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Notification.java

+package com.example.peopluz1.fragments;
+
+import android.os.Bundle;
+
+import androidx.fragment.app.Fragment;
+import androidx.recyclerview.widget.RecyclerView;
+
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import com.example.peopluz1.Adapters.NotificationsAdapter;
+import com.example.peopluz1.R;
+import com.google.android.gms.tasks.OnSuccessListener;
+import com.google.firebase.auth.FirebaseAuth;
+import com.google.firebase.firestore.DocumentSnapshot;
+import com.google.firebase.firestore.FirebaseFirestore;
+import com.google.firebase.firestore.QuerySnapshot;
+
+import java.util.ArrayList;
+import java.util.List;
+
+
+public class Notification extends Fragment {
+
+    private FirebaseFirestore db;
+    FirebaseAuth auth;
+
+    public RecyclerView mRecycleView;
+    public NotificationsAdapter mAdapter;
+    public RecyclerView.LayoutManager mManager;
+    ArrayList<Notification> list = new ArrayList<>();
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+                             Bundle savedInstanceState) {
+        // Inflate the layout for this fragment
+        db = FirebaseFirestore.getInstance();
+        return inflater.inflate(R.layout.fragment_notification, container, false);
+    }
+
+    public void getNotifications(){
+        db.collection("users").document(auth.getCurrentUser().getUid())
+                .collection("trip").get()
+                .addOnSuccessListener(new OnSuccessListener<QuerySnapshot>() {
+                    @Override
+                    public void onSuccess(QuerySnapshot queryDocumentSnapshots) {
+
+                        if(!queryDocumentSnapshots.isEmpty()){
+
+                            List<DocumentSnapshot> clist = queryDocumentSnapshots.getDocuments();
+
+                            for(DocumentSnapshot d : clist){
+
+                                Notification p = d.toObject(Notification.class);
+                                list.add(p);
+                            }
+                            mAdapter.notifyDataSetChanged();
+                        }
+                    }
+                });
+
+    }
+}
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