April 2019
Beginner to intermediate
698 pages
15h 15m
English
Content preview from Android Programming with Kotlin for BeginnersBecome 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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Exploring the palette – part 2, and more lambdas
Now that we have seen how lambdas and anonymous classes and interfaces work, specifically with RadioGroup and RadioButton, we can now continue exploring the palette and look at working with some more UI widgets.
The Switch widget
The Switch widget is just like a Button widget except that it has two fixed states that can be read and responded to.
An obvious use for the Switch widget is to show and hide something. Remember that in our Kotlin Meet UI app in Chapter 12, Connecting Our Kotlin to the UI and Nullability we used a Button to show and hide a TextView widget?
Each time we hid or showed the TextView widget, we changed the text property on the Button to make it evident what would happen if it ...
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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.