0
我正在嘗試使用redux-form
和react-native
。當我使用redux-form
作爲網絡應用程序時,我試圖做一些我所做的事情。我正在嘗試使用redux-form
驗證表單,但我立即看到驗證,而不是觸發onBlur
或重點更改。ReactNative:redux-form驗證輸入立即
這裏是我的代碼:
import React, { Component } from 'react';
import PropTypes from 'prop-types';
import { reduxForm, Field } from 'redux-form';
import {
View,
TextInput,
TouchableHighlight,
Text,
KeyboardAvoidingView,
StyleSheet,
} from 'react-native';
const renderTextInput = ({
input: { onChange, ...restInput }, // eslint-disable-line
placeholder, // eslint-disable-line
autoCapitalize, // eslint-disable-line
maxLength, // eslint-disable-line
isPassword, // eslint-disable-line
isEmail, // eslint-disable-line
meta: { touched, error, warning }, // eslint-disable-line
}) => (
<View style={{ width: '100%', paddingBottom: 15 }}>
<TextInput
onChangeText={onChange}
style={[styles.textInput, { width: '100%' }]}
placeholder={placeholder}
autoCapitalize={autoCapitalize}
maxLength={maxLength}
secureTextEntry={isPassword || false}
keyboardType={isEmail ? 'email-address' : 'default'}
{...restInput}
/>
{error && <Text style={{ color: 'red' }}>{error}</Text>}
</View>
);
class SignUp extends Component {
static propTypes = {
handleSubmit: PropTypes.func.isRequired,
}
onFormSubmit = (values) => {
alert(JSON.stringify(values));
}
render() {
const { handleSubmit } = this.props;
return (
<KeyboardAvoidingView
style={styles.container}
behavior="padding"
resetScrollToCoords={{ x: 0, y: 0 }}
scrollEnabled={false}
>
<Field
name="email"
placeholder="Email Address"
autoCapitalize="none"
isEmail
maxLength={50}
component={renderTextInput}
/>
<Field
name="password"
placeholder="Password"
maxLength={50}
isPassword
autoCapitalize="none"
component={renderTextInput}
/>
<TouchableHighlight
onPress={() => handleSubmit(this.onFormSubmit)}
underlayColor="transparent"
style={{ height: 40, width: '100%', backgroundColor: '#005abc' }}
>
<View style={{ flex: 1, alignItems: 'center', justifyContent: 'center' }}>
<Text style={{ color: 'white', fontSize: 18 }}>
Sign Up!
</Text>
</View>
</TouchableHighlight>
</KeyboardAvoidingView>
);
}
}
const styles = StyleSheet.create({
// styles
});
// Why is this triggering immediately as the screen loads ?
const validate = (values) => {
alert(JSON.stringify(values));
const errors = {};
if (!values.email) errors.firstName = 'Email is required...';
return errors;
};
export default reduxForm({
form: 'signUpForm',
validate,
})(SignUp);
套餐:
"react": "16.0.0-beta.5",
"react-native": "0.49.3",
"react-native-navigation": "^1.1.236",
"react-redux": "^5.0.5",
"redux": "^3.7.2",
"redux-form": "^7.1.1",
注:下圖中的警報是當應用程序被加載第一次,並在後臺可以看到驗證錯誤正在顯示。
任何幫助表示讚賞。謝謝。
難道你不應該有一個窗體,用onSubmit屬性來包裝所有的字段嗎? –
此外,我會檢查用新版本的Redux Form導出表單的新語法。在頁面的大約一半處,您可以看到正確導出方式的示例。不知道你的是否正確,但我知道它已經改變了以前的版本,並有時會弄虛作假。 https://redux-form.com/7.1.1/docs/gettingstarted.md/ –
@DanielZuzevich:感謝您的意見。我解決了它。我必須做的是在顯示錯誤的同時使用「被觸摸」屬性。這隻會在觸摸輸入時觸發錯誤。 ''{{touch && error && {error} }''' –