Introduction to AutoDispose

If you use RxLifecycle, maybe now is the time to switch from it to AutoDispose.

"AutoDispose is an RxJava 2 tool for automatically binding the execution of RxJava 2 streams to a provided scope via disposal/cancellation."

- https://github.com/uber/AutoDispose
- http://blog.danlew.net/2017/08/02/why-not-rxlifecycle

Transcript

1. AutoDispose
   shaunkawano
   

   View Slide

2. https://github.com/uber/AutoDispose#autodispose
   AutoDispose
   • From Uber Technologies
   • “RxJava 2 tool for automatically binding the
   execution of RxJava 2 streams to a provided
   scope“
   • Architecturally better version of RxLifecycle
   

   View Slide

3. Handling Streams
   • CompositeDisposable
   • RxLifecycle
   • No Reactive Extensions
   

   View Slide

4. Handling Streams
   • CompositeDisposable
   • RxLifecycle
   • No Reactive Extensions
   

   View Slide

5. CompositeDisposable
   private val disposables = CompositeDisposable()
   override fun onCreate(savedInstanceState: Bundle?) {
   super.onCreate(savedInstanceState)
   ...
   myObservable.doStuff()
   .subscribeBy { ... }
   .addTo(disposables)
   }
   override fun onDestroy() {
   disposables.dispose()
   super.onDestroy()
   }
   

   View Slide

6. CompositeDisposable
   private val disposables = CompositeDisposable()
   override fun onCreate(savedInstanceState: Bundle?) {
   super.onCreate(savedInstanceState)
   ...
   myObservable.doStuff()
   .subscribeBy { ... }
   .addTo(disposables)
   }
   override fun onDestroy() {
   disposables.dispose()
   super.onDestroy()
   }
   

   View Slide

7. CompositeDisposable
   private val disposables = CompositeDisposable()
   override fun onCreate(savedInstanceState: Bundle?) {
   super.onCreate(savedInstanceState)
   ...
   myObservable.doStuff()
   .subscribeBy { ... }
   .addTo(disposables)
   }
   override fun onDestroy() {
   disposables.dispose()
   super.onDestroy()
   }
   

   View Slide

8. CompositeDisposable
   private val disposables = CompositeDisposable()
   override fun onCreate(savedInstanceState: Bundle?) {
   super.onCreate(savedInstanceState)
   ...
   myObservable.doStuff()
   .subscribeBy { ... }
   .addTo(disposables)
   }
   override fun onDestroy() {
   disposables.dispose()
   super.onDestroy()
   }
   

   View Slide

9. RxLifecycle
   override fun onCreate(savedInstanceState: Bundle?) {
   super.onCreate(savedInstanceState)
   ...
   myObservable
   .bindToLifecycle(this, DESTROY)
   .subscribe { }
   }
   

   View Slide

10. RxLifecycle
    override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    ...
    myObservable
    .bindToLifecycle(this, DESTROY)
    .subscribe { }
    }
    

    View Slide

11. UnSubscription
    https://github.com/trello/RxLifecycle#unsubscription
    

    View Slide

12. UnSubscription
    https://github.com/trello/RxLifecycle#unsubscription
    

    View Slide

13. http://blog.danlew.net/2017/08/02/why-not-rxlifecycle
    

    View Slide

14. http://blog.danlew.net/2017/08/02/why-not-rxlifecycle
    

    View Slide

15. https://github.com/uber/AutoDispose#autodispose
    AutoDispose
    implementation 'com.uber.autodispose:autodispose:x.y.z'
    // Java
    myObservable
    .doStuff()
    .as(autoDisposable(this)) // The magic
    .subscribe(s -> ...);
    

    View Slide

16. AutoDispose
    autodispose-android
    com.uber.autodispose:
    

    View Slide

17. AutoDispose
    autodispose-android
    com.uber.autodispose:
    autodispose-android-archcomponents
    

    View Slide

18. AutoDispose
    autodispose-android
    com.uber.autodispose:
    autodispose-android-archcomponents
    autodispose-rxlifecycle
    

    View Slide

19. AutoDispose Kotlin
    autodispose-android-kotlin
    com.uber.autodispose:
    autodispose-android-archcomponents-kotlin
    

    View Slide

20. AutoDispose Kotlin
    autodispose-android-kotlin
    com.uber.autodispose:
    autodispose-android-archcomponents-kotlin
    

    View Slide

21. LifecycleOwner
    

    View Slide

22. Extension Functions
    @CheckReturnValue
    inline fun LifecycleOwner.scope(): LifecycleScopeProvider =
    AndroidLifecycleScopeProvider.from(this)
    @CheckReturnValue
    inline fun LifecycleOwner.scope(untilEvent: Lifecycle.Event):
    LifecycleScopeProvider
    = AndroidLifecycleScopeProvider.from(this, untilEvent)
    // autodispose-android-archcomponents-kotlin
    

    View Slide

23. AutoDispose with Arch Lifecycle
    protected val scope: LifecycleScopeProvider by lazy {
    AndroidLifecycleScopeProvider.from(this) // or scope()
    })
    …
    store.myState.autoDisposable(scope).subscribeBy(onNext = { … })
    // Activity.kt
    

    View Slide

24. AutoDispose with Arch Lifecycle
    protected val scope: LifecycleScopeProvider by lazy {
    AndroidLifecycleScopeProvider.from(this) // or scope()
    })
    …
    store.myState.autoDisposable(scope).subscribeBy(onNext = { … })
    // Activity.kt
    

    View Slide

25. AutoDispose
    shaunkawano
    Thank you!
    

    View Slide