Kotlin: App not asking user for permissions

Question

I am creating an Android application that reads a user's SMS messages. I first check whether the user has granted permission for me to read the SMS messages with the if conditional. I have verified that my test phone has not granted access to the app to read the SMS messages, as the print statement is executed. However, the requestPermissions method is not triggered (there is no popup asking to grant permission to read the SMS messages). I suspect I might be using the wrong permission code or the wrong method to begin with. I have included the following permission in my Manifest.xml file:

<uses-permission android:name="android.permission.SEND_SMS"/>

Below is my Kotlin code:

// See if the user has not granted permission to read his or her text messages
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.READ_SMS) == PackageManager.PERMISSION_DENIED) {
    // Request the user to grant permission to read SMS messages
    ActivityCompat.requestPermissions(this, arrayOf(Manifest.permission.READ_SMS), 2);
    System.out.println("Permission Denied")
}

Answer 1

In AndroidManifest.xml add READ_SMS permission.

Use

<uses-permission android:name="android.permission.READ_SMS"/>

Instead of

<uses-permission android:name="android.permission.SEND_SMS"/>

Answer 2

As it is mentioned in comments, You have declared SEND_SMS permission in Manifest.xml file and requesting READ_SMS permission dynamically(runtime).

Also it is not recommended to use this permission unless app acts as default messaging app. Please go through documentation Manifest.permission.READ_SMS which states following

This is a hard restricted permission which cannot be held by an app until the installer on record whitelists the permission. For more details see PackageInstaller.SessionParams.setWhitelistedRestrictedPermissions(Set)