Using the component Navigation of the new JetPack

1. Make Android
development easier
Architecture Components - Navigation

3. Challenges for Navigation
Fragments transactions
Deep links
Testing
Up and back
Passing arguments
Boilerplates

4. Home
Category
Item
Need to be created and added
to back stack on deep link
http://...

5. Navigation
Define navigation graph with visual tool /
XML
Available navigation action, arguments,
animation, UP behavior, deep links ...
Make a single navigate() call and runtime
library handles automatically ...
... No more Fragment transactions!

6. Navigation Graph
A navigation graph is a blueprint of possible
navigation destinations and the actions that link
them.

7. Demo
Navigation Editor

8. The role of the Activity
A entrypoint your app
The activity manages any global navigation
(bottom nav, navigation drawer, etc), but
delegates to a NavHost for content

9. activity_main.xml

10. MainActivity.kt

11. navigation-ui
A set of static methods
to connect Navigation with
Material Design Components

12. activity_main.xml

13. MainActivity.kt

14. Navigating
With NavController

15. HomeFragment.kt

16. Safe Args
Gradle Plugin

17. HomeFragment.kt

18. Type Safe Args
Use your navigation graph as the source of truth for
arguments names and types
Generate the boilerplate

19. navigation_graph.xml

20. HomeFragment.kt

21. HelpFragment.kt

22. Deep Links

23. Two types of the deep links
Notification
App Shortcuts
AppWidgets
Actions
Slices
ImplicitExplicit
Web URLs
Custom Scheme URIs

24. Explicit Deep Links
Deep link to a specific destination in your navigation graph by its ID
With NavDeepLinkBuilder

25. ExplicitDeepLink.kt

26. Implict Deep Links
Associating destinations with one or more URIs
<deepLink app:uri=“http://www.exemple.com”>
Using<deepLink> in your navigation graph

27. navigation_graph.xml

28. AndroidManifest.xml

30. https://www.youtube.com/watch?v=8GCXtCjtg40
https://developer.android.com/jetpack/
https://developer.android.com/topic/libraries/architecture/navigation/
https://developer.android.com/jetpack/docs/getting-started
https://www.youtube.com/watch?v=r8U5Rtcr5UU
https://proandroiddev.com/android-jetpack-navigationui-a7c9f17c510e
https://github.com/googlesamples/android-sunflower
References