Error : Type mismatch: inferred type is FirstFragment but Context was expected - kotlin

Question

I'm tring to build an app can dial ussd code on my mobile so,
i have 2 errors in my code on kotlin, how can i solve my problem?
First Error: (Type mismatch: inferred type is FirstFragment but Context was expected)
and
Second Error: (Type mismatch: inferred type is FirstFragment but Activity was expected)
Here is my complete code
package gaur.himanshu.august.tablayout.fragments
import android.content.Intent
import android.content.pm.PackageManager
import android.net.Uri
import android.os.Bundle
import androidx.fragment.app.Fragment
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import android.widget.Toast
import androidx.core.app.ActivityCompat
import gaur.himanshu.august.tablayout.MainActivity
import gaur.himanshu.august.tablayout.R
import kotlinx.android.synthetic.main.fragment_first.*
class FirstFragment : Fragment() {
val REQUEST_PHONE_CALL = 1
override fun onCreateView(
inflater: LayoutInflater, container: ViewGroup?,
savedInstanceState: Bundle?
): View? {
// Inflate the layout for this fragment
return inflater.inflate(R.layout.fragment_first, container, false)
}
override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
super.onViewCreated(view, savedInstanceState)
button.setOnClickListener {
Toast.makeText(
context,
"You Clicked the Button",
Toast.LENGTH_SHORT
).show()
if(ActivityCompat.checkSelfPermission(this, android.Manifest.permission.CALL_PHONE)
!=PackageManager.PERMISSION_GRANTED) {
ActivityCompat.requestPermissions(
this,
arrayOf(android.Manifest.permission.CALL_PHONE),
REQUEST_PHONE_CALL
)
}
else {
startCall()
}
} // END button
} // override fun onViewCreated
override fun onRequestPermissionsResult(
requestCode: Int,
permissions: Array<out String>,
grantResults: IntArray
) {
if(requestCode == REQUEST_PHONE_CALL) {
startCall()
}
//super.onRequestPermissionsResult(requestCode, permissions, grantResults)
}
private fun startCall() {
if(zaad_Merchant_SLSH.text.isNotEmpty() && merchant.text.isNotEmpty()) {
var zaadFieldINT = zaad_Merchant_SLSH.text.toString().toInt()
var phoneNumber = merchant.text.toString().toInt()
if(zaadFieldINT < 500) {
Toast.makeText(
context,
"The Value is Less than 500",
Toast.LENGTH_SHORT
).show()
}
else {
val merchantNum = "*223*$phoneNumber*$zaadFieldINT%23"
val callIntent = Intent(Intent.ACTION_CALL)
callIntent.data = Uri.parse("tel:" + merchantNum)
startActivity(callIntent)
}
}
if(zaad_Merchant_SLSH.text.isEmpty() && merchant.text.isEmpty()) {
Toast.makeText(
context,
"Labada Khaanadood way madhan yihiin",
Toast.LENGTH_SHORT
).show()
}
else if(merchant.text.isEmpty()) {
//editText.text = "Labada Khanadood way madhan yihiin"
Toast.makeText(
context,
"Khaanada Telephone Num way madhantahay",
Toast.LENGTH_SHORT
).show()
}
else if(zaad_Merchant_SLSH.text.isEmpty()) {
//editText.text = "Labada Khanadood way madhan yihiin"
Toast.makeText(
context,
"Khaanada Lacagta way madhantahay",
Toast.LENGTH_SHORT
).show()
}
} // END startcall()
}

Answer 1

The first argument to ActivityCompat.requestPermissions() must be a Context. If you were writing this code inside an Activity (which is a subclass of Context), then passing this would work just fine. But since you're in a Fragment (which is not a subclass of Context), you can't pass this.
Try passing view.context instead. Or use requireActivity() in any spot where an Activity (and not just a Context) is needed.