You should use sms retriever api for reading otp messages. Here is how you can do that.
You need below 2 dependencies for sms retrieval code
implementation 'com.google.android.gms:play-services-auth:17.0.0'
implementation 'com.google.android.gms:play-services-auth-api-phone:17.1.0'
Define few variables like this in your activity/fragment
private val SMS_CONSENT_REQUEST = 2
private lateinit var smsVerificationReceiver: BroadcastReceiver
In your onCreate() method start SMS retriever
SmsRetriever.getClient(this).startSmsUserConsent(null)
smsReceiver()
val intentFilter = IntentFilter(SmsRetriever.SMS_RETRIEVED_ACTION)
registerReceiver(smsVerificationReceiver, intentFilter)
Below is the method for broadcast receiver
private fun smsReceiver() {
smsVerificationReceiver = object : BroadcastReceiver() {
override fun onReceive(context: Context, intent: Intent) {
if (SmsRetriever.SMS_RETRIEVED_ACTION == intent.action) {
val extras = intent.extras
val smsRetrieverStatus = extras?.get(SmsRetriever.EXTRA_STATUS) as Status
when (smsRetrieverStatus.statusCode) {
CommonStatusCodes.SUCCESS -> {
// Get consent intent
val consentIntent =
extras.getParcelable<Intent>(SmsRetriever.EXTRA_CONSENT_INTENT)
try {
// Start activity to show consent dialog to user, activity must be started in
// 5 minutes, otherwise you'll receive another TIMEOUT intent
startActivityForResult(consentIntent, SMS_CONSENT_REQUEST)
} catch (e: ActivityNotFoundException) {
// Handle the exception ...
}
}
CommonStatusCodes.TIMEOUT -> {
// Time out occurred, handle the error.
}
}
}
}
}
}
And then in onActivityResult() you can get the verification code
public override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
super.onActivityResult(requestCode, resultCode, data)
when (requestCode) {
// ...
SMS_CONSENT_REQUEST ->
// Obtain the phone number from the result
if (resultCode == Activity.RESULT_OK && data != null) {
// Get SMS message content
val message = data.getStringExtra(SmsRetriever.EXTRA_SMS_MESSAGE)
// Extract one-time code from the message and complete verification
// `message` contains the entire text of the SMS message, so you will need
// to parse the string.
val oneTimeCode = parseOneTimeCode(message) // define this function
et_otp.setText(oneTimeCode.toString())
// send one time code to the server
} else {
// Consent denied. User can type OTC manually.
}
}
}
Also don't forget to unregister receiver in onDestroy() method
unregisterReceiver(smsVerificationReceiver)
