Chromium Blog
News and developments from the open source browser project
Rich Notifications in Chrome
2013年5月23日木曜日
App notifications send immediate alerts to users about important events as they happen. Chrome and Chrome OS already support basic web notifications, but rich notifications for Chrome
packaged apps
and extensions can enable users to act directly on these notifications and show rich content like lists and images. For those in beta channel, notifications now live in a center that is outside the browser, which allows them to receive notifications even when the browser is not open.
Rich notifications are available in the latest beta channel builds on
Windows
, dev channel builds on
ChromeOS
, and will be coming to Mac OS X and Linux soon.
You can trigger a rich notification by calling the
create
method under the
chrome.notifications
module:
chrome.notifications.create(
‘id1’,{
type:
‘basic’
,
iconUrl:
‘image1.png’
,
title:
‘Althe Frazon’
,
message:
‘Hi, what's going on tonight?’
,
buttons: [{ title:
‘Call’
,
iconUrl:
‘call.png’
},
{ title:
‘Send Email’
,
iconUrl:
‘email.png’
}],
priority: 0},
function() { /* Error checking goes here */}
);
Rich notifications include full-bleed icons and space to convey a headline and short message. Additionally, they enable you to create action buttons and respond to clicks right within your app, empowering your users to do anything they could do within the app’s UI itself.
Apart from the
basic
notification type shown above, you can use other formats like
image
to show a preview of an image within the notification or
list
to coalesce multiple notifications from your app into a single one. For example, a mail app could show multiple unread emails within a single notification using the list type. You can also specify different priorities for notifications that determine how long they stay on the screen before moving into the notification center where they continue to live until dismissed by the app or user.
The notification center holds all current notifications and can be pulled up at any time from the launcher on ChromeOS or the system tray on Windows. Users can view and clear all of their notifications in the center, and also access settings to control which apps, extensions and websites can send them notifications.
Notification Center on Windows
Notification Center on ChromeOS
You can get started with rich notifications in your app or extension by trying out the
Notify Test App
and taking a look at the
documentation
on the Chrome developer site. We’d love your feedback so feel free to ask a question on
Stack Overflow
, start a discussion on our
mailing list
, or file a bug on our
issue tracker
. Posted by Justin DeWitt, Software Engineer and Notifications Knight
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