = {({item, index}) => {
this.state.data_n2.forEach(aux => {
if(item.id == aux.id) {
return(<View><Text>Display first stuff</Text></View>);
} else {
return(<View><Text>Display second stuff</Text></View>);
}
}
}
/>
the whole idea is compare both objects, if the data_n2 contains the same id from the data_n1, the display the data from the data_n2, if not, just display from data_n1, problem is, i'm displaying this whenever i click on a calendar strip, so if i click on day june 1st, that day should display data_n2, if i click on day june 2nd, THAT one should display the data_n1.
does this work with flatlist or virtualizedlist (if i had to swap), or i need to render a flatlist for each data?
Edit: tested hao wu answer, but got this
Edit n2: i'll post the code, but keep in mind data_n1 is this.state.listaImputacionDia and this.state.listaImputacionDia is data_n2
this is the calendar strip code
<CalendarStrip
calendarHeaderStyle={{
fontSize: rfv(18),
fontWeight: "normal",
fontStyle: "normal",
letterSpacing: 0,
textAlign: "left",
color: "#707070",
paddingBottom: hp('4.5%')
}}
selectedDate={this.state.selectedDate}
onDateSelected={async (date) => {
await HoursReportHistoryBusiness.GetInstance().getListHoursReportRequest();
this.setState({ selectedDate: moment(date).format('YYYY-MM-DD') });
this.setViewHourHistory();
console.log(this.state.listaImputacionDia);
}}
minDate={moment().subtract(3, 'days')}
maxDate={moment().add(3,'days')}
startingDate={moment().subtract(3, 'days')}
useIsoWeekday={false}
style={{paddingTop: hp('1.5%'), paddingBottom: hp('2.7%'), backgroundColor: '#ffffff'}}
highlightDateNameStyle={{color: '#1062cc'}}
highlightDateNumberStyle={{color: '#1062cc'}}
disabledDateNumberStyle={{color: '#f21927'}}
disabledDateNameStyle={{color: '#f21927'}}
customDatesStyles={this.customDatesStyle}
dateNameStyle={{color: '#c4c4c4'}}
dateNumberStyle={{color: '#c4c4c4'}}
disabledDateOpacity={1}
/>
this is the flatlist
<FlatList
extraData={this.state.listaImputacionDia}
data={this.state.dataSource}//{DataManager.FavoriteList[moment(this.state.selectedDate).format('YYYY-MM-DD')]}
renderItem={({ item, index }) => {
if (this.state.listaImputacionDia.length != 0) {
const found = this.state.listaImputacionDia.filter(aux => item.id == aux.IdProyecto);
//this.state.listaImputacionDia.forEach(aux => {
if (found/*item.id == aux.IdProyecto*/) {
console.log('la wea' + found);
return (
<View style={{ marginTop: hp('2%') }}>
<TouchableOpacity style={} onPress={() => this.toggleExpanded()}>
<View style={{ flex: 1, flexDirection: 'row', justifyContent: 'space-between' }}>
<View style={{ flexDirection: 'column', justifyContent: 'center' }}>
<Text numberOfLines={2} ellipsizeMode="tail" style={}>{found.Title}</Text>
<Text style={}>{`ID ${found.Id} - ${found.Cliente}`}</Text>
{
!found.fav ?
<Text style={}>No favorito</Text>
: null
}
</View>
<View style={{ flexDirection: 'column', justifyContent: 'center' }}>
<View style={{ flexDirection: 'row', marginRight: wp('3.4%') }}>
<Text style={}>{`${found.HorasTrabajadas}h`}</Text>
<Image style={{ marginTop: hp('1%'), marginLeft: wp('3.7%') }} source={this.state.isCollapsed ? Images.expandible : Images.collapsible} />
</View>
</View>
</View>
</TouchableOpacity>
<Collapsible style={{
alignSelf: 'center',
width: wp('95.7%'),
backgroundColor: "#ffffff",
}} collapsed={this.state.isCollapsed}>
<View>
<View style={{ flexDirection: 'row' }}>
<Text style={}>Etapa</Text>
<Text style={}>Horas</Text>
</View>
<View style={{ flexDirection: 'row' }}>
<ModalDropdown
adjustFrame={style => {
style.top = (Platform.OS === 'ios' ? style.top : style.top - StatusBar.currentHeight);
return style;
}}
dropdownTextStyle={styles.dropdownTextStyle}
dropdownTextHighlightStyle={styles.dropdownTextHighlightStyle}
dropdownStyle={styles.dropdownStageStyle}
defaultValue={'Seleccionar'}
style={styles.dropStageStyle}
textStyle={{
padding: 0,
margin: 0,
fontSize: rfv(16),
paddingVertical: hp('1.2%'),
fontWeight: 'normal',
fontStyle: 'normal',
textAlign: 'left',
color: found.etapa != '' ? '#1a1a1a' : '#c4c4c4',
}}
//onSelect={(index, value) => this.setState({SeleccionClientes: value})}
//options={Object.keys(this.state.items)}
onSelect={(index, value) => this.setState({ SeleccionClientes: value })}
options={DataManager.ListEtapa}
/>
<View style={styles.InputContainerHours}>
<Text style={styles.InputTextHours}>{found.HorasTrabajadas}</Text>
</View>
<TouchableOpacity style={{ marginTop: hp('0.5%'), marginLeft: wp('5.5%') }} onPress={() => this.props.onSubstract}>
<Image source={Images.menos_hora} />
</TouchableOpacity>
<TouchableOpacity style={{ marginTop: hp('0.5%'), marginLeft: wp('2%') }} onPress={() => this.props.onAdd}>
<Image source={Images.mas_hora} />
</TouchableOpacity>
</View>
<Text style={}>Observaciones</Text>
<Input
autoCapitalize="none"
maxLength={100}
inputContainerStyle={styles.InputContainerComentarioOnBlur}
containerStyle={styles.InputComentario}
inputStyle={styles.InputTextHoursRInput}
placeholderTextColor={'#c4c4c4'}
placeholder="(Opcional)"
onChangeText={value => this.setState({})}
/>
<TouchableOpacity style={{ alignItems: 'flex-end', alignSelf: 'flex-end' }}>
<Text style={}>Agregar etapa</Text>
</TouchableOpacity>
</View>
</Collapsible>
</View>
)
}
else {
console.log('no encontro un favorito');
return (
<View style={{ marginTop: hp('2%') }}>
<TouchableOpacity style={{
alignSelf: 'center',
width: wp('95.7%'),
height: hp('10%'),
backgroundColor: "#ffffff",
}} onPress={() => this.toggleExpanded()}>
<View style={{ flex: 1, flexDirection: 'row', justifyContent: 'space-between' }}>
<View style={{ flexDirection: 'column', justifyContent: 'center' }}>
<Text numberOfLines={2} ellipsizeMode="tail" style={} >{found.title}</Text>
<Text style={}>{`ID ${found.id} - ${found.cliente}`}</Text>
{
!item.fav ?
<Text style={}>No favorito</Text>
: null
}
</View>
<View style={{ flexDirection: 'column', justifyContent: 'center' }}>
<View style={{ flexDirection: 'row', marginRight: wp('3.4%') }}>
<Text style={}>{`${20}h`}</Text>
<Image style={{ marginTop: hp('1%'), marginLeft: wp('3.7%') }} source={this.state.isCollapsed ? Images.expandible : Images.collapsible} />
</View>
</View>
</View>
</TouchableOpacity>
<Collapsible style={{
alignSelf: 'center',
width: wp('95.7%'),
backgroundColor: "#ffffff",
}} collapsed={this.state.isCollapsed}>
<View>
<View style={{ flexDirection: 'row' }}>
<Text style={}>Etapa</Text>
<Text style={}>Horas</Text>
</View>
<View style={{ flexDirection: 'row' }}>
<ModalDropdown
adjustFrame={style => {
style.top = (Platform.OS === 'ios' ? style.top : style.top - StatusBar.currentHeight);
return style;
}}
dropdownTextStyle={styles.dropdownTextStyle}
dropdownTextHighlightStyle={styles.dropdownTextHighlightStyle}
dropdownStyle={styles.dropdownStageStyle}
defaultValue={'Seleccionar'}
style={styles.dropStageStyle}
textStyle={}
//onSelect={(index, value) => this.setState({SeleccionClientes: value})}
//options={Object.keys(this.state.items)}
onSelect={(index, value) => this.setState({ SeleccionClientes: value })}
options={DataManager.ListEtapa}
/>
<View style={styles.InputContainerHours}>
<Text style={styles.InputTextHours}>{found.horas}</Text>
</View>
<TouchableOpacity style={{ marginTop: hp('0.5%'), marginLeft: wp('5.5%') }} onPress={() => this.props.onSubstract}>
<Image source={Images.menos_hora} />
</TouchableOpacity>
<TouchableOpacity style={{ marginTop: hp('0.5%'), marginLeft: wp('2%') }} onPress={() => this.props.onAdd}>
<Image source={Images.mas_hora} />
</TouchableOpacity>
</View>
<Text style={}>Observaciones</Text>
<Input
autoCapitalize="none"
maxLength={100}
inputContainerStyle={styles.InputContainerComentarioOnBlur}
containerStyle={styles.InputComentario}
inputStyle={styles.InputTextHoursRInput}
placeholderTextColor={'#c4c4c4'}
placeholder="(Opcional)"
onChangeText={value => this.setState({})}
/>
<TouchableOpacity style={{ alignItems: 'flex-end', alignSelf: 'flex-end' }}>
<Text style={}>Agregar etapa</Text>
</TouchableOpacity>
</View>
</Collapsible>
</View>
);
}
//})
}
else {
console.log('imputacion por dia esta vacio');
return (
<View style={{ marginTop: hp('2%') }}>
<TouchableOpacity style={{
alignSelf: 'center',
width: wp('95.7%'),
height: hp('10%'),
backgroundColor: "#ffffff",
}} onPress={() => this.toggleExpanded()}>
<View style={{ flex: 1, flexDirection: 'row', justifyContent: 'space-between' }}>
<View style={{ flexDirection: 'column', justifyContent: 'center' }}>
<Text numberOfLines={2} ellipsizeMode="tail" style={}>{item.title}</Text>
<Text style={}>{`ID ${item.id} - ${item.cliente}`}</Text>
{
!item.fav ?
<Text style={}>No favorito</Text>
: null
}
</View>
<View style={{ flexDirection: 'column', justifyContent: 'center' }}>
<View style={{ flexDirection: 'row', marginRight: wp('3.4%') }}>
<Text style={}>{`${10}h`}</Text>
<Image style={{ marginTop: hp('1%'), marginLeft: wp('3.7%') }} source={this.state.isCollapsed ? Images.expandible : Images.collapsible} />
</View>
</View>
</View>
</TouchableOpacity>
<Collapsible style={{
alignSelf: 'center',
width: wp('95.7%'),
backgroundColor: "#ffffff",
}} collapsed={this.state.isCollapsed}>
<View>
<View style={{ flexDirection: 'row' }}>
<Text style={}>Etapa</Text>
<Text style={}>Horas</Text>
</View>
<View style={{ flexDirection: 'row' }}>
<ModalDropdown
adjustFrame={style => {
style.top = (Platform.OS === 'ios' ? style.top : style.top - StatusBar.currentHeight);
return style;
}}
dropdownTextStyle={styles.dropdownTextStyle}
dropdownTextHighlightStyle={styles.dropdownTextHighlightStyle}
dropdownStyle={styles.dropdownStageStyle}
defaultValue={'Seleccionar'}
style={styles.dropStageStyle}
textStyle={}
//onSelect={(index, value) => this.setState({SeleccionClientes: value})}
//options={Object.keys(this.state.items)}
onSelect={(index, value) => this.setState({ SeleccionClientes: value })}
options={DataManager.ListEtapa}
/>
<View style={styles.InputContainerHours}>
<Text style={styles.InputTextHours}>{item.horas}</Text>
</View>
<TouchableOpacity style={{ marginTop: hp('0.5%'), marginLeft: wp('5.5%') }} onPress={() => this.props.onSubstract}>
<Image source={Images.menos_hora} />
</TouchableOpacity>
<TouchableOpacity style={{ marginTop: hp('0.5%'), marginLeft: wp('2%') }} onPress={() => this.props.onAdd}>
<Image source={Images.mas_hora} />
</TouchableOpacity>
</View>
<Text style={}>Observaciones</Text>
<Input
autoCapitalize="none"
maxLength={100}
inputContainerStyle={styles.InputContainerComentarioOnBlur}
containerStyle={styles.InputComentario}
inputStyle={styles.InputTextHoursRInput}
placeholderTextColor={'#c4c4c4'}
placeholder="(Opcional)"
onChangeText={value => this.setState({})}
/>
<TouchableOpacity style={{ alignItems: 'flex-end', alignSelf: 'flex-end' }}>
<Text style={}>Agregar etapa</Text>
</TouchableOpacity>
</View>
</Collapsible>
</View>
);
}
}}
/>

forEach only returns undefined, no matter what you return in the function.
You could find the element first, and then render it conditionally:
<FlatList
extraData={this.state.data_n2}
data={this.state.data_n1}>
renderItem = {({ item, index }) => {
const found = this.state.data_n2.find(aux => item.id == aux.id);
if (found) {
return (<View><Text>Display first stuff: {found.id}</Text></View>);
} else {
return (<View><Text>Display second stuff: {item.id}</Text></View>);
}
}}
/>
If there are possibly multiple matches:
<FlatList
extraData={this.state}
data={this.state.data_n1}>
renderItem = {({ item, index }) => {
const found = this.state.data_n2.filter(aux => item.id == aux.id);
if (found.length > 0) {
return (
<View>{
found.map(e => (<View><Text>Display first stuff: {e.id}</Text></View>))
}</View>
);
} else {
return (<View><Text>Display second stuff</Text></View>);
}
}}
/>

Style in react-native

I'm trying to adjust the homepage but I don't know how to change the position of the Text.
I have this code:
return (
<View style={style.container}>
<View style={style.page}>
<Icon
name="user-circle"
color="#56cbbe"
size={70}
onPress={() => Actions.visualizzaprofilo({ cf: Username })}
/>
<Text
style={{
paddingBottom: 15,
textAlign: "center",
fontSize: 15,
color: "#56cbbe",
fontWeight: "bold"
}}
onPress={() => Actions.visualizzaprofilo({})}
>
Visualizza il Profilo
</Text>
<Text style={{ textAlign: "center", fontSize: 20 }}>
{"Benvenuto"}
</Text>
<Text
style={{
textAlign: "center",
fontSize: 20,
color: "#56cbbe",
fontWeight: "bold"
}}
>
<TouchableOpacity
style={[style.button, style.buttonOK]}
onPress={() => this.checkFunction()}
>
<Text style={style.buttonTesto}>Inizia</Text>
</TouchableOpacity>
{this.modProfilo({ })}
{this.eliminaProfilo({ })}
{this.sensorCheck()}
{this.logout()}
</View>
</View>
Where for example modProfilo (and also the other have the same style):
modProfilo({}) {
<Text
style={{ color: "#56cbbe", paddingTop: 20 }}
onPress={() => Actions.modificaprofilo({ })}
>
MODIFICA PROFILO
</Text>
I need to transform the first image in the second one, how can i Do??

Enclose them in a view with flexDirection set to row and justifyContent set to space-between:
return (
<View style={style.container}>
...
<View style={{flexDirection:'row', justifyContent:'space-between'}}>
{this.modProfilo({ })}
{this.eliminaProfilo({ })}
{this.sensorCheck()}
{this.logout()}
</View>
...
</View>

flexDirection: 'row'
This will do the required job. BY default the flex direction is vertical. U just need to change into horizontal.

Added a View (let id be OuterView) and add button inside it. Add below styles in your code:
OuterView: {
flex: 1,
flexDirection: 'row',
},
buttonsStyle: {
flex: 1,
}