[Settings] eSIM transfer: MobileNetworkSettings

- Add new entry in pSIM: Convert to eSIM
 - Add new entry in eSIM: Transfer eSIM to another device

Srceenshot(pSIM): https://hsv.googleplex.com/6013596216590336
Srceenshot(eSIM): https://hsv.googleplex.com/6584033673740288

Bug: 261810065
Test: manual
Change-Id: Ifb1a6f8213037893939478caf1ced4a5705bdf66

src/com/android/settings/network/telephony/TransferEsimPreferenceController.java

@@ -0,0 +1,70 @@
+/**
+ * Copyright (C) 2022 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.network.telephony;
+
+import android.content.Context;
+import android.text.TextUtils;
+
+import androidx.annotation.VisibleForTesting;
+import androidx.preference.Preference;
+import androidx.preference.PreferenceScreen;
+
+import com.android.settingslib.mobile.dataservice.SubscriptionInfoEntity;
+
+public class TransferEsimPreferenceController extends TelephonyBasePreferenceController {
+
+    private Preference mPreference;
+    private SubscriptionInfoEntity mSubscriptionInfoEntity;
+
+    public TransferEsimPreferenceController(Context context, String key) {
+        super(context, key);
+    }
+
+    public void init(int subId, SubscriptionInfoEntity subInfoEntity) {
+        mSubId = subId;
+        mSubscriptionInfoEntity = subInfoEntity;
+    }
+
+    @Override
+    public void displayPreference(PreferenceScreen screen) {
+        super.displayPreference(screen);
+        mPreference = screen.findPreference(getPreferenceKey());
+    }
+
+    @Override
+    public int getAvailabilityStatus(int subId) {
+        return CONDITIONALLY_UNAVAILABLE;
+        // TODO(b/262195754): Need the intent to enabled the feature.
+//        return mSubscriptionInfoEntity != null && mSubscriptionInfoEntity.isActiveSubscriptionId
+//                && mSubscriptionInfoEntity.isEmbedded ? AVAILABLE
+//                : CONDITIONALLY_UNAVAILABLE;
+    }
+
+    @Override
+    public boolean handlePreferenceTreeClick(Preference preference) {
+        if (!TextUtils.equals(preference.getKey(), getPreferenceKey())) {
+            return false;
+        }
+        // Send intent to launch LPA
+        return true;
+    }
+
+    @VisibleForTesting
+    public void setSubscriptionInfoEntity(SubscriptionInfoEntity subscriptionInfoEntity) {
+        mSubscriptionInfoEntity = subscriptionInfoEntity;
+    }
+}