20180524 Android Taipei : RxJava Threading
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This document discusses reactive programming and multi-threading in Android. It introduces the need for threads to avoid UI blocking. It then discusses common threading problems like progress updates and dependencies. It presents solutions from Google like AsyncTask and Handler/Looper as well as Java utilities. It also discusses deferred-promise patterns from libraries like Bolts and RxJava concepts like explicit execution and cancellation. It advocates for RxJava as a way to more easily manage threads and transformations with fewer side effects.
20180524 Android Taipei : RxJava Threading
- 1. 反應式編程起⼿手式-多執⾏行行緒的逆襲 Android Developer - PicCollage Prada
- 2. Why we need Thread? https://en.wikipedia.org/wiki/Thread_(computing)
- 4. If you do it wrong. System will kill you
- 6. Threading Problems report the upload progress to UI
- 7. Threading Problems Threads has dependency relationship
- 9. Solution from Google - AsyncTask
- 10. Solution from Google - Handler/Looper
- 11. Solution from Java import java.util.concurrent.* https://www.goodreads.com/book/show/127932.Java_Concurrency_in_Practice BlockingQueue Future<T> Callable<T> ThreadPoolExecutor ConcurrentHashMap<K,V> CountDownLatch
- 13. Deferred-Promise Pattern Bolts-Framework / jDeferred https://github.com/jdeferred/jdeferred https://github.com/BoltsFramework
- 14. We want more!
- 15. https://youtu.be/XLH2v9deew0?t=4m51s Asynchronous Ideas 1. Explicit execution 2. Easy thread management 3. Easily transformable 4. As few side effect as possible 5. Cancelation 6. Traffic Control
- 17. Easy Thread Management AsyncTask How many background threads for uploading photos? RxJava
- 19. As few side effect as possible <- local storage operation <- networking operation
- 20. As few side effect as possible AsyncTask RxJava
- 22. Cancelation
- 25. Traffic Control How to implement it in Java with Threads? https://www.geeksforgeeks.org/producer-consumer-solution-using-threads-java/
- 26. Traffic Control in RxJava2
- 27. Take away RxJava Android Framework Code Complexity RxJava Android Framework Learning Curve if your problem is already complicated
- 29. Reference Intro to RxJava/ Christina Lee https://www.youtube.com/watch?v=XLH2v9deew0
- 30. https://medium.com/@pradabear/deferred-promise-e957bcd235a2 Threading Problems PicCollage High Resolution Capturing TODO PicCollage Capturing Video