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Snackbar

Snackbars provide brief messages about app processes. The component is also known as a toast.

Snackbars inform users of a process that an app has performed or will perform. They appear temporarily, towards the bottom of the screen. They shouldn’t interrupt the user experience, and they don’t require user input to disappear.

Snackbars contain a single line of text directly related to the operation performed. They may contain a text action, but no icons. You can use them to display notifications.

Frequency

Only one snackbar may be displayed at a time.

Simple snackbars

A basic snackbar that aims to reproduce Google Keep's snackbar behavior.

Customized snackbars

Ниже находятся примеры кастомизации компонента. You can learn more about this in the overrides documentation page.

<Button variant="outlined" onClick={handleClick}>
  Open success snackbar
</Button>
<Snackbar open={open} autoHideDuration={6000} onClose={handleClose}>
  <Alert onClose={handleClose} severity="success">
    This is a success message!
  </Alert>
</Snackbar>
<Alert severity="error">This is an error message!</Alert>
<Alert severity="warning">This is a warning message!</Alert>
<Alert severity="info">This is an information message!</Alert>
<Alert severity="success">This is a success message!</Alert>

Positioned snackbars

There may be circumstances when the placement of the snackbar needs to be more flexible.

Message Length

Some snackbars with varying message length.

<SnackbarContent message="I love snacks." action={action} />
<SnackbarContent
  message={
    'I love candy. I love cookies. I love cupcakes. \
    I love cheesecake. I love chocolate.'
  }
/>
<SnackbarContent message="I love candy. I love cookies. I love cupcakes." action={action} />
<SnackbarContent
  message={
    'I love candy. I love cookies. I love cupcakes. \
    I love cheesecake. I love chocolate.'
  }
  action={action}
/>

Transições

Consecutive Snackbars

When multiple snackbar updates are necessary, they should appear one at a time.

Snackbars and floating action buttons (FABs)

Snackbars should appear above FABs (on mobile).

Изменить Transition

Grow is the default transition but you can use a different one.

<Button onClick={handleClick(GrowTransition)}>Grow Transition</Button>
<Button onClick={handleClick(Fade)}>Fade Transition</Button>
<Button onClick={handleClick(SlideTransition)}>Slide Transition</Button>
<Snackbar
  open={state.open}
  onClose={handleClose}
  TransitionComponent={state.Transition}
  message="I love snacks"
/>

Control Slide direction

You can change the direction of the Slide transition.

<Button onClick={handleClick(TransitionLeft)}>Right</Button>
<Button onClick={handleClick(TransitionUp)}>Up</Button>
<Button onClick={handleClick(TransitionRight)}>Left</Button>
<Button onClick={handleClick(TransitionDown)}>Down</Button>
<Snackbar
  open={open}
  onClose={handleClose}
  TransitionComponent={transition}
  message="I love snacks"
/>

Дополнительные проекты

Для более сложных вариантов использования вы можете воспользоваться:

notistack

stars npm downloads

This example demonstrates how to use notistack. notistack has an imperative API that makes it easy to display snackbars, without having to handle their open/close state. It also enables you to stack them on top of one another (although this is discouraged by the Material Design specification).

Доступность

(WAI-ARIA: https://www.w3.org/TR/wai-aria-1.1/#alert)

  • By default, the snackbar won't auto-hide. However, if you decide to use the autoHideDuration prop, it's recommended to give the user sufficient time to respond.

API