Agfdhyk

I am new to Android development. I am not getting OTP message from Fire base but if I enter the code manually then it works. I am not sure why I am not getting text message. Your help is highly appreciated. I am not sure whether I am doing correctly sendVerificationcode method correctly or not.

Steps Completed:
1) I added GSON file to app directory
2) I added test phone number in the firebase console
3) I added SHA1 code to fire base
4) I added SMS permission in the Android manifest file.
5) I enabled firebase authentication in Android studio
6) I tried different phone numbers too

VerifyPhoneActivity.java

public class VerifyPhoneActivity extends AppCompatActivity {





    private String verificationId;

    private FirebaseAuth mAuth;

    private ProgressBar progressBar;

    private EditText editText;



    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_verify_phone);



        mAuth = FirebaseAuth.getInstance();



        progressBar = findViewById(R.id.progressbar);

        editText = findViewById(R.id.editTextCode);



        String phonenumber = getIntent().getStringExtra("phonenumber");

        sendVerificationCode(phonenumber);



        findViewById(R.id.buttonSignIn).setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View v) {



                String code = editText.getText().toString().trim();



                if (code.isEmpty() || code.length() < 6) {



                    editText.setError("Enter code...");

                    editText.requestFocus();

                    return;

                }

              verifyCode(code);

            }

        });



    }



   private void verifyCode(String code) {

    PhoneAuthCredential credential = PhoneAuthProvider.getCredential(verificationId, code);

    signInWithCredential(credential);

 }







    private void signInWithCredential(PhoneAuthCredential credential) {

  // private void signInWithCredential(PhoneAuthCredential) {

        mAuth.signInWithCredential(credential)

                .addOnCompleteListener(new OnCompleteListener<AuthResult>() {

                    @Override

                    public void onComplete(@NonNull Task<AuthResult> task) {

                        if (task.isSuccessful()) {



                            Intent intent = new Intent(VerifyPhoneActivity.this, ProfileActivity.class);

                            intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);



                            startActivity(intent);



                        } else {

                            Toast.makeText(VerifyPhoneActivity.this, task.getException().getMessage(), Toast.LENGTH_LONG).show();

                        }

                    }

                });

    }



    private void sendVerificationCode(String number) {

        progressBar.setVisibility(View.VISIBLE);

        PhoneAuthProvider.getInstance().verifyPhoneNumber(

                number,

                60,

                TimeUnit.SECONDS,

                TaskExecutors.MAIN_THREAD,

                mCallBack

        );



    }



    private PhoneAuthProvider.OnVerificationStateChangedCallbacks

            mCallBack = new PhoneAuthProvider.OnVerificationStateChangedCallbacks() {



        @Override

        public void onCodeSent(String s, PhoneAuthProvider.ForceResendingToken forceResendingToken) {

            super.onCodeSent(s, forceResendingToken);

            verificationId = s;

        }



        @Override

        public void onVerificationCompleted(PhoneAuthCredential phoneAuthCredential) {

            String code = phoneAuthCredential.getSmsCode();

            if (code != null) {

                editText.setText(code);

                verifyCode(code);

            }



            System.out.println("Hello Phone Number"+code);

        }



        @Override

        public void onVerificationFailed(FirebaseException e) {

            Toast.makeText(VerifyPhoneActivity.this, e.getMessage(), Toast.LENGTH_LONG).show();

        }

    };

}

Below code looks like not working:

@Override

public void onVerificationCompleted(PhoneAuthCredential phoneAuthCredential) {

    String code = phoneAuthCredential.getSmsCode();

   // String code="000000";

    if (code != null) {

        editText.setText(code);

        verifyCode(code);

    }



    System.out.println("Hello Phone Number2"+code);

}

Use like this following:

onCreate

mAuth = FirebaseAuth.getInstance();

mCallbacks = new PhoneAuthProvider.OnVerificationStateChangedCallbacks()

        {



            @Override

            public void onVerificationCompleted(PhoneAuthCredential credential)

            {

                // This callback will be invoked in two situations:

                // 1 - Instant verification. In some cases the phone number can be instantly

                //     verified without needing to send or enter a verification code.

                // 2 - Auto-retrieval. On some devices Google Play services can automatically

                //     detect the incoming verification SMS and perform verificaiton without

                //     user action.

                Log.d(TAG, "onVerificationCompleted:" + credential);



                Log.e("number","credential=-=-=>>><<>>>signInWithPhoneAuthCredential-->>");

                signInWithPhoneAuthCredential(credential);



            }

            @Override

            public void onVerificationFailed(FirebaseException e)

            {

                // This callback is invoked in an invalid request for verification is made,

                // for instance if the the phone number format is not valid.

                Log.e(TAG, "onVerificationFailed", e);



                // Show a message and update the UI

                // ...

            }







            @Override

            public void onCodeSent(String verificationId,

                                   PhoneAuthProvider.ForceResendingToken token)

            {



                // The SMS verification code has been sent to the provided phone number, we

                // now need to ask the user to enter the code and then construct a credential

                // by combining the code with a verification ID.

                Log.e(TAG, "onCodeSent:" + verificationId+"<<token>>"+token);



                // Save verification ID and resending token so we can use them later

                mVerificationId = verificationId;



                //mResendToken = token;



                // ...

            }

        };



        //String phoneNumber=Settings.PREFIX + Settings.PREFIX_PHONE;



        String phoneNumber="your phone number with prefix";



        Log.e("number","credential=-=-=>>>22222>>"+phoneNumber);



        if(phoneNumber!=null && !phoneNumber.isEmpty())

        {

            startPhoneNumberVerification(phoneNumber);

        }

Method:

private void startPhoneNumberVerification(String phoneNumber)

    {

        Log.e("startPhoneNumber","startPhoneNumberVerification------>>"+phoneNumber);

        PhoneAuthProvider.getInstance().verifyPhoneNumber(

                phoneNumber,        // Phone number to verify

                60,                 // Timeout duration

                TimeUnit.SECONDS,   // Unit of timeout

                this,               // Activity (for callback binding)

                mCallbacks);        // OnVerificationStateChangedCallbacks

        Log.e("startPhoneNumber","startPhoneNumberVerification--2222222---->>"+phoneNumber);

    }

Method:

private void signInWithPhoneAuthCredential(PhoneAuthCredential credential)

    {

        mAuth.signInWithCredential(credential)

                .addOnCompleteListener(this, new OnCompleteListener<AuthResult>()

                {

                    @Override

                    public void onComplete(@NonNull Task<AuthResult> task)

                    {

                        if (task.isSuccessful())

                        {

                            // Sign in success, update UI with the signed-in user's information

                            Log.e(TAG, "signInWithCredential:success");







                        } else

                            {

                            // Sign in failed, display a message and update the UI

                            Log.e(TAG, "signInWithCredential:failure", task.getException());

                            if (task.getException() instanceof FirebaseAuthInvalidCredentialsException)

                            {



                            }

                        }

                    }

                });

    }