How to make multiple request and wait until data is come from all the requests in retrofit 2.0 - android

Question

current code:

Retrofit retrofit = new Retrofit.Builder()
                  .baseUrl(Constant.BASEURL)
                  .addConverterFactory(GsonConverterFac         


        

Answer 1

for anybody checking this question. This works for me (Kotlin)

fun manyRequestsNetworkCall(requests: ArrayList>, activity: Activity){
    Observable.zip(requests){results ->
        activity.runOnUiThread(Runnable {
           //do something with those results
           // runOnUiThread solves the problem cannot do something on background thread
        })
      // observeOn and subscribeOn solvesthe problem of NetworkOnMainThreadException
    }.observeOn(AndroidSchedulers.mainThread())
        .subscribeOn(Schedulers.io())
        .doOnSubscribe { userWorkdysResponse.value = Response.loading((requestType)) }
        .subscribe ({
           // do something when all the requests are done
        },{
           // do something if there is an error
        })
}