HOSN-app/app/src/pages/home/home.ts

import { Component } from '@angular/core';
import { IonicPage, NavController, MenuController, InfiniteScroll } from 'ionic-angular';
import { TwitterApiProvider } from '../../providers/twitter-api/twitter-api';
import { WriteTweetPage } from '../write-tweet/write-tweet';

@IonicPage()
@Component({
  selector: 'page-home',
  templateUrl: 'home.html'
})
export class HomePage {
  menuController: MenuController;
  data: any[] = [];

  constructor(
    public navCtrl: NavController,
    private twitter: TwitterApiProvider,
    private menuCtrl: MenuController) {
  }

  ionViewDidLoad() {
    this.menuCtrl.enable(true, 'sideNav');

  }

  ionViewDidEnter() {
    this.twitter.fetchHomeFeed()
      .then(res => {
        this.data = res.data;
      });
  }

  doRefresh(refresher) {
    this.twitter.fetchHomeFeed()
      .then(res => {
        this.data = res.data;
        refresher.complete();
      })
  }

  loadMore(infiniteScroll: InfiniteScroll) {
    this.twitter.fetchHomeFeedSince(this.data[this.data.length - 1].id)
      .then(res => {
        this.data = this.data.concat(res.data);
        infiniteScroll.complete();
      })
  }

  writeTweet() {
    this.navCtrl.push(WriteTweetPage);
  }
}