Multipart used retrofit2

Multipart send from retrofit2

1. ApiService

interface ApiService {     @Multipart     @POST("your_upload_url")     fun uploadMultipleFiles(             @Part file1: MultipartBody.Part?,             @Part file2: MultipartBody.Part?,             @Part file3: MultipartBody.Part?,             @Part file4: MultipartBody.Part?)             : Call<FileUploadResult> }

2. ApiFactory (result xml parsing)

fun createXmlForImageUpload(): SLApiService {         val interceptor = HttpLoggingInterceptor()         interceptor.setLevel(HttpLoggingInterceptor.Level.BODY)         val client:OkHttpClient  = OkHttpClient.Builder()                 .connectTimeout(180,TimeUnit.SECONDS) //timeout setting                 .readTimeout(180,TimeUnit.SECONDS) //timeout setting                 .writeTimeout(180,TimeUnit.SECONDS) //timeout setting                 .addInterceptor(interceptor).build() // log interceptor         val retrofit = Retrofit.Builder()                 .baseUrl("your api base url")                 .addCallAdapterFactory(RxJava2CallAdapterFactory.create())                 .addConverterFactory(SimpleXmlConverterFactory.create()) // xml parsing factory                 .client(client)                 .build()         return retrofit.create(ApiService::class.java)     }

3. used Api

private fun uploadImage() {         val apiService = SLApiFactory.createXmlForImageUpload()         var image1:MultipartBody.Part? = null         var image2:MultipartBody.Part? = null         var image3:MultipartBody.Part? = null         var image4:MultipartBody.Part? = null         if (SelectImageData.mGridItemList.size > 0) {             image1 = prepareFilePart("image1",EditorUtil.makeMiniPath(SelectImageData.mGridItemList.get(0),this@SendImageActivity))         }         if (SelectImageData.mGridItemList.size > 1) {             image2 = prepareFilePart("image2",EditorUtil.makeMiniPath(SelectImageData.mGridItemList.get(1),this@SendImageActivity))         }         if (SelectImageData.mGridItemList.size > 2) {             image3 = prepareFilePart("image3",EditorUtil.makeMiniPath(SelectImageData.mGridItemList.get(2),this@SendImageActivity))         }         if (SelectImageData.mGridItemList.size > 3) {             image4 = prepareFilePart("image4",EditorUtil.makeMiniPath(SelectImageData.mGridItemList.get(3),this@SendImageActivity))         }         apiService.uploadMultipleFiles(image1,image2,image3,image4).enqueue(object:Callback<FileUploadResult>{             override fun onFailure(call: Call<FileUploadResult>?, t: Throwable?) {                              }             override fun onResponse(call: Call<FileUploadResult>?, response: Response<FileUploadResult>?) {                              }         })     }