March 2013
Beginner to intermediate
580 pages
16h 11m
English
Content preview from Android Programming: The Big Nerd Ranch GuideBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Challenge: An Empty View for the List
Currently, when CriminalIntent launches, it displays an empty list – a big black void. You should give users something to interact with when there are no items in the list.
ListView, because it is a subclass of AdapterView, supports a special View called the “empty view” for this very scenario. If you specify a view for the empty view, the ListView will automatically switch between showing it when there are no items, and showing the list when there are some items.
You can specify the empty view in code using the following AdapterView method:
public void setEmptyView(View emptyView)
Or you can create a layout in XML that specifies both the ListView and the empty view. If you give them resource IDs of @android:id/list ...
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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.