Config

Ionic Config provides a way to change the properties of components globally across an app. It can set the app mode, tab button layout, animations, and more.

Global Config

To override the default Ionic configurations for your app, provide your own custom config to IonicModule.forRoot(...). The available config keys can be found in the IonicConfig interface.

For example, to disable ripple effects and default the mode to Material Design:

app.module.ts

import { IonicModule } from '@ionic/angular';

@NgModule({
  ...
  imports: [
    IonicModule.forRoot({
      rippleEffect: false,
      mode: 'md'
    })
  ],
  ...
})

Per-Component Config

Ionic Config is not reactive. Updating the config's value after the component has rendered will result in the previous value. It is recommended to use a component's properties instead of updating the config, when you require reactive values.

Not recommended

import { IonicModule } from '@ionic/angular';

@NgModule({
  ...
  imports: [
    IonicModule.forRoot({
      // Not recommended when your app requires reactive values
      backButtonText: 'Go Back'
    })
  ],
  ...
})

Recommended

<ion-back-button [text]="backButtonText"></ion-back-button>

@Component(...)
class MyComponent {
  backButtonText = this.config.get('backButtonText');

  constructor(private config: Config) { }

  localeChanged(locale: string) {
    if (locale === 'es_ES') {
      this.backButtonText = 'Devolver';
    }
  }

}

Per-Platform Config

Ionic Config can also be set on a per-platform basis. For example, this allows you to disable animations if the app is being run in a browser on a potentially slower device. Developers can take advantage of the Platform utilities to accomplish this.

Since the config is set at runtime, you will not have access to the Platform Dependency Injection. Instead, you can use the underlying functions that the provider uses directly.

In the following example, we are disabling all animations in our Ionic app only if the app is running in a mobile web browser. The isPlatform() call returns true or false based upon the platform that is passed in. See the Platform Documentation for a list of possible values.

import { isPlatform, IonicModule } from '@ionic/angular';

@NgModule({
  ...
  imports: [
    IonicModule.forRoot({
      animated: !isPlatform('mobileweb')
    })
  ],
  ...
})

Per-platform config with fallback for unmatched platforms:

import { isPlatform, IonicModule } from '@ionic/angular';

const getConfig = () => {
  if (isPlatform('hybrid')) {
    return {
      backButtonText: 'Previous',
      tabButtonLayout: 'label-hide'
    }
  }

  return {
    menuIcon: 'ellipsis-vertical'
  }
}
@NgModule({
  ...
  imports: [
    IonicModule.forRoot(getConfig())
  ],
  ...
})

Per-platform config overrides:

import { isPlatform, IonicModule } from '@ionic/angular';

const getConfig = () => {
  let config = {
    animated: false
  };

  if (isPlatform('iphone')) {
    config = {
      ...config,
      backButtonText: 'Previous'
    }
  }

  return config;
}
@NgModule({
  ...
  imports: [
    IonicModule.forRoot(getConfig())
  ],
  ...
})

Methods

get

Description	Returns a config value as an any. Returns null if the config is not defined.
Signature	get(key: string, fallback?: any) => any

Examples

import { Config } from '@ionic/angular';

@Component(...)
class AppComponent {
  constructor(config: Config) {
    const mode = config.get('mode');
  }
}

getBoolean

Description	Returns a config value as a boolean. Returns false if the config is not defined.
Signature	getBoolean(key: string, fallback?: boolean) => boolean

Examples

import { Config } from '@ionic/angular';

@Component(...)
class AppComponent {
  constructor(config: Config) {
    const swipeBackEnabled = config.getBoolean('swipeBackEnabled');
  }
}

getNumber

Description	Returns a config value as a number. Returns 0 if the config is not defined.
Signature	getNumber(key: string, fallback?: number) => number

Examples

import { Config } from '@ionic/angular';

@Component(...)
class AppComponent {
  constructor(config: Config) {
    const keyboardHeight = config.getNumber('keyboardHeight');
  }
}

Interfaces

IonicConfig

Below are the config options that Ionic uses.

Config	Type	Description
actionSheetEnter	AnimationBuilder	Provides a custom enter animation for all ion-action-sheet, overriding the default "animation".
actionSheetLeave	AnimationBuilder	Provides a custom leave animation for all ion-action-sheet, overriding the default "animation".
alertEnter	AnimationBuilder	Provides a custom enter animation for all ion-alert, overriding the default "animation".
alertLeave	AnimationBuilder	Provides a custom leave animation for all ion-alert, overriding the default "animation".
animated	boolean	If true, Ionic will enable all animations and transitions across the app.
backButtonDefaultHref	string	Overrides the default value for the defaultHref property in all <ion-back-button> components.
backButtonIcon	string	Overrides the default icon in all <ion-back-button> components.
backButtonText	string	Overrides the default text in all <ion-back-button> components.
hardwareBackButton	boolean	If true, Ionic will respond to the hardware back button in an Android device.
infiniteLoadingSpinner	SpinnerTypes	Overrides the default spinner type in all <ion-infinite-scroll-content> components.
loadingEnter	AnimationBuilder	Provides a custom enter animation for all ion-loading, overriding the default "animation".
loadingLeave	AnimationBuilder	Provides a custom leave animation for all ion-loading, overriding the default "animation".
loadingSpinner	SpinnerTypes	Overrides the default spinner for all ion-loading overlays.
menuIcon	string	Overrides the default icon in all <ion-menu-button> components.
menuType	string	Overrides the default menu type for all <ion-menu> components.
modalEnter	AnimationBuilder	Provides a custom enter animation for all ion-modal, overriding the default "animation".
modalLeave	AnimationBuilder	Provides a custom leave animation for all ion-modal, overriding the default "animation".
mode	Mode	The mode determines which platform styles to use for the whole application.
navAnimation	AnimationBuilder	Overrides the default "animation" of all ion-nav and ion-router-outlet across the whole application.
pickerEnter	AnimationBuilder	Provides a custom enter animation for all ion-picker, overriding the default "animation".
pickerLeave	AnimationBuilder	Provides a custom leave animation for all ion-picker, overriding the default "animation".
platform	PlatformConfig	Overrides the default platform detection methods.
popoverEnter	AnimationBuilder	Provides a custom enter animation for all ion-popover, overriding the default "animation".
popoverLeave	AnimationBuilder	Provides a custom leave animation for all ion-popover, overriding the default "animation".
refreshingIcon	string	Overrides the default icon in all <ion-refresh-content> components.
refreshingSpinner	SpinnerTypes	Overrides the default spinner type in all <ion-refresh-content> components.
sanitizerEnabled	boolean	If true, Ionic will enable a basic DOM sanitizer on component properties that accept custom HTML.
spinner	SpinnerTypes	Overrides the default spinner in all <ion-spinner> components.
statusTap	boolean	If true, clicking or tapping the status bar will cause the content to scroll to the top.
swipeBackEnabled	boolean	If true, Ionic will enable the "swipe-to-go-back" gesture across the application.
tabButtonLayout	TabButtonLayout	Overrides the default "layout" of all ion-bar-button across the whole application.
toastDuration	number	Overrides the default duration for all ion-toast components.
toastEnter	AnimationBuilder	Provides a custom enter animation for all ion-toast, overriding the default "animation".
toastLeave	AnimationBuilder	Provides a custom leave animation for all ion-toast, overriding the default "animation".
toggleOnOffLabels	boolean	Overrides the default enableOnOffLabels in all ion-toggle components.