Here in my code I am trying to reload the page on Alert ok button . But its not working . How can I rerender the page on ok button , this is written on same page that I have to reload .
In my code I am sung form and inputfield compont for my login screen . All code is there below . I am tryning to is , when I am getting any respons like wrong username and password in alere then ok button I have to clear my form field . While here ists not happning . For this I am deleting my value mannully.
Please sugget .
import React from 'react';
import { Alert, Dimensions, ImageBackground, Text, View, TouchableOpacity, Platform , StatusBar} from 'react-native';
import Formbox from './ui/form';
import { RegularText, } from './ui/text';
import pkg from '../../package';
import _ from 'lodash';
import { LOGIN_BACKGROUND , LOGIN_BACKGROUND_DARK} from '../images'
import { widthPercentageToDP as wp, heightPercentageToDP as hp } from 'react-native-responsive-screen';
import parentStyle from '../themes/parent.style'
import LottieView from 'lottie-react-native';
const deviceHeight = Dimensions.get('window').height;
const deviceWidth = Dimensions.get('window').width;
const styles = {
imgBG: { width: '100%', height: '100%' },
mainContainer: {
flex: 1,
alignItems: 'stretch',
justifyContent: 'flex-start',
height: deviceHeight,
paddingLeft: 20,
paddingRight: 20
},
logoContainer: { justifyContent: 'center', alignItems: 'center', background: 'red', marginTop: -50 },
logoView: {
borderWidth: 3,
borderColor: '#FFFFFF',
borderRadius: 4,
zIndex: -1,
...Platform.select({
ios: {
shadowOpacity: 0.45,
shadowRadius: 3,
shadowColor: '#090909',
shadowOffset: { height: 1, width: 0 }
},
android: {
elevation: 3
}
})
}
};
export default class Login extends React.Component {
constructor(props) {
super(props);
}
componentDidUpdate(prevProps, prevState, snapshot) {
if (this.props.error) {
if (this.props.error.graphQLErrors[0] !== undefined) {
const errorDetails = _.map(_.split(this.props.error.graphQLErrors[0].message, '#'), _.trim)
const header = errorDetails[0];
const message = errorDetails[1];
Alert.alert(header, message, [{
text: 'OK',
onPress: () => this.props.navigation.push('Auth')
},]);
} else {
Alert.alert('Network Error', this.props.error.networkError.message, [{
text: 'OK',
onPress: () => this.props.navigation.navigate('Auth')
},]);
}
}
}
componentDidMount(){
StatusBar.setBarStyle('dark-content');
}
render() {
let loginForm = [
{ label: 'Username', icon: 'person', type: 'text' },
{ label: 'Password', icon: 'key', type: 'password' }
];
let submitBtn = { label: 'Login', OnSubmit: this.props.onLogin };
let appliedTheme = this.props.theme;
let appliedMode = this.props.mode;
return (
<ImageBackground source={appliedMode === 'light' ? LOGIN_BACKGROUND : LOGIN_BACKGROUND_DARK} style={styles.imgBG}>
<View style={styles.mainContainer}>
<View style={{ flexDirection: 'column', alignContent: 'center', justifyContent: 'center', flex: 1 }}>
<View style={{ flex: 0.75, justifyContent: 'center' }}>
<RegularText text={'Welcome,'} textColor='#57606F' style={{ fontSize: hp('5%') }} />
<RegularText text={'Sign in to continue'} textColor='#ABAFB7' style={{ fontSize: hp('3.5%') }} />
</View>
<View style={{ flex: 2 }}>
<View style={{ flex: 2 }}>
<Formbox
theme={parentStyle[appliedTheme] ? parentStyle[appliedTheme][appliedMode].primaryButtonColor : undefined}
mode={this.props.mode}
formFields={loginForm}
submit={submitBtn}
that={this}
mutation={this.props.token}
/>
<View style={{ height: hp(20), zIndex:10, top: -25}}>
{this.props.loading && (
<LottieView source={require('./animations/login_authentication.json')} autoPlay loop />
)}
</View>
<View style={{top:-70, zIndex:10}}>
{false && <View style={{ alignItems: 'center' }}>
<RegularText text={`v${pkg.version}`} textColor='#ABAFB7' style={{ fontSize: hp('2%') }} />
</View>}
<View style={{ alignItems: 'flex-end' }}>
<View style={{ flexDirection: 'row' }}>
<RegularText text={`New User?`} textColor='#4A494A' style={{ fontSize: hp('2%') }} />
<TouchableOpacity>
<RegularText text={` REGISTER`} textColor={parentStyle[appliedTheme] ? parentStyle[appliedTheme][appliedMode].primaryButtonColor : '#fff'} style={{ fontSize: hp('2%'), fontWeight: 'bold' }} />
</TouchableOpacity>
</View>
</View>
</View>
</View>
</View>
</View>
</View>
</ImageBackground>
);
}
}
////// Form ,js
import React, { Component } from 'react';
import { View, Platform, Dimensions } from 'react-native';
import { PrimaryBtn,PrimaryAbsoluteGradientBtn } from './buttons';
import { InputField, PasswordField } from './inputField';
import { Form } from 'native-base';
import { widthPercentageToDP as wp, heightPercentageToDP as hp } from 'react-native-responsive-screen';
const deviceHeight = Dimensions.get('window').height;
const deviceWidth = Dimensions.get('window').width;
export default class Formbox extends Component {
constructor(props) {
super(props);
}
OnSubmit() {
let { formFields, that, submit, mutation } = this.props;
submit.OnSubmit.bind(that, formFields, mutation)();
}
OnChange(field, target) {
this.props.formFields.forEach(function (formField, indx) {
if (formField.label === field.label) {
formField.value = target;
}
});
}
renderFields(field, indx) {
let { label, icon, type } = field;
if (label && icon) {
if (type === 'password') {
return <PasswordField key={label + indx} type={type ? type : ''} label={label} icon={icon}
OnChange={this.OnChange} that={this} />;
}
return <InputField key={label + indx} type={type ? type : ''} label={label} icon={icon} OnChange={this.OnChange}
that={this} />;
}
}
render() {
let { formFields, submit, that , theme, mode} = this.props;
return (
<View style={{ width: '100%' }}>
<Form style={{ width: '95%' }}>
{formFields.map((field, indx) => this.renderFields(field, indx))}
<View style={{ marginTop: 60 }}>
<PrimaryAbsoluteGradientBtn label={submit.label} OnClick={this.OnSubmit} that={this} backgroundColor={theme}/></View>
</Form>
</View>
);
}
}
/// input fields js
import React, { Component } from 'react';
import { Icon, Input, Item, Label } from 'native-base';
import { View } from 'react-native';
import { DoNothing } from '../services/services';
class InputField extends Component {
constructor(props) {
super(props);
}
render() {
let { label, OnChange, icon, that,type, keyboardType } = this.props;
return (
<View>
<Item floatingLabel>
{icon && <Icon active name={icon}/>}
{label && <Label>{label}</Label>}
<Input
secureTextEntry={type === 'password'}
onChangeText={OnChange ? (e) => OnChange.bind(that, this.props, e)() : DoNothing.bind(this)}
keyboardType={keyboardType || 'default'}
autoCapitalize = 'none'
autoCorrect={false}
/>
</Item>
</View>
);
}
}
class PasswordField extends Component {
constructor(props) {
super(props);
this.state = {
isMasked: true
};
}
_toggleMask = () => {
this.setState({
isMasked: !this.state.isMasked
});
};
render() {
let { label, OnChange, icon, that, type } = this.props;
const { isMasked } = this.state;
return (
<View>
<Item floatingLabel>
{icon && <Icon active name={icon}/>}
<Label>{label}</Label>
<Input
autoCapitalize = 'none'
secureTextEntry={isMasked}
onChangeText={OnChange ? (e) => OnChange.bind(that, this.props, e)() : DoNothing.bind(this)}
/>
<Icon name={isMasked ? "md-eye-off" : "md-eye"} active type="Ionicons" onPress={() => this._toggleMask()}/>
</Item>
</View>
);
}
}
const styles = {
dark: {
color: "#000000"
},
light: {
color: "#EAEAEA"
}
}
export { InputField, PasswordField };
You can either do :
onPress: () => this.props.navigation.push('Auth')
or do something like :
onPress: () => this.setState({name:'random'})
These both will trigger re rendering, Hope it helps. feel free for doubts
Related
I have created a React Context API, I have stored information such as first_name, hobbies, DOB etc in it. I have crated a state in the context file and a function that changes the state when called. I am using the context in SignUpForm1.js and SignUpForm2.js, I am trying to update the state of context variables when ever there is a change in the text field, but the data in the context is not updating.
UserData.js (Context)
import React from "react";
import { useState } from "react";
import {Text} from 'react-native';
import { createContext } from "react";
const SignUpContext = React.createContext({});
const UserData = (props)=>{
var state = {
pref_pronoun: "",
DOB: "",
course: "",
first_name: "",
hobby_1: "",
hobby_2: "",
hobby_3: "",
hobby_4: "",
hobby_5: "",
home_city: "",
last_name: "",
nationality: "",
student_email: "",
university: "",
}
const [userDetails , setDetails] = useState(state);
const updateFormData = (field, value) => {
setDetails({ [field]: value });
console.log(state);
};
return (
<SignUpContext.Provider value = {{state, updateFormData}}>
{props.children}
</SignUpContext.Provider>
)
}
export {SignUpContext, UserData} ;
SignUpForm1.js
import {
Image,
Text,
StyleSheet,
View,
StatusBar,
ScrollView,
RefreshControl,
} from "react-native";
import DropDown from "./DropDown";
import Input from "./Input";
import {
KeyboardAvoidingView,
TouchableWithoutFeedback,
Keyboard,
} from "react-native";
import { useCallback, useContext, useState } from "react";
import CustomButton from "./CustomButton";
import { useNavigation } from "#react-navigation/native";
import DateTimePickerModal from "react-native-modal-datetime-picker";
import { Button } from "react-native";
import { SignUpContext, UserData } from "./GlobalUtil/UserData";
const HideKeyboard = ({ children }) => (
<TouchableWithoutFeedback onPress={() => Keyboard.dismiss()}>
{children}
</TouchableWithoutFeedback>
);
function SignUpForm1() {
const [isDatePickerVisible, setDatePickerVisibility] = useState(false);
const s_context = useContext(SignUpContext);
const showDatePicker = () => {
setDatePickerVisibility(true);
};
const hideDatePicker = () => {
setDatePickerVisibility(false);
};
const navigation = useNavigation();
const NationalityData = ["Football", "Cricket", "Programmming", "Coding"];
const [refreshing, setRefreshing] = useState(false);
const onRefresh = useCallback(() => {
setRefreshing(true);
setTimeout(() => {
setRefreshing(false);
}, 2000);
}, []);
const statusBarHeight = Platform.OS === "ios" ? 50 : StatusBar.currentHeight;
return (
<KeyboardAvoidingView behavior="padding">
<HideKeyboard>
<View
style={{
height: "100%",
width: "100%",
backgroundColor: "#f1be63",
}}
>
<View
style={{ backgroundColor: "#f1be63", height: statusBarHeight }}
>
<StatusBar barStyle="dark-content" />
</View>
<ScrollView
contentContainerStyle={styles.rootContainer}
refreshControl={
<RefreshControl
refreshing={refreshing}
onRefresh={onRefresh}
/>
}
>
<Image
source={require("../assets/aeroplane.png")}
style={styles.image}
resizeMode="contain"
/>
<Text style={styles.header}>Let's get you set up</Text>
<Text style={styles.lowerHeader}>
(we promise that it won't take long)
</Text>
<View style={[styles.textFieldsContainer]}>
<View style={{ alignItems: "center" }}>
<Input
isLabel={true}
label="Preferred Pronoun"
placeholder="He/Him"
onChangeText={(text) => {
s_context.updateFormData("pref_pronoun", text);
}}
/>
<Input
isLabel={true}
label="First Name"
placeholder="Cameron"
onChangeText={(text) => {
s_context.updateFormData("first_name", text);
}}
/>
<Input
isLabel={true}
label="Last Name"
placeholder="Cox"
onChangeText={(text) => {
s_context.updateFormData("last_name", text);
}}
/>
<View
style={{
backgroundColor: "white",
width: "80%",
borderRadius: 5,
marginTop: 10,
}}
>
<Button
title="Date of Birth"
onPress={showDatePicker}
color="gray"
/>
</View>
<DateTimePickerModal
isVisible={isDatePickerVisible}
mode="date"
onConfirm={(date) => {
s_context.updateFormData('dob', date);
hideDatePicker();
}}
onCancel={hideDatePicker}
buttonTextColorIOS="white"
pickerContainerStyleIOS={{ backgroundColor: "#D89D35" }}
isDarkModeEnabled
/>
</View>
<View style={{ alignItems: "center" }}>
<DropDown
data={NationalityData}
placeholder="Nationality"
onSelect={(selectedItem, index) => {
s_context.updateFormData("nationality", selectedItem);
}}
/>
<DropDown
data={NationalityData}
placeholder="University"
onSelect={(selectedItem, index) => {
s_context.updateFormData("university", selectedItem);
}}
/>
<DropDown
data={NationalityData}
placeholder="Course"
onSelect={(selectedItem, index) => {
s_context.updateFormData("course", selectedItem);
}}
/>
<DropDown
data={NationalityData}
placeholder="HomeTown City"
onSelect={(selectedItem, index) => {
s_context.updateFormData("homeCity", selectedItem);
}}
/>
<CustomButton
isBorder={true}
title="Next"
onPress={() => {
navigation.navigate("SignUp2");
}}
/>
</View>
</View>
</ScrollView>
</View>
</HideKeyboard>
</KeyboardAvoidingView>
);
}
const styles = StyleSheet.create({
rootContainer: {
height: "125%",
justifyContent: "flex-start",
alignItems: "center",
marginTop: 24,
},
textFieldsContainer: {
width: "100%",
flex: 1,
},
image: {
width: "25%",
height: "10%",
marginTop: 24,
},
header: {
color: "white",
fontSize: 26,
fontWeight: "bold",
marginVertical: 6,
},
lowerHeader: {
color: "white",
fontSize: 12,
marginBottom: 24,
},
});
export default SignUpForm1;
SignUpForm2.js
import {
View,
Text,
TouchableWithoutFeedback,
StyleSheet,
StatusBar,
ScrollView,
} from "react-native";
import { KeyboardAvoidingView } from "react-native";
import { Avatar } from "react-native-elements";
import Input from "./Input";
import DropDown from "./DropDown";
import { Keyboard } from "react-native";
import { Platform } from "react-native";
import { useNavigation } from "#react-navigation/native";
import CustomButton from "./CustomButton";
import { useState, useContext } from "react";
import { createNewUser } from "./util/auth";
import { SignUpContext, UserData } from "./GlobalUtil/UserData";
const HideKeyboard = ({ children }) => (
<TouchableWithoutFeedback onPress={() => Keyboard.dismiss()}>
{children}
</TouchableWithoutFeedback>
);
function SignUpForm2() {
const s_context = useContext(SignUpContext);
async function FinishBtnHandler()
{
console.log("Creating New User");
console.log("Email: " + emailText.trim());
console.log("Password: " + passwordText.trim());
await createNewUser(emailText.trim(), passwordText.trim());
}
const navigation = useNavigation();
const hobbiesData = ["Football", "Cricket", "Programmming", "Coding"];
const [emailText, setEmailText] = useState("");
function handleEmailText(newText) {
console.log("Email: " + newText);
setEmailText(newText);
}
const [passwordText, setPasswordText] = useState("");
function handlePasswordText(newText) {
console.log("Password: " + newText);
setPasswordText(newText);
}
function avatarPressHandler() {
console.log("Pressed!");
}
const statusBarHeight = Platform.OS === "ios" ? 50 : StatusBar.currentHeight;
return (
<KeyboardAvoidingView behavior="padding" style={{ flex: 1 }}>
<HideKeyboard>
<ScrollView>
<View
style={{
position: "absolute",
top: 0,
left: 0,
right: 0,
zIndex: 999,
}}
>
<View
style={{
backgroundColor: "#f1be63",
height: statusBarHeight,
}}
>
<StatusBar barStyle="dark-content" />
</View>
</View>
<View style={[styles.rootContainer, { paddingBottom: 48 }]}>
<View style={styles.lowerContainer}>
<Text style={styles.primaryText}>You're almost there!</Text>
<Avatar
rounded
size={170}
containerStyle={{ alignSelf: "center", marginTop: 24 }}
//icon={{ name: "user", type: "font-awesome" }}
overlayContainerStyle={{ backgroundColor: "#f1be63" }}
source={{
uri: "https://cdn.pixabay.com/photo/2019/11/03/20/11/portrait-4599553__340.jpg",
}}
>
<Avatar.Accessory size={20} onPress={avatarPressHandler} />
</Avatar>
<Text
style={[
styles.secondaryText,
{ marginBottom: 8, marginTop: 16 },
]}
>
Express yourself & customize your avatar
</Text>
<Input
isLabel={true}
label="Student Email"
placeholder="cce22rnu#uea.ac.uk"
onChangeText={handleEmailText}
defaultValue={emailText}
/>
<Input
isLabel={true}
label="Create Password"
placeholder="iLoveyoushakila123"
onChangeText={handlePasswordText}
defaultValue={passwordText}
/>
<Input
isLabel={true}
label="Confirm Password"
placeholder="iLoveyoushakila123"
/>
<Text style={styles.secondaryText}>
Now the exciting part - select your top 5 hobbies
</Text>
<View style={{ alignItems: "center", marginTop: 16 }}>
<DropDown
data={hobbiesData}
onSelect={(selectedItem, index) => {
s_context.updateFormData("hobby_1", selectedItem);
}}
/>
<DropDown data={hobbiesData} onSelect={(selectedItem, index) => {
s_context.updateFormData("hobby_2", selectedItem);
}}/>
<DropDown data={hobbiesData} onSelect={(selectedItem, index) => {
s_context.updateFormData("hobby_3", selectedItem);
}}/>
<DropDown data={hobbiesData} onSelect={(selectedItem, index) => {
s_context.updateFormData("hobby_4", selectedItem);
}}/>
<DropDown data={hobbiesData} onSelect={(selectedItem, index) => {
s_context.updateFormData("hobby_5", selectedItem);
}}/>
<CustomButton
isBorder={true}
title="Finish"
/*onPress={()=>{navigation.navigate("ConfirmId")}}*/ onPress={
FinishBtnHandler
}
/>
</View>
</View>
</View>
</ScrollView>
</HideKeyboard>
</KeyboardAvoidingView>
);
}
const styles = StyleSheet.create({
rootContainer: {
flex: 1,
justifyContent: "flex-start",
alignItems: "center",
backgroundColor: "#f1be63",
marginTop: 48,
backgroundColor: "#f1be63",
},
lowerContainer: {
flex: 1,
width: "100%",
alignItems: "center",
},
primaryText: {
color: "white",
fontSize: 24,
fontWeight: "bold",
},
secondaryText: {
marginTop: 8,
color: "white",
fontSize: 12,
fontWeight: "bold",
},
});
export default SignUpForm2;
You need to pass your userDetails state variable to the context, not the initial state value
<SignUpContext.Provider value={{ state: userDetails, updateFormData }}>
{props.children}
</SignUpContext.Provider>
Passing the initial state object will not see any updates you make.
Also, you should use the functional updates format to dynamically set properties in your state
setDetails((prev) => ({ ...prev, [field]: value }));
Finally, console logging state is a pointless exercise that often gives unexpected results. Just don't do it
The issue is that you are using state instead of userDetails in the updateFormData function. The state variable is never updated and remains the same initial value. To fix this, you should use setDetails instead of setState in the updateFormData function.
const updateFormData = (field, value) => {
setDetails({ ...userDetails, [field]: value });
console.log(userDetails);
};
Also, you are passing state in the SignUpContext.Provider value. You should pass userDetails instead of state.
return (
<SignUpContext.Provider value={{ userDetails, updateFormData }}>
{props.children}
</SignUpContext.Provider>
);
I'm using the Picker component of react native and want to apply CSS like background color for the selected item in the dropdown list of Picker.
below is my code snippet:
<Text style={clStyle.schoolNameLabel}>School Board*</Text>
<Picker
mode="dropdown"
itemStyle={clStyle.schoolNamePickerStyle}
style={clStyle.schoolNamePickerStyle}
placeholder="Select"
selectedValue={values.board_id}
onValueChange={(value) => {
handleSchoolBoardChange(value, setFieldTouched, handleChange);
}}
enabled={schools && schools.length > 0 ? false : true}
>
<Picker.Item label="Select" color="#ccc" value="" />
{updateBoardDropdown()}
</Picker>
updateBoardDropdown = () => {
try {
const all_items =
this.props.metaData &&
this.props.metaData.boardResponse &&
this.props.metaData.boardResponse.length > 0 &&
this.props.metaData.boardResponse.map((_board: BoardResponse, i: number) => {
return (
<Select.Item
key={_board.id}
backgroundColor="yellow"
color="red"
label={_board.name}
value={_board.id.toString()}
/>
);
});
return all_items;
} catch (e) {
SentryException({
property: '🚀 ~ file: create-lead-screen.tsx ~ line 674 ~ CreateLead ~ e',
message: e as Error,
});
}
};
Please help Thanks
In updateBoardDropdown add check of values.board_id== _board.id like
<Select.Item
key={_board.id}
backgroundColor="yellow"
color="red"
label={_board.name}
value={_board.id.toString()}/>
to
<Select.Item
key={_board.id}
backgroundColor={values.board_id== _board.id ? "grey":"yellow"}
color="red"
label={_board.name}
value={_board.id.toString()}/>
you can use the dropdown from native-base and here is the code.
import { NativeBaseProvider, Select } from 'native-base';
import React, { memo } from 'react';
import { Text, View } from 'react-native';
import { RFValue } from 'react-native-responsive-fontsize';
import { hp, wp } from '../constants/scaling';
import { colors, fonts } from '../constants/theme';
import selectStyles from '../styles/selectStyles';
import { textStyles } from '../styles/textStyles';
const CustomDropDownInput = ({ label, placeholder, data, value, setValue }) => {
return (
<View style={{ alignSelf: 'center', height: hp(12) }}>
<NativeBaseProvider>
<Text
style={{
...textStyles.Label,
color: 'rgba(255,255,255,1)',
alignSelf: 'flex-start'
}}>
{label}
</Text>
<Select
useNativeDriver={true}
selectedValue={value}
minWidth={wp(96)}
accessibilityLabel={placeholder}
placeholder={placeholder}
placeholderTextColor={'rgba(255,255,255,1)'}
_item={selectStyles._item}
customDropdownIconProps={{
color: '#fff',
marginRight: wp(3)
}}
_selectedItem={selectStyles._selectedItem}
mt={1}
borderWidth={0}
borderRadius={0}
h={hp(7)}
backgroundColor={colors.inputBgColor}
fontFamily={fonts.Medium}
color={'#fff'}
fontSize={RFValue(14)}
borderBottomColor={'#fff'}
borderBottomWidth={1}
style={{
backgroundColor: '#0000',
borderWidth: 0
}}
onValueChange={itemValue => setValue(itemValue)}>
{data.map((item, index) => {
return (
<Select.Item
label={item.label}
value={item.value}
key={`${index}`}
/>
);
})}
</Select>
</NativeBaseProvider>
</View>
);
};
const compareProps = (prevProps, nextProps) => {
if (prevProps == nextProps) {
return false;
}
return true;
};
export default memo(CustomDropDownInput, compareProps);
here are the selectStyles.js file
import {Icon} from 'native-base';
import React from 'react';
import {Platform} from 'react-native';
import {RFValue} from 'react-native-responsive-fontsize';
import Entypo from 'react-native-vector-icons/Entypo';
import {wp} from '../constants/scaling';
import {colors, fonts} from '../constants/theme';
const selectStyles = {
_item: {
pt: Platform.OS === 'android' ? 2 : 2,
pb: Platform.OS === 'android' ? 2 : 2,
borderBottomWidth: 1,
justifyContent: 'center',
borderRadius: 5,
borderBottomColor: 'rgba(0,0,0,.1)',
_text: {
includeFontPadding: false,
textAlign: 'center',
fontFamily: fonts.Medium,
fontSize: RFValue(13),
color: colors.textPrimaryColor,
},
},
_selectedItem: {
bg: colors.primaryColor,
justifyContent: 'center',
_text: {
includeFontPadding: false,
textAlign: 'center',
fontSize: RFValue(13),
textAlignVertical: 'center',
fontFamily: fonts.Bold,
color: '#fff',
},
endIcon: (
<Icon as={Entypo} name={'check'} size={wp(5)} color={colors.white} />
),
},
};
export default selectStyles;
When I tried alert("Hi") in renderMoreView function, it actually works, but to display the View is the problem I am facing
export default class Home extends Component {
state = {
moreButton: false,
};
renderMoreView = () => {
return (
<View style={{flex: 1, height: 50, width: 50}}>
<Text>Hi</Text>
</View>
);
};
render () {
return (
<View>
.....
<TouchableOpacity
underlayColor="transparent"
onPress={() => this.setState ({moreButton: true})}
>
<Feather name="more-vertical" size={25} />
</TouchableOpacity>
...
{this.state.moreButton ? this.renderMoreView () : null}
</View>
);
}
}
This is what I am trying to do]
If I understand your question right, you could use Modal component. https://facebook.github.io/react-native/docs/modal
This can be done using modal. But if you want to do it more simply, install and use the module. react-native-awesome-alerts
$ npm i react-native-awesome-alerts --save
Example
import React from 'react';
import { StyleSheet, View, Text, TouchableOpacity } from 'react-native';
import AwesomeAlert from 'react-native-awesome-alerts';
export default class App extends React.Component {
constructor(props) {
super(props);
this.state = { showAlert: false };
};
showAlert = () => {
this.setState({
showAlert: true
});
};
hideAlert = () => {
this.setState({
showAlert: false
});
};
render() {
const {showAlert} = this.state;
return (
<View style={styles.container}>
<Text>I'm AwesomeAlert</Text>
<TouchableOpacity onPress={() => {
this.showAlert();
}}>
<View style={styles.button}>
<Text style={styles.text}>Try me!</Text>
</View>
</TouchableOpacity>
<AwesomeAlert
show={showAlert}
showProgress={false}
title="AwesomeAlert"
message="I have a message for you!"
closeOnTouchOutside={true}
closeOnHardwareBackPress={false}
showCancelButton={true}
showConfirmButton={true}
cancelText="No, cancel"
confirmText="Yes, delete it"
confirmButtonColor="#DD6B55"
onCancelPressed={() => {
this.hideAlert();
}}
onConfirmPressed={() => {
this.hideAlert();
}}
/>
</View>
);
};
};
const styles = StyleSheet.create({
container: {
flex: 1,
alignItems: 'center',
justifyContent: 'center',
backgroundColor: '#fff',
},
button: {
margin: 10,
paddingHorizontal: 10,
paddingVertical: 7,
borderRadius: 5,
backgroundColor: "#AEDEF4",
},
text: {
color: '#fff',
fontSize: 15
}
});
I am trying to insert a background image into my create-react-native project. I would like to be able to add this image: https://i.pinimg.com/736x/80/29/a9/8029a9bf324c79b4803e1e5a2aba25f3--costume-makeup-iphone-wallpaper.jpg. I have tried applying it to the stylesheet but it is not accepting the background-image tag. I am very new at react.
import React from 'react';
import { StyleSheet, Text, View, TextInput, Button} from 'react-native';
import ListItem from "/Users/Westin/assignment5/ListItem";
export default class App extends React.Component {
state ={
thing: "",
things: [],
};
thingValueChanged = value =>{
//alert(value);
this.setState({
thing: value
});
}
onClickingAdd = () =>
{
if(this.state.thing === "")
{
return;
}
this.setState(prevState => {
return {
things: prevState.things.concat(prevState.thing)
};
});
}
render() {
const thingsOut = this.state.things.map((thing,i) => (<ListItem key = {i} thing={thing} />))
return (
<View style={styles.container}>
<View style={styles.header}>
<Text style={styles.headerText}>My Favourite Things</Text>
</View>
<View style={styles.input}>
<TextInput
value={this.state.thing}
placeholder="Add your favourite things"
style={styles.inputbox}
onChangeText={this.thingValueChanged}
/>
<Button
title="Add"
style={styles.addButton}
onPress = {this.onClickingAdd}
/>
</View>
<View>
{thingsOut}
</View>
</View>
);
}
}
const styles = StyleSheet.create({
container: {
flex: 1,
backgroundColor: '#e6eeff',
alignItems: 'center',
justifyContent: 'flex-start',
paddingTop: 30,
},
header: {
padding: 10,
},
headerText: {
fontSize: 30,
color: '#003cb3',
},
inputbox: {
borderWidth: 1,
height: 40,
width: "70%",
},
addButton: {
width: "30%"
},
input: {
flexDirection: "row",
width: '100%',
justifyContent: "space-evenly",
alignItems: "center",
}
});
This is the code I tried to run
import React from 'react';
import { StyleSheet, Text, View, TextInput, Button, Image } from 'react-native';
import ListItem from "/Users/Westin/assignment5/ListItem";
const remote = 'https://i.pinimg.com/736x/80/29/a9/8029a9bf324c79b4803e1e5a2aba25f3--costume-makeup-iphone-wallpaper.jpg';
export default class BackgroundImage extends Component {
render() {
const resizeMode = 'center';
return (
<Image
style={{
flex: 1,
resizeMode,
}}
source={{ uri: remote }}
/>
);
}
}
AppRegistry.registerComponent('BackgroundImage', () => BackgroundImage);
export default class App extends React.Component {
state ={
thing: "",
things: [],
};
thingValueChanged = value =>{
//alert(value);
this.setState({
thing: value
});
}
onClickingAdd = () =>
{
if(this.state.thing === "")
{
return;
}
this.setState(prevState => {
return {
things: prevState.things.concat(prevState.thing)
};
});
}
render() {
const thingsOut = this.state.things.map((thing,i) => (<ListItem key = {i} thing={thing} />))
return (
<View style={styles.container}>
<View style={styles.header}>
<Text style={styles.headerText}>My Favourite Things</Text>
</View>
<View style={styles.input}>
<TextInput
value={this.state.thing}
placeholder="Add your favourite things"
style={styles.inputbox}
onChangeText={this.thingValueChanged}
/>
<Button
title="Add"
style={styles.addButton}
onPress = {this.onClickingAdd}
/>
</View>
<View>
{thingsOut}
</View>
</View>
);
}
}
const styles = StyleSheet.create({
container: {
flex: 1,
alignItems: 'center',
backgroundColor: 'black',
opacity: 0.5,
justifyContent: 'flex-start',
paddingTop: 30,
},
header: {
padding: 10,
},
headerText: {
fontSize: 30,
color: '#003cb3',
},
inputbox: {
borderWidth: 1,
height: 40,
width: "70%",
backgroundColor: 'white',
},
addButton: {
width: "30%"
},
input: {
flexDirection: "row",
width: '100%',
justifyContent: "space-evenly",
alignItems: "center",
}
});
It said I cant run two export classes
This code works for me:
import React from 'react';
import { StyleSheet, Text, View, ImageBackground } from 'react-native';
export default class App extends React.Component {
render() {
return (
<ImageBackground source=
{ {uri: 'https://i.pinimg.com/736x/80/29/a9/8029a9bf324c79b4803e1e5a2aba25f3--costume-makeup-iphone-wallpaper.jpg' } }
style={styles.container}
>
<Text>Some</Text>
<Text>Text</Text>
<Text>Centered</Text>
<Text>In</Text>
<Text>Columns</Text>
</ImageBackground>
);
}
}
const styles = StyleSheet.create({
container: {
flex: 1,
backgroundColor: '#fff',
alignItems: 'center',
justifyContent: 'center',
width: '100%'
},
});
You can read more about <ImageBackground/> here: https://facebook.github.io/react-native/docs/images#background-image-via-nesting
I'm working on a react native application, and using a DrawerNavigator. Unfortunately I'm not able to change the colour of the header, my SideMenu component looks like this:
import React from 'react';
import {
TouchableHighlight,
View,
ScrollView,
Image,
Platform,
StyleSheet
} from 'react-native';
import {NavigationActions} from 'react-navigation';
import {
RkStyleSheet,
RkText,
RkTheme
} from 'react-native-ui-kitten';
import { MainRoutes } from '../routes/routes';
import { MaterialCommunityIcons } from 'react-native-vector-icons';
import { connect } from 'react-redux';
const mapStateToProps = (state) => {
return {
}
}
class SideMenu extends React.Component {
static navigationOptions = ({navigation}) => {
const { state, setParams } = navigation;
return {
headerTintColor: 'red',
headerLeft: null,
headerStyle: { backgroundColor: 'rgba(77, 90, 139, 1)', shadowColor: 'transparent', borderBottomWidth: 0},
};
};
constructor(props) {
super(props);
this._navigateAction = this._navigate.bind(this);
}
_navigate(route) {
let resetAction = NavigationActions.reset({
index: 0,
actions: [
NavigationActions.navigate({routeName: route.id})
]
});
this.props.navigation.dispatch(resetAction)
}
_renderIcon() {
// if (RkTheme.current.name === 'light')
// return <Image style={styles.icon} source={require('../../assets/images/smallLogo.png')}/>;
// return <Image style={styles.icon} source={require('../../assets/images/smallLogoDark.png')}/>
}
handlePress = (route, index) => {
const { navigation } = this.props;
navigation.navigate(route.id);
}
render() {
let menu = MainRoutes.map((route, index) => {
return (
<TouchableHighlight
style={styles.container}
key={route.id}
underlayColor={RkTheme.current.colors.button.underlay}
activeOpacity={1}
onPress={() => this.handlePress(route, index)}>
<View style={styles.content}>
<View style={styles.content}>
<MaterialCommunityIcons size={25} style={{color: 'white'}} name={route.icon} />
<View style={{flex: 1, alignItems: 'left', paddingLeft: 15}}>
<RkText style={{color:'white'}}>{route.title}</RkText>
</View>
</View>
</View>
</TouchableHighlight>
)
});
return (
<View style={styles.root}>
<ScrollView
showsVerticalScrollIndicator={false}>
<View style={[styles.container, styles.content], {borderTopWidth: 0}}>
{this._renderIcon()}
</View>
{menu}
</ScrollView>
</View>
)
}
}
let styles = RkStyleSheet.create(theme => ({
container: {
height: 80,
paddingHorizontal: 16,
borderTopWidth: StyleSheet.hairlineWidth,
borderColor: 'white',
backgroundColor: 'rgba(77, 90, 139, 1)'
},
root: {
paddingTop: Platform.OS === 'ios' ? 20 : 0,
backgroundColor: 'rgba(77, 90, 139, 1)'
},
content: {
flex: 1,
flexDirection: 'row',
alignItems: 'center'
},
icon: {
marginRight: 13,
}
}));
export default connect(mapStateToProps)(SideMenu);
As you can see I do set the style of the header in the NavigationOptions like I do with the other components but the header stays the same colour.
Could this be because the DrawerNavigator is nested within a TabNavigator?
Thanks and really appreciate any help.
The Navigators are defined as so:
onst SettingsDrawerNavigator = DrawerNavigator(
{
SettingsScreen: {
screen: SettingsScreen
}
},
{
//initialRouteName: 'SettingsScreen',
drawerOpenRoute: 'DrawerOpen',
drawerCloseRoute: 'DrawerClose',
drawerToggleRoute: 'DrawerToggle',
contentComponent: (props) => <SideMenu {...props}/>
}
);
export default TabNavigator(
//Adds elements to the navigator at the bottom.
{
//Other tabs.
Account: {
screen: SettingsDrawerNavigator,
}
},
{
navigationOptions: ({ navigation }) => ({
initialRouteName: 'Home',
tabBarIcon: ({ focused }) => {
const { routeName } = navigation.state;
let iconName;
return (
// <Button badge vertical>
// <Badge ><Text>51</Text></Badge>
<Ionicons
name={iconName}
size={24}
style={{ marginBottom: -3 }}
color={focused ? Colors.tabIconSelected : Colors.tabIconDefault}
/>
// </Button>
);
},
}),
tabBarOptions: {
inactiveBackgroundColor: 'transparent',
activeBackgroundColor: 'transparent',
showLabel: false,
style: {
backgroundColor: '#4d5a8b',
}
},
tabBarComponent: TabBarBottom,
tabBarPosition: 'bottom',
animationEnabled: false,
swipeEnabled: false
}
);
Adding a header to the DrawerNavigator resulted in the following (red). I'm trying to set the white background at the top to red.