On Thu, Oct 3, 2013 at 4:16 PM, Rutledge Shawn <shawn.rutle...@digia.com>wrote:
> > On 2 Oct 2013, at 4:40 PM, Joseph Crowell wrote: > > > On 02/10/2013 10:33 PM, Mark wrote: > >> On Wed, Oct 2, 2013 at 7:52 AM, Rutledge Shawn < > shawn.rutle...@digia.com> wrote: > >> > >> > >> Ensuring that it works on the mobile platforms too sounds like a good > idea, to the extent that it's possible. But the lifecycle issues might be > different, e.g. usually a "background application" can be killed at any > time, so should the icon go away when that happens? > >> > >> I think it should work exactly as you just described it. If one wants > to make the icon "persistent" then that would probably have to be done by > the developer. This class should not care about that. > > http://developer.android.com/guide/topics/ui/notifiers/notifications.html > http://support.apple.com/kb/HT3576 > http://growl.info/ > http://www.maketecheasier.com/a-guide-to-kde-notification-system/2011/11/11 > http://www.notmart.org/index.php/Software/Notifications,_let_the_redesign_ > > http://drfav.wordpress.com/2012/09/17/the-notifications-issue-part-3-the-possible-solution/ > > A notification seems to be a fairly different sort of thing if we try to > think of it as a cross-platform concept; they are usually persistent, and > often you can re-open the application that triggered it later on (even days > later). The left-side "tray" icon on Android exists only to tell you that > you have a notification; the application doesn't create an icon right from > the beginning and then display popup balloons later on, the way it does on > the Windows tray. That type of icon is more like the ones on the top right > corner on Android (wifi, bluetooth, battery, clock etc.) but I don't find a > standard way for an ordinary application to put such an icon there: > > > http://stackoverflow.com/questions/18350016/how-to-create-a-notification-status-bar-icon-on-the-right-side > > > As far as mobile compatibility goes, isn't QSystemTrayIcon QtWidgets > based? I believe current advice is to stay away from QtWidgets on mobile > platforms. > > Well a system tray icon is kindof special, but there's no point in adding > a dependency on widgets that you otherwise don't need. I think maybe we > need a new Qt Quick API for notifications (but we haven't promised such a > thing AFAIK). In that case it will of course be independent of widgets. > The functionality we provide should look as normal as possible on mobile > devices and desktops. I just developed the MessageDialog Qt Quick API, but > there is also a "Toast" on Android which is just another kind of popup > message thing, and a notification is also a simple popup message, but all > of these have different features (a MessageDialog can have an icon, up to 3 > different pieces of text, and lots of buttons, but a Toast has no buttons, > only one piece of text, and dismisses itself, while the notification is > persistent until the user dismisses it, even after the app has exited). > There are also the fairly unique push notifications on iOS (the red bubble > with a number in it, which can be "pushed" even when the application isn't > running). It's hard to come up with a consistent cross-platform API for > all of those, but at least the persistent, text-with-icon, fire-and-forget > notification seems to be available on most platforms in one way or another. > Perhaps notifications can be considered more pervasive than tray icons > (for ordinary applications, not counting "special" system tools). > > I always thought it was a bit arbitrary anyway that every application will > show up in the task bar… except a few of them which consider themselves so > special that they should reside in the tray instead. Sometimes they are > otherwise ordinary applications which are abusing the tray, because they > think it's convenient for the users, or for marketing reasons (start > automatically and stay in sight all the time so the user doesn't forget to > use it). Maybe that's the reason why Apple and Google both want to own and > control the applications that can create tray icons on their devices. So > how can we have a fully cross-platform API for that? > > (Disclaimer: all of the above is my opinion, and subject to discussion; > please don't construe as any sort of promise from Digia) > _______________________________________________ > Interest mailing list > Interest@qt-project.org > http://lists.qt-project.org/mailman/listinfo/interest > Hi Shawn, All of the above actually sounds very nice to me. I'm all in for a QtQuick component for this purpose. Mind you, my initial question was just an informational one. :)
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