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我Store.js時:MobX不更新陣營視圖推到一個數組
import { observable, useStrict, action } from 'mobx';
useStrict(true);
export const state = observable({
contacts: []
});
export const actions = {
addContact: action((firstName, lastName) => {
state.contacts.push({
id: Math.floor((Math.random() * 1000) + 1),
firstName: firstName,
lastName: lastName
});
})
};
我index.js:
import React from 'react';
import { Provider } from 'mobx-react';
import ReactDOM from 'react-dom';
import './index.css';
import App from './App';
import registerServiceWorker from './registerServiceWorker';
import { state, actions } from './Store';
ReactDOM.render(
<Provider state={state} actions={actions}>
<App />
</Provider>,
document.getElementById('root')
);
registerServiceWorker();
我App.js:
import React, { Component } from 'react';
import ContactList from './components/ContactList';
import ContactAdder from './components/ContactAdder';
import { observer, inject } from 'mobx-react';
const App = inject('state', 'actions')(observer(class App extends Component {
render() {
return (
<div>
<h1>Contacts</h1>
<ContactList
contacts={this.props.state.contacts}
onDelete={this.props.actions.removeContact}
/>
<ContactAdder onAdd={this.props.actions.addContact} />
</div>
);
}
}));
export default App;
而最後我的ContactAdder.js:
import React, { Component } from 'react';
class ContactAdder extends Component {
render() {
return (
<div className='ContactAdder'>
<input type='text' value='' placeholder='First Name' />
<input type='text' value='' placeholder='Last Name' />
<button onClick={this.props.onAdd.bind(this, 'Test', 'Testerson')}>Add</button>
</div>
);
}
}
export default ContactAdder;
addContact()
在Store.js
後運行我可以看到,當我做控制檯日誌時,數組確實發生了變異。但由於某種原因,我的觀點並沒有反應。我究竟做錯了什麼?
我沒有看到任何地方你實際上正在更新呈現組件的狀態。 – Cruiser
@Cruiser我的印象是MobX爲你做的。如果您的「可觀察」值發生變化,則任何屬於「觀察者」的類都將重新渲染。還是我完全錯了? – Tiwaz89
我認爲MobX文檔可能有所幫助:https://mobx.js.org/best/react.html我認爲你正在改變跟蹤功能之外的值,這是行不通的。看看這個標題的頁面部分:不正確:改變一個不可觀察的參考 – Cruiser