August 2015
Intermediate to advanced
296 pages
6h 40m
English
Content preview from Xamarin Mobile Application Development for Android, Second EditionBecome 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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Refreshing POIListActivity
Actions we take on POIDetailActivity, such as Save and Delete, have an effect on the data displayed in POIListActivity. We need to ensure that ListView in POIListActivity is refreshed and displays the updated POI list when it becomes active again. To achieve this, we have to depend on the activity life cycle callback methods.
As you may recall from Chapter 1, The Anatomy of an Android App, when an activity is moved to the background due to the start of a new activity, the OnPause() method is called. This would have happened for POIListActivity when POIDetailActivity was started. Once POIDetailActivity is completed by either calling the Finish() method or by pressing the device back button, the POIListActivity will be ...
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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.