Move default payment app to special app access.

Bug: 124452117
Bug: 124522992
Test: build
Change-Id: I58e7127920d939dc3635bcc2e608cee6baa21998

src/com/android/settings/applications/specialaccess/DefaultPaymentSettingsPreferenceController.java

@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.applications.specialaccess;
+
+import android.content.Context;
+import android.content.pm.PackageManager;
+import android.nfc.NfcAdapter;
+import android.os.UserManager;
+
+import com.android.settings.core.BasePreferenceController;
+
+public class DefaultPaymentSettingsPreferenceController extends BasePreferenceController {
+
+    private final NfcAdapter mNfcAdapter;
+    private final PackageManager mPackageManager;
+    private final UserManager mUserManager;
+
+    public DefaultPaymentSettingsPreferenceController(Context context, String preferenceKey) {
+        super(context, preferenceKey);
+
+        mPackageManager = context.getPackageManager();
+        mUserManager = context.getSystemService(UserManager.class);
+        mNfcAdapter = NfcAdapter.getDefaultAdapter(mContext);
+    }
+
+    @Override
+    public int getAvailabilityStatus() {
+        if (!mPackageManager.hasSystemFeature(PackageManager.FEATURE_NFC)
+                || !mPackageManager.hasSystemFeature(
+                        PackageManager.FEATURE_NFC_HOST_CARD_EMULATION)) {
+            return UNSUPPORTED_ON_DEVICE;
+        }
+        if (!mUserManager.isAdminUser()) {
+            return DISABLED_FOR_USER;
+        }
+        if (mNfcAdapter == null || !mNfcAdapter.isEnabled()) {
+            return CONDITIONALLY_UNAVAILABLE;
+        }
+        return AVAILABLE;
+    }
+}