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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Dismissing the Dialog
Whenever a dialog is part of your composition, it will be shown onscreen. You have not told your ToppingPlacementDialog when it should stop being displayed, so attempts to dismiss it will do nothing. And none of Compose’s dialog functions has a parameter to set the dialog’s visibility, so you will need another way to dismiss your dialog.
In Chapter 26, you made another UI element that was visible only some of the time: the placement label in your ToppingCell.
You use an if statement so that the Text composable is only invoked when you want it to be visible.
You will use the same approach to show and hide the dialog.
With the dialog’s visibility controlled by an if statement, the job of the onDismissRequest lambda ...
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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.