Launch method when leave popover

Ionic Framework ionic-v3
1

hi everyone im newbie here can anyone help me i whant to launch a method when i leave popover
exmpl
in this page

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i have this buttom as popover
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Sans titre2.png960×736 22.6 KB
Sans%20titre3
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when i leave the popover i whant to launch a method call filter with variable can anyone helpp me and thnx :blush:

2

call your method on popover on dismiss read docs for more info and clarification

3

thnx for the reply
but the problem how i call the method and it in another page

4

i found the solution
i need to subscribe the event in first page like this
page 1:

import { Events } from 'ionic-angular';

constructor(public events: Events) {
events.subscribe('user:login', () => {
  this.loggedIn();
});
}

loggedIn() {
console.log("logged in");
}

page 2

import { Events } from 'ionic-angular';
constructor(public events: Events) {
}

logIn() {
events.publish('user:login');
}