**how to pass array of multiple object in database react native . i aslo tried axios fetch and redux but its not responding **
import React, { useState, useEffect, useLayoutEffect } from 'react';
import { StyleSheet, Text, View, FlatList, TouchableOpacity, ScrollView, Dimensions } from 'react-native';
import { MaterialCommunityIcons } from '#expo/vector-icons';
import _ from "lodash"
import ClassSectionFilter from '../singleStudentAttendance/ClassSectionFilter';
import { CheckBox } from 'react-native-elements';
import { useIsFocused } from "#react-navigation/native";
import { useRegisterTechAttendanceMutation } from '../../../services/userAuthApi';
import Toast from "react-native-toast-message";
import axios from 'axios'
const windowWidth = Dimensions.get('window').width;
const windowHeight = Dimensions.get('window').height;
const MarkAttendanceScreen = ({ navigation, route }) => {
const [columns, setColumns] = useState([
"RollNo",
"Name",
])
const [direction, setDirection] = useState('')
const [selectedColumn, setSelectedColumn] = useState('')
const [ teachers , setTeachers] = useState([]);
const [ attendance, setAttendance ] = useState()
const [ attendanceState, setAttendanceState ] = useState('')
const fetchData = async () => {
const resp = await fetch(`http://192.168.18.64:8000/api/user/getSometeacher/${route.params.schoolId}`);
const data = await resp.json();
const schAdminId = (data.map(l => l._id ? { ...l, schoolAdminID: route.params.schoolAdminID } : l));
setAttendanceState(schAdminId)
};
const focus = useIsFocused();
useLayoutEffect(()=>{
fetchData();
}, [focus])
const MarkAttendance = (item, S) => {
const attend = (attendanceState.map(l => l._id === item._id ? { ...l, attendance: S } : l));
setAttendanceState(attend)
setAttendance(attend)
}
const [items, setItems] = useState()
const sortTable = (column) => {
const newDirection = direction === "desc" ? "asc" : "desc"
const sortedData = _.orderBy(teachers, [column], [newDirection])
setSelectedColumn(column)
setDirection(newDirection)
setTeachers(sortedData)
}
const [registerTechAttendance] = useRegisterTechAttendanceMutation();
const handleFormSubmit = async () => {
const bodyFormData = new FormData();
attendance.forEach((item) => {
bodyFormData.append('attendance', item);
});
const res = axios.post('http://192.168.18.64:8000/api/user/teacherattendance', bodyFormData)
if (res.data.status === "success") {
navigation.navigate("SchoolAdminHomePage");
}
if (res.data.status === "failed") {
Toast.show({
type: "warning",
position: "top",
topOffset: 0,
text1: res.data.message,
});
}
};
// const onSubmit = () => {
// const formData = new FormData()
// formData.append(attendance);
// console.log(formData)
// fetch('http://192.168.18.64:8000/api/user/teacherattendance', {
// method: "POST",
// body: JSON.stringify(formData),
// headers: {
// 'content-type': 'application/json',
// }
// })
// .then((response) => console.log(response))
// .catch(err => {
// console.log(err);
// })
// }
const tableHeader = () => (
<View style={styles.tableHeader} >
{
columns.map((column, index) => {
{
return (
<TouchableOpacity
key={index}
style={styles.columnHeader}
onPress={() => sortTable(column)}>
<Text style={styles.columnHeaderTxt}>{column + ""}
{selectedColumn === column && <MaterialCommunityIcons
name={direction === "desc" ? "arrow-down-drop-circle" : "arrow-up-drop-circle"}
/>
}
</Text>
</TouchableOpacity>
)
}
})
}
</View>
)
return (
<View style={{ height: windowHeight, width: '100%' }}>
<View >
<ClassSectionFilter />
</View>
<FlatList
data={attendanceState}
keyExtractor={(item, index) => index + ""}
style={{ maxWidth: '100%' }}
ListHeaderComponent={tableHeader}
stickyHeaderIndices={[0]}
extraData={attendanceState}
renderItem={({ item, index }) => {
return (
<View style={{ ...styles.tableRow, backgroundColor: index % 2 == 1 ? "#F0FBFC" : "white", width: '100%', }}>
<Text style={{ ...styles.columnRowTxt, fontWeight: "bold" }}>{item.roll_no}</Text>
<Text style={{ ...styles.columnRowTxt }}>{item.first_name}</Text>
<ScrollView horizontal={true}
showsHorizontalScrollIndicator={true}
pagingEnabled={true}
style={{ width: '150%' }}
>
<View style={{ flexDirection: 'row', left: 40 }}>
<View
style={{
left: 23
}}
>
<CheckBox
title='P'
checkedColor='green'
checked={item.attendance === 'P' ? true : false}
checkedIcon="dot-circle-o"
unCheckedIcon='circle-o'
onPress={() => MarkAttendance(item, 'P')}
containerStyle={{
alignItems: 'center',
justifyContent: 'center',
height: 50,
right: 50,
alignItems: 'center',
justifyContent: 'center',
top: -10,
backgroundColor: 'transparent'
}}
/>
{/* <BouncyCheckbox
size={20}
fillColor="green"
unfillColor="#FFFFFF"
text="P"
iconStyle={{ }}
textStyle={{ }}
onPress={()=>MarkPresent()}
isChecked={false}
/> */}
</View>
<View style={{
left: 5
}}>
<CheckBox
title='A'
checkedColor='red'
checked={item.attendance === 'A' ? true : false}
checkedIcon="dot-circle-o"
unCheckedIcon='circle-o'
onPress={() => MarkAttendance(item, 'A')}
containerStyle={{
alignItems: 'center',
justifyContent: 'center',
height: 50,
right: 50,
alignItems: 'center',
justifyContent: 'center',
top: -10,
backgroundColor: 'transparent'
}}
/>
{/* <BouncyCheckbox
size={20}
fillColor="red"
unfillColor="#FFFFFF"
text="A"
iconStyle={{ }}
textStyle={{ }}
onPress={()=>MarkAbsent()}
/> */}
</View>
<View style={{
left: 5,
}}>
<CheckBox
title='L'
checkedColor='gray'
checked={item.attendance === 'L' ? true : false}
checkedIcon='dot-circle-o'
unCheckedIcon='circle-o'
onPress={() => MarkAttendance(item, 'L')}
containerStyle={{
alignItems: 'center',
justifyContent: 'center',
height: 50,
right: 70,
alignItems: 'center',
justifyContent: 'center',
top: -10,
backgroundColor: 'transparent',
}}
/>
</View>
</View>
</ScrollView>
</View>
)
}}
/>
<View>
<TouchableOpacity
onPress={handleFormSubmit}
style={{
justifyContent: "center",
alignItems: "center",
padding: 15,
width: "100%",
marginVertical: 5,
borderRadius: 50,
marginBottom: 60,
fontWeight: "bold",
backgroundColor: "#5062BD",
elevation: 1,
marginTop: 30,
bottom:20,
}}
>
<Text
style={{
color: "white",
justifyContent: "center",
alignItems: "center",
}}
>
Submit Attendance
</Text>
</TouchableOpacity>
</View>
</View>
);
}
const styles = StyleSheet.create({
tableHeader: {
flexDirection: "row",
justifyContent: "flex-start",
alignItems: "center",
backgroundColor: "#5062BD",
borderTopEndRadius: 10,
borderTopStartRadius: 10,
height: 50,
},
tableRow: {
flexDirection: "row",
height: 40,
margin: 2,
left: 8
},
columnHeader: {
width: "16%",
justifyContent: "center",
alignItems: "flex-start",
margin: 10
},
columnHeaderTxt: {
color: "white",
fontWeight: "bold",
},
columnRowTxt: {
width: "18%",
}
});
export default MarkAttendanceScreen
data also show in my console but it is not posting. i am also trying redux, fetch and axios method but its not give me a solution
enter image description here
Related
Version:
"react-native": "0.68.2",
"react-native-paper": "5.0.0-rc.3",
"react-native-vector-icons": "^9.2.0",
Problem: the fontFamily in the
<Text variant="displayLarge" theme={{ typescale: { displayLarge: { fontSize: 30, fontFamily: 'HelveticaNeue-Thin' },},}}> does not take effect while the <Text style={theme.fonts.thin}> does works as expected.
https://snack.expo.dev/#wztrustgrid/fontfamilyintheme
import { StyleSheet, View } from 'react-native';
import {
configureFonts,
Provider as PaperProvider,
MD3LightTheme as DefaultTheme,
Text,
} from 'react-native-paper';
const fontConfig = {
ios: {
thin: {
fontFamily: 'HelveticaNeue-Thin',
fontSize: 30,
},
},
};
const theme = {
...DefaultTheme,
fonts: configureFonts(fontConfig),
};
export default function App() {
return (
<PaperProvider
theme={theme}
>
<View style={styles.container}>
{/* Display correct font */}
<Text style={theme.fonts.thin}>
ABCDEFGHIJKLM NOPQRSTUVWXYZ abcdefghijklm nopqrstuvwxyz 1234567890
</Text>
{/* Display incorrect font */}
<Text
variant="displayLarge"
theme={{
typescale: {
displayLarge: { fontSize: 30, fontFamily: 'HelveticaNeue-Thin' },
},
}}
>
ABCDEFGHIJKLM NOPQRSTUVWXYZ abcdefghijklm nopqrstuvwxyz 1234567890
</Text>
</View>
</PaperProvider>
);
}
const styles = StyleSheet.create({
container: {
flex: 1,
backgroundColor: '#fff',
alignItems: 'center',
justifyContent: 'center',
},
});
I'm linking my backend with my frontend in react native and I get this error Can't find-variable: setUserEmail when I go to type in an email into the TextInput. I'm working on the login page and use a fetch API to log the user into the app. I followed a tutorial to the point but I'm getting this error each time I try to enter an email, I get a message say setUserEmail is declared but never used. Any help would be greately appreciated
import React, { Component, useState, createRef } from 'react';
import { StyleSheet, Text, TextInput, View, Dimensions, StatusBar, TouchableOpacity,Keyboard } from 'react-native';
export default function Login(){
const [userEmail, setUserEmail] = useState('');
const [userPassword, setUserPassword] = useState('');
const [loading, setLoading] = useState(false);
const handleSubmitPress = () => {
setLoading(true);
let dataToSend = {userEmail: userEmail, password: userPassword};
let formBody = [];
for (let key in dataToSend) {
let encodedKey = encodeURIComponent(key);
let encodedValue = encodeURIComponent(dataToSend[key]);
formBody.push(encodedKey + '=' + encodedValue);
}
formBody = formBody.join('&');
fetch('http://localhost:3000/users/users', {
method: "POST",
headers: {
Accept: "application/json",
"Content-Type": "application/json",
"Cache-Control": "no-cache",
Pragma: "no-cache",
Expires: "0",
},
body: JSON.stringify({
userEmail: userEmail,
password: userPassword,
os: Platform.OS === "ios" ? "iOS" : "Android",
}),
})
.then((response) => response.json())
.then((responseJson) => {
//Hide Loader
setLoading(false);
console.log(responseJson);
// If server response message same as Data Matched
if (responseJson.status === 'success') {
AsyncStorage.setItem('user_id', responseJson.data.email);
console.log(responseJson.data.email);
navigation.replace('DrawerNavigationRoutes');
} else {
setErrortext(responseJson.msg);
console.log('Please check your email id or password');
}
})
.catch((error) => {
//Hide Loader
setLoading(false);
console.error(error);
});
}
return(
<View style={style.container}>
<View style={style.parent}>
<Text style={style.title}>Login</Text>
<Text style={style.heading}>Please Sign in to continue</Text>
</View>
<View style={style.root}>
<TextInput name='txtEmail' placeholder='someone#something.com' style={style.email} onChangeText={(UserEmail) => setUserEmail(UserEmail)}/>
<TextInput type='password' name='txtPassword' placeholder='Password' secureTextEntry={true} style={style.password} onChangeText={(UserPassword) => setUserPassword(UserPassword)}/>
<Text style={style.forgotpassword}>Forgot Password?</Text>
<TouchableOpacity
title="Login"
style={style.login}
onPress={handleSubmitPress()}>
<Text style={style.login_caption}>Login </Text>
</TouchableOpacity>
</View>
<StatusBar hidden />
</View>
);
}
const style = StyleSheet.create({
container:{
width: Dimensions.get('window').width,
height: Dimensions.get('window').height,
},
forgotpassword:{
textAlign: 'right',
marginTop: 10,
},
login:{
width: 150,
height: 45,
backgroundColor: '#FFB900',
position: 'absolute',
right: 0,
marginLeft: 25,
marginRight: 15,
marginTop: 150,
borderRadius: 25,
},
login_caption:{
color: '#fff',
textAlign: 'left',
paddingLeft: 15,
justifyContent: 'center',
paddingTop: 12,
},
parent:{
marginTop: 85,
},
title:{
fontSize: 36,
fontWeight: "900",
paddingLeft: 25,
},
heading:{
color: '#C0C0C0',
paddingLeft: 25,
},
root:{
width: 250,
height: 350,
marginTop: 85,
alignSelf: 'center',
},
email:{
width: 275,
height:38,
borderColor: "#111",
borderWidth: 1,
fontSize: 16,
paddingLeft:10,
justifyContent: 'center',
borderRadius: 15,
alignSelf: 'center',
},
password:{
width: 275,
height:38,
borderColor: "#111",
alignSelf: 'center',
borderWidth: 1,
fontSize: 16,
paddingLeft:10,
justifyContent: 'center',
marginTop: 15,
borderRadius: 15,
}
});
UPDATED WITH CHANGES
With a little bit of cleaning, that what I ended up with:
import AsyncStorage from "#react-native-community/async-storage";
import React, { useState } from "react";
import { Dimensions, Platform, StatusBar, StyleSheet, Text, TextInput, TouchableOpacity, View } from "react-native";
const Login = () => {
const [userEmail, setUserEmail] = useState("");
const [userPassword, setUserPassword] = useState("");
const [errorText, setErrorText] = useState("");
const [loading, setLoading] = useState(false);
const handleSubmitPress = () => {
setLoading(true);
const dataToSend = { userEmail: userEmail, password: userPassword };
let formBody = [];
for (const key in dataToSend) {
const encodedKey = encodeURIComponent(key);
const encodedValue = encodeURIComponent(dataToSend[key]);
formBody.push(encodedKey + "=" + encodedValue);
}
formBody = formBody.join("&");
fetch("http://localhost:3000/users/users", {
method: "POST",
headers: {
Accept: "application/json",
"Content-Type": "application/json",
"Cache-Control": "no-cache",
Pragma: "no-cache",
Expires: "0",
},
body: JSON.stringify({
userEmail: userEmail,
password: userPassword,
os: Platform.OS === "ios" ? "iOS" : "Android",
}),
})
.then((response) => response.json())
.then((responseJson) => {
//Hide Loader
setLoading(false);
console.log(responseJson);
// If server response message same as Data Matched
if (responseJson.status === "success") {
AsyncStorage.setItem("user_id", responseJson.data.email);
console.log(responseJson.data.email);
// navigation.replace('DrawerNavigationRoutes');
} else {
setErrorText(responseJson.msg);
console.log("Please check your email id or password");
}
})
.catch((error) => {
//Hide Loader
setLoading(false);
console.error(error);
});
};
return (
<View style={styles.container}>
<View style={styles.parent}>
<Text style={styles.title}>Login</Text>
<Text style={styles.heading}>Please Sign in to continue</Text>
</View>
<View style={styles.root}>
<TextInput
name="txtEmail"
placeholder="someone#something.com"
style={styles.email}
onChangeText={(UserEmail) => setUserEmail(UserEmail)}
/>
<TextInput
type="password"
name="txtPassword"
placeholder="Password"
secureTextEntry={true}
style={styles.password}
onChangeText={(UserPassword) => setUserPassword(UserPassword)}
/>
<Text style={styles.forgotpassword}>Forgot Password?</Text>
<TouchableOpacity title="Login" style={styles.login} onPress={handleSubmitPress}>
<Text style={styles.login_caption}>Login </Text>
</TouchableOpacity>
</View>
<StatusBar hidden />
</View>
);
};
const styles = StyleSheet.create({
container: {
height: Dimensions.get("window").height,
width: Dimensions.get("window").width,
},
email: {
alignSelf: "center",
borderColor: "#111",
borderRadius: 15,
borderWidth: 1,
fontSize: 16,
height: 38,
justifyContent: "center",
paddingLeft: 10,
width: 275,
},
forgotpassword: {
marginTop: 10,
textAlign: "right",
},
heading: {
color: "#C0C0C0",
paddingLeft: 25,
},
login: {
backgroundColor: "#FFB900",
borderRadius: 25,
height: 45,
marginLeft: 25,
marginRight: 15,
marginTop: 150,
position: "absolute",
right: 0,
width: 150,
},
login_caption: {
color: "#fff",
justifyContent: "center",
paddingLeft: 15,
paddingTop: 12,
textAlign: "left",
},
parent: {
marginTop: 85,
},
password: {
alignSelf: "center",
borderColor: "#111",
borderRadius: 15,
borderWidth: 1,
fontSize: 16,
height: 38,
justifyContent: "center",
marginTop: 15,
paddingLeft: 10,
width: 275,
},
root: {
alignSelf: "center",
height: 350,
marginTop: 85,
width: 250,
},
title: {
fontSize: 36,
fontWeight: "900",
paddingLeft: 25,
},
});
export default Login;
There were few mistakes in your code,
you used setErrorText without declaring it.
this line <TouchableOpacity title="Login" style={styles.login} onPress={handleSubmitPress()}> was not good, maybe it was the cause of infinite rendering.
I solved all those errors very easily by using some extension in my IDE to clean code automatically like prettier and ESLint, and I used typescript. I really suggests that you do the same.
I want to place my svg at the bottom of the screen. I have tried flex properties and postion absolute (bottom:0) but svg doesn't go to the bottom of the screen, and when I give the absolute position of svg it disappears while zIndex also doesn't work. Here is my code.
here is snack.snack
import Otp from '../assets/otp2.svg';
import Waves from '../assets/waves.svg';
const windowHeight = Dimensions.get('window').height;
const SignUp = () => {
return (
<View style={styles.container}>
<View style={styles.section1}>
<View
style={{
// justifyContent: 'center',
alignItems: 'center',
flexDirection: 'row',
}}>
<Icon size={40} color="white" name="west" />
<Text style={styles.otpText}>OTP Verification</Text>
</View>
<Otp style={{marginBottom: 40}} />
</View>
<View style={styles.section2}>
{/* <View style={styles.section3}></View> */}
<View style={styles.wave}>
<Waves />
</View>
</View>
</View>
);
};
export default SignUp;
const styles = StyleSheet.create({
container: {
flex: 1,
},
section1: {
flex: 1,
backgroundColor: '#f07279',
justifyContent: 'space-evenly',
alignItems: 'center',
},
section2: {
flex: 1,
backgroundColor: '#fff',
// alignContent: 'flex-end',
// alignItems: 'flex-end',
},
section3: {
flex: 1,
backgroundColor: 'grey',
width: '80%',
height: '80%',
borderRadius: 25,
// position: 'absolute',
// zIndex: 1,
// top: -40,
},
otpText: {
fontSize: 25,
color: '#ffffff',
width: 200,
fontFamily: 'sans-serif-light',
},
wave: {
flex: 1,
// position: 'absolute',
// bottom: 0,
width: '100%',
// zIndex: 5,
// marginTop: '67%',
},
});
and here is the reference what i want to do.
Hello everyone i am learning REACT-NATIVE from last two months , i got a small issue with if-else condition render method ,while i am executing the code if condition is not working properly .
Can you please tell me the solution
import React, { Component } from 'react';
import {
Image, Platform, StyleSheet, Text, View, TextInput, Button, TouchableHighlight, Alert,
TouchableOpacity, ScrollView, ColorPropType, FlatList, SectionList, Dimensions, AsyncStorage,
Keyboard,
} from 'react-native';
import axios from 'axios';
import GlobalStore from '../GlobalStore';
const API_URL = GlobalStore.BASE_URL;
var ACCESS_TOKEN = 'access_token';
export default class LogInScreen extends React.Component {
static navigationOptions = {
title: 'LogIn',
headerStyle: {
backgroundColor: '#03A9F4',
},
headerTintColor: '#fff',
headerTitleStyle: {
fontWeight: 'bold',
},
};
/* *********** Code Starts Here ****************** */
constructor(props) {
super(props);
this.state = {
error: '',
userId: '',
user_id: '',
mobile: '',
password: '',
Token: '',
};
}
componentDidMount() {
this.get_Id();
this.getToken();
}
// get id from asyncStorage
async get_Id() {
try {
const userId = await AsyncStorage.getItem('USER_ID') // (STORAGE_KEY)
if (userId !== '' || userId !== null) {
this.setState({ userId: userId })
console.log('profile get_id id: =>', userId)
// this.getUserDetails(userId)
} else {
console.log('profile get_id id: => user_id=null')
Alert.alert('No user profile found LogIn Now ' + this.props.navigation.navigate('LogIn'))
}
} catch (error) {
alert('Failed to load profile get_Id() user_id.')
}
}
async storeToken(accessToken) {
try {
await AsyncStorage.setItem(ACCESS_TOKEN, accessToken);
this.getToken();
} catch (error) {
console.log('LogIn AsyncStorage Error: ' + error.message);
}
}
async getToken() {
try {
let token = await AsyncStorage.getItem(ACCESS_TOKEN);
this.setState({ Token: token })
console.log("LogIn Get token is :" + token);
} catch (error) {
console.log("something went wrong in getToken LogIn page")
}
}
async removeToken() {
try {
await AsyncStorage.removeItem(ACCESS_TOKEN);
this.getToken();
} catch (error) {
console.log("some thing went wrong removeToken LogIn page")
}
}
validate_Fields = () => {
const { mobile, password } = this.state
if (mobile == "") {
Alert.alert("please enter Mobile Number");
return false
}
if (mobile.length < 10) {
Alert.alert("please enter 10 digit Mobile Number");
return false
}
if ((password === "" && password.length < 6)) {
Alert.alert("please enter password minimum length should be 6");
return false
}
return true
}
// logIn function
logInUser() {
if (this.validate_Fields()) {
const { mobile, password } = this.state;
this.setState({ error: '', loading: true });
// NOTE HTTP is insecure, only post to HTTPS in production apps
axios.post(API_URL + '/usersapi/user_LogIn', {
mobile_no: mobile,
password: password
})
.then((response) => {
// console.log(JSON.stringify(response));
let accessToken = response.data.TOKEN;
this.storeToken(accessToken);
console.log("dataToken-LogIn:" + accessToken);
Alert.alert('LogIn Successfully ' + this.props.navigation.navigate('Profile', { accessToken }));
// Alert.alert('LogIn Successfully ' + + this.props.navigation.navigate('Profile'));
})
.catch((error) => {
console.log(error);
this.removeToken();
Alert.alert(' Login Failed try again , If you do not have an account, sign up first !');
});
}
}
render() {
if (this.state.userId !== '' || this.state.userId !== null) {
return (
// console.log('if block - No data found profile => LogIn now.:' + this.state.userId)
// Alert.alert('Please LogIn Now')
<View style={styles.container}>
<View style={styles.ifContainer}>
<Text style={styles.formHeader}>Thank you - you are already logedIn Got to</Text>
<TouchableOpacity style={[styles.buttonContainer, styles.greenButton]} onPress={() => this.props.navigation.navigate('Home')}>
<Text style={styles.buttonText}>Home</Text>
</TouchableOpacity>
<TouchableOpacity style={[styles.buttonContainer, styles.blueButton]} onPress={() => this.props.navigation.navigate('Profile')}>
<Text style={styles.buttonText}>Profile</Text>
</TouchableOpacity>
</View>
</View>
// Alert.alert('You are already LogedIn ' + this.props.navigation.navigate('Profile'))
)
} else {
return (
<View styel={styles.container}>
<View style={{ alignItems: 'center', justifyContent: 'center' }}>
<Text style={styles.formHeader}>LogIn</Text>
<View style={styles.inputContainer}>
<TextInput style={styles.inputs}
type='number'
value={this.state.mobile}
name="mobile"
maxLength={10}
placeholder="mobile"
keyboardType="numeric"
underlineColorAndroid='transparent'
onChangeText={(mobile) => this.setState({ mobile })} />
<Image style={styles.inputIcon} source={{ uri: 'https://img.icons8.com/color/48/000000/android.png' }} />
</View>
<View style={styles.inputContainer}>
<TextInput style={styles.inputs}
type='password'
value={this.state.password}
name="password"
placeholder="Password"
secureTextEntry={true}
underlineColorAndroid='transparent'
onChangeText={(password) => this.setState({ password })} />
<Image style={styles.inputIcon} source={{ uri: 'https://img.icons8.com/color/40/000000/password.png' }} />
</View>
<TouchableOpacity style={[styles.buttonContainer, styles.greenButton]} onPress={() => { this.logInUser() }}>
<Text style={styles.buttonText}>LogIn</Text>
</TouchableOpacity>
<TouchableOpacity style={[styles.buttonContainer, styles.blueButton]} onPress={() => this.props.navigation.navigate('Register')}>
<Text style={styles.buttonText}>Register</Text>
</TouchableOpacity>
</View >
</View>
)
}
}// Render Ends
} // Class Ends
const resizeMode = 'center';
const styles = StyleSheet.create({
container: {
flex: 1,
justifyContent: 'center',
alignItems: 'center',
backgroundColor: '#DCDCDC',
},
formHeader: {
flexDirection: 'row',
justifyContent: 'center',
alignItems: 'center',
marginBottom: 20,
fontSize: 30,
backgroundColor: 'transparent',
color: 'black',
},
inputContainer: {
borderBottomColor: '#F5FCFF',
backgroundColor: '#FFFFFF',
borderRadius: 30,
borderBottomWidth: 1,
width: 300,
height: 45,
marginBottom: 20,
flexDirection: 'row',
alignItems: 'center',
shadowColor: "#808080",
shadowOffset: {
width: 0,
height: 2,
},
shadowOpacity: 0.25,
shadowRadius: 3.84,
elevation: 5,
},
inputs: {
height: 45,
marginLeft: 16,
borderBottomColor: '#FFFFFF',
flex: 1,
fontSize: 20,
},
inputIcon: {
width: 30,
height: 30,
marginRight: 15,
justifyContent: 'center'
},
buttonContainer: {
height: 45,
flexDirection: 'row',
justifyContent: 'center',
alignItems: 'center',
marginBottom: 20,
width: 300,
borderRadius: 30,
backgroundColor: 'transparent'
},
greenButton: {
backgroundColor: "#00a63f",
shadowColor: "#808080",
shadowOffset: {
width: 0,
height: 9,
},
shadowOpacity: 0.50,
shadowRadius: 12.35,
elevation: 19,
},
blueButton: {
backgroundColor: "#4e8bd1",
shadowColor: "#808080",
shadowOffset: {
width: 0,
height: 9,
},
shadowOpacity: 0.50,
shadowRadius: 12.35,
elevation: 19,
},
buttonText: {
color: 'white',
fontSize: 20,
fontWeight: 'bold',
textShadowColor: 'rgba(0, 0, 0, 0.75)',
textShadowOffset: { width: -1, height: 1 },
textShadowRadius: 10
},
bgImage: {
flex: 1,
resizeMode,
position: 'absolute',
width: '100%',
height: '100%',
justifyContent: 'center',
}
});
LogInScreen.navigationOptions = {
title: 'LogIn',
};
please check the code and let me know if i wrote anything wrong in the code .
change if condition in render from or to and:
if (this.state.userId !== '' && this.state.userId !== null) {....}
Recommended: Change method get_Id to arrow function signature:
get_Id = async ()=> {
try {
const userId = await AsyncStorage.getItem('USER_ID') // (STORAGE_KEY)
if (userId !== '' || userId !== null) {
this.setState({ userId: userId })
console.log('profile get_id id: =>', userId)
// this.getUserDetails(userId)
} else {
console.log('profile get_id id: => user_id=null')
Alert.alert('No user profile found LogIn Now ' + this.props.navigation.navigate('LogIn'))
}
} catch (error) {
alert('Failed to load profile get_Id() user_id.')
}
}
Following is my minimal working example. It is 3 basic screens, and a Drawer screen. In the render() method of the DrawerScreen I am populating the drawer screen with the navigation items from the tabs array.
When I set the flex value of the navigationItem everything starts to behave weirdly.
The items don't show up in the drawer screen when reloading the app most of the time
When the items do show up, they disappear after they have been tapped on.
If the navigationItem style in the Stylesheet has no flex value, it works as expected. I don't understand what is happening and have no idea how to fix this.
Code:
const packageName = 'com.rnplayground';
class FirstTab extends React.Component {
render(){
console.log(this.props)
return(
<View style={{ flex: 1, alignItems: 'center', justifyContent: 'center' }}>
<Text>FirstTab</Text>
</View>
)
};
}
class SecondTab extends React.Component {
render(){
console.log(this.props)
return(
<View style={{ flex: 1, alignItems: 'center', justifyContent: 'center' }}>
<Text>SecondTab</Text>
</View>
)
};
}
class ThirdTab extends React.Component {
render(){
console.log(this.props)
return(
<View style={{ flex: 1, alignItems: 'center', justifyContent: 'center' }}>
<Text>ThirdTab</Text>
</View>
)
};
}
class DrawerScreen extends React.Component {
render(){
const {tabs} = this.props;
return(
<View style={styles.navigationContainer}>
{tabs.map((route, index) => {
const navigationLabel = route.title;
return (
<TouchableHighlight
key={route.screen}
onPress={() => {
this.props.navigator.switchToTab({
tabIndex: index
});
}}
underlayColor='blue'
>
<View style={styles.navigationItem}>
<Text style={styles.navigationLabel}>
{navigationLabel}
</Text>
</View>
</TouchableHighlight>
);
})}
</View>
)
};
}
function registerScreens(){
Navigation.registerComponent(`${packageName}.FirstTab`, () => FirstTab );
Navigation.registerComponent(`${packageName}.SecondTab`, () => SecondTab );
Navigation.registerComponent(`${packageName}.ThirdTab`, () => ThirdTab );
Navigation.registerComponent(`${packageName}.DrawerScreen`, () => DrawerScreen );
}
function startApp() {
registerScreens();
const tabs = [
{
screen: `${packageName}.FirstTab`,
title: 'FirstTab',
icon: require('./image.png'),
navigatorStyle: {
tabBarHidden: true,
},
},
{
screen: `${packageName}.SecondTab`,
title: 'SecondTab',
icon: require('./image.png'),
navigatorStyle: {
tabBarHidden: true,
},
},
{
screen: `${packageName}.ThirdTab`,
title: 'ThirdTab',
icon: require('./image.png'),
navigatorStyle: {
tabBarHidden: true,
},
},
];
Navigation.startTabBasedApp(
{
tabs: tabs,
drawer: {
left: {
screen: `${packageName}.DrawerScreen`,
passProps: {
tabs: tabs
},
fixedWidth: 800,
}
},
tabsStyle:{
tabBarHidden: true,
}
},
);
}
startApp();
Stylesheet:
const styles = StyleSheet.create({
navigationContainer:{
flex: 1,
width: '100%',
backgroundColor: 'white',
},
navigationItem: {
flex: 1,
}
});
Here is an imgur link showing the behavior in question.