May 2022
Intermediate to advanced
688 pages
20h 12m
English
book
Android Programming: The Big Nerd Ranch Guide, 5th Edition
by Bryan Sills, Brian Gardner, Kristin Marsicano, Chris Stewart
Content preview from Android Programming: The Big Nerd Ranch Guide, 5th Edition
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Composing Your First UI
With your framework views out of the way, you are ready to write your first Compose UI. The default layout in the Empty Activity project template you have used throughout this book includes an empty Activity with the text “Hello World!” For your first Compose UI, you will remake this layout without any framework views. (Printing “Hello World!” to the screen is a time-honored coding tradition.)
To populate an activity with a Compose UI, you use a function called setContent. This function accepts a lambda expression, which is where you have access to Compose UI elements, called composables. Use the Text composable to show the text “Hello World!”
Listing 26.4 Writing a Compose UI (MainActivity.kt)
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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.