Only show mobile data usage information when mobile data is enabled.

Bug: 70950124

Test: manual
Test: make RunSettingsRoboTests
Change-Id: I4eb774120cbcf50f40d22c7c8c3caeb0eacbbed3

src/com/android/settings/datausage/DataUsageSummary.java

@@ -103,18 +103,10 @@ public class DataUsageSummary extends DataUsageBaseFragment implements Indexable
             removePreference(KEY_RESTRICT_BACKGROUND);
         }
         if (hasMobileData) {
-            List<SubscriptionInfo> subscriptions =
-                    services.mSubscriptionManager.getActiveSubscriptionInfoList();
-            if (subscriptions == null || subscriptions.size() == 0) {
-                addMobileSection(defaultSubId);
-            }
-            for (int i = 0; subscriptions != null && i < subscriptions.size(); i++) {
-                SubscriptionInfo subInfo = subscriptions.get(i);
-                if (subscriptions.size() > 1) {
-                    addMobileSection(subInfo.getSubscriptionId(), subInfo);
-                } else {
-                    addMobileSection(subInfo.getSubscriptionId());
-                }
+            SubscriptionInfo subInfo
+                    = services.mSubscriptionManager.getDefaultDataSubscriptionInfo();
+            if (subInfo != null) {
+                addMobileSection(subInfo.getSubscriptionId());
             }
         }
         boolean hasWifiRadio = DataUsageUtils.hasWifiRadio(context);

src/com/android/settings/datausage/DataUsageSummaryPreferenceController.java

@@ -37,7 +37,6 @@ import android.util.RecurrenceRule;
 import com.android.internal.util.CollectionUtils;
 import com.android.settings.R;
 import com.android.settings.core.BasePreferenceController;
-import com.android.settings.core.FeatureFlags;
 import com.android.settingslib.NetworkPolicyEditor;
 import com.android.settingslib.net.DataUsageController;
 
@@ -150,7 +149,8 @@ public class DataUsageSummaryPreferenceController extends BasePreferenceControll
 
     @Override
     public int getAvailabilityStatus() {
-        return AVAILABLE;
+        return mSubscriptionManager.getDefaultDataSubscriptionInfo() != null
+                ? AVAILABLE : DISABLED_UNSUPPORTED;
     }
 
     @Override

tests/robotests/src/com/android/settings/datausage/DataUsageSummaryPreferenceControllerTest.java

@@ -16,6 +16,9 @@
 
 package com.android.settings.datausage;
 
+import static com.android.settings.core.BasePreferenceController.AVAILABLE;
+import static com.android.settings.core.BasePreferenceController.DISABLED_UNSUPPORTED;
+import static com.google.common.truth.Truth.assertThat;
 import static org.mockito.Matchers.any;
 import static org.mockito.Mockito.doReturn;
 import static org.mockito.Mockito.spy;
@@ -25,6 +28,8 @@ import static org.mockito.Mockito.when;
 import android.content.Context;
 import android.content.Intent;
 import android.net.NetworkTemplate;
+import android.telephony.SubscriptionInfo;
+import android.telephony.SubscriptionManager;
 
 import com.android.settings.R;
 import com.android.settings.testutils.SettingsRobolectricTestRunner;
@@ -61,6 +66,8 @@ public class DataUsageSummaryPreferenceControllerTest {
     private NetworkPolicyEditor mPolicyEditor;
     @Mock
     private NetworkTemplate mNetworkTemplate;
+    @Mock
+    private SubscriptionManager mSubscriptionManager;
 
     private Context mContext;
     private DataUsageSummaryPreferenceController mController;
@@ -230,6 +237,40 @@ public class DataUsageSummaryPreferenceControllerTest {
         verify(mSummaryPreference).setLimitInfo("1.00 MB data warning / 1.00 MB data limit");
     }
 
+    @Test
+    public void testMobileData_preferenceAvailable() {
+        mController = new DataUsageSummaryPreferenceController(
+                mContext,
+                mDataUsageController,
+                mDataInfoController,
+                mNetworkTemplate,
+                mPolicyEditor,
+                R.string.cell_data_template,
+                true,
+                mSubscriptionManager);
+
+        final SubscriptionInfo subInfo = new SubscriptionInfo(0, "123456", 0, "name", "carrier",
+                0, 0, "number", 0, null, 123, 456, "ZX");
+        when(mSubscriptionManager.getDefaultDataSubscriptionInfo()).thenReturn(subInfo);
+        assertThat(mController.getAvailabilityStatus()).isEqualTo(AVAILABLE);
+    }
+
+    @Test
+    public void testMobileData_preferenceDisabled() {
+        mController = new DataUsageSummaryPreferenceController(
+                mContext,
+                mDataUsageController,
+                mDataInfoController,
+                mNetworkTemplate,
+                mPolicyEditor,
+                R.string.cell_data_template,
+                true,
+                mSubscriptionManager);
+
+        when(mSubscriptionManager.getDefaultDataSubscriptionInfo()).thenReturn(null);
+        assertThat(mController.getAvailabilityStatus()).isEqualTo(DISABLED_UNSUPPORTED);
+    }
+
     private DataUsageController.DataUsageInfo createTestDataUsageInfo(long now) {
         DataUsageController.DataUsageInfo info = new DataUsageController.DataUsageInfo();
         info.carrier = CARRIER_NAME;