May 2012
Beginner
504 pages
12h 50m
English
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Chapter 19
Popovers and Modal Views
This lesson presents two ways of temporarily displaying data for user feedback:
- Popovers
- Modal views
Though the overall purpose is the same between popovers and modal views, they behave differently when implemented. For example, to dismiss a popover, you simply tap outside the bounds of the popover itself. To dismiss a modal view, you must touch a user-defined button that will dismiss it. Because of this permanence, modal views are presented to the user for immediate required feedback in order to continue the application.
Popovers
Popovers by definition are views that are revealed when a control is tapped. They also have the visual effect of being attached to that control as shown in Figure 19-1.
Usage Guidelines
The popover is an iPad-only view, and suggested uses are as follows:
- To provide a list of additional information related to the selected control.
- In a split view in portrait mode, to display the list that would appear in the left pane in landscape mode.
- To display a list of options displayed in an action sheet.
Apple User Interface Guidelines recommend that you do not provide a Done or Dismiss option in your popover. By design, a popover is dismissed by simply tapping outside the popover itself.
Presenting the Popover ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.