RxKotlin zip inside flatmap

Question

This is my code template

getLastMessageSingle()
.flatmap(
    message->
    if(message.image==null)
        Single.Just(message)
    else
        Single.zip(t1,t2,BiFunction<String,String,String>{
            s1,s2->
          //body sets data to message

          message
        })
)
//subscribe part

I found that Single.Just will execute but zip part is never executed. Am i doing any thing wrong or flat function does not support zip in it.

Any help will be appreciated thanks.

Solution:

It was my mistake second single t2 did not produce a response.

Did you put a breakpoint and debug it? It’s not clear what you’re trying to do here. — Martin Marconcini, Apr 04 '18 at 06:23
The code you posted is not "complete" as in https://stackoverflow.com/help/mcve — arekolek, Apr 04 '18 at 06:51

score 0 · Answer 1 · answered Apr 04 '18 at 06:40

I had a similar problem and i didn't understand the reason. The strange part is that when you use zip, only the last line which return a value is called!!! All the lines before that will not execute.

So i make a model and fill it with the responses and return it in last line and do all the logic part in my subscribe.

score 0 · Answer 2 · answered Apr 04 '18 at 06:54

0

Your two functions must give some response for zip to be produce a response.

answered Apr 04 '18 at 06:54

Prajwal Maharjan

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RxKotlin zip inside flatmap

2 Answers2