如何整合 react-intl-tel-input
How to integrate react-intl-tel-input
你好,我是 ReactJS 的新手,我必须实施 react-intl-tel-input
以获取来自世界各地的 phone 号码,但在集成时我遇到了一些问题。当我写这段代码时:
<IntlTelInput
containerClassName="intl-tel-input"
inputClassName="form-control"
name="mobile"
placeholder="Enter Your Number"
input
type="tel"
value={this.state.phoneNumber}
onChange={this.handleChange}
我无法访问 this.handleChange
但是当我像这样编写我的正常代码时
<input
type="tel"
id="phone"
name="mobile"
placeholder="Enter Your Number"
required
onChange={this.handleChange}
/>
我能够访问 this.handleChange
并且我的代码可以正常工作,但我无法获取国家/地区代码。如果有人知道解决方案,请提供帮助。我遇到了这个错误
TypeError: Cannot read properties of null (reading 'phoneNumber')
这是我的完整代码。
Login.js
import React from 'react'
import firebase from './firebase'
import 'firebase/auth';
import "./App.css";
import { getDatabase, ref, child, get } from "firebase/database";
import IntlTelInput from 'react-intl-tel-input';
import 'react-intl-tel-input/dist/main.css';
class Login extends React.Component {
handleChange = (e) => {
console.log (e)
const { name, value } = e.target
this.setState({
[name]: value
})
console.log (value)
this.setState({ phoneNumber: value }, () => {
console.log(this.state.phoneNumber);
});
}
configureCaptcha = () =>{
window.recaptchaVerifier = new firebase.auth.RecaptchaVerifier('sign-in-button', {
'size': 'invisible',
'callback': (response) => {
// reCAPTCHA solved, allow signInWithPhoneNumber.
this.onSignInSubmit();
console.log("Recaptca varified")
},
// defaultCountry: "IN"
}
);
}
onSignInSubmit = (e) => {
e.preventDefault()
this.configureCaptcha()
const phoneNumber = this.state.mobile
console.log(phoneNumber)
const appVerifier = window.recaptchaVerifier;
const dbRef = ref(getDatabase());
get(child(dbRef, `Users/${phoneNumber}`)).then((snapshot) => {
if (snapshot.exists()) {
firebase.auth().signInWithPhoneNumber(phoneNumber, appVerifier)
.then((confirmationResult) => {
window.confirmationResult = confirmationResult;
alert('An OTP has been sent to your registered mobile number')
localStorage.setItem("Phone_No", phoneNumber)
console.log(localStorage.getItem('Phone_No'));
}).catch((error) => {
console.error(error);
alert("Oops! Some error occured. Please try again.")
});
}
else {
alert('Sorry, this mobile number is not registered with us. Please use your registered mobile number.');
}
})
}
onSubmitOTP = (e) => {
e.preventDefault()
const code = this.state.otp
console.log(code)
window.confirmationResult.confirm(code).then((result) => {
// User signed in successfully.
const Users = result.user;
console.log(JSON.stringify(Users))
this.props.history.push("/home");
}).catch((error) => {
alert("You have entered wrong code")
});
}
render() {
return (
<div className="Main-header">
<img src="./55k-logo.png" alt="Company Logo" style={{ height: "80px", width: "200px" }} />
<br />
<div>
<h2>Login Form</h2>
<p>Limtless Water. From Unlimited Air.</p>
<form onSubmit={this.onSignInSubmit}>
<div id="sign-in-button"></div>
{/* <PhoneInput */}
<label>Mobile Number</label> <br />
{/* for="phoneNumber" */}
<IntlTelInput
containerClassName="intl-tel-input"
inputClassName="form-control"
name="mobile" placeholder="Enter Your Number"
input type="tel" value={this.state.phoneNumber}
onChange={this.handleChange}
/>
{/* <input type="tel" id="phone" name="mobile" placeholder="Enter Your Number" required onChange={this.handleChange} /> */}
<div className="buttons">
<button type="submit">Submit</button>
</div>
</form>
</div>
<div>
<form onSubmit={this.onSubmitOTP}>
<label >Code</label> <br />
{/* for="code" */}
<input type="number" name="otp" placeholder="Enter The 6 Digit OTP" required onChange={this.handleChange} />
<div className="buttons" >
<button type="submit">Submit</button>
</div>
</form>
</div>
</div>
)
}
}
export default Login;
问题
- 没有定义 初始 状态,所以这就是访问
this.state.phoneNumber
引发错误的原因。
IntlTelInput
组件采用 onPhoneNumberChange
处理程序,该处理程序将验证状态、当前值和国家/地区详细信息作为参数,而不是 onChange
处理程序采用 onChange
事件对象。
解决方案
为组件提供有效的初始状态。在 React class 组件中 state
只是一个 class 属性,它只需要被定义。
state = {};
专门为 IntlTelInput
组件创建一个新的更改处理程序。
handlePhoneChange = (status, phoneNumber, country) => {
this.setState({ phoneNumber });
};
从 onChange
切换到 onPhoneNumberChange
事件处理程序。
<IntlTelInput
containerClassName="intl-tel-input"
inputClassName="form-control"
name="mobile"
placeholder="Enter Your Number"
input
type="tel"
value={this.state.phoneNumber}
onPhoneNumberChange={this.handlePhoneChange}
/>
你好,我是 ReactJS 的新手,我必须实施 react-intl-tel-input
以获取来自世界各地的 phone 号码,但在集成时我遇到了一些问题。当我写这段代码时:
<IntlTelInput
containerClassName="intl-tel-input"
inputClassName="form-control"
name="mobile"
placeholder="Enter Your Number"
input
type="tel"
value={this.state.phoneNumber}
onChange={this.handleChange}
我无法访问 this.handleChange
但是当我像这样编写我的正常代码时
<input
type="tel"
id="phone"
name="mobile"
placeholder="Enter Your Number"
required
onChange={this.handleChange}
/>
我能够访问 this.handleChange
并且我的代码可以正常工作,但我无法获取国家/地区代码。如果有人知道解决方案,请提供帮助。我遇到了这个错误
TypeError: Cannot read properties of null (reading 'phoneNumber')
这是我的完整代码。
Login.js
import React from 'react'
import firebase from './firebase'
import 'firebase/auth';
import "./App.css";
import { getDatabase, ref, child, get } from "firebase/database";
import IntlTelInput from 'react-intl-tel-input';
import 'react-intl-tel-input/dist/main.css';
class Login extends React.Component {
handleChange = (e) => {
console.log (e)
const { name, value } = e.target
this.setState({
[name]: value
})
console.log (value)
this.setState({ phoneNumber: value }, () => {
console.log(this.state.phoneNumber);
});
}
configureCaptcha = () =>{
window.recaptchaVerifier = new firebase.auth.RecaptchaVerifier('sign-in-button', {
'size': 'invisible',
'callback': (response) => {
// reCAPTCHA solved, allow signInWithPhoneNumber.
this.onSignInSubmit();
console.log("Recaptca varified")
},
// defaultCountry: "IN"
}
);
}
onSignInSubmit = (e) => {
e.preventDefault()
this.configureCaptcha()
const phoneNumber = this.state.mobile
console.log(phoneNumber)
const appVerifier = window.recaptchaVerifier;
const dbRef = ref(getDatabase());
get(child(dbRef, `Users/${phoneNumber}`)).then((snapshot) => {
if (snapshot.exists()) {
firebase.auth().signInWithPhoneNumber(phoneNumber, appVerifier)
.then((confirmationResult) => {
window.confirmationResult = confirmationResult;
alert('An OTP has been sent to your registered mobile number')
localStorage.setItem("Phone_No", phoneNumber)
console.log(localStorage.getItem('Phone_No'));
}).catch((error) => {
console.error(error);
alert("Oops! Some error occured. Please try again.")
});
}
else {
alert('Sorry, this mobile number is not registered with us. Please use your registered mobile number.');
}
})
}
onSubmitOTP = (e) => {
e.preventDefault()
const code = this.state.otp
console.log(code)
window.confirmationResult.confirm(code).then((result) => {
// User signed in successfully.
const Users = result.user;
console.log(JSON.stringify(Users))
this.props.history.push("/home");
}).catch((error) => {
alert("You have entered wrong code")
});
}
render() {
return (
<div className="Main-header">
<img src="./55k-logo.png" alt="Company Logo" style={{ height: "80px", width: "200px" }} />
<br />
<div>
<h2>Login Form</h2>
<p>Limtless Water. From Unlimited Air.</p>
<form onSubmit={this.onSignInSubmit}>
<div id="sign-in-button"></div>
{/* <PhoneInput */}
<label>Mobile Number</label> <br />
{/* for="phoneNumber" */}
<IntlTelInput
containerClassName="intl-tel-input"
inputClassName="form-control"
name="mobile" placeholder="Enter Your Number"
input type="tel" value={this.state.phoneNumber}
onChange={this.handleChange}
/>
{/* <input type="tel" id="phone" name="mobile" placeholder="Enter Your Number" required onChange={this.handleChange} /> */}
<div className="buttons">
<button type="submit">Submit</button>
</div>
</form>
</div>
<div>
<form onSubmit={this.onSubmitOTP}>
<label >Code</label> <br />
{/* for="code" */}
<input type="number" name="otp" placeholder="Enter The 6 Digit OTP" required onChange={this.handleChange} />
<div className="buttons" >
<button type="submit">Submit</button>
</div>
</form>
</div>
</div>
)
}
}
export default Login;
问题
- 没有定义 初始 状态,所以这就是访问
this.state.phoneNumber
引发错误的原因。 IntlTelInput
组件采用onPhoneNumberChange
处理程序,该处理程序将验证状态、当前值和国家/地区详细信息作为参数,而不是onChange
处理程序采用onChange
事件对象。
解决方案
为组件提供有效的初始状态。在 React class 组件中 state
只是一个 class 属性,它只需要被定义。
state = {};
专门为 IntlTelInput
组件创建一个新的更改处理程序。
handlePhoneChange = (status, phoneNumber, country) => {
this.setState({ phoneNumber });
};
从 onChange
切换到 onPhoneNumberChange
事件处理程序。
<IntlTelInput
containerClassName="intl-tel-input"
inputClassName="form-control"
name="mobile"
placeholder="Enter Your Number"
input
type="tel"
value={this.state.phoneNumber}
onPhoneNumberChange={this.handlePhoneChange}
/>