How to get Json Response in Arraylist from List<Item> using RxJava and Kotlin

Question

Facing Problem on getting Response in ArrayList.

I have following Respose on String value

 var res_message: String = ""
 res_message = "${result.vehicletypes} "

Getting below Value on this String

     [VehicleType(_id=1, vehicleType=Hatchback, __v=0), 
      VehicleType(_id=2, vehicleType=Maruti, __v=0), 
      VehicleType(_id=3, vehicleType=Honda, __v=0), 
      VehicleType(_id=4, vehicleType=Bike, __v=0)]

Retrofit Result is

 vehicletypes = {ArrayList@6055}  size = 4
 0 = {Model$VehicleType@6058} "VehicleType(_id=1, 
vehicleType=Hatchback, __v=0)"
 1 = {Model$VehicleType@6059} "VehicleType(_id=2, 
 vehicleType=Maruti, __v=0)"
  2 = {Model$VehicleType@6060} "VehicleType(_id=3, 
 vehicleType=Honda, __v=0)"
  3 = {Model$VehicleType@6061} "VehicleType(_id=4, 
  vehicleType=Bike, __v=0)"

Below Code snippest sending request to API.

            disposable = apiServices.getVehicle(token)
            .subscribeOn(Schedulers.io())
            .observeOn(AndroidSchedulers.mainThread())
            .subscribe(
                    { result ->


                        res_message = "${result.vehicletypes} "
                        Log.d("Type==", res_message)
                    },
                    { error ->
                        res_message = "${error.message}"
                        // validateToken()
                    }
            )

Model Class

  data class Vehicles(val success: Boolean, val vehicletypes: List<VehicleType>, val message: String)
  data class VehicleType(val _id: String, val vehicleType: String, val __v: String)

I want to get this value on Arralist VehicleType List on below vehicleListArray

   private var vehicleListArray: ArrayList<Model.VehicleType>? = null

How we can achieve this. Thanks in advance.

What is return type of fun getPeople() method in apiService definition? — muminers
– muminers, Commented Mar 9, 2018 at 7:19

muminers · Accepted Answer · 2018-03-09 07:42:11Z

1

Assuming that what you are trying to parse is a response from a service that is able to send you propper format for lists (eg Json) than Retrofit can handle parsing lists with ease.

In your apiService definition:

fun getPeople(token: Whatever): Observable<List<VehicleType>>

And if you don't have it already:

Retrofit.Builder()
   .addConverterFactory(GsonConverterFactory.create(gson))

edited Mar 9, 2018 at 7:42

answered Mar 9, 2018 at 7:23

muminers

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5 Comments

Nitin Karande Over a year ago

Thank you @muminers I will try.

reixa Over a year ago

I would use Flowable instead of Observable but the answer it´s Ok! :thumbsup:

muminers Over a year ago

@axierjhtjz Good you've pointed it out. Acctually it isn't easy to decide in my opinion. Here is piece of doc that covers this subject: github.com/ReactiveX/RxJava/wiki/…

reixa Over a year ago

Yep, not easy to make a pick, that´s why I said "I would use". Good read by the way.

Viktor Yakunin Over a year ago

@axierjhtjz why not Single, are you expect more values? for simple POST it's ok to use Completable

Vishal Yadav · Accepted Answer · 2018-03-09 13:04:40Z

0

I got solution I have to handle Respose as below code snippet.

private fun getVehicleType() { 
    disposable?.add(apiServices.getVehicle(token)
            .observeOn(AndroidSchedulers.mainThread())
            .subscribeOn(Schedulers.io())
            .subscribe(this::handleResponse, this::handleError))
}

private fun handleResponse(vehicles: Model.Vehicles) {
    VehiclesArrayList = ArrayList(vehicles.vehicletypes)
    Log.d("type==","n--"+VehiclesArrayList )
    mAdapter = DataAdapter(VehiclesArrayList !!, this)
    v_android_list.adapter = mAdapter
}

private fun handleError(error: Throwable) {
    Log.d("type", error.localizedMessage)
    Toast.makeText(context, "Error ${error.localizedMessage}", Toast.LENGTH_SHORT).show()
}

edited Mar 9, 2018 at 13:04

Vishal Yadav

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answered Mar 9, 2018 at 8:39

Nitin Karande

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