The Floating action button is a circular button defined in the Material Design specification. They are often used to promote the primary action of the app. It can be displayed either as an inline element or in one of the corners. Normally it will be positioned in the lower right corner of the screen.


Floating action button

The Floating action button is a UI component introduced in Material Design. It is used to represent the primary action of an app.

In Onsen UI the Floating action button can be displayed using the <ons-fab> element.


Changing the position

By default the component is displayed as an inline element. By using the position attribute it can be placed in one of the corners. The most common value is bottom right since that’s where it’s usually positioned in Android native apps.

<ons-fab position="bottom right">

Hiding in iOS

By default the <ons-fab> will be rendered in both iOS and Android. However, in most cases it should not be displayed in iOS but instead the same action should be tied to some other UI component.

To only display it in Android, the <ons-if> element can be used.

<ons-if platform="android">

You can try adding the <ons-if> element in the code and switch between iOS and Android.

See also

Attributes are added directly to the element. You can do this in HTML or JS.

HTML: <ons-fab someAttribute="true" anotherAttribute><ons-fab>
JS: document.querySelector('ons-fab').setAttribute('someAttribute', 'true')

Name Type Description
modifier String The appearance of the button. Optional.
ripple If this attribute is defined, the button will have a ripple effect when tapped. Optional.
position String The position of the button. Should be a string like "bottom right" or "top left". If this attribute is not defined it will be displayed as an inline element. Optional.
disabled Specify if button should be disabled. Optional.

Properties are accessed on the element through JS, and should be get and set directly. For example: document.querySelector('ons-fab').disabled.

Name Description
disabled Whether the element is disabled or not.
visible Whether the element is visible or not.

Modifiers are set in the modifier attribute. To use more than one, separate them by spaces. For example:
<ons-fab modifier="mini modifier2"><ons-fab>.

Name Description
mini Makes the ons-fab smaller.

These methods are called directly on the DOM element. Get a reference to the element in JS, and the methods below will be available to call on it. For example: document.querySelector('ons-fab').someMethod().

Signature Description
show() Show the floating action button.
hide() Hide the floating action button.
toggle() Toggle the visibility of the button.

Show the floating action button.


Hide the floating action button.


Toggle the visibility of the button.

Need Help?

If you have any questions, use our Community Forum or talk to us on Discord chat. The Onsen UI team and your peers in the community will work together to help solve your issues.

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