ion-toast

A Toast is a subtle notification commonly used in modern applications. It can be used to provide feedback about an operation or to display a system message. The toast appears on top of the app's content, and can be dismissed by the app to resume user interaction with the app.

Positioning

Toasts can be positioned at the top, bottom or middle of the viewport. The position can be passed upon creation. The possible values are top, bottom and middle. If the position is not specified, the toast will be displayed at the bottom of the viewport.

Dismissing

The toast can be dismissed automatically after a specific amount of time by passing the number of milliseconds to display it in the duration of the toast options. If a button with a role of "cancel" is added, then that button will dismiss the toast. To dismiss the toast after creation, call the dismiss() method on the instance.

Interfaces

ToastButton

interface ToastButton {
  text?: string;
  icon?: string;
  side?: 'start' | 'end';
  role?: 'cancel' | string;
  cssClass?: string | string[];
  handler?: () => boolean | void | Promise<boolean | void>;
}

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ToastOptions

interface ToastOptions {
  header?: string;
  message?: string | IonicSafeString;
  cssClass?: string | string[];
  duration?: number;
  buttons?: (ToastButton | string)[];
  position?: 'top' | 'bottom' | 'middle';
  translucent?: boolean;
  animated?: boolean;

  color?: Color;
  mode?: Mode;
  keyboardClose?: boolean;
  id?: string;

  enterAnimation?: AnimationBuilder;
  leaveAnimation?: AnimationBuilder;
}

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Usage

import { Component } from '@angular/core';
import { ToastController } from '@ionic/angular';

@Component({
  selector: 'toast-example',
  templateUrl: 'toast-example.html',
  styleUrls: ['./toast-example.css'],
})
export class ToastExample {

  constructor(public toastController: ToastController) {}

  async presentToast() {
    const toast = await this.toastController.create({
      message: 'Your settings have been saved.',
      duration: 2000
    });
    toast.present();
  }

  async presentToastWithOptions() {
    const toast = await this.toastController.create({
      header: 'Toast header',
      message: 'Click to Close',
      position: 'top',
      buttons: [
        {
          side: 'start',
          icon: 'star',
          text: 'Favorite',
          handler: () => {
            console.log('Favorite clicked');
          }
        }, {
          text: 'Done',
          role: 'cancel',
          handler: () => {
            console.log('Cancel clicked');
          }
        }
      ]
    });
    await toast.present();

    const { role } = await toast.onDidDismiss();
    console.log('onDidDismiss resolved with role', role);
  }

}

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async function presentToast() {
  const toast = document.createElement('ion-toast');
  toast.message = 'Your settings have been saved.';
  toast.duration = 2000;

  document.body.appendChild(toast);
  return toast.present();
}

async function presentToastWithOptions() {
  const toast = document.createElement('ion-toast');
  toast.header = 'Toast header';
  toast.message = 'Click to Close';
  toast.position = 'top';
  toast.buttons = [
    {
      side: 'start',
      icon: 'star',
      text: 'Favorite',
      handler: () => {
        console.log('Favorite clicked');
      }
    }, {
      text: 'Done',
      role: 'cancel',
      handler: () => {
        console.log('Cancel clicked');
      }
    }
  ];

  document.body.appendChild(toast);
  await toast.present();

  const { role } = await toast.onDidDismiss();
  console.log('onDidDismiss resolved with role', role);
}

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/* Using the useIonToast Hook */

import React from 'react';
import { IonButton, IonContent, IonPage, useIonToast } from '@ionic/react';

const ToastExample: React.FC = () => {
  const [present, dismiss] = useIonToast();

  return (
    <IonPage>
      <IonContent>
        <IonButton
          expand="block"
          onClick={() =>
            present({
              buttons: [{ text: 'hide', handler: () => dismiss() }],
              message: 'toast from hook, click hide to dismiss',
              onDidDismiss: () => console.log('dismissed'),
              onWillDismiss: () => console.log('will dismiss'),
            })
          }
        >
          Show Toast
        </IonButton>
        <IonButton
          expand="block"
          onClick={() => present('hello from hook', 3000)}
        >
          Show Toast using params, closes in 3 secs
        </IonButton>
        <IonButton expand="block" onClick={dismiss}>
          Hide Toast
        </IonButton>
      </IonContent>
    </IonPage>
  );
};

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/* Using the IonToast Component */

import React, { useState } from 'react';
import { IonToast, IonContent, IonButton } from '@ionic/react';

export const ToastExample: React.FC = () => {
  const [showToast1, setShowToast1] = useState(false);
  const [showToast2, setShowToast2] = useState(false);

  return (
    <IonContent>
      <IonButton onClick={() => setShowToast1(true)} expand="block">Show Toast 1</IonButton>
      <IonButton onClick={() => setShowToast2(true)} expand="block">Show Toast 2</IonButton>
      <IonToast
        isOpen={showToast1}
        onDidDismiss={() => setShowToast1(false)}
        message="Your settings have been saved."
        duration={200}
      />

      <IonToast
        isOpen={showToast2}
        onDidDismiss={() => setShowToast2(false)}
        message="Click to Close"
        position="top"
        buttons={[
          {
            side: 'start',
            icon: 'star',
            text: 'Favorite',
            handler: () => {
              console.log('Favorite clicked');
            }
          },
          {
            text: 'Done',
            role: 'cancel',
            handler: () => {
              console.log('Cancel clicked');
            }
          }
        ]}
      />
    </IonContent>
  );
};

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import { Component, h } from '@stencil/core';

import { toastController } from '@ionic/core';

@Component({
  tag: 'toast-example',
  styleUrl: 'toast-example.css'
})
export class ToastExample {
  async presentToast() {
    const toast = await toastController.create({
      message: 'Your settings have been saved.',
      duration: 2000
    });
    toast.present();
  }

  async presentToastWithOptions() {
    const toast = await toastController.create({
      header: 'Toast header',
      message: 'Click to Close',
      position: 'top',
      buttons: [
        {
          side: 'start',
          icon: 'star',
          text: 'Favorite',
          handler: () => {
            console.log('Favorite clicked');
          }
        }, {
          text: 'Done',
          role: 'cancel',
          handler: () => {
            console.log('Cancel clicked');
          }
        }
      ]
    });
    await toast.present();

    const { role } = await toast.onDidDismiss();
    console.log('onDidDismiss resolved with role', role);
  }

  render() {
    return [
      <ion-content>
        <ion-button onClick={() => this.presentToast()}>Present Toast</ion-button>
        <ion-button onClick={() => this.presentToastWithOptions()}>Present Toast: Options</ion-button>
      </ion-content>
    ];
  }
}

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<template>
  <ion-page>
    <ion-content class="ion-padding">
      <ion-button @click="openToast">Open Toast</ion-button>
      <ion-button @click="openToastOptions">Open Toast: Options</ion-button>
    </ion-content>
  </ion-page>
</template>

<script>
import { IonButton, IonContent, IonPage, toastController } from '@ionic/vue';

export default {
  components: { IonButton, IonContent, IonPage },
  methods: {
    async openToast() {
      const toast = await toastController
        .create({
          message: 'Your settings have been saved.',
          duration: 2000
        })
      return toast.present();
    },
    async openToastOptions() {
      const toast = await toastController
        .create({
          header: 'Toast header',
          message: 'Click to Close',
          position: 'top',
          buttons: [
            {
              side: 'start',
              icon: 'star',
              text: 'Favorite',
              handler: () => {
                console.log('Favorite clicked');
              }
            }, {
              text: 'Done',
              role: 'cancel',
              handler: () => {
                console.log('Cancel clicked');
              }
            }
          ]
        })
      await toast.present();

      const { role } = await toast.onDidDismiss();
      console.log('onDidDismiss resolved with role', role);
    },
  },
}
</script>

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Developers can also use this component directly in their template:

<template>
  <ion-button @click="setOpen(true)">Show Toast</ion-button>
  <ion-toast
    :is-open="isOpenRef"
    message="Your settings have been saved."
    :duration="2000"
    @didDismiss="setOpen(false)"
  >
  </ion-toast>
</template>

<script>
import { IonToast, IonButton } from '@ionic/vue';
import { defineComponent, ref } from 'vue';

export default defineComponent({
  components: { IonToast, IonButton },
  setup() {
    const isOpenRef = ref(false);
    const setOpen = (state: boolean) => isOpenRef.value = state;

    return { isOpenRef, setOpen }
  }
});
</script>

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Properties

animated
Description	If `true`, the toast will animate.
Attribute	`animated`
Type	`boolean`
Default	`true`
buttons
Description	An array of buttons for the toast.
Type	`(string \| ToastButton)[] \| undefined`
color
Description	The color to use from your application's color palette. Default options are: `"primary"`, `"secondary"`, `"tertiary"`, `"success"`, `"warning"`, `"danger"`, `"light"`, `"medium"`, and `"dark"`. For more information on colors, see theming.
Attribute	`color`
Type	`string \| undefined`
cssClass
Description	Additional classes to apply for custom CSS. If multiple classes are provided they should be separated by spaces.
Attribute	`css-class`
Type	`string \| string[] \| undefined`
duration
Description	How many milliseconds to wait before hiding the toast. By default, it will show until `dismiss()` is called.
Attribute	`duration`
Type	`number`
Default	`0`
enterAnimation
Description	Animation to use when the toast is presented.
Type	`((baseEl: any, opts?: any) => Animation) \| undefined`
header
Description	Header to be shown in the toast.
Attribute	`header`
Type	`string \| undefined`
keyboardClose
Description	If `true`, the keyboard will be automatically dismissed when the overlay is presented.
Attribute	`keyboard-close`
Type	`boolean`
Default	`false`
leaveAnimation
Description	Animation to use when the toast is dismissed.
Type	`((baseEl: any, opts?: any) => Animation) \| undefined`
message
Description	Message to be shown in the toast.
Attribute	`message`
Type	`IonicSafeString \| string \| undefined`
mode
Description	The mode determines which platform styles to use.
Attribute	`mode`
Type	`"ios" \| "md"`
position
Description	The position of the toast on the screen.
Attribute	`position`
Type	`"bottom" \| "middle" \| "top"`
Default	`'bottom'`
translucent
Description	If `true`, the toast will be translucent. Only applies when the mode is `"ios"` and the device supports `backdrop-filter`.
Attribute	`translucent`
Type	`boolean`
Default	`false`

Events

Name	Description
`ionToastDidDismiss`	Emitted after the toast has dismissed.
`ionToastDidPresent`	Emitted after the toast has presented.
`ionToastWillDismiss`	Emitted before the toast has dismissed.
`ionToastWillPresent`	Emitted before the toast has presented.

Methods

dismiss
Description	Dismiss the toast overlay after it has been presented.
Signature	`dismiss(data?: any, role?: string \| undefined) => Promise<boolean>`
onDidDismiss
Description	Returns a promise that resolves when the toast did dismiss.
Signature	`onDidDismiss<T = any>() => Promise<OverlayEventDetail<T>>`
onWillDismiss
Description	Returns a promise that resolves when the toast will dismiss.
Signature	`onWillDismiss<T = any>() => Promise<OverlayEventDetail<T>>`
present
Description	Present the toast overlay after it has been created.
Signature	`present() => Promise<void>`

CSS Shadow Parts

Name	Description
`button`	Any button element that is displayed inside of the toast.
`container`	The element that wraps all child elements.
`header`	The header text of the toast.
`message`	The body text of the toast.

CSS Custom Properties

Name	Description
`--background`	Background of the toast
`--border-color`	Border color of the toast
`--border-radius`	Border radius of the toast
`--border-style`	Border style of the toast
`--border-width`	Border width of the toast
`--box-shadow`	Box shadow of the toast
`--button-color`	Color of the button text
`--color`	Color of the toast text
`--end`	Position from the right if direction is left-to-right, and from the left if direction is right-to-left
`--height`	Height of the toast
`--max-height`	Maximum height of the toast
`--max-width`	Maximum width of the toast
`--min-height`	Minimum height of the toast
`--min-width`	Minimum width of the toast
`--start`	Position from the left if direction is left-to-right, and from the right if direction is right-to-left
`--white-space`	White space of the toast message
`--width`	Width of the toast