ساخت فرم forgot password

import android.app.Fragment;
import android.app.FragmentTransaction;
import android.os.Bundle;
import android.os.CountDownTimer;
import android.support.design.widget.Snackbar;
import android.support.v7.widget.AppCompatButton;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.EditText;
import android.widget.ProgressBar;
import android.widget.TextView;

import com.learn2crack.loginregistration.models.ServerRequest;
import com.learn2crack.loginregistration.models.ServerResponse;
import com.learn2crack.loginregistration.models.User;

import retrofit2.Call;
import retrofit2.Callback;
import retrofit2.Retrofit;
import retrofit2.converter.gson.GsonConverterFactory;

public class ResetPasswordFragment extends Fragment implements View.OnClickListener{

private AppCompatButton btn_reset;
private EditText et_email,et_code,et_password;
private TextView tv_timer;
private ProgressBar progress;
private boolean isResetInitiated = false;
private String email;
private CountDownTimer countDownTimer;

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

View view = inflater.inflate(R.layout.fragment_password_reset,container,false);
initViews(view);
return view;
}

private void initViews(View view){

btn_reset = (AppCompatButton)view.findViewById(R.id.btn_reset);
tv_timer = (TextView)view.findViewById(R.id.timer);
et_code = (EditText)view.findViewById(R.id.et_code);
et_email = (EditText)view.findViewById(R.id.et_email);
et_password = (EditText)view.findViewById(R.id.et_password);
et_password.setVisibility(View.GONE);
et_code.setVisibility(View.GONE);
tv_timer.setVisibility(View.GONE);
btn_reset.setOnClickListener(this);
progress = (ProgressBar)view.findViewById(R.id.progress);

}

@Override
public void onClick(View v) {
switch (v.getId()){

case R.id.btn_reset:

if(!isResetInitiated) {

email = et_email.getText().toString();
if (!email.isEmpty()) {
progress.setVisibility(View.VISIBLE);
initiateResetPasswordProcess(email);
} else {

Snackbar.make(getView(), "Fields are empty !", Snackbar.LENGTH_LONG).show();
}
} else {

String code = et_code.getText().toString();
String password = et_password.getText().toString();

if(!code.isEmpty() && !password.isEmpty()){

finishResetPasswordProcess(email,code,password);
} else {

Snackbar.make(getView(), "Fields are empty !", Snackbar.LENGTH_LONG).show();
}

}

break;
}
}

private void initiateResetPasswordProcess(String email){

Retrofit retrofit = new Retrofit.Builder()
.baseUrl(Constants.BASE_URL)
.addConverterFactory(GsonConverterFactory.create())
.build();

RequestInterface requestInterface = retrofit.create(RequestInterface.class);

User user = new User();
user.setEmail(email);
ServerRequest request = new ServerRequest();
request.setOperation(Constants.RESET_PASSWORD_INITIATE);
request.setUser(user);
Call<ServerResponse> response = requestInterface.operation(request);

response.enqueue(new Callback<ServerResponse>() {
@Override
public void onResponse(Call<ServerResponse> call, retrofit2.Response<ServerResponse> response) {

ServerResponse resp = response.body();
Snackbar.make(getView(), resp.getMessage(), Snackbar.LENGTH_LONG).show();

if(resp.getResult().equals(Constants.SUCCESS)){

Snackbar.make(getView(), resp.getMessage(), Snackbar.LENGTH_LONG).show();
et_email.setVisibility(View.GONE);
et_code.setVisibility(View.VISIBLE);
et_password.setVisibility(View.VISIBLE);
tv_timer.setVisibility(View.VISIBLE);
btn_reset.setText("Change Password");
isResetInitiated = true;
startCountdownTimer();

} else {

Snackbar.make(getView(), resp.getMessage(), Snackbar.LENGTH_LONG).show();

}
progress.setVisibility(View.INVISIBLE);
}

@Override
public void onFailure(Call<ServerResponse> call, Throwable t) {

progress.setVisibility(View.INVISIBLE);
Log.d(Constants.TAG,"failed");
Snackbar.make(getView(), t.getLocalizedMessage(), Snackbar.LENGTH_LONG).show();

}
});
}

private void finishResetPasswordProcess(String email,String code, String password){

Retrofit retrofit = new Retrofit.Builder()
.baseUrl(Constants.BASE_URL)
.addConverterFactory(GsonConverterFactory.create())
.build();

RequestInterface requestInterface = retrofit.create(RequestInterface.class);

User user = new User();
user.setEmail(email);
user.setCode(code);
user.setPassword(password);
ServerRequest request = new ServerRequest();
request.setOperation(Constants.RESET_PASSWORD_FINISH);
request.setUser(user);
Call<ServerResponse> response = requestInterface.operation(request);

response.enqueue(new Callback<ServerResponse>() {
@Override
public void onResponse(Call<ServerResponse> call, retrofit2.Response<ServerResponse> response) {

ServerResponse resp = response.body();
Snackbar.make(getView(), resp.getMessage(), Snackbar.LENGTH_LONG).show();

if(resp.getResult().equals(Constants.SUCCESS)){

Snackbar.make(getView(), resp.getMessage(), Snackbar.LENGTH_LONG).show();
countDownTimer.cancel();
isResetInitiated = false;
goToLogin();

} else {

Snackbar.make(getView(), resp.getMessage(), Snackbar.LENGTH_LONG).show();

}
progress.setVisibility(View.INVISIBLE);
}

@Override
public void onFailure(Call<ServerResponse> call, Throwable t) {

progress.setVisibility(View.INVISIBLE);
Log.d(Constants.TAG,"failed");
Snackbar.make(getView(), t.getLocalizedMessage(), Snackbar.LENGTH_LONG).show();

}
});
}

private void startCountdownTimer(){
countDownTimer = new CountDownTimer(120000, 1000) {

public void onTick(long millisUntilFinished) {
tv_timer.setText("Time remaining : " + millisUntilFinished / 1000);
}

public void onFinish() {
Snackbar.make(getView(), "Time Out ! Request again to reset password.", Snackbar.LENGTH_LONG).show();
goToLogin();
}
}.start();
}

private void goToLogin(){

Fragment login = new LoginFragment();
FragmentTransaction ft = getFragmentManager().beginTransaction();
ft.replace(R.id.fragment_frame,login);
ft.commit();
}
}