Development Tips for the Book

Kotlin and Android Development featuring Jetpack — by Michael Fazio (8 / 125)

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Android development, while great, can be a bit tricky. Even getting things set up can be a pain, but I hope Appendix 1, ​Install Android Studio​, makes that process smoother. The emulator works really well now, so you don’t need a physical device, but it can be nice to see the apps working on an actual phone.

Also, if you’re using the emulator, know that it can lose connectivity, making most of the ABL chapters impossible. This in particular can happen when the emulator is running and your computer goes to sleep. Don’t be afraid to restart the emulator or ADB server (and even your computer if needed).

Along those lines, when in doubt, uninstall the app. This is especially valuable when working with Room and a database. Any structural DB changes would normally require a migration (a proper change/upgrade to a DB), but since we’re still in dev, you can skip it with a reinstallation of the app.

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