Events

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Events is a publish-subscribe style event system for sending and responding to application-level events across your app.

Usage

import { Events } from 'ionic-angular';

// first page (publish an event when a user is created)
constructor(public events: Events) {}
createUser(user) {
  console.log('User created!')
  this.events.publish('user:created', user, Date.now());
}


// second page (listen for the user created event after function is called)
constructor(public events: Events) {
  events.subscribe('user:created', (user, time) => {
    // user and time are the same arguments passed in `events.publish(user, time)`
    console.log('Welcome', user, 'at', time);
  });
}

Instance Members

publish(topic, eventData)

Publish an event to the given topic.

subscribe(topic, handler)

Subscribe to an event topic. Events that get posted to that topic will trigger the provided handler.

unsubscribe(topic, handler)

Unsubscribe from the given topic. Your handler will no longer receive events published to this topic.