Names will now be deleted and a new name can be selected.

app/src/main/java/edu/temple/namelist/CustomAdapter.kt

@@ -10,7 +10,7 @@ class CustomAdapter(private val names: List<String>, private val context: Contex
 
     // How many items are in the collection
     override fun getCount(): Int {
-        return 5
+        return names.size
     }
 
     // Fetch an item from the collection

app/src/main/java/edu/temple/namelist/MainActivity.kt

@@ -21,6 +21,8 @@ class MainActivity : AppCompatActivity() {
 
         val spinner = findViewById<Spinner>(R.id.spinner)
         val nameTextView = findViewById<TextView>(R.id.textView)
+        val deleteButton = findViewById<Button>(R.id.deleteButton)
+
 
         with (spinner) {
             adapter = CustomAdapter(names, this@MainActivity)
@@ -36,10 +38,23 @@ class MainActivity : AppCompatActivity() {
             }
         }
 
-        findViewById<View>(R.id.deleteButton).setOnClickListener {
-            (names as MutableList).removeAt(spinner.selectedItemPosition)
+        deleteButton.setOnClickListener {
+//            (names as MutableList).removeAt(spinner.selectedItemPosition)
+//            (spinner.adapter as BaseAdapter).notifyDataSetChanged()
+
+            val oldPos = spinner.selectedItemPosition
+            (names as MutableList).removeAt(oldPos)
             (spinner.adapter as BaseAdapter).notifyDataSetChanged()
-        }
 
+            if (names.isNotEmpty()) {
+                val newPos = oldPos.coerceAtMost(names.lastIndex)
+                spinner.setSelection(newPos, false)
+                nameTextView.text = names[newPos]
+            }else {
+                nameTextView.text = ""
+                deleteButton.isEnabled = false
+
+            }
+        }
     }
 }