Do not let guest user disable secuer nfc via SettingsSlice

Do not let guest user switch the secure nfc preferernce setting.

Bug: 228314987
Test: manual
Change-Id: I60a832e32d83bb57d968af2f8b92d94e2ac7c6a2

src/com/android/settings/nfc/SecureNfcPreferenceController.java

@@ -17,6 +17,7 @@ package com.android.settings.nfc;
 
 import android.content.Context;
 import android.nfc.NfcAdapter;
+import android.os.UserManager;
 
 import androidx.preference.PreferenceScreen;
 import androidx.preference.SwitchPreference;
@@ -32,10 +33,12 @@ public class SecureNfcPreferenceController extends TogglePreferenceController
     public static final String KEY_SECURENFC_SETTINGS = "nfc_secure_settings";
     private final NfcAdapter mNfcAdapter;
     private SecureNfcEnabler mSecureNfcEnabler;
+    private final UserManager mUserManager;
 
     public SecureNfcPreferenceController(Context context, String key) {
         super(context, key);
         mNfcAdapter = NfcAdapter.getDefaultAdapter(context);
+        mUserManager = context.getSystemService(UserManager.class);
     }
 
     @Override
@@ -58,7 +61,11 @@ public class SecureNfcPreferenceController extends TogglePreferenceController
 
     @Override
     public boolean setChecked(boolean isChecked) {
+        if (isToggleable()) {
             return mNfcAdapter.enableSecureNfc(isChecked);
+        } else {
+            return false;
+        }
     }
 
     @Override
@@ -95,4 +102,12 @@ public class SecureNfcPreferenceController extends TogglePreferenceController
             mSecureNfcEnabler.pause();
         }
     }
+
+    private boolean isToggleable() {
+        if (mUserManager.isGuestUser()) {
+            return false;
+        }
+        return true;
+    }
+
 }