离子传递存储值到订阅方法

import { Events } from 'ionic-angular';

@Component({
  selector: 'publish-component',
  template: `
    <button (click)="publishEvent()">发布事件</button>
  `
})
export class PublishComponent {
  constructor(private events: Events) {}

  publishEvent() {
    let data = '传递的数据';
    this.events.publish('custom-event', data);
  }
}

import { Events } from 'ionic-angular';

@Component({
  selector: 'subscribe-component',
  template: `
    <div>{{ receivedData }}</div>
  `
})
export class SubscribeComponent {
  receivedData: any;

  constructor(private events: Events) {
    this.events.subscribe('custom-event', (data) => {
      this.receivedData = data;
    });
  }
}