Use Utils$getSessionIDHeader everywhere

app/src/main/java/app/insti/fragment/MessMenuFragment.java

@@ -109,7 +109,7 @@ public class MessMenuFragment extends BaseFragment {
 
     private void updateMessMenu(final String hostel) {
         RetrofitInterface retrofitInterface = Utils.getRetrofitInterface();
-        retrofitInterface.getInstituteMessMenu("sessionid=" + getArguments().getString(Constants.SESSION_ID)).enqueue(new Callback<List<HostelMessMenu>>() {
+        retrofitInterface.getInstituteMessMenu(Utils.getSessionIDHeader()).enqueue(new Callback<List<HostelMessMenu>>() {
             @Override
             public void onResponse(Call<List<HostelMessMenu>> call, Response<List<HostelMessMenu>> response) {
                 if (response.isSuccessful()) {

app/src/main/java/app/insti/fragment/SettingsFragment.java

@@ -57,7 +57,7 @@ public class SettingsFragment extends Fragment {
         populateViews();
 
         RetrofitInterface retrofitInterface = Utils.getRetrofitInterface();
-        retrofitInterface.getUser("sessionid=" + getArguments().getString(Constants.SESSION_ID), userID).enqueue(new Callback<User>() {
+        retrofitInterface.getUser(Utils.getSessionIDHeader(), userID).enqueue(new Callback<User>() {
             @Override
             public void onResponse(Call<User> call, Response<User> response) {
                 if (response.isSuccessful()) {
@@ -133,7 +133,7 @@ public class SettingsFragment extends Fragment {
                 @Override
                 public void onClick(View v) {
                     RetrofitInterface retrofitInterface = Utils.getRetrofitInterface();
-                    retrofitInterface.logout("sessionid=" + getArguments().getString(Constants.SESSION_ID)).enqueue(new Callback<Void>() {
+                    retrofitInterface.logout(Utils.getSessionIDHeader()).enqueue(new Callback<Void>() {
                         @Override
                         public void onResponse(Call<Void> call, Response<Void> response) {
                             if (response.isSuccessful()) {

app/src/main/java/app/insti/fragment/UserFragment.java

@@ -109,7 +109,7 @@ public class UserFragment extends BackHandledFragment {
         String userID = bundle.getString(Constants.USER_ID);
 
         RetrofitInterface retrofitInterface = Utils.getRetrofitInterface();
-        retrofitInterface.getUser("sessionid=" + getArguments().getString(Constants.SESSION_ID), userID).enqueue(new Callback<User>() {
+        retrofitInterface.getUser(Utils.getSessionIDHeader(), userID).enqueue(new Callback<User>() {
             @Override
             public void onResponse(Call<User> call, Response<User> response) {
                 if (response.isSuccessful()) {