SMS Read And Recive / SMS Permission / Kotlin/android

SMSPermission

MainActivity.kt:

package com.example.smspermission

import android.Manifest
import android.content.pm.PackageManager
import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.widget.Button
import android.widget.Toast
import androidx.activity.result.contract.ActivityResultContracts

class MainActivity : AppCompatActivity() {
    lateinit var btn:Button
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
        init()
    }
    fun init(){
        bindViews()
        btn.setOnClickListener {
            if (checkSelfPermission(Manifest.permission.READ_SMS) == PackageManager.PERMISSION_GRANTED){
                   requestPermissionLauncher.launch(Manifest.permission.READ_SMS)
            }
            if (checkSelfPermission(Manifest.permission.RECEIVE_SMS) == PackageManager.PERMISSION_GRANTED){
                requestPermissionLauncher.launch(Manifest.permission.RECEIVE_SMS)
            }
        }
    }

    val requestPermissionLauncher =
        registerForActivityResult(
            ActivityResultContracts.RequestPermission()
        ) { isGranted: Boolean ->
            if (isGranted) {
                Toast.makeText(this,"permission GRABTED",Toast.LENGTH_LONG).show()
            } else {
                Toast.makeText(this,"permission deind",Toast.LENGTH_LONG).show()
            }
        }

    fun bindViews(){
        btn = findViewById(R.id.sms_perm_btn)
    }
}

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Create a Brodcast Receiver :

package com.example.smspermission

import android.content.BroadcastReceiver
import android.content.Context
import android.content.Intent
import android.os.Build
import android.os.Bundle
import android.telephony.SmsMessage
import android.widget.Toast

class MySMSReciver : BroadcastReceiver() {

    override fun onReceive(context: Context, intent: Intent) {
        val bundle = intent.extras as Bundle
        val format = bundle.getString("format")
        val pdus = bundle.get("pdus") as Array<*>
        if (pdus != null) {
            var smsMessages = ""
            var messages = mutableListOf<SmsMessage>()
            var index = 0
            pdus.forEach {
                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                    messages.add(SmsMessage.createFromPdu(it as ByteArray?, format))
                } else {
                    messages.add(SmsMessage.createFromPdu(it as ByteArray?))
                }
                smsMessages += "SMS From ${messages[index].originatingAddress} : " + "${messages[index].messageBody}\n"

                index++
            }
            Toast.makeText(context,smsMessages,Toast.LENGTH_LONG).show()
        }
    }
}


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android Manifest:

<uses-feature
        android:name="android.hardware.telephony"
        android:required="false" />

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