September 2019
Beginner
512 pages
12h 52m
English
Content preview from Flutter for Beginners
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The Animation<T> class
In Flutter, animations consist of a status and a value with the T type. The animation status corresponds to its state (that is, if it's running or completed); its value corresponds to its current value, and it is intended to change during the animation execution.
Besides holding that information about the animation, this class exposes callbacks so other classes can know how the animations are running, and the animation's current status and value too.
An Animation<T> class instance is only responsible for holding and exposing those values. It does not know anything about visual feedback, what is drawn on screen, or how to draw it (that is, build() functions).
One of the most common kinds of animation you will see is ...
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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.
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.