November 2023
Beginner to intermediate
278 pages
6h 12m
English
Content preview from Android UI Development with Jetpack Compose - Second Edition
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5
Managing State of Your Composable Functions
In Chapter 4, Laying Out UI Elements in Compose, I showed you how to set the red, green, and blue portions of a color by dragging sliders. We used state to store the color portions and passed simple values and callbacks that are invoked when value changes are due to composable functions. Quite a few other sample apps of the previous chapters dealt with state too. In fact, reacting to state changes is critical to how modern mobile apps work.
So far, I have described state as data that can change over time. You learned about a few important functions – for example, remember { } and mutableStateOf(). I also briefly touched on a concept called state hoisting.
This chapter builds on these foundations. ...
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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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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.