October 2010
Intermediate to advanced
400 pages
8h 3m
English
book
The Android Developer’s Cookbook: Building Applications with the Android SDK
by James Steele, Nelson To
Content preview from The Android Developer’s Cookbook: Building Applications with the Android SDK
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5. User Interface Events
The two aspects of a user interface are screen layout and event handling. Chapter 4, “User Interface Layout,” discussed how layouts are made up of View objects, such as text and buttons. This chapter shows how to handle events from a user, such as physical key presses, touch events, and menu navigation. It also shows how to utilize a few advanced user interface (UI) libraries, namely gestures and 3D graphics.
Event Handlers and Event Listeners
Most user interaction with an Android device is captured by the system and sent to a corresponding callback method. For example, if the physical Back button is pressed, the onBackPressed() method is called. These events can be handled by extending the class and overriding the ...
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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.