下面是一个使用Android Kotlin Volley库上传文件InputStream和POST参数的示例代码：

首先，确保在你的build.gradle文件中添加以下依赖项：

dependencies {
    ...
    implementation 'com.android.volley:volley:1.2.0'
}

然后，创建一个名为VolleyFileUploader.kt的新文件，并将以下代码添加到文件中：

import android.content.Context
import com.android.volley.AuthFailureError
import com.android.volley.Request
import com.android.volley.Response
import com.android.volley.toolbox.HttpHeaderParser
import com.android.volley.toolbox.JsonObjectRequest
import com.android.volley.toolbox.Volley
import org.json.JSONObject
import java.io.ByteArrayOutputStream
import java.io.DataOutputStream
import java.io.IOException
import java.io.InputStream
import java.util.HashMap
import java.util.Map

class VolleyFileUploader(private val context: Context) {

    fun uploadFile(url: String, params: Map, fileInputStream: InputStream, fileName: String, fileMimeType: String, responseListener: Response.Listener, errorListener: Response.ErrorListener) {
        val volleyMultipartRequest = object : JsonObjectRequest(Request.Method.POST, url, null, responseListener, errorListener) {

            @Throws(AuthFailureError::class)
            override fun getHeaders(): Map {
                val headers = HashMap()
                // Add any headers required for your API call
                return headers
            }

            @Throws(AuthFailureError::class)
            override fun getParams(): Map {
                return params
            }

            override fun getBodyContentType(): String {
                return "multipart/form-data; boundary=$boundary"
            }

            @Throws(IOException::class)
            override fun getBody(): ByteArray {
                val bos = ByteArrayOutputStream()
                val dos = DataOutputStream(bos)

                // Add POST parameters
                for ((key, value) in params) {
                    dos.writeBytes(twoHyphens + boundary + endOfLine)
                    dos.writeBytes("Content-Disposition: form-data; name=\"$key\"$endOfLine$endOfLine")
                    dos.writeBytes(value + endOfLine)
                }

                // Add file data
                dos.writeBytes(twoHyphens + boundary + endOfLine)
                dos.writeBytes("Content-Disposition: form-data; name=\"file\"; filename=\"$fileName\"$endOfLine")
                dos.writeBytes("Content-Type: $fileMimeType$endOfLine")
                dos.writeBytes(endOfLine)

                val buffer = ByteArray(1024)
                var bytesRead: Int
                while (fileInputStream.read(buffer).also { bytesRead = it } != -1) {
                    dos.write(buffer, 0, bytesRead)
                }

                dos.writeBytes(endOfLine)
                dos.writeBytes(twoHyphens + boundary + twoHyphens + endOfLine)

                return bos.toByteArray()
            }
        }

        val requestQueue = Volley.newRequestQueue(context)
        requestQueue.add(volleyMultipartRequest)
    }

    companion object {
        private const val boundary = "-------------RANDOM_BOUNDARY"
        private const val twoHyphens = "--"
        private const val endOfLine = "\r\n"
    }
}

现在你可以在你的Activity或Fragment中使用VolleyFileUploader类来上传文件了。以下是一个示例：

val url = "YOUR_UPLOAD_URL"
val params = HashMap()
params["param1"] = "value1"
params["param2"] = "value2"

val fileInputStream = context.contentResolver.openInputStream(fileUri) // fileUri为要上传的文件的Uri
val fileName = "example.jpg" // 文件名
val fileMimeType = "image/jpeg" // 文件类型

val volleyFileUploader = VolleyFileUploader(context)
volleyFileUploader.uploadFile(url, params, fileInputStream, fileName, fileMimeType,
    Response.Listener { response ->
        // 成功上传文件
    },
    Response.ErrorListener { error ->
        // 上传文件失败
    }
)

请确保将YOUR_UPLOAD_URL替换为你自己的上传URL，fileUri替换为你要上传的文件的Uri。另外，你可以根据你的实际需求修改params参数。

这是一个基本的示例，你可以根据你的具体需求进行修改和扩展。