New answers tagged notification-bar
Try looking for it in the widegets section and add it from there.
Not sure if this works for all notifications, or 4.x as originally asked, but I am using Lollipop (5.0.2) and just double-tapped a notification (from Google Play Store, about not being able to update an app because of insufficient storage space). It came up as a dialog box with the full text.
In Settings › Apps, you have to chose the "All" tab: by default, Settings usually shows the "Downloaded" tab, which holds all the apps the user installed. The stock messaging app does not fall into that category, as it comes pre-installed – hence you'll find it on the "All" tab. Now you've found it, you can take the approach you initially had in mind: ...
All you've got to do is hold it down, go to app info, untick and retick 'show notifications' and then it should stay off the notification bar after reclicking it
have you tried pulling down the notification with 2 fingers? if that doesnt work then it maybe that the specific app doesnt support it. not all apps support viewing the entire text in the notifications panel.
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