java - getFullName: Could not parse number

Question

i am trying to login using data that are stored in firebase realtime database and when i try to login with phone number it gives an error and the ondatachange function not working.

public class LoginActivity extends AppCompatActivity {

    Button Log_in, sign_up;
    CountryCodePicker countryCodePicker;
    TextInputLayout number, password;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_login);

        Log_in = findViewById(R.id.Log_in);
        sign_up = findViewById(R.id.sign_up);
        number = findViewById(R.id.number);
        password = findViewById(R.id.password);
        countryCodePicker = findViewById(R.id.Login_ccp);
    }

    public void callHomrScreen(View view) {
        if (!validateNumber() | !validatePassword()){
            return;
        }
        //getting data
        String _phoneNumber = number.getEditText().getText().toString().trim();
        String _password = password.getEditText().getText().toString().trim();

       if (_phoneNumber.charAt(0)=='0'){
           _phoneNumber=_phoneNumber.substring(1);
       }

        String _completePhoneNumber = "+" + countryCodePicker.getFullNumber() + _phoneNumber;

        //???DatabaseQuery
        Query chekUser = FirebaseDatabase.getInstance().getReference("Users").orderByChild("phoneNumber").equalTo(_completePhoneNumber);

        chekUser.addValueEventListener(new ValueEventListener() {
            @Override
            public void onDataChange(@NonNull DataSnapshot snapshot) {
                if (snapshot.exists()){
                    number.setError(null);
                    number.setErrorEnabled(false);

                    String systemPassword=snapshot.child(_completePhoneNumber).child("password").getValue(String.class);
                    if (systemPassword.equals(_password)){
                        password.setError(null);
                        password.setErrorEnabled(false);
                    }else{
                        Toast.makeText(LoginActivity.this, "Password Doesnot Exist!", Toast.LENGTH_SHORT).show();

                    }
                }else{
                    Toast.makeText(LoginActivity.this, "User Doesnot Exist!", Toast.LENGTH_SHORT).show();

                }
            }

            @Override
            public void onCancelled(@NonNull DatabaseError error) {
                Toast.makeText(LoginActivity.this, error.getMessage(), Toast.LENGTH_SHORT).show();

            }
        });
    }

    public void callRegisterActivity(View view) {
        startActivity(new Intent(getApplicationContext(), RegisterActivity.class));
    }


    private boolean validateNumber() {
        String val = number.getEditText().getText().toString().trim();

        if (val.isEmpty()) {
            number.setError("field cannot be empty");
            return false;
        } else {
            number.setError(null);
            number.setErrorEnabled(false);
            return true;
        }
    }

    private boolean validatePassword() {
        String val = password.getEditText().getText().toString().trim();
        String checkPassword = "^" +
            "(?=.*[0-9])" +         //at least 1 digit
            "(?=.*[a-z])" +         //at least 1 lower case letter
            "(?=.*[A-Z])" +         //at least 1 upper case letter
            "(?=.*[a-zA-Z])" +      //any letter
            "(?=.*[@#$%^&+=])" +    //at least 1 special character
            "(?=\S+$)" +           //no white spaces
            ".{4,}" +               //at least 4 characters
            "$";

        if (val.isEmpty()) {
            password.setError("field cannot be empty");
            return false;
        }
        //else if (!val.matches(checkPassword)){
        //   password.setError("password should contain atleast 4 charecter");
        //   return false;
        //}
        else {
            password.setError(null);
            password.setErrorEnabled(false);
            return true;
        }
    }
}

Error E/CCP: getFullNumber: Could not parse number E/CCP: getFullNumber: Could not parse number E/OpenGLRenderer: GL error: 0x506 A/OpenGLRenderer: GL errors! frameworks/base/libs/hwui/pipeline/skia/SkiaOpenGLPipeline.cpp:126 A/libc: Fatal signal 6 (SIGABRT), code -1 (SI_QUEUE) in tid 9153 (RenderThread), pid 9112

Answer 1

try to replace countryCodePicker.getFullNumber() with countryCodePicker.getSelectedCountryCode

so your phone number line is:

 String _completePhoneNumber = "+" + countryCodePicker.getSelectedCountryCode() + _phoneNumber;

using getSelectedCountryCode you get only number code like : 1,91, 81 and you get output like : +1xxxxxxxxxx