Check for Data Usage intent before populating "Data Usage" summary.

On some devices, data usage is not available; thus, it is possible that
ACTION_DATA_USAGE_SETTINGS has no matching activity. If no matching
activity is found, we should not populate "data usage" in the summary
field.

Bug: 111398942
Test: Manual check. I see that data usage is no longer visible on
devices without Data Usage activity.
Test: make RunSettingsRoboTests

Change-Id: I838206b76497c6550ef4826ad19e605cd32906ee

src/com/android/settings/network/NetworkDashboardFragment.java

@@ -15,12 +15,15 @@
  */
 package com.android.settings.network;
 
+import static android.provider.Settings.ACTION_DATA_USAGE_SETTINGS;
 import static com.android.settings.network.MobilePlanPreferenceController
         .MANAGE_MOBILE_PLAN_DIALOG_ID;
 
 import android.app.Activity;
 import android.app.Dialog;
 import android.content.Context;
+import android.content.Intent;
+import android.content.pm.PackageManager;
 import android.icu.text.ListFormatter;
 import android.provider.SearchIndexableResource;
 import android.text.BidiFormatter;
@@ -45,6 +48,7 @@ import com.android.settingslib.search.SearchIndexable;
 
 import java.util.ArrayList;
 import java.util.Arrays;
+import java.util.function.BooleanSupplier;
 import java.util.List;
 
 @SearchIndexable
@@ -158,24 +162,32 @@ public class NetworkDashboardFragment extends DashboardFragment implements
         private final WifiMasterSwitchPreferenceController mWifiPreferenceController;
         private final MobileNetworkPreferenceController mMobileNetworkPreferenceController;
         private final TetherPreferenceController mTetherPreferenceController;
+        private final BooleanSupplier mHasDataUsageActivity;
 
         public SummaryProvider(Context context, SummaryLoader summaryLoader) {
             this(context, summaryLoader,
                     new WifiMasterSwitchPreferenceController(context, null),
                     new MobileNetworkPreferenceController(context),
-                    new TetherPreferenceController(context, null /* lifecycle */));
+                    new TetherPreferenceController(context, null /* lifecycle */),
+                    () -> {
+                        final Intent intent = new Intent(ACTION_DATA_USAGE_SETTINGS);
+                        final PackageManager pm = context.getPackageManager();
+                        return intent.resolveActivity(pm) != null;
+                    });
         }
 
         @VisibleForTesting(otherwise = VisibleForTesting.NONE)
         SummaryProvider(Context context, SummaryLoader summaryLoader,
                 WifiMasterSwitchPreferenceController wifiPreferenceController,
                 MobileNetworkPreferenceController mobileNetworkPreferenceController,
-                TetherPreferenceController tetherPreferenceController) {
+                TetherPreferenceController tetherPreferenceController,
+                BooleanSupplier hasDataUsageActivity) {
             mContext = context;
             mSummaryLoader = summaryLoader;
             mWifiPreferenceController = wifiPreferenceController;
             mMobileNetworkPreferenceController = mobileNetworkPreferenceController;
             mTetherPreferenceController = tetherPreferenceController;
+            mHasDataUsageActivity = hasDataUsageActivity;
         }
 
 
@@ -198,7 +210,7 @@ public class NetworkDashboardFragment extends DashboardFragment implements
                 if (mMobileNetworkPreferenceController.isAvailable() && !TextUtils.isEmpty(mobileSummary)) {
                     summaries.add(mobileSummary);
                 }
-                if (!TextUtils.isEmpty(dataUsageSummary)) {
+                if (!TextUtils.isEmpty(dataUsageSummary) && mHasDataUsageActivity.getAsBoolean()) {
                     summaries.add(dataUsageSummary);
                 }
                 if (mTetherPreferenceController.isAvailable() && !TextUtils.isEmpty(hotspotSummary)) {

tests/robotests/src/com/android/settings/network/NetworkDashboardFragmentTest.java

@@ -79,7 +79,7 @@ public class NetworkDashboardFragmentTest {
         final SummaryLoader.SummaryProvider provider =
                 new NetworkDashboardFragment.SummaryProvider(mContext, summaryLoader,
                         wifiPreferenceController, mobileNetworkPreferenceController,
-                        tetherPreferenceController);
+                        tetherPreferenceController, () -> true);
 
         provider.setListening(false);
 
@@ -107,7 +107,7 @@ public class NetworkDashboardFragmentTest {
         final SummaryLoader.SummaryProvider provider =
                 new NetworkDashboardFragment.SummaryProvider(mContext, summaryLoader,
                         wifiPreferenceController, mobileNetworkPreferenceController,
-                        tetherPreferenceController);
+                        tetherPreferenceController, () -> true);
 
         provider.setListening(false);
 
@@ -121,4 +121,34 @@ public class NetworkDashboardFragmentTest {
 
         verify(summaryLoader).setSummary(provider, "Wi\u2011Fi and data usage");
     }
+
+    @Test
+    public void summaryProviderSetListening_noDataUsageActivity_shouldReturnNoDataUsageSummary() {
+        final WifiMasterSwitchPreferenceController wifiPreferenceController =
+                mock(WifiMasterSwitchPreferenceController.class);
+        final MobileNetworkPreferenceController mobileNetworkPreferenceController =
+                mock(MobileNetworkPreferenceController.class);
+        final TetherPreferenceController tetherPreferenceController =
+                mock(TetherPreferenceController.class);
+
+        final SummaryLoader summaryLoader = mock(SummaryLoader.class);
+        final SummaryLoader.SummaryProvider provider =
+                new NetworkDashboardFragment.SummaryProvider(mContext, summaryLoader,
+                        wifiPreferenceController, mobileNetworkPreferenceController,
+                        tetherPreferenceController, () -> false);
+
+        provider.setListening(false);
+
+        verifyZeroInteractions(summaryLoader);
+
+        when(wifiPreferenceController.isAvailable()).thenReturn(true);
+        when(mobileNetworkPreferenceController.isAvailable()).thenReturn(true);
+        when(tetherPreferenceController.isAvailable()).thenReturn(true);
+
+        provider.setListening(true);
+
+        verify(summaryLoader).setSummary(provider, "Wi\u2011Fi, mobile, and hotspot");
+    }
+
+
 }