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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State List Drawables
As good as they look, these buttons are still static. Under the covers, the old Button background was using a state list drawable. State list drawables allow you to display a different drawable for each state its associated View is in. (You previously used a state list drawable to change the background of list items in Chapter 18.) There are a lot of different states, but here you are only interested in whether the button is being pressed or not.
Start off by creating the look for your pressed button. This look will be same as the normal button look except for the color.
In the package explorer, make a copy of button_shape_normal.xml and name it button_shape_pressed.xml. Open button_shape_pressed.xml and add 180 degrees ...
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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.
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