Refesh mobile network details page on carrier config changes

In general the mobile network details page has several preference
controllers that don't listen to carrier config changes, so instead of
having each one add a listener, we instead just have one listener and
refresh the entire page when we see the broadcast.

Fixes: 135587885
Test: make RunSettingsRoboTests
Change-Id: Iff5b28dbfe12d94c901b442b23cece8e68218983

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

@@ -23,6 +23,7 @@ import android.content.Intent;
 import android.content.IntentFilter;
 import android.os.Bundle;
 import android.provider.Settings;
+import android.telephony.CarrierConfigManager;
 import android.telephony.SubscriptionInfo;
 import android.telephony.SubscriptionManager;
 import android.view.Menu;
@@ -93,13 +94,18 @@ public class MobileNetworkActivity extends SettingsBaseActivity {
             setContentView(R.layout.mobile_network_settings_container);
         }
         setActionBar(findViewById(R.id.mobile_action_bar));
-        mPhoneChangeReceiver = new PhoneChangeReceiver(this, () -> {
+        mPhoneChangeReceiver = new PhoneChangeReceiver(this, new PhoneChangeReceiver.Client() {
-            if (mCurSubscriptionId != SUB_ID_NULL) {
+            @Override
-                // When the radio changes (ex: CDMA->GSM), refresh the fragment.
+            public void onPhoneChange() {
-                // This is very rare.
+                // When the radio or carrier config changes (ex: CDMA->GSM), refresh the fragment.
                 switchFragment(new MobileNetworkSettings(), mCurSubscriptionId,
                         true /* forceUpdate */);
             }
+
+            @Override
+            public int getSubscriptionId() {
+                return mCurSubscriptionId;
+            }
         });
         mSubscriptionManager = getSystemService(SubscriptionManager.class);
         mSubscriptionInfos = mSubscriptionManager.getActiveSubscriptionInfoList(true);
@@ -250,14 +256,12 @@ public class MobileNetworkActivity extends SettingsBaseActivity {
 
     @VisibleForTesting
     static class PhoneChangeReceiver extends BroadcastReceiver {
-        private static final IntentFilter RADIO_TECHNOLOGY_CHANGED_FILTER = new IntentFilter(
-                TelephonyIntents.ACTION_RADIO_TECHNOLOGY_CHANGED);
-
         private Context mContext;
         private Client mClient;
 
         interface Client {
             void onPhoneChange();
+            int getSubscriptionId();
         }
 
         public PhoneChangeReceiver(Context context, Client client) {
@@ -266,7 +270,10 @@ public class MobileNetworkActivity extends SettingsBaseActivity {
         }
 
         public void register() {
-            mContext.registerReceiver(this, RADIO_TECHNOLOGY_CHANGED_FILTER);
+            final IntentFilter intentFilter = new IntentFilter();
+            intentFilter.addAction(TelephonyIntents.ACTION_RADIO_TECHNOLOGY_CHANGED);
+            intentFilter.addAction(CarrierConfigManager.ACTION_CARRIER_CONFIG_CHANGED);
+            mContext.registerReceiver(this, intentFilter);
         }
 
         public void unregister() {
@@ -275,9 +282,17 @@ public class MobileNetworkActivity extends SettingsBaseActivity {
 
         @Override
         public void onReceive(Context context, Intent intent) {
-            if (!isInitialStickyBroadcast()) {
+            if (isInitialStickyBroadcast()) {
+                return;
+            }
+            if (intent.getAction().equals(CarrierConfigManager.ACTION_CARRIER_CONFIG_CHANGED)) {
+                if (!intent.hasExtra(CarrierConfigManager.EXTRA_SUBSCRIPTION_INDEX) ||
+                        intent.getIntExtra(CarrierConfigManager.EXTRA_SUBSCRIPTION_INDEX, -1)
+                                != mClient.getSubscriptionId()) {
+                    return;
+                }
+            }
             mClient.onPhoneChange();
         }
     }
 }
-}

tests/robotests/src/com/android/settings/network/telephony/MobileNetworkActivityTest.java

@@ -22,7 +22,10 @@ import static com.google.common.truth.Truth.assertThat;
 
 import static org.mockito.ArgumentMatchers.eq;
 import static org.mockito.Mockito.doReturn;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
@@ -31,6 +34,7 @@ import android.content.Context;
 import android.content.Intent;
 import android.os.Bundle;
 import android.provider.Settings;
+import android.telephony.CarrierConfigManager;
 import android.telephony.SubscriptionInfo;
 import android.telephony.SubscriptionManager;
 import android.telephony.TelephonyManager;
@@ -161,19 +165,56 @@ public class MobileNetworkActivityTest {
     @Test
     public void phoneChangeReceiver_ignoresStickyBroadcastFromBeforeRegistering() {
         Activity activity = Robolectric.setupActivity(Activity.class);
-        final int[] onChangeCallbackCount = {0};
+        MobileNetworkActivity.PhoneChangeReceiver.Client client = mock(
+                MobileNetworkActivity.PhoneChangeReceiver.Client.class);
         MobileNetworkActivity.PhoneChangeReceiver receiver =
-                new MobileNetworkActivity.PhoneChangeReceiver(activity, () -> {
+                new MobileNetworkActivity.PhoneChangeReceiver(activity, client);
-                    onChangeCallbackCount[0]++;
-                });
         Intent intent = new Intent(TelephonyIntents.ACTION_RADIO_TECHNOLOGY_CHANGED);
         activity.sendStickyBroadcast(intent);
 
         receiver.register();
-        assertThat(onChangeCallbackCount[0]).isEqualTo(0);
+        verify(client, never()).onPhoneChange();
 
         activity.sendStickyBroadcast(intent);
-        assertThat(onChangeCallbackCount[0]).isEqualTo(1);
+        verify(client, times(1)).onPhoneChange();
+    }
+
+    @Test
+    public void phoneChangeReceiver_ignoresCarrierConfigChangeForWrongSubscriptionId() {
+        Activity activity = Robolectric.setupActivity(Activity.class);
+
+        MobileNetworkActivity.PhoneChangeReceiver.Client client = mock(
+                MobileNetworkActivity.PhoneChangeReceiver.Client.class);
+        doReturn(2).when(client).getSubscriptionId();
+
+        MobileNetworkActivity.PhoneChangeReceiver receiver =
+                new MobileNetworkActivity.PhoneChangeReceiver(activity, client);
+
+        receiver.register();
+
+        Intent intent = new Intent(CarrierConfigManager.ACTION_CARRIER_CONFIG_CHANGED);
+        intent.putExtra(CarrierConfigManager.EXTRA_SUBSCRIPTION_INDEX, 3);
+        activity.sendBroadcast(intent);
+        verify(client, never()).onPhoneChange();
+    }
+
+    @Test
+    public void phoneChangeReceiver_dispatchesCarrierConfigChangeForCorrectSubscriptionId() {
+        Activity activity = Robolectric.setupActivity(Activity.class);
+
+        MobileNetworkActivity.PhoneChangeReceiver.Client client = mock(
+                MobileNetworkActivity.PhoneChangeReceiver.Client.class);
+        doReturn(2).when(client).getSubscriptionId();
+
+        MobileNetworkActivity.PhoneChangeReceiver receiver =
+                new MobileNetworkActivity.PhoneChangeReceiver(activity, client);
+
+        receiver.register();
+
+        Intent intent = new Intent(CarrierConfigManager.ACTION_CARRIER_CONFIG_CHANGED);
+        intent.putExtra(CarrierConfigManager.EXTRA_SUBSCRIPTION_INDEX, 2);
+        activity.sendBroadcast(intent);
+        verify(client).onPhoneChange();
     }