Q5

app/src/main/java/fr/iutlille/ctp_2025/MainActivity.java

 package fr.iutlille.ctp_2025;
 
+import static android.media.CamcorderProfile.get;
+
 import androidx.annotation.NonNull;
 import androidx.appcompat.app.AppCompatActivity;
 import androidx.recyclerview.widget.DividerItemDecoration;
@@ -7,9 +9,12 @@ import androidx.recyclerview.widget.LinearLayoutManager;
 import androidx.recyclerview.widget.RecyclerView;
 
 import android.os.Bundle;
+import android.view.ContextMenu;
 import android.view.LayoutInflater;
+import android.view.Menu;
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.AdapterView;
 import android.widget.EditText;
 import android.widget.TextView;
 import android.widget.Button;
@@ -24,6 +29,9 @@ public class MainActivity extends AppCompatActivity {
     public class ParticipantAdapter extends RecyclerView.Adapter<ParticipantViewHolder> {
 
         private List<Participant> participantsList;
+        public static final int MENU_DELETE = 1;
+        private AdapterView.OnItemClickListener listener;
+
 
         ParticipantAdapter(){}
 
@@ -56,12 +64,41 @@ public class MainActivity extends AppCompatActivity {
 
         TextView text1;
         TextView text2;
+        public static final int MENU_DELETE = 1;
+
+        private AdapterView.OnItemClickListener listener;
+
         public ParticipantViewHolder(View itemView) {
             super(itemView);
             text1 = itemView.findViewById(android.R.id.text1);
             text2 = itemView.findViewById(android.R.id.text2);
+            itemView.setOnCreateContextMenuListener(this::onCreateContextMenu);
         }
-    }
+
+        public void onClick(View v) {
+            if (listener != null)
+                listener.onItemClick(getAbsoluteAdapterPosition());
+        }
+
+        private void onCreateContextMenu(ContextMenu menu,
+                                         View v,
+                                         ContextMenu.ContextMenuInfo menuInfo){
+            int position = getAbsoluteAdapterPosition();
+            menu.add(Menu.NONE, MENU_DELETE, position, "Delete");
+            menu.setHeaderTitle(ui.ParticipantList.toString());
+        }
+
+        private int getAbsoluteAdapterPosition() {
+        }
+
+        public void setOnItemClickListener(AdapterView.OnItemClickListener l) {
+            this.listener = l;
+        }
+
+        public void onBindViewHolder(@NonNull ParticipantViewHolder holder, int position) {
+            Participant participant = model.getParticipant(position);
+            holder.setOnItemClickListener(listener);
+        }}
     private ActivityMainBinding ui;
     private ModelApplication model;
 
@@ -105,4 +142,5 @@ public class MainActivity extends AppCompatActivity {
         model.computeBalance();
         ui.ParticipantList.getAdapter().notifyDataSetChanged();
     }
+
 }
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