new Handler().postDelayed(
            new Runnable() {
                @TargetApi(Build.VERSION_CODES.JELLY_BEAN)
                @RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN)
                public void run() {
                    // On complete call either onLoginSuccess or onLoginFailed
                    onLoginSuccess();
                    //openMyc();
                    progressDialog.dismiss();
                }
            }, 3000);
}

public void startActivity() {
 Intent intent = new Intent(this, MainActivity.class);
}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    if ((requestCode != REQUEST_SIGNUP)) {
        if ((resultCode != RESULT_OK)) {

            // TODO: Implement successful signup logic here
            // By default we just finish the Activity and log them in automatically
            this.openMyc();
        }
    }
}

public class LoginActivity extends AppCompatActivity {
    private static final String TAG = "LoginActivity";
    private static final int REQUEST_SIGNUP = 0;
    private FirebaseAuth mAuth;
@BindView(R.id.input_email) EditText _emailText;
@BindView(R.id.input_password) EditText _passwordText;
@BindView(R.id.btn_login) Button _loginButton;
@BindView(R.id.link_signup) TextView _signupLink;
//@BindView(R.id.btn_logout) Button _logoutButton;

FirebaseAuth.AuthStateListener listener;

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_login);
    ButterKnife.bind(this);

    mAuth = FirebaseAuth.getInstance();
    listener = new FirebaseAuth.AuthStateListener() {
        @Override
        public void onAuthStateChanged(@NonNull FirebaseAuth firebaseAuth) {
            FirebaseUser user = mAuth.getCurrentUser();
            if (user == null){
                //No Ha ingeresado
            }else {
                openMyc();
                Toast.makeText(getApplicationContext(), "Right and logged", Toast.LENGTH_LONG).show();
                //YA ingreso
            }
        }
    };

    _loginButton.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            login();
        }
    });

    /**_logoutButton.setOnClickListener(new View.OnClickListener() {

    @Override
    public void onClick(View v) {
    login();
    }
    });**/

    _signupLink.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            // Start the Signup activity
            Intent intent = new Intent(getApplicationContext(), SignupActivity.class);
            startActivityForResult(intent, REQUEST_SIGNUP);
            finish();
            overridePendingTransition(R.anim.push_left_in, R.anim.push_left_out);
        }
    });


}

public void login() {

    Log.d(TAG, "Login");

    if (!validate()) {
        onLoginFailed();
        return;
    }

    _loginButton.setEnabled(false);

    final ProgressDialog progressDialog = new ProgressDialog(LoginActivity.this,
            R.style.AppTheme_Dark_Dialog);
    progressDialog.setIndeterminate(true);
    progressDialog.setMessage("Authenticating...");
    progressDialog.show();

    String email = _emailText.getText().toString();
    String password = _passwordText.getText().toString();

    // TODO: Implement your own authentication logic here.
    if (!email.isEmpty() && !password.isEmpty()){
        mAuth.signInWithEmailAndPassword(email,password) .addOnCompleteListener(new OnCompleteListener<AuthResult>() {
            @Override
            public void onComplete(@NonNull Task<AuthResult> task) {
                if (task.isSuccessful()){
                    Toast.makeText(getApplicationContext(), "Correct login :)", Toast.LENGTH_LONG).show();
                }else {
                    Toast.makeText(getApplicationContext(), "Incorrect login :(", Toast.LENGTH_LONG).show();

                }
            }
        });
    }

    new android.os.Handler().postDelayed(
            new Runnable() {
                @TargetApi(Build.VERSION_CODES.JELLY_BEAN)
                @RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN)
                public void run() {
                    // On complete call either onLoginSuccess or onLoginFailed
                    onLoginSuccess();
                    progressDialog.dismiss();
                }
            }, 3000);
}

public void startActivity() {
 Intent intent = new Intent(this, MainActivity.class);
}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    if ((requestCode != REQUEST_SIGNUP)) {
        if ((resultCode != RESULT_OK)) {

            // TODO: Implement successful signup logic here
            // By default we just finish the Activity and log them in automatically
            this.openMyc();
        }
    }
}

@Override
public void onBackPressed() {
    // Disable going back to the MainActivity
    moveTaskToBack(true);
}

public void onLoginSuccess() {
    _loginButton.setEnabled(true);
    finish();
}

public void onLoginFailed() {
    Toast.makeText(getBaseContext(), "Login failed", Toast.LENGTH_LONG).show();

    _loginButton.setEnabled(true);
}

public boolean validate() {
    boolean valid = true;

    String email = _emailText.getText().toString();
    String password = _passwordText.getText().toString();

    if (email.isEmpty() || !android.util.Patterns.EMAIL_ADDRESS.matcher(email).matches()) {
        _emailText.setError("enter a valid email address");
        valid = false;
    } else {
        _emailText.setError(null);
    }

    if (password.isEmpty() || password.length() < 4 || password.length() > 10) {
        _passwordText.setError("between 4 and 10 alphanumeric characters");
        valid = false;
    } else {
        _passwordText.setError(null);
    }

    return valid;
}

private void openMyc() {
    Intent i = new Intent(this,MyCount.class);
    startActivity(i);
    finish();
}
@Override
protected void onStart() {
    super.onStart();
    mAuth.addAuthStateListener(listener);
}

@Override
protected void onStop() {
    super.onStop();
    if (listener != null){
        mAuth.removeAuthStateListener(listener);
    }
}