stamps change based on logged in user, added british stamps

app/src/main/java/com/example/drp25/MatchActivity.kt

@@ -113,11 +113,31 @@ class MatchActivity : AppCompatActivity() {
 
         // Set up stamps
         val stamp1 = findViewById<ImageView>(R.id.stamp_option_1)
-        stamp1.setImageResource(R.drawable.china_flag_stamp)
         val stamp2 = findViewById<ImageView>(R.id.stamp_option_2)
-        stamp2.setImageResource(R.drawable.china_tourist_stamp)
         val stamp3 = findViewById<ImageView>(R.id.stamp_option_3)
-        stamp3.setImageResource(R.drawable.china_food_stamp)
+
+        val nationalityRef = FirebaseDatabase.getInstance().reference.child("universities")
+            .child(UNI_ID).child("users").child(USER_ID).child("nationality")
+
+        nationalityRef.addValueEventListener(object: ValueEventListener{
+            override fun onDataChange(snapshot: DataSnapshot) {
+                val nationality = snapshot.value as String
+                if (nationality == "Chinese") {
+                    stamp1.setImageResource(R.drawable.china_flag_stamp)
+                    stamp2.setImageResource(R.drawable.china_tourist_stamp)
+                    stamp3.setImageResource(R.drawable.china_food_stamp)
+                } else if (nationality == "British") {
+                    stamp1.setImageResource(R.drawable.britain_flag_stamp)
+                    stamp2.setImageResource(R.drawable.britain_tourist_stamp)
+                    stamp3.setImageResource(R.drawable.britain_food_stamp)
+                }
+            }
+
+            override fun onCancelled(error: DatabaseError) {
+                TODO("Not yet implemented")
+            }
+
+        })
     }
 
 }