diff --git a/src/com/android/settings/network/apn/ApnEditPageProvider.kt b/src/com/android/settings/network/apn/ApnEditPageProvider.kt
index 756d90f..90d96c6 100644
--- a/src/com/android/settings/network/apn/ApnEditPageProvider.kt
+++ b/src/com/android/settings/network/apn/ApnEditPageProvider.kt
@@ -148,13 +148,13 @@
                 stringResource(R.string.apn_mnc),
                 enabled = apnData.mncEnabled
             ) { apnData = apnData.copy(mnc = it) }
+            // Warning: apnProtocol, apnRoaming, mvnoType string2Int
             SettingsExposedDropdownMenuBox(
-                label = stringResource(R.string.apn_auth_type),
-                options = authTypeOptions,
-                selectedOptionText =
-                authTypeOptions.getOrElse(apnData.authType) { "" },
-                enabled = apnData.authTypeEnabled,
-            ) { apnData = apnData.copy(authType = authTypeOptions.indexOf(it)) }
+                stringResource(R.string.apn_auth_type),
+                authTypeOptions,
+                apnData.authType,
+                apnData.authTypeEnabled,
+            ) { apnData = apnData.copy(authType = it) }
             SettingsOutlinedTextField(
                 apnData.apnType,
                 stringResource(R.string.apn_type),
diff --git a/src/com/android/settings/network/apn/ApnStatus.kt b/src/com/android/settings/network/apn/ApnStatus.kt
index 8a2d613..7f4c297 100644
--- a/src/com/android/settings/network/apn/ApnStatus.kt
+++ b/src/com/android/settings/network/apn/ApnStatus.kt
@@ -34,11 +34,11 @@
     val mnc: String = "",
     val authType: Int = -1,
     val apnType: String = "",
-    val apnProtocol: String = "",
-    val apnRoaming: String = "",
+    val apnProtocol: Int = -1,
+    val apnRoaming: Int = -1,
     val apnEnable: Boolean = true,
     val bearer: Int = 0,
-    val mvnoType: String = "",
+    val mvnoType: Int = -1,
     var mvnoValue: String = "",
     val bearerBitmask: Int = 0,
     val edited: Int = Telephony.Carriers.USER_EDITED,
diff --git a/tests/spa_unit/src/com/android/settings/network/apn/ApnEditPageProviderTest.kt b/tests/spa_unit/src/com/android/settings/network/apn/ApnEditPageProviderTest.kt
index c6c37d5..590fe9e 100644
--- a/tests/spa_unit/src/com/android/settings/network/apn/ApnEditPageProviderTest.kt
+++ b/tests/spa_unit/src/com/android/settings/network/apn/ApnEditPageProviderTest.kt
@@ -49,13 +49,14 @@
     private val apnType = "apn_type"
     private val apnRoaming = "IPv4"
     private val apnEnable = context.resources.getString(R.string.carrier_enabled)
+    private val apnProtocolOptions = context.resources.getStringArray(R.array.apn_protocol_entries).toList()
     private val apnData = ApnData(
         name = apnName,
         mmsc = mmsc,
         mmsProxy = mmsProxy,
         mnc = mnc,
         apnType = apnType,
-        apnRoaming = apnRoaming,
+        apnRoaming = apnProtocolOptions.indexOf(apnRoaming),
         apnEnable = true
     )