What to expect when you're expecting to write an Android app

An introduction to writing Android apps, given at a local GDG meetup.

Transcript

1. What to expect when you're expecting to write an Android app Dan Lew @danlew42
2. • Android Studio • apt • adb • Calligraphy • ButterKnife • dex • dexmaker • Retrolambda • OkHttp • Phrase • Picasso • Genymotion • Dagger • RxJava • RxAndroid • RxBinding • RxLifecycle • RxRelay • RxLint • Support library • Design support library • Palette • CardView • RecyclerVie w • Test support library • App compat • LeakCanary • Otto • EventBus • Gson • Stethp • SqlBrite • SqlDelight • Retrofit • Tape • Timber • Navi • OrmLite • Process Phoenix • Google Play Services • Firebase • RoundedIma geView • Subsamplin g Scaling ImageView • Victor • joda-time • joda-time- android • auto-value • auto-value- gson • auto-value- parcelable • android-apt • Apache commons • BetterPicker s • Crashlytics • gradle- versions- plugin • Hugo • Quantcast • Mockito • Sticky List Headers • Error Prone • Hierarchy Viewer • systrace • Gradle • Logcat • Pro guard
5. Tools
6. Google Nexus
7. Android Studio
8. USB Cable
9. Becoming a Developer
10. Concepts
11. Concepts • Context • Lifecycles • Intents • Permissions • Configuration
12. Components • Activities • Services • Broadcast Receivers • Content Providers
13. Activity • Views • ViewGroups • findViewById()
14. Structure
15. Manifest Your app’s API
16. Java All your code
17. Resources Layouts, images, values, configuration, etc…
18. Gradle Build configuration
19. Important Libraries
20. Google Support Libraries • Backwards-compatible implementations • AppCompat • New features
21. Google Play Services / Firebase • (Mostly) free Google services • Ties you to Google-approved devices
22. Networking • Most apps require internet • HTTP: OkHttp • REST: Retrofit
23. Rookie Mistakes • Developing for a single screen size • Mishandling configuration changes • Using implicit intents • Blocking the main thread • Overstuffing Activity • Forgetting internet permission • Following Google 100%
24. Catching Mistakes • Android Lint • StrictMode
25. First Release Checklist • Some things can (or should) never change… • Package name • Signing certificate • Manifest API • Crash logger • Publishing Google account
26. Education
27. Java • The Internet • Head First Design Patterns • Effective Java
28. Android • The Internet • Android documentation • The Busy Coder's Guide to Android Development
29. Training • Android @ Udacity • Google Study Jams • Paid training
30. Open Source • AOSP: https://source.android.com/ • u2020: https://github.com/JakeWharton/u2020 • iosched: https://github.com/google/iosched • …And much, much more!
31. Questions? @danlew42 Slides: https://goo.gl/UWDwjv