Adding csv file as input in my tflite model in Android Studio

[Jay_Bhie_Santos]

Hello!
I am trying to use a csv file as a new input for my tflite model in Android Studio. To get the data, I download it using google drive using the code below:
package com.example.ui2

import android.Manifest
import android.app.Activity
import android.app.DownloadManager
import android.content.Intent
import android.content.pm.PackageManager
import android.net.Uri
import android.os.Bundle
import android.os.Environment
import android.widget.Button
import android.widget.TextView
import androidx.core.app.ActivityCompat
import com.example.ui2.ml.IrradWinter
import com.google.android.gms.auth.api.signin.GoogleSignIn
import com.google.android.gms.auth.api.signin.GoogleSignInAccount
import com.google.android.gms.auth.api.signin.GoogleSignInClient
import com.google.android.gms.auth.api.signin.GoogleSignInOptions
import com.google.android.gms.common.api.Scope
import com.google.api.client.extensions.android.http.AndroidHttp
import com.google.api.client.googleapis.extensions.android.gms.auth.GoogleAccountCredential
import com.google.api.client.json.gson.GsonFactory
import com.google.api.services.drive.Drive
import com.google.api.services.drive.DriveScopes
import kotlinx.android.synthetic.main.activity_main.*
import org.tensorflow.lite.DataType
import org.tensorflow.lite.support.tensorbuffer.TensorBuffer
import java.nio.ByteBuffer


class MainActivity : Activity(){
    var privateclient: GoogleSignInClient? = null
    var googleDriveServiceFunction: GoogleDriveServiceFunction? = null
    private val PICK_IMAGE_FROM_GALLERY_REQUEST_CODE = 300
    private var btnChooseFile: Button? = null
    private var btnSearchGD: Button? = null
    private var btnCreateFolder: Button? = null




    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
        button.setOnClickListener{
            download("https://drive.google.com/drive/u/0/folders/1aBy0WtyaETkfD3YxZo73iQaFa2aGzwY8")
        }
        requestStoragePremission()
        requestSignIn()
        getforcast.setOnClickListener{

            val model = IrradWinter.newInstance(this)


            val capacity = 4*24*5
            val byteBuffer: ByteBuffer = ByteBuffer.allocateDirect(capacity)
            val inputFeature0 = TensorBuffer.createFixedSize(intArrayOf(1, 24, 5), DataType.FLOAT32)
            inputFeature0.loadBuffer(byteBuffer)

            val outputs = model.process(inputFeature0)
            val outputFeature0 = outputs.outputFeature0AsTensorBuffer
            val tv: TextView = findViewById(R.id.getforcast)
            val ans = (outputFeature0.getFloatValue(0))
            tv.setText(ans.toString())
        }
        }



private fun requestSignIn() {
        val signInOptions = GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
            .requestEmail()
            .requestScopes(
                Scope(DriveScopes.DRIVE_FILE),
                Scope(DriveScopes.DRIVE_APPDATA),
                Scope(DriveScopes.DRIVE)
            )
            .build()
        privateclient = GoogleSignIn.getClient(this, signInOptions)
        startActivityForResult(privateclient!!.signInIntent, REQUEST_SIGNIN_CODE)
    }

    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
        super.onActivityResult(requestCode, resultCode, data)
        if (requestCode == REQUEST_SIGNIN_CODE && resultCode == RESULT_OK) {
            handleSignInIntent(data)
        }
    }

    private fun handleSignInIntent(data: Intent?) {
        GoogleSignIn.getSignedInAccountFromIntent(data)
            .addOnSuccessListener { googleSignInAccount: GoogleSignInAccount ->
                val credential = GoogleAccountCredential
                    .usingOAuth2(this, setOf(DriveScopes.DRIVE_FILE))
                credential.selectedAccount = googleSignInAccount.account
                drive(credential)
            }
            .addOnFailureListener { e: Exception -> e.printStackTrace() }
    }

    private fun drive(credential: GoogleAccountCredential?) {
        val googleDriveService = Drive.Builder(
            AndroidHttp.newCompatibleTransport(),
            GsonFactory(),
            credential
        )
            .setApplicationName("Appname")
            .build()
        googleDriveServiceFunction = GoogleDriveServiceFunction(googleDriveService)
    }

    companion object {
        private const val REQUEST_SIGNIN_CODE = 400
    }

    private fun requestStoragePremission() {
        if (ActivityCompat.checkSelfPermission(this, Manifest.permission.READ_EXTERNAL_STORAGE)
            != PackageManager.PERMISSION_GRANTED
        ) {
            ActivityCompat.requestPermissions(
                this,
                arrayOf(Manifest.permission.READ_EXTERNAL_STORAGE),
                1
            )
        }
    }
    private fun download(url: String?) {
        val request = DownloadManager.Request(Uri.parse(url))
        request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED)
        request.setDestinationInExternalFilesDir(this, Environment.DIRECTORY_DOCUMENTS, "winter4city.csv")
        request.allowScanningByMediaScanner()
        val downloadManager = getSystemService(DOWNLOAD_SERVICE) as DownloadManager
        downloadManager.enqueue(request)
    }
}

And this is my code that I got after I import the tflite in android studio: (it is in kotlin)

val model = Irrad5autumn.newInstance(context)

// Creates inputs for reference.
val inputFeature0 = TensorBuffer.createFixedSize(intArrayOf(1, 24, 5), DataType.FLOAT32)
inputFeature0.loadBuffer(byteBuffer)

// Runs model inference and gets result.
val outputs = model.process(inputFeature0)
val outputFeature0 = outputs.outputFeature0AsTensorBuffer

// Releases model resources if no longer used.
model.close()

How can I change the input from the file that I have downloaded in google drive?