import and read csv data in android

Question

Hello im following this tutorial, but i dont know much of Kotlin, aknay.github.io can you help me making a translation to java thanks, Also i like to know if the type to csv-xlsx archives is (text/*).

package aknay.readcsv
import android.app.Activity
import android.content.Intent
import android.net.Uri
import android.os.Bundle
import android.support.v7.app.AppCompatActivity
import android.widget.Button
import android.widget.TextView
import java.io.BufferedReader
import java.io.IOException
import java.io.InputStreamReader


class MainActivity : AppCompatActivity() {

    private lateinit var mTextViewCsvResult: TextView

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
        mTextViewCsvResult = findViewById(R.id.textView_csvResult)

        findViewById<Button>(R.id.button_loadCsv)?.setOnClickListener {
            val intent = Intent(Intent.ACTION_OPEN_DOCUMENT)
            intent.addCategory(Intent.CATEGORY_OPENABLE)
            intent.type = "text/*"
            startActivityForResult(intent, READ_REQUEST_CODE)
        }`enter code here`
    }

    public override fun onActivityResult(requestCode: Int, resultCode: Int, resultData: Intent?) {
        if (requestCode == READ_REQUEST_CODE && resultCode == Activity.RESULT_OK) {
            resultData?.let { intent ->
                mTextViewCsvResult.text = readCSV(intent.data).joinToString(separator = "
")
            }
        }
    }

    @Throws(IOException::class)
    fun readCSV(uri: Uri): List<String> {
        val csvFile = contentResolver.openInputStream(uri)
        val isr = InputStreamReader(csvFile)
        return BufferedReader(isr).readLines()
    }

    companion object {
        const val READ_REQUEST_CODE = 123
    }

}

question from:https://stackoverflow.com/questions/66057482/import-and-read-csv-data-in-android

Answer 1

Waitting for answers