我是一个相当新的Ionic React和试图创建一个App使用Ionic框架。我有一个用例,我想在一个按钮按下后重定向到另一个页面,并从一个函数验证。
以下是我正在使用的组件
import React, { useState } from 'react';
import {
IonContent,
IonHeader,
IonPage,
IonTitle,
IonToolbar,
IonInput,
IonButton,
IonRow,
IonCol,
useIonViewWillEnter,
useIonViewWillLeave,
IonLabel
} from '@ionic/react';
import './LogIn.css'
import MainMenu from "../MainMenu";
const LogIn: React.FC<{register?: boolean; onClose?: any}> = () => {
const [email, setEmail] = useState<string>();
const [password, setPassword] = useState<string>();
function handleLoginButtonPress() {
if (validateEmail() && password !== undefined && password.trim() !== "") {
// Network call here to check if a valid user
console.log("valid email")
return <MainMenu/>
}
}
function validateEmail () {
if (email !== undefined && email.trim() !== "") {
const regexp = /^(([^<>()[\]\\.,;:\s@"]+(\.[^<>()[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/;
return regexp.test(email);
}
return false;
}
useIonViewWillEnter(() => {
console.log("Entering LogIn");
});
useIonViewWillLeave(() => {
console.log("Exiting LogIn");
});
return (
<IonPage id="loginIonPage">
<IonHeader>
<IonToolbar color="primary" mode="md">
<IonTitle class="ion-text-center">Login or Register</IonTitle>
</IonToolbar>
</IonHeader>
<IonContent id="loginPage">
<div id="loginDialog">
<form>
<IonLabel>Email</IonLabel>
<IonRow>
<IonCol id="userName">
<IonInput
name="email"
value={email}
onIonChange={e => setEmail(e.detail.value!)}
clearInput
type="email"
placeholder="Email"
class="input"
padding-horizontal
clear-input="true"
required/>
</IonCol>
</IonRow>
<IonLabel>Password</IonLabel>
<IonRow>
<IonCol id="password">
<IonInput
clearInput
name="password"
value={password}
onIonChange={e => setPassword(e.detail.value!)}
type="password"
placeholder="Password"
class="input"
padding-horizontal
clear-input="true"
required/>
</IonCol>
</IonRow>
</form>
</div>
<div id="buttons">
<IonButton
onClick={handleLoginButtonPress}
type="submit"
strong={true}
expand="full"
style={{ margin: 20 }}>
Log in
</IonButton>
<IonButton
routerLink="/registerUser"
type="submit"
strong={true}
expand="full"
style={{ margin: 20 }}>
Register
</IonButton>
</div>
</IonContent>
</IonPage>
);
};
export default LogIn;
如何从功能中重定向到另一个页面?handleLoginButtonPress
在点击登录按钮时调用。我试过 通读离子文档 但这并没有帮助,因为每当有按钮点击或点击IonLabel等IonElement时,它就会重定向。
用例 反应路由器域名 钩子https:/reacttraining.comreact-routerwebapiHooksusehistory。
import { useHistory } from "react-router-dom";
const ExampleComponent: React.FC = () => {
const history = useHistory();
const handleLoginButtonPress = () => {
history.push("/main");
};
return <IonButton onClick={handleLoginButtonPress}>Log in</IonButton>;
};
export default ExampleComponent;
谢谢,@MUHAMMAD ILYAS,它将为我工作。但我设法利用反应状态如下,我已经添加作为一个答案,因为我不能格式化的代码有。
const ValidateUser : React.FC = () => {
const [login, setLogin] = useState(false);
function isUserLoggedIn() {
return login;
}
return(
<IonReactRouter>
<IonRouterOutlet>
<Route path="/" render={() => isUserLoggedIn()
? <MainMenu/>
: <LogIn setUserLoggedIn={() => {setLogin(true)}}/>} exact={true}/>
</IonRouterOutlet>
</IonReactRouter>
);
};
const LogIn: React.FC<{setUserLoggedIn?: any}> = ({setUserLoggedIn}) => {
.
.
function onLoginButtonPress() {
setUserLoggedIn();
}
}
谢谢你