ons-toast

The Toast or Snackbar component is useful for displaying dismissable information or simple actions at (normally) the bottom of the page. This component does not block user input, allowing the app to continue its flow. For simple toasts, consider ons.notification.toast instead.

Tutorial

Dialogs

Dialogs are defined using the <ons-dialog>, <ons-alert-dialog> and <ons-toast> tags.

<ons-dialog var="dialog">
  This is a dialog!
</ons-dialog>

var attribute is used to store the dialog in a variable for later access.

Alert dialogs work exactly like normal dialogs but they require some additional markup. With this element you can create a beautifully styled dialog without any additional CSS.

<ons-alert-dialog>
  <div class="alert-dialog-title">Warning!</div>
  <div class="alert-dialog-content">
    An error has occurred!
  </div>
  <div class="alert-dialog-footer">
    <button class="alert-dialog-button">Cancel</button>
    <button class="alert-dialog-button">OK</button>
  </div>
</ons-alert-dialog>

Dialogs are hidden by default and usually attached as direct children of the <body> tag.

Displaying a dialog

To display a dialog you need to get a reference to the element and execute the show(options) method. It is hidden with the hide(options) method.

Loading from a template

Another way to use dialogs is with the ons.createElement(template) utility function. The dialog needs to be defined as a template and the function returns a Promise that resolves to the dialog element.

<template id="dialog.html">
  <ons-dialog>
    This dialog is defined as a template.
  </ons-dialog>
</template>
ons
  .createElement('dialog.html', { append: true })
  .then(function(dialog) {
    dialog.show();
  });

For AngularJS, an extra parameter can be passed to specify the scope of the new popover: ons.createElement('dialog.html', { parentScope: $scope });

The cancelable attribute

The <ons-dialog>, <ons-alert-dialog> and <ons-toast> support the cancelable attribute. This enables hiding the dialog by tapping outside of it or by pressing the back button on Android devices.

<ons-dialog cancelable>
  This dialog can be cancelled!
</ons-dialog>

Try adding the cancelable attribute to one of the dialogs to see how it works.

Notification

Another way to display dialogs is with the ons.notification methods:

  • ons.notification.alert(options)
  • ons.notification.confirm(options)
  • ons.notification.prompt(options)
  • ons.notification.toast(options)

These methods all return a Promise. For the confirm it resolves to the index of the button pressed and for the prompt it resolves to the user input.

ons
  .notification.prompt({message: 'What is your name?'})
  .then(function(name) {
    ons.notification.alert('Hello ' + name);
  });

See also

Attributes

Name Type Description
animation String
default
The animation used when showing and hiding the toast. Can be either "default", "ascend" (Android), "lift" (iOS), "fall", "fade" or "none". Optional.
animation-options Expression Specify the animation’s duration, timing and delay with an object literal. E.g. {duration: 0.2, delay: 1, timing: 'ease-in'}. Optional.
var String Variable name to refer this toast dialog. Optional. Works only during initialization.
ons-preshow Expression Allows you to specify custom behavior when the “preshow” event is fired. Optional. Works only during initialization.
ons-prehide Expression Allows you to specify custom behavior when the “prehide” event is fired. Optional. Works only during initialization.
ons-postshow Expression Allows you to specify custom behavior when the “postshow” event is fired. Optional. Works only during initialization.
ons-posthide Expression Allows you to specify custom behavior when the “posthide” event is fired. Optional. Works only during initialization.
ons-destroy Expression Allows you to specify custom behavior when the “destroy” event is fired. Optional. Works only during initialization.

Properties

Name Description
onDeviceBackButton Back-button handler.
visible Whether the element is visible or not.

Methods

Signature Description
show([options]) Show the element.
toggle([options]) Toggle toast visibility.
hide([options]) Hide toast.
on(eventName, listener) Add an event listener.
once(eventName, listener) Add an event listener that’s only triggered once.
off(eventName, [listener]) Remove an event listener. If the listener is not specified all listeners for the event type will be removed.
show([options]): Promise

Show the element.

Returns: Resolves to the displayed element

Parameters
Name Type Description
options Object Parameter object.
options.animation String Animation name. Available animations are "default", "ascend" (Android), "lift" (iOS), "fall", "fade" or "none".
options.animationOptions String Specify the animation’s duration, delay and timing. E.g. {duration: 0.2, delay: 0.4, timing: 'ease-in'}.
toggle([options])

Toggle toast visibility.

Parameters
Name Type Description
options Object Parameter object.
options.animation String Animation name. Available animations are "default", "ascend" (Android), "lift" (iOS), "fall", "fade" or "none".
options.animationOptions String Specify the animation’s duration, delay and timing. E.g. {duration: 0.2, delay: 0.4, timing: 'ease-in'}.
hide([options]): Promise

Hide toast.

Returns: Resolves to the hidden element

Parameters
Name Type Description
options Object Parameter object.
options.animation String Animation name. Available animations are "default", "ascend" (Android), "lift" (iOS), "fall", "fade" or "none".
options.animationOptions String Specify the animation’s duration, delay and timing. E.g. {duration: 0.2, delay: 0.4, timing: 'ease-in'}.
on(eventName, listener)

Add an event listener.

Parameters
Name Type Description
eventName String Name of the event.
listener Function Function to execute when the event is triggered.
once(eventName, listener)

Add an event listener that’s only triggered once.

Parameters
Name Type Description
eventName String Name of the event.
listener Function Function to execute when the event is triggered.
off(eventName, [listener])

Remove an event listener. If the listener is not specified all listeners for the event type will be removed.

Parameters
Name Type Description
eventName String Name of the event.
listener Function Function to execute when the event is triggered.

Need Help?

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For bug reports and feature requests use our GitHub Issues page.