Notification Center on iOS
|Initial release||October 12, 2011iOS 5)(with the introduction of|
|Stable release||iOS 6.1.2 / February 19, 2013|
|Operating system||iOS 5 and later
OS X 10.8 and later
Notification Center is a feature in iOS and OS X that provides an overview of alerts from applications. It displays notifications until the user completes an associated action, rather than requiring instant resolution. Users may choose what applications appear in Notification Center, and how they are handled. Initially released alongside iOS 5 in October 2011, Notification Center was made available on Mac as part of OS X Mountain Lion in July 2012.
Notification Center was released in iOS 5 to replace the previous system for dealing with push and local notifications. Instead of interrupting the user with an alert, Notification Center instead displays a banner at the top of the screen. This allows the user to continue using their device, and disappears after a set period of time. All previous notifications are collated into the Notification Center itself, a panel that can be dragged down from the status bar in iOS, and by clicking on the notification center button (or using track-pad gestures, swiping from right to left) in OS X. Notifications stored in the panel may be selected by the user, thereby redirecting them to the application that initially created the notification, and marking that alert as read. Once a notification is read, it is removed from the panel. Users may also remove notifications without reading them by deleting single alerts, or dismissing all from a certain application. When an iOS device is locked, new notifications appear on the lock screen, and users may access the relevant application by swiping the application's icon with their finger from left to right along the notification.
Notification Center on iPhone and iPod Touch also includes Weather and Stocks widgets, displaying information on the weather at the user's current location, and any stocks that the user has selected in the Stocks application. This feature is not available on iPad or OS X. Users can also select the option to display Twitter and Facebook buttons, allowing them to send tweets or update their status directly from Notification Center.
Any application that uses the Push Notifications system provided by Apple, or local notifications, may use Notification Center. OS X applications may only use this system if they are downloaded from the Mac App Store. Users may customise what they want to appear in Notification Center, and may opt to stop certain applications appearing in the center, or sending alerts to their screen. OS X users may also disable alerts and banners for a day, stopping notifications appearing on the screen. However, any notifications sent during this time are still visible in the Notification Center panel. A similar service is included in iOS 6 as part of the Do Not Disturb feature.
See also 
- "iOS 5: Notifications and Notification Center — Apple News, Tips and Reviews". Gigaom.com. Retrieved 2011-10-14.
- "Apple- OS X Mountain Lion". Apple. Retrieved 2012-07-31.
- "New in iOS 6: update Twitter and Facebook from Notification Center". iDownloadblog. 2012-06-11. Retrieved 2012-07-31.
- "Use iOS 5's Notification Center". ITworld. 2011-10-10. Retrieved 2011-10-14.
- "OS X Mountain Lion features coming in iOS 6". 9to5 Mac. 2012-06-04. Retrieved 2012-07-31.