AndroidX Migration for Android developer

Introduction to new comingAndroidX libraries Anh.Tran @Android team 07/09/2018... Android JetPack a flash introduction... AndroidX - What is it?What different between Android Jetpack and

Introduction to new coming

AndroidX libraries

Anh.Tran @Android team

07/09/2018

1 Quick introduction of Android JetPack

2 AndroidX library

3 Demo

1 Android JetPack (a flash introduction)

● Google IO 2018

● https://developer.android.com/jetpack/

1 Android JetPack (a flash introduction)

AndroidX - What is it?

What different between Android Jetpack and AndroidX?

AndroidX - What is it?

What different between Android Jetpack and AndroidX?

Android Jetpack

Set of libraries, provide recommendation and tools to let you create a good app.

AndroidX

AndroidX is a library itself, which is its feature might or might not in Android Jetpack

(KTX and Slices are the AndroidX features and both also in Android Jetpack)

AndroidX = Support libraries + Refactor

Why need refactoring?

v4, v7, v13, ….

v-x, by the x, mean minimum SDK support So “v-4” support until SDK level 4.

v4 Support Library is for Android 1.6 (API level 4) Android 2.3 (API level 9) Android 4.0 (API

level 14) and higher.

v7 Support Library is for Android 2.1 (API level 7) Android 2.3 (API level 9) Android 4.0 (API

level 14) and higher.

v13 Support Library is for Android 3.2 (API level 13) and higher However, the new features in

v13 have depicted already.

https://stackoverflow.com/questions/18271429/difference-between-android-support-v7-appcom pat-and-android-support-v4

v4, v7, v13, ….

https://stackoverflow.com/questions/15109017/difference-between-android-app-fragment-and-a ndroid-support-v4-app-fragment

So

… it’s time to refactor

AndroidX ~ Android eXtension libraries

● android.* - class which are bundled with the operating system and

can have different APIs and behavior for different Android versions.

● androidx.* - Classes like AppCompatActivity or ViewModel, which

are unbundled from the operating system and ship in your apk These

libraries are written to provide a single API surface with behavior

that's as consistent as possible across Android versions.

1 no more v-4 v-7 v-13 v-14

2 Android android.* and androidx.*

3 Reset version back to `1.0.0`

How to migration to AndroidX

AS 3.2 Beta

After migration

Demo time

Let’s try with our Quoinex Android project!

Issues after migration

About versioning

Still multiple numbers of version (1.0.0, 2.0.0, …)

Still not stable

1 ‘AndroidX’ is just a refactor of support libraries and

versioning

2 Quoinex app can be migrated to ‘androidX’ with only

some issues fixes (ButterKnife, Test, …)

3 ‘AndroidX’ is still not stable for production Should

wait Google for next announcements

Thank you!