validate-form-in-expo-style

React-Native Expo Form Validation Component Library with Floating Label!
===================
![N|Solid](https://opensource.org/licenses/MIT)

😉 Hey! I'm Radhakishan Jangid 😎. More about me Here ↩.

ℹ️ validate-form-in-expo-style is a Simple form validation component with floating label for React-Native inspired by react-native-form-validator. You can add floating label with this library and can validate form. I created this package for my personal use you can use it in yours too.

----------

My bad, that I don't have Mac or IPhone, so this library is tested only in android. Do check it in Mac and let me know if any problem occurs.

----------

📋 Table of Contents
--
- Install
- Supported Types
- Default Validation Rules
- Example
- How to use
- Props
- Methods
- Contributing
- License

📥 Install
--
``sh $ npm install validate-form-in-expo-style`or`sh $ yarn add react-native-stylish-accordion`Now we need to install react-native-reanimated and react-lifecycles-compat. If you are using Expo, to ensure that you get the compatible versions of the libraries, run:

`expo install react-native-reanimated react-native-gesture-handler react-lifecycles-compat`

If you are not using Expo, run the following:

`yarn add react-native-reanimated react-native-gesture-handler react-lifecycles-compat`

✔️ Supported types:- ---------- - TextInput 📝 Default Validation Rules are:- ---------- - matchRegexp - isEmail - isEmpty - required - trim - isNumber - isFloat - isPositive - minNumber - maxNumber - minFloat - maxFloat - minStringLength - maxStringLength - isString

Some rules that are added in validationName can accept extra parameter for validation, like:``javascript {...otherProps} validateNames={['minNumber:1', 'maxNumber:255', 'matchRegexp:^[0-9]$']} />``🎥 See the full example of form validation in react-native Expo:- ---------- ![Watch the video](https://youtu.be/y7bkVDu0LVA)

💡 How to use:- ----------

``javascript import React from 'react'; import { StyleSheet, View, Text, Dimensions, TouchableOpacity, Image, ScrollView } from 'react-native'; import { Form, InputText } from 'validate-form-in-expo-style'; import { FontAwesome, Feather } from "@expo/vector-icons"; class App extends React.Component { state = { first_name: "", number: "", last_name: "", email: '', user: { password: "", repeatPassword: "" }, } componentDidMount() { //You can add your own rules Form.addValidationRule('isValidPassword', (value) => { let passwordReg = /^(?=.\d)(?=.[a-z])(?=.[A-Z])(?=.[a-zA-Z]).{8,}$/; if (passwordReg.test(value) === false) { return false; } return true; }); Form.addValidationRule('isPasswordMatch', (value) => { if (value !== this.state.user.password) { return false; } return true; }); } componentWillUnmount() { // Remove own rules Form.removeValidationRule('isPasswordMatch'); Form.removeValidationRule('isValidPassword'); }

handlePassword = (event) => { const { user } = this.state; user.password = event.nativeEvent.text; this.setState({ user }); }

handleRepeatPassword = (event) => { const { user } = this.state; user.repeatPassword = event.nativeEvent.text; this.setState({ user }); }

handleChange = (email) => { this.setState({ email }); }

handleFirstName = (first_name) => { this.setState({ first_name }); } handleLastName = (last_name) => { this.setState({ last_name }); } handleNumber = (number) => { this.setState({ number }); } submit = () => { alert("form submit, thank you.") } handleSubmit = () => { this.refs.form.submit(); } render() { let Image_Http_URL = { uri: 'https://radhakishan.vpran.in/img/radhakishan-web-3.jpg' }; const { user } = this.state; return ( radhakishan404 validate-form-in-expo-style


                                                            name="first_name"
                                label="First Name"
                                placeholder="textfield with floating label"
                                validateNames={['required', "isString", "maxStringLength:30"]}
                                errorMessages={["This field is required", "Only characters allowed", "Max character limit is 30"]}
                                value={this.state.first_name}
                                onChangeText={this.handleFirstName}
                                type="text"
                                leftIcon={}
                                invalidIcon={< Feather
                                    name="alert-circle"
                                    color="red"
                                    size={20}
                                />}
                                validIcon={}
                                labelStyle={styles.labelStyle}
                                style={[styles.inputStyle]}
                                containerStyle={styles.inputContainerStyle}
                                floatingTopValue={hp('1%')}
                                floatingFontSize={hp('0.5%')}
                            />
                                                            name="last_name"
                                placeholder="textfield without floating label"
                                validateNames={['required', "isString", "maxStringLength:30"]}
                                errorMessages={["This field is required", "Only characters allowed", "Max character limit is 30"]}
                                value={this.state.last_name}
                                onChangeText={this.handleLastName}
                                type="text"
                                leftIcon={}
                                invalidIcon={< Feather
                                    name="alert-circle"
                                    color="red"
                                    size={20}
                                />}
                                validIcon={}
                                labelStyle={styles.labelStyle}
                                style={[styles.inputStyle]}
                                containerStyle={styles.inputContainerStyle}
                                floatingTopValue={hp('1%')}
                                floatingFontSize={hp('0.5%')}
                            />
                                                            name="phone"
                                label="Mobile"
                                placeholder="textfield with only number"
                                validateNames={['required', "isNumber", "maxStringLength:10"]}
                                errorMessages={["This field is required", "Only numbers allowed", "Max string limit is 10"]}
                                value={this.state.number}
                                onChangeText={this.handleNumber}
                                type="text"
                                leftIcon={}
                                invalidIcon={< Feather
                                    name="alert-circle"
                                    color="red"
                                    size={20}
                                />}
                                validIcon={}
                                labelStyle={styles.labelStyle}
                                style={[styles.inputStyle]}
                                containerStyle={styles.inputContainerStyle}
                                floatingTopValue={hp('1%')}
                                floatingFontSize={hp('0.5%')}
                            />
                                                            name="email"
                                label="email"
                                validateNames={['required', 'validEmail']}
                                errorMessages={['This field is required', 'Enter valid email address']}
                                placeholder="textfield with email validation"
                                type="text"
                                keyboardType="email-address"
                                value={this.state.email}
                                onChangeText={this.handleChange}
                                leftIcon={}
                                invalidIcon={< Feather
                                    name="alert-circle"
                                    color="red"
                                    size={20}
                                />}
                                validIcon={}
                                labelStyle={styles.labelStyle}
                                style={[styles.inputStyle]}
                                containerStyle={styles.inputContainerStyle}
                                floatingTopValue={hp('1%')}
                                floatingFontSize={hp('0.5%')}
                            />
                                                            name="password"
                                label="Password"
                                secureTextEntry
                                passwordHideIcon={< Ionicons
                                    name="eye-off-outline"
                                    color={constants.white}
                                    size={20}
                                />}
                                passwordShowIcon={< Ionicons
                                    name="eye-outline"
                                    color={constants.white}
                                    size={20}
                                />}
                                validateNames={['isValidPassword', 'required']}
                                errorMessages={['Minimum eight characters, at least one uppercase letter, one lowercase letter and one number', 'This field is required']}
                                type="text"
                                value={user.password}
                                placeholder="custom password validation"
                                leftIcon={}
                                onChange={this.handlePassword}
                                labelStyle={styles.labelStyle}
                                style={[styles.inputStyle]}
                                containerStyle={styles.inputContainerStyle}
                                floatingTopValue={hp('1%')}
                                floatingFontSize={hp('0.5%')}
                            />
                                                            name="repeatPassword"
                                label="Confirm Password"
                                secureTextEntry
                                validateNames={['isPasswordMatch', 'required']}
                                errorMessages={['Password mismatch', 'This field is required']}
                                type="text"
                                value={user.repeatPassword}
                                placeholder="Confirm your password"
                                onChange={this.handleRepeatPassword}
                                invalidIcon={< Feather
                                    name="alert-circle"
                                    color="red"
                                    size={20}
                                />}
                                leftIcon={}
                                labelStyle={styles.labelStyle}
                                style={[styles.inputStyle]}
                                containerStyle={styles.inputContainerStyle}
                                floatingTopValue={hp('1%')}
                                floatingFontSize={hp('0.5%')}
                            />
                                                            activeOpacity={0.8}
                                onPress={this.handleSubmit}
                                style={styles.appButtonContainer}
                            >
                                Submit
                            
                        
                    
                
            
        );
    }
}
export default App;

const styles = StyleSheet.create({ container: { flex: 1, backgroundColor: '#fff', alignItems: 'center', justifyContent: 'center', }, action: { width: Dimensions.get('window').width, padding: 20 }, appButtonContainer: { elevation: 8, backgroundColor: "#009688", borderRadius: 10, paddingVertical: 10, paddingHorizontal: 12, marginTop: 10 }, appButtonText: { fontSize: 18, color: "#fff", fontWeight: "bold", alignSelf: "center", textTransform: "uppercase" } labelStyle: { fontSize: hp('1.8%'), color: constants.white, paddingTop: hp('0.8%'), opacity: .9, // top: 20 }, inputStyle: { color: constants.white, paddingTop: hp('1%'), }, inputContainerStyle: { paddingBottom: hp('1%'), paddingTop: hp('1.3%'), borderWidth: 2, borderBottomWidth: 2, // borderColor: "#333333", // borderBottomColor: "#333333", borderColor: constants.primaryColor, borderBottomColor: constants.primaryColor, borderRadius: 15 }, inputIconStyle: { marginHorizontal: 10, fontSize: hp('2.3%'), backgroundColor: "#333333", borderRadius: 5, alignSelf: "center", paddingHorizontal: hp('0.2%'), paddingVertical: hp('0.1%'), } });``🔗 Props ---- #### Form Props

| Prop | Required | Type | Default value | Description | |-----------------|----------|----------|---------------|------------------------------------------------------------------------------------------------------------------------------| | onSubmit | true | function | | Callback for form that fires when all validations are passed | | instantValidate | false | bool | true | If true, form will be validated after each field change. If false, form will be validated only after clicking submit button. | | onError | false | function | | Callback for form that fires when some of validations are not passed. It will return array of elements which not valid. | | debounceTime | false | number | 0 | Debounce time for validation i.e. your validation will run afterdebounceTime ms when you stop changing your input |

#### InputText Props

| Prop | Required | Type | Default value | Description | |-----------------|----------|----------|---------------|----------------------------------------------------------------------------------------| | name | true | string | | Name of input field | | label | false | string | | Name of input Floating Label | | placeholder | false | string | | Placeholder of input before any value | | validateNames | false | array | | Array of validation. See list of default validation rules in above example. | | errorMessages | false | array | | Array of error messages. Order of messages should be the same asvalidateNamesprop. | | errorStyle | false | object | { container: { top: 0, left: 0, position: 'absolute' }, text: { color: 'red' }, underlineValidColor: 'gray', underlineInvalidColor: 'red' } } | Add your own error styles | | validatorListener | false | function | | It triggers after each validation. It will returntrue or false| | withRequiredValidator | false | bool | | Allow to userequiredvalidator in any validation trigger, not only form submit | | leftIcon | false | code, image | | Either include image or add Icon tag code to display left icon see above example | | invalidIcon | false | code, image | | Either include image or add Icon tag code to display error icon on right side see above example | | validIcon | false | code, image | | Either include image or add Icon tag code to display success icon on right side see above example | | secureTextEntry | false | bool | false | If true than show hide icon will get added automatically |

🔗 Methods ---- #### Form Methods

| Name | Params | Return | Descriptipon | |------------------|--------|--------|----------------------------------------------------| | resetValidations | | | Reset validation messages for all validated inputs | | isFormValid | dryRun: bool (default true) | Promise | Get form validation state in a Promise (true if whole form is valid). Run with dryRun = false` to show validation errors on form |
#### InputText Methods

| Name | Params | Return | Descriptipon |
|------------------|--------|--------|----------------------------------------------------|
| getErrorMessage | | | Get error validation message |
| validate | value: any, includeRequired: bool | | Run validation for current component |
| isValid | | bool | Return current validation state |
| makeInvalid | | | Set invalid validation state |
| makeValid | | | Set valid validation state |

💼 Contributing
----

This component covers all my needs, but feel free to contribute.

🖋 License
---
MIT © Radhakishan Jangid

React-Native Expo Form Validation Component Library with Floating Label!
===================
![N|Solid](https://opensource.org/licenses/MIT)

😉 Hey! I'm Radhakishan Jangid 😎. More about me Here ↩.

----------

My bad, that I don't have Mac or IPhone, so this library is tested only in android. Do check it in Mac and let me know if any problem occurs.

----------

📋 Table of Contents
--
- Install
- Supported Types
- Default Validation Rules
- Example
- How to use
- Props
- Methods
- Contributing
- License

`expo install react-native-reanimated react-native-gesture-handler react-lifecycles-compat`

If you are not using Expo, run the following:

`yarn add react-native-reanimated react-native-gesture-handler react-lifecycles-compat`

💡 How to use:- ----------

handlePassword = (event) => { const { user } = this.state; user.password = event.nativeEvent.text; this.setState({ user }); }

handleRepeatPassword = (event) => { const { user } = this.state; user.repeatPassword = event.nativeEvent.text; this.setState({ user }); }

handleChange = (email) => { this.setState({ email }); }


                                                            name="first_name"
                                label="First Name"
                                placeholder="textfield with floating label"
                                validateNames={['required', "isString", "maxStringLength:30"]}
                                errorMessages={["This field is required", "Only characters allowed", "Max character limit is 30"]}
                                value={this.state.first_name}
                                onChangeText={this.handleFirstName}
                                type="text"
                                leftIcon={}
                                invalidIcon={< Feather
                                    name="alert-circle"
                                    color="red"
                                    size={20}
                                />}
                                validIcon={}
                                labelStyle={styles.labelStyle}
                                style={[styles.inputStyle]}
                                containerStyle={styles.inputContainerStyle}
                                floatingTopValue={hp('1%')}
                                floatingFontSize={hp('0.5%')}
                            />
                                                            name="last_name"
                                placeholder="textfield without floating label"
                                validateNames={['required', "isString", "maxStringLength:30"]}
                                errorMessages={["This field is required", "Only characters allowed", "Max character limit is 30"]}
                                value={this.state.last_name}
                                onChangeText={this.handleLastName}
                                type="text"
                                leftIcon={}
                                invalidIcon={< Feather
                                    name="alert-circle"
                                    color="red"
                                    size={20}
                                />}
                                validIcon={}
                                labelStyle={styles.labelStyle}
                                style={[styles.inputStyle]}
                                containerStyle={styles.inputContainerStyle}
                                floatingTopValue={hp('1%')}
                                floatingFontSize={hp('0.5%')}
                            />
                                                            name="phone"
                                label="Mobile"
                                placeholder="textfield with only number"
                                validateNames={['required', "isNumber", "maxStringLength:10"]}
                                errorMessages={["This field is required", "Only numbers allowed", "Max string limit is 10"]}
                                value={this.state.number}
                                onChangeText={this.handleNumber}
                                type="text"
                                leftIcon={}
                                invalidIcon={< Feather
                                    name="alert-circle"
                                    color="red"
                                    size={20}
                                />}
                                validIcon={}
                                labelStyle={styles.labelStyle}
                                style={[styles.inputStyle]}
                                containerStyle={styles.inputContainerStyle}
                                floatingTopValue={hp('1%')}
                                floatingFontSize={hp('0.5%')}
                            />
                                                            name="email"
                                label="email"
                                validateNames={['required', 'validEmail']}
                                errorMessages={['This field is required', 'Enter valid email address']}
                                placeholder="textfield with email validation"
                                type="text"
                                keyboardType="email-address"
                                value={this.state.email}
                                onChangeText={this.handleChange}
                                leftIcon={}
                                invalidIcon={< Feather
                                    name="alert-circle"
                                    color="red"
                                    size={20}
                                />}
                                validIcon={}
                                labelStyle={styles.labelStyle}
                                style={[styles.inputStyle]}
                                containerStyle={styles.inputContainerStyle}
                                floatingTopValue={hp('1%')}
                                floatingFontSize={hp('0.5%')}
                            />
                                                            name="password"
                                label="Password"
                                secureTextEntry
                                passwordHideIcon={< Ionicons
                                    name="eye-off-outline"
                                    color={constants.white}
                                    size={20}
                                />}
                                passwordShowIcon={< Ionicons
                                    name="eye-outline"
                                    color={constants.white}
                                    size={20}
                                />}
                                validateNames={['isValidPassword', 'required']}
                                errorMessages={['Minimum eight characters, at least one uppercase letter, one lowercase letter and one number', 'This field is required']}
                                type="text"
                                value={user.password}
                                placeholder="custom password validation"
                                leftIcon={}
                                onChange={this.handlePassword}
                                labelStyle={styles.labelStyle}
                                style={[styles.inputStyle]}
                                containerStyle={styles.inputContainerStyle}
                                floatingTopValue={hp('1%')}
                                floatingFontSize={hp('0.5%')}
                            />
                                                            name="repeatPassword"
                                label="Confirm Password"
                                secureTextEntry
                                validateNames={['isPasswordMatch', 'required']}
                                errorMessages={['Password mismatch', 'This field is required']}
                                type="text"
                                value={user.repeatPassword}
                                placeholder="Confirm your password"
                                onChange={this.handleRepeatPassword}
                                invalidIcon={< Feather
                                    name="alert-circle"
                                    color="red"
                                    size={20}
                                />}
                                leftIcon={}
                                labelStyle={styles.labelStyle}
                                style={[styles.inputStyle]}
                                containerStyle={styles.inputContainerStyle}
                                floatingTopValue={hp('1%')}
                                floatingFontSize={hp('0.5%')}
                            />
                                                            activeOpacity={0.8}
                                onPress={this.handleSubmit}
                                style={styles.appButtonContainer}
                            >
                                Submit
                            
                        
                    
                
            
        );
    }
}
export default App;

| Prop | Required | Type | Default value | Description | |-----------------|----------|----------|---------------|------------------------------------------------------------------------------------------------------------------------------| | onSubmit | true | function | | Callback for form that fires when all validations are passed | | instantValidate | false | bool | true | If true, form will be validated after each field change. If false, form will be validated only after clicking submit button. | | onError | false | function | | Callback for form that fires when some of validations are not passed. It will return array of elements which not valid. | | debounceTime | false | number | 0 | Debounce time for validation i.e. your validation will run afterdebounceTime ms when you stop changing your input |

#### InputText Props

| Prop | Required | Type | Default value | Description | |-----------------|----------|----------|---------------|----------------------------------------------------------------------------------------| | name | true | string | | Name of input field | | label | false | string | | Name of input Floating Label | | placeholder | false | string | | Placeholder of input before any value | | validateNames | false | array | | Array of validation. See list of default validation rules in above example. | | errorMessages | false | array | | Array of error messages. Order of messages should be the same asvalidateNamesprop. | | errorStyle | false | object | { container: { top: 0, left: 0, position: 'absolute' }, text: { color: 'red' }, underlineValidColor: 'gray', underlineInvalidColor: 'red' } } | Add your own error styles | | validatorListener | false | function | | It triggers after each validation. It will returntrue or false| | withRequiredValidator | false | bool | | Allow to userequiredvalidator in any validation trigger, not only form submit | | leftIcon | false | code, image | | Either include image or add Icon tag code to display left icon see above example | | invalidIcon | false | code, image | | Either include image or add Icon tag code to display error icon on right side see above example | | validIcon | false | code, image | | Either include image or add Icon tag code to display success icon on right side see above example | | secureTextEntry | false | bool | false | If true than show hide icon will get added automatically |

🔗 Methods ---- #### Form Methods

💼 Contributing
----

This component covers all my needs, but feel free to contribute.