Refresh a page in ionic2

Question

Is there a way to refresh only a page i.e. only one screen in ionic2.

I tried :

window.location.reload();

and

loca         


        

Answer 1

If you are willing to follow a common convention, I have found a very easy way to reload the current view (including all of its parameters). I tested this using Ionic3, but it should still apply in Ionic 2

Move all of your initialization code for every page into ionViewDidLoad(), which is run ONCE on the first time the view is loaded

import { Component } from '@angular/core';
import { NavController, NavParams } from 'ionic-angular';
import { Api } from '../../providers/api';
import { Movie } from '../../interfaces/movie';

@Component({
    selector: 'page-movie-info',
    templateUrl: 'movie-info.html'
})
export class MovieInfoPage {

    constructor(
        public navCtrl: NavController,
        public navParams: NavParams,
        public api: Api
    ) {
    }

    /**
     * Run all page initialization in this method so that this page
     * can be refreshed simply by re-calling this function
     */
    ionViewDidLoad() {
        //access any parameters provided to the page through navParams. 
        var movieId = this.navParams.data.movieId;
        this.api.movies.getById(movieId).then((movie) => {
            this.movie = movie;
        });
    }
    public movie: Movie;
}

From anywhere else in the app, you can reload the current view with this code

//get the currently active page component
var component = this.navController.getActive().instance;
//re-run the view load function if the page has one declared
if (component.ionViewDidLoad) {
    component.ionViewDidLoad();
}