I wanna start to learn Rx reactive programming I know some c

Question

I wanna start to learn Rx reactive programming I know some concepts but didn t use it before 1 Could u please someone recommend me something to learn 2 someone told me that I have to learn it in java first is it true 3 also in kotlin i see rxkotlin coroutines rxAndroid I don t know what is preferred thanks in advance hearts

kioba · Answer

you are welcomed to join in < C0B8Y8BHC|rx> channel to ask any question you have Rxjava is the base library what we use RxKotlin and RxAndroid is just an extension on top of RxJava

Dominaezzz · Answer

1 Android specifically or just JVM in general 2 Nope Absolutely not 3 Coroutines

kioba · Answer

`Coroutine` is not reactive programming

Dominaezzz · Answer

What about Channels Flows and such

kioba · Answer

kioba · Answer

Flow is great don t get me wrong it is not yet stable and I am not sure what is the interoperability with java

Dominaezzz · Answer

No real java interop Sure it s not stable but it s still the Kotlin way of doing things

kioba · Answer

I would recommend also to read this book <https g co kgs eta2pp> Helped me a lot

alexsullivan114 · Answer

I don t like self marketing but this is just too perfect I recently released a book through the RayWenderlich website which is a dope website if you re looking for a source of tutorials about learning RxJava from start to finish The RW style is to have each chapter resemble a tutorial that slowly builds more and more complex stuff as you go

alexsullivan114 · Answer

alexsullivan114 · Answer

For number 3 it depends what you re trying to do If all you re trying to do is make a network call and show a list of items I d strongly consider spending some time learning about coroutines If you re actually interested in more complex use cases or reactive programming in general RxJava is super well supported by the community or if you re feeling adventurous you could check out Flow

alexsullivan114 · Answer

A lot of people in the Android ecosystem have been using RxJava as a simple threading solution those people will correctly tell you to use coroutines instead of RxJava However if you re actually looking for reactive programming or stream based programming it s not the correct comparison

kioba · Answer

yeah that is also true Raywenderlich is a great source to learn check it out you won t be disappointed slightly smiling face thumbsup for that

gildor · Answer

I would like to add tho Flow is not directly implementing Reactive Streams specification but it for sure implementation of reactive programming paradigm and honestly I don t think that to be reactive library you should be directly compatible with specification especially if you provide adapter for this as Flow does for example Observable from RxJava is not compatible directly only Flowable

gildor · Answer

2 Up to you you can use Java or Kotlin no big difference honestly 3 Doesn t make a lot of sense in general Because you mentioned completely not compatible libraries RxKotlin is just wrapper with bunch of Kotlin extensions for RxJava to make it more pleasant to use RxAndroid is just a library that provides Android Main thread scheduler for RxJava and allow to use any handler for this So real choice is RxJava or kotlinx coroutines Flow and Channels other parts just not reactive And If you really want to know learn reactive programming start from RxJava

am414 · Answer

< kioba> thanks a lot

am414 · Answer

< Dominaezzz> thanks for reply yeah 1 Android specifically and I prefer kotlin

am414 · Answer

< alexsullivan114> thanks a lot man I wanna learn about Rx just to know about it I don t have a case to solve just for level up my experiance but i prefer kotlin cuz i use it more than java these days I have a silly question smile Can I use rxjava in android kotlin project thanks

gildor · Answer

Sure RxJava is completely fine for Kotlin and Android just also use RxKotlin to handle some SAM issues of Java interop and use RxAndroid to have Scheduler for Android main thread

alexsullivan114 · Answer

< am414> That s not a silly quesiton at all There s a lot of confusing names being thrown around here The short answer is absolutely The above book is 100 in Kotlin and it s all abou tusing Rx Java The longer answer is that the interop between Kotlin and Java is so good that there s no real need to rewrite Java libraries in Kotlin RxJava is a big library so rewriting it would be a huge endeavor and not worth the effort To further complicate things there is a RxKotlin library But it actually just provides a few convenient Kotlin wrapper methods for RxJava it s not at all a total rewrite of RxJava RxKotlin is a very slim library whose sole purpose is to add a few nice Kotlin extensions wrapper functions to the RxJava library To add another layer of nonsense there s also a RxAndroid library And it is the simplest of all it really only offers a `Scheduler` which is an RxJava concept that interacts with Androids main thread The naming of these three libraries is super duper confusing To sum it up they all revolve around RxJava RxKotlin provides a few nice extensions wrappers to RxJava RxAndroid provides access tot he Android main thread

am414 · Answer

< gildor> thanks a lot for ur help i really appreciate ur help have a nice day hearts

am414 · Answer

< alexsullivan114> thanks a lot for ur time and the long answer I was thought that rxjava is just for java so maybe rxkotlin for kotlin joy I really appreciate ur help have a nice day hearts

alexsullivan114 · Answer

No problem let me know if you have any other questions