Commit 56811f3e authored by Fabian Riethmayer's avatar Fabian Riethmayer

Add page about notification

parent 1d112c6d
......@@ -5,11 +5,14 @@ Platform
This is an overview of how to integrate your application into the
:doc:`plasma workspaces </introduction/architecture>`.
* :doc:`tray`
* :doc:`getnew`
* :doc:`notification`
* :doc:`tray`
Notifications are a way to inform users of your app about events, even if the
applications has no focus, is minimized, or is only running in the background.
.. figure:: /img/Notification.png
Update notification
Is this the right control
Use notifications to inform the user of events that are of interest, even if
your app is not in foreground, but don't spam the user with notifications.
- Completion of long running tasks that the user has started manually
- Incoming communication from other users
- Hardware related events like low battery, lost network connection, running
out of disk space
Don't use a notification for:
- Operations that don't require user interaction, such as background processes,
syncing, or updates
- Advertising, rating or feedback requests, or other annoyances
- If an unexpected or potentially dangerous condition has been reached and the
user must make a decision. Use an :doc:`/components/assistance/message`
- Don't send notifications if an user has never opened your application
Notifications are provided by the system to the user, and foremost the
user settings for notification govern the behavior and appearance of
notifications. But there are several options to influence and enrich the
behavior of your notifications.
Making a notification persistent will prevent it from closing after a timeout.
Your app must revoke the persistent notification, if the reason for the
notification no longer applies, like a power adapter was plugged after a
"Laptop battery is almost empty" notification.
It is recommended that a notification carrys an urgency hint:
- 0 – Low, “Matt is now online”, “You just plugged in your AC adapter”
- 1 – Normal, “You have new mail”
- 2 – Critical, “Laptop battery is almost empty”
You can add up to three action buttons to the notification to enable the user
to react to the event without having to go to the app itself.
You can specify a URL to an image associated with the notification. The image
will be displayed as a preview in the notification.
.. figure:: /img/Notification2.png
Notification with a preview image
.. Quick Reply
This enables the user to reply to an email or SMS from within the
notification. A “Reply” text field is placed in the notification window
whose content is eventually sent back to the application through the
notification server.
.. code-block:: c++
KNotification *notification= new KNotification ( "contactOnline", widget );
notification->setText( i18n("The contact %1 has gone online",
contact->name() );
notification->setPixmap( contact->pixmap() );
notification->setActions( QStringList( i18n( "Open chat" ) ) );
connect(notification, SIGNAL(activated(unsigned int )), contact ,
SLOT(slotOpenChat()) );
Use :knotificationsapi:`<KNotification>` to send notifications to the
:doc:`Plasma Workspaces </introduction/architecture>`.
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