ionic-framework/angular/src/ionic-module.ts

import { CommonModule } from '@angular/common';
import { APP_INITIALIZER, ModuleWithProviders, NgModule } from '@angular/core';
import { IonicConfig } from '@ionic/core';

import { appInitialize } from './app-initialize';
import * as c from './directives';
import * as d from './directives/proxies';
import * as p from './providers';
import { ConfigToken } from './providers/config';

const DECLARATIONS = [
  // proxies
  d.IonApp,
  d.IonAvatar,
  d.IonBackButton,
  d.IonBackdrop,
  d.IonBadge,
  d.IonButton,
  d.IonButtons,
  d.IonCard,
  d.IonCardContent,
  d.IonCardHeader,
  d.IonCardSubtitle,
  d.IonCardTitle,
  d.IonCheckbox,
  d.IonChip,
  d.IonCol,
  d.IonContent,
  d.IonDatetime,
  d.IonFab,
  d.IonFabButton,
  d.IonFabList,
  d.IonFooter,
  d.IonGrid,
  d.IonHeader,
  d.IonIcon,
  d.IonImg,
  d.IonInfiniteScroll,
  d.IonInfiniteScrollContent,
  d.IonInput,
  d.IonItem,
  d.IonItemDivider,
  d.IonItemGroup,
  d.IonItemOption,
  d.IonItemOptions,
  d.IonItemSliding,
  d.IonLabel,
  d.IonList,
  d.IonListHeader,
  d.IonMenu,
  d.IonMenuButton,
  d.IonMenuToggle,
  d.IonNav,
  d.IonNavPop,
  d.IonNavPush,
  d.IonNavSetRoot,
  d.IonNote,
  d.IonProgressBar,
  d.IonRadio,
  d.IonRadioGroup,
  d.IonRange,
  d.IonRefresher,
  d.IonRefresherContent,
  d.IonReorder,
  d.IonReorderGroup,
  d.IonRippleEffect,
  d.IonRow,
  d.IonSearchbar,
  d.IonSegment,
  d.IonSegmentButton,
  d.IonSelect,
  d.IonSelectOption,
  d.IonSelectPopover,
  d.IonSkeletonText,
  d.IonSlide,
  d.IonSlides,
  d.IonSpinner,
  d.IonSplitPane,
  d.IonTabBar,
  d.IonTabButton,
  d.IonText,
  d.IonTextarea,
  d.IonThumbnail,
  d.IonToggle,
  d.IonToolbar,
  d.IonTitle,

  c.IonTabs,

  // ngModel accessors
  c.BooleanValueAccessor,
  c.NumericValueAccessor,
  c.RadioValueAccessor,
  c.SelectValueAccessor,
  c.TextValueAccessor,

  // navigation
  c.IonRouterOutlet,
  c.IonBackButtonDelegate,
  c.NavDelegate,
  c.RouterLinkDelegate,

  // virtual scroll
  c.VirtualFooter,
  c.VirtualHeader,
  c.VirtualItem,
  c.IonVirtualScroll
];

const PROVIDERS = [
  p.ActionSheetController,
  p.AlertController,
  p.Config,
  p.LoadingController,
  p.PickerController,
  p.ToastController,
  p.MenuController,
  p.NavController,
  p.Platform,
  p.Events,
  p.DomController
];

@NgModule({
  declarations: DECLARATIONS,
  exports: DECLARATIONS,
  providers: [p.AngularDelegate, p.ModalController, p.PopoverController],
  imports: [CommonModule]
})
export class IonicModule {
  static forRoot(config?: IonicConfig): ModuleWithProviders {
    return {
      ngModule: IonicModule,
      providers: [
        {
          provide: ConfigToken,
          useValue: config
        },
        {
          provide: APP_INITIALIZER,
          useFactory: appInitialize,
          multi: true,
          deps: [
            ConfigToken
          ]
        },
        ...PROVIDERS
      ]
    };
  }
}