相关疑难解决方法(0)

我在reactjs-flux编写一个简单的应用程序,一切正常,除了我收到来自reactjs的警告,告诉我我在未安装的组件上调用setState.

我已经弄明白这是因为没有从商店中删除组件被挂钩的changelisteners componentWillUnmount.我知道这一点,因为当我打开监听器列表时,Eventemitter我会看到应该被销毁的监听器,并且当我多次挂载/卸载相同的组件时,列表会变大.

我从我的BaseStore粘贴代码:

import Constants from '../core/Constants';
import {EventEmitter} from 'events';

class BaseStore extends EventEmitter {
  // Allow Controller-View to register itself with store
  addChangeListener(callback) {
    this.on(Constants.CHANGE_EVENT, callback);
  }

  removeChangeListener(callback) {
    this.removeListener(Constants.CHANGE_EVENT, callback);
  }

  // triggers change listener above, firing controller-view callback
  emitChange() {
    this.emit(Constants.CHANGE_EVENT);
  }
}

export default BaseStore;

我从遇到此错误的组件中粘贴相关代码(但它适用于所有组件):

@AuthenticatedComponent
class ProductsPage extends React.Component {
  static propTypes = {
    accessToken: PropTypes.string
  };

  constructor() {
    super();
    this._productBatch;
    this._productBatchesNum;
    this._activeProductBatch;
    this._productBlacklist;
    this._searchById;
    this._searchingById;
    this.state = this._getStateFromStore(); …