RxJava bindings for Kotlin programming language
RxKotlin is open sourced and available under the Apache License, Version 2.0
Questions tagged [rx-kotlin]
238 questions
7
votes
1 answer
Moving Window With Kotlin Flow
I am trying to create a moving window of data using Kotlin Flows.
It can be achieved in RxKotlin using a buffer, but buffer is not the same using Flows.
RxKotlin has a buffer operator, periodically gathers items emitted by an Observable into bundles…
Sprout
- 630
- 1
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7
votes
3 answers
RxJava Maybe: Any neat way to handle Empty case?
I am stuck at this problem, which should be fairly simple. I need subscriber to execute a code block when the Maybe has completed as an Empty Maybe. I found that
we can pass default Maybe value or use switchIfEmpty but I feel both are hacky.
Also…
Mangat Rai Modi
- 5,397
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- 75
7
votes
1 answer
RxJava 2 equivalent to isUnsubscribed
I've been working through the examples in the book Reactive Programming with RxJava, which is targeted at version 1 not 2. An introduction to infinite streams has the following example (and notes there are better ways to deal with the…
junglie85
- 1,243
- 10
- 30
7
votes
6 answers
Cant 'observeOn' main thread with RxKotlin
I'm trying to observe observable on main thread by using:
// Kotlin Code
Observable
.observeOn(AndroidSchedulers.mainThread())
but I'm getting following error:
Type Mismatch:
Required: rx.Scheduler!
Found:…
Nathan Horrigan
- 763
- 1
- 9
- 20
6
votes
3 answers
Simple HTTP request example in Android using Kotlin
I am new to Android development with Kotlin and I am struggling on finding any useful documentation on how to create a simple GET and POST requests with the best current practices as possible. I am coming from an Angular development and there we…
Gregor A
- 217
- 5
- 16
6
votes
3 answers
RxJava2. Execute a request for every item in a list
I have a list List
FileModel is just a class contains id: Int
id - is ID of photo file I need to fetch and cast to Bitmap
I have a request:
fun getFile(fileId: Int): Single
This request returns ResponseBody which we can…
xskit
- 421
- 1
- 8
- 20
6
votes
2 answers
How can I convert this rxjava/rxkotlin flatMap into lambda expression?
Observable.just(1)
.flatMap(object : Function> {
override fun apply(integer: Int): Observable {
return Observable.just(integer * 10)
}
})
…
s-hunter
- 24,172
- 16
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- 130
6
votes
1 answer
Chaining multiple calls RxJava, Room and Retrofit
I am using RxJava/Kotlin with Room and Retrofit. I am sure I'm not making something write as I just started learning RxJava. The scenario is that I make a call to check if there are favorite records in DB and get them in a List, fetch data from API…
Esteban
- 667
- 9
- 22
6
votes
1 answer
RxAndroid - retry observable on click
I'm using rxAndroid and rxKotlin in my Android app to handle network requests asynchronously. Now I would like to retry a failed network request only after click on Snackbar button.
My code now:
val citiesService =…
Michael
- 187
- 1
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- 7
6
votes
1 answer
Behavior with Kotlin Higher-Order Functions and Single-method interfaces?
I was having some issues using RxJava and Kotlin earlier. I made some interesting discoveries which I'm still puzzled about.
There is the simple Func1 interface in RxJava
public interface Func1 extends Function {
R call(T t);
}
I was…
tmn
- 11,121
- 15
- 56
- 112
5
votes
2 answers
How to chain "Single - Completeable - Completable" in rxkotlin?
I am a beginner with rxjava/rxkotlin/rxandroid.
I need to deal with three diferent async-calls in a sequence.
The problem is that the first step returns a Single, the second a Completableand the third again a Completable.
(Single ->…
Appyx
- 1,145
- 1
- 12
- 21
4
votes
1 answer
Unit Test : Observer onChanged should be called twice instead of once
Why do I get different results when unit testing my ViewModel?
I got two tests. When I launch each test individually that's ok but when I launch all tests in a row I got an error.
It's a ViewModel that change state each time I got a return from an…
Ackbryy
- 41
- 1
- 3
4
votes
2 answers
How to add Body in Url in Volley request in Kotlin?
Here is my Code that for Volley Request:-
val searchRequest = object : JsonArrayRequest(Request.Method.GET,url,
Response.Listener { response ->
val result = response.toString()
},
…
shivam Kapoor
- 105
- 2
- 3
- 9
4
votes
2 answers
How to parse below Json data in Kotlin?
I need to parse this information-
[
{
"artist": "12",
"image": "23"
},
{
"video_id": "12",
"video_title": "23"
},
{
"video_id": "12",
"video_title": "23"
},
{
"video_id": "12",
"video_title": "23"
},
{
"video_id":…
shivam Kapoor
- 105
- 2
- 3
- 9
4
votes
2 answers
Converting loop with condition into RxJava stream
I have code that does blocking operation in while loop (downloads some data from a server). Client does not know how many items are going to be returned in each step. Loop breaks when N items are downloaded.
val n = 10
val list =…
x2bool
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