Add pref manager for username

app/src/main/java/com/example/yourcashiertest/activities/LoginActivity.java

@@ -61,6 +61,7 @@ public class LoginActivity extends AppCompatActivity {
                             && binding.etPassword.getText().toString().equals(users.get(i).getPassword())) {
                         prefManager.setFirstLogin(false);
                         binding.setLoading(false);
+                        prefManager.setUsername(users.get(i).getFullName());
                         startActivity(new Intent(LoginActivity.this, MainActivity.class).putExtra(DATA_LOGIN, users.get(i).getFullName()).addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK).addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP));
                         finish();
                         return;

app/src/main/java/com/example/yourcashiertest/activities/MainActivity.java

@@ -59,7 +59,7 @@ public class MainActivity extends AppCompatActivity {
             if (carts.size() != 0) binding.tvCount.setText(String.valueOf(carts.size()));
             else binding.tvCount.setText(String.valueOf(0));
         });
-        String name = getIntent().getStringExtra(LoginActivity.DATA_LOGIN);
+        String name = prefManager.getUsername();
         binding.tvUser.setText(name);
         // settings menu
         binding.ivCart.setOnClickListener(view -> startActivity(new Intent(MainActivity.this, CartActivity.class)));
@@ -72,9 +72,9 @@ public class MainActivity extends AppCompatActivity {
                         startActivity(new Intent(MainActivity.this, ProductActivity.class));
                         break;
                     case R.id.item_two:
-                        if (visibility){
+                        if (visibility) {
                             visibility = false;
-                        }else {
+                        } else {
                             visibility = true;
                         }
                         finish();
@@ -91,9 +91,9 @@ public class MainActivity extends AppCompatActivity {
                 return false;
             });
             popupMenu.inflate(R.menu.settings_menu);
-            if (visibility){
+            if (visibility) {
                 popupMenu.getMenu().findItem(R.id.item_two).setTitle("Back");
-            }else {
+            } else {
                 popupMenu.getMenu().findItem(R.id.item_two).setTitle("Update or Delete");
             }
             popupMenu.show();
@@ -142,17 +142,17 @@ public class MainActivity extends AppCompatActivity {
     }
 
 
-    public void addToCart(Product product){
+    public void addToCart(Product product) {
         // cek apakah sudah ditambahkan
         checkProduct(product);
 
-        if (added){
+        if (added) {
             startActivity(new Intent(MainActivity.this, CartActivity.class));
             finish();
-        }else {
+        } else {
             product.setQuantity(product.getQuantity() - 1);
             viewModel.updateProduct(product);
-            Cart cart = new Cart(0,"", "", 0, 0, 0);
+            Cart cart = new Cart(0, "", "", 0, 0, 0);
             cart.setIdProduct(product.getId());
             cart.setImage(product.getPhoto());
             cart.setNameProduct(product.getName());
@@ -164,12 +164,12 @@ public class MainActivity extends AppCompatActivity {
         }
     }
 
-    public void checkProduct(Product product){
+    public void checkProduct(Product product) {
         cartViewModel.getCarts().observe(this, new Observer<List<Cart>>() {
             @Override
             public void onChanged(List<Cart> carts) {
-                for(int i = 0; i < carts.size(); i++){
-                    if (carts.get(i).getNameProduct().equals(product.getName())){
+                for (int i = 0; i < carts.size(); i++) {
+                    if (carts.get(i).getNameProduct().equals(product.getName())) {
                         added = true;
                         break;
                     }

app/src/main/java/com/example/yourcashiertest/activities/PrefManager.java

@@ -15,6 +15,7 @@ public class PrefManager {
     private static final String PREF_NAME = "prefWelcome";
     private static final String IS_FIRST_WELCOME = "IsFirstWelcome";
     private static final String IS_FIRST_LOGIN = "IsFirstLogin";
+    private static final String PREF_USERNAME = "username";
 
     public PrefManager(Context context) {
         this._context = context;
@@ -30,8 +31,13 @@ public class PrefManager {
         editor.putBoolean(IS_FIRST_LOGIN, isFirstTime);
         editor.commit();
     }
+    public void setUsername(String username) {
+        editor.putString(PREF_USERNAME, username);
+        editor.commit();
+    }
     public boolean isFirstLogin(){return pref.getBoolean(IS_FIRST_LOGIN, true);}
     public boolean isFirstWelcome() { return pref.getBoolean(IS_FIRST_WELCOME, true); }
+    public String getUsername() { return pref.getString(PREF_USERNAME, "..."); }
 
     public void removeLoginSession(){
 //            loginActivity.launchMain(true);