Merge pull request #155 from rkozyak/Christian

Added private instances

HealthTrack/app/src/main/java/com/example/healthtrack/view/ChallengeDetails.java

@@ -1,5 +1,7 @@
 package com.example.healthtrack.view;
 
+import com.example.healthtrack.model.User;
+import com.example.healthtrack.model.Workout;
 import com.google.firebase.auth.FirebaseAuth;
 import com.google.firebase.database.DatabaseReference;
 import android.content.Intent;
@@ -12,17 +14,25 @@
 import androidx.appcompat.app.AppCompatActivity;
 import com.example.healthtrack.R;
 
+import java.util.ArrayList;
+
 public class ChallengeDetails extends AppCompatActivity{
     private DatabaseReference database;
     private DatabaseReference workoutDatabase;
+    private DatabaseReference userDatabase;
     private FirebaseAuth mAuth;
+    private String challenger;
+    private String deadline;
+    private String desc;
+    private ArrayList<Workout> workout;
+    private ArrayList<User> user;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         EdgeToEdge.enable(this);
         setContentView(R.layout.activity_challenge_details);
 
-        
+
     }
 }