Good enough

app/src/main/java/com/example/myapp_1/NotificationActivity.java

@@ -1,14 +1,21 @@
 package com.example.myapp_1;
 
+import android.content.Intent;
 import android.os.Bundle;
+import android.widget.ImageView;
 
 import androidx.appcompat.app.AppCompatActivity;
 
 public class NotificationActivity extends AppCompatActivity {
-
+ImageView vec_back;
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_notification);
+        vec_back = findViewById(R.id.notificationBackButton);
+        vec_back.setOnClickListener(view -> {
+            Intent newScreen = new Intent(getApplicationContext(), HomeActivity.class);
+            startActivity(newScreen);
+        });
     }
 }