Snackbars provide brief feedback about an operation through a message at the bottom of the screen.

Snackbars contain a single line of text directly related to the operation performed. They may contain a text action, but no icons.

Toasts (Android only) are primarily used for system messaging. They also display at the bottom of the screen, but may not be swiped off-screen.

Usage

Only one snackbar may be displayed at a time. Each snackbar may contain a single action, neither of which may be “Dismiss” or “Cancel.”

Behavior

Snackbars animate upwards from the bottom edge of the screen.

Snackbar specs

Action button: Roboto Medium 14sp, all-caps text
Mobile height: 48dp (single-line), 80dp (multi-line)
Desktop snackbar height: 48dp

Usage

Show only one snackbar on screen at a time.

Placement

Snackbars appear above most elements on screen, and they are equal in elevation to the floating action button. However, they are lower in elevation than dialogs, bottom sheets, and navigation drawers.

Behavior

Upon entrance, snackbars animate upwards from the bottom edge of the screen. When they appear, they do not block input.

They exit by being swiped off-screen or automatically disappear after a timeout or user interaction elsewhere (such as summoning a new surface or activity).

Very short text strings

Snackbars should contain a single line of text directly related to the operation performed. They may contain a text action. They cannot contain icons.

Transient

Snackbars automatically time out from the screen. For usability reasons, snackbars should not contain the only way to access a core use case. They should not be persistent or be stacked, as they are above other elements on screen.

On Android, when an unrelated dialog or popup occurs while the snackbar is up, the snackbar timeout will reset upon the window focus being regained. This is to ensure that the user will be able to read the snackbar for the full intended duration.

0-1 actions, not dismiss or cancel

If an action is present, comply with dialog spacing and affordance rules. For two or more actions, use a dialog, not a snackbar, even when one of the actions is a dismiss action. If the action described in the snackbar is important enough to block the use of the screen, it should be a dialog.

Don’t block the floating action button

Move your floating action button vertically to accommodate the snackbar height.

Do.

Don’t.

Consecutive snackbars

There is only ever one snackbar displayed. When a second snackbar is triggered while the first is displayed, the first should start the contraction motion downwards before the second one animates upwards.

Two consecutive snackbars with different content.

Two consecutive snackbars with the same content.

Specs

Mobile

Single-line snackbar height: 48dp
Multi-line snackbar height: 80dp
Text: Roboto Regular 14sp
Action button: Roboto Medium 14sp, all-caps text
Default background fill: #323232 100%

Animation of a mobile snackbar

Tablet/desktop

Single-line snackbar height: 48dp tall
Minimum width: 288dp
Maximum width: 568dp
2dp rounded corner
Text: Roboto Regular 14sp
Action button: Roboto Medium 14sp, all-caps text
Default background fill: #323232 100%
Alignment: Centered or left-aligned 24dp from the left and bottom edges of the screen