Merge "Show footer to notify user no 5G in DSDS mode." into rvc-dev am: b0a5905d08

Change-Id: Id7cec642292dab8ec19bb33ab8247d7f3b0d2865

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

@@ -141,6 +141,7 @@ public class MobileNetworkSettings extends RestrictedDashboardFragment {
         use(DeleteSimProfilePreferenceController.class).init(mSubId, this,
                 REQUEST_CODE_DELETE_SUBSCRIPTION);
         use(DisableSimFooterPreferenceController.class).init(mSubId);
+        use(NrDisabledInDsdsFooterPreferenceController.class).init(mSubId);
         use(MobileDataPreferenceController.class).init(getFragmentManager(), mSubId);
         use(RoamingPreferenceController.class).init(getFragmentManager(), mSubId);
         use(ApnPreferenceController.class).init(mSubId);

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

@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2020 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.telephony.SubscriptionManager;
+import android.telephony.TelephonyManager;
+
+import com.android.settings.core.BasePreferenceController;
+
+/**
+ * Class to show the footer that can't connect to 5G when device is in DSDS mode.
+ */
+public class NrDisabledInDsdsFooterPreferenceController extends BasePreferenceController {
+    private int mSubId;
+
+    /**
+     * Constructor.
+     */
+    public NrDisabledInDsdsFooterPreferenceController(Context context, String preferenceKey) {
+        super(context, preferenceKey);
+        mSubId = SubscriptionManager.INVALID_SUBSCRIPTION_ID;
+    }
+
+    /**
+     * Init and specify a subId.
+     */
+    public void init(int subId) {
+        mSubId = subId;
+    }
+
+    @Override
+    public int getAvailabilityStatus() {
+        if (mSubId == SubscriptionManager.INVALID_SUBSCRIPTION_ID) {
+            return CONDITIONALLY_UNAVAILABLE;
+        }
+
+        final TelephonyManager teleManager = ((TelephonyManager)
+                mContext.getSystemService(Context.TELEPHONY_SERVICE))
+                .createForSubscriptionId(mSubId);
+        // Show the footer only when DSDS is enabled, and mobile data is enabled on this SIM, and
+        // 5G is supported on this device.
+        if (!teleManager.isDataEnabled() || teleManager.getActiveModemCount() < 2
+                || !is5GSupportedByRadio(teleManager)) {
+            return CONDITIONALLY_UNAVAILABLE;
+        }
+        return AVAILABLE;
+    }
+
+    private boolean is5GSupportedByRadio(TelephonyManager tm) {
+        return (tm.getSupportedRadioAccessFamily() & TelephonyManager.NETWORK_TYPE_BITMASK_NR) > 0;
+    }
+}