Abstract
Activities represent user interface entry points of your app. Any app that needs to interact functionally with the user in a direct way, by letting the user enter things or telling the user graphically about the functional state of an app, will expose at least one activity to the system. I say functionally because telling the user about events can also happen via notifications through toasts or the status bar, for which an activity is not needed.
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© 2018 Peter Späth
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Späth, P. (2018). Activities. In: Pro Android with Kotlin. Apress, Berkeley, CA. https://doi.org/10.1007/978-1-4842-3820-2_3
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DOI: https://doi.org/10.1007/978-1-4842-3820-2_3
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Publisher Name: Apress, Berkeley, CA
Print ISBN: 978-1-4842-3819-6
Online ISBN: 978-1-4842-3820-2
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