Auto Read OTP from SMS

Question

I am trying to Read Sms by using this method. But my application is not reading Message.

The Code i have tried yet.

Permission :

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

Activity (Main Code) :

class OtpActivity : AppCompatActivity(), View.OnClickListener {
    private var smsVerifyCatcher: SmsVerifyCatcher? = null
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_otp)
        smsVerifyCatcher = SmsVerifyCatcher(this, OnSmsCatchListener { message ->
            val code = parseCode(message)//Parse verification code
            Log.e("Code", code)
            //then you can send verification code to server
        })
        smsVerifyCatcher!!.setPhoneNumberFilter("0902249") // I passed 10 digit number here
        smsVerifyCatcher!!.setFilter("Ashish") // For extra i added Filter for name
    }
    private fun parseCode(message: String): String {
        val p = Pattern.compile("\\b\\d{4}\\b")
        val m = p.matcher(message)
        var code = ""
        while (m.find()) {
            code = m.group(0)
        }
        return code
    }
    override fun onStart() {
        super.onStart()
        smsVerifyCatcher!!.onStart()
    }

    override fun onStop() {
        super.onStop()
        smsVerifyCatcher!!.onStop()
    }
}

Answer 1

It's not a good idea because of this Reminder SMS/Call Log Policy Changes.

The recomended way is using SMS Retriever API from Google Play Services. See the Automatic SMS Verification with the SMS Retriever API.

Notice though that your server needs to send the messages following a few rules (message starts with "<#>", includes the OTP plus additional information and ends up with a hash identifying your app).