【ANDROID STUDIO】 Worker Manager One Time Work Request

 package com.example.wordmanager

import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import androidx.work.OneTimeWorkRequest
import androidx.work.WorkManager
import kotlinx.android.synthetic.main.activity_main.*

class MainActivity : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
        button.setOnClickListener {
            setOneTimeWorkRequest()
        }

    }
    private fun setOneTimeWorkRequest() {
        val uploadRequest = OneTimeWorkRequest.Builder(UploadWorker::class.java)
                .build()
        WorkManager.getInstance(applicationContext)
                .enqueue(uploadRequest)
    }

}

package com.example.wordmanager

import android.content.Context
import android.util.Log
import androidx.work.Worker
import androidx.work.WorkerParameters

class UploadWorker(context: Context, params: WorkerParameters) : Worker(context,params) {
    override fun doWork(): Result {
        try {
            for (i in 0..600) {
                Log.i("MYTAG", "Uploading $i")
            }
            return Result.success()
        } catch (e: Exception) {
            return Result.failure()
        }
    }
}