Updates a notification, given its ID.
This is an asynchronous function that returns a
Promise
.
var updating = browser.notifications.update(
id
,
// string
选项
// NotificationOptions
)
id
string
. The ID of the notification to update. This is the same as the ID passed into
notifications.create()
's callback.
选项
notifications.NotificationOptions
. Defines the notification's new content and behavior.
A
Promise
that will be fulfilled with a boolean:
true
if the notification was updated, or
false
if it was not (for example, because the notification referenced by
id
did not exist).
BCD tables only load in the browser
此范例使用
update()
to update a progress notification. Clicking the browser action shows the notification and starts an
alarm
, which we use to update the notification's progress indicator.
Note that you'll need the "alarms"
permission
to create alarms (as well as the "notifications" permission to create notifications). Also note that Firefox does not support the
progress
属性。
var cakeNotification = "cake-notification";
/*
CAKE_INTERVAL is set to 0.3 seconds in this example.
Such a short period is chosen to make the extension's behavior
more obvious, but this is not recommended in real life.
Note that in Chrome, alarms cannot be set for less than
a minute.
*/
var CAKE_PREP_INTERVAL = 0.005;
var progress = 0;
browser.alarms.onAlarm.addListener(function(alarm) {
progress = progress + 10;
if (progress > 100) {
browser.notifications.clear(cakeNotification);
browser.alarms.clear("cake-progress");
} else {
browser.notifications.update(cakeNotification, {
"progress": progress
});
}
});
browser.browserAction.onClicked.addListener(function () {
browser.notifications.getAll((all) => {
if (all.length > 0) {
browser.notifications.clear(cakeNotification);
return;
}
progress = 0;
browser.notifications.create(cakeNotification, {
"type": "progress",
"iconUrl": browser.extension.getURL("icons/cake-48.png"),
"title": "Your cake is being prepared...",
"message": "Something something cake",
"progress": progress
});
browser.alarms.create(
"cake-progress",
{periodInMinutes: CAKE_PREP_INTERVAL}
);
});
});
注意：
This API is based on Chromium's
chrome.notifications
API。
Microsoft Edge compatibility data is supplied by Microsoft Corporation and is included here under the Creative Commons Attribution 3.0 United States License.
最后修改： , 由 MDN 贡献者