Use the fast track calculation for apps.

This replaces the calculation of the apps category
and add in a calculation for the games category using
the faster GID calculation. This should result in app
sizes loading roughly 10 times after.

Bug: 34204877
Test: Settings unit & robo tests
Change-Id: I78044a8d50f695f8c0a7e04183030232a9719260

src/com/android/settings/deviceinfo/StorageDashboardFragment.java

@@ -17,7 +17,9 @@
 package com.android.settings.deviceinfo;
 
 import android.content.Context;
+import android.content.Loader;
 import android.os.Bundle;
+import android.os.UserHandle;
 import android.os.storage.StorageManager;
 import android.os.storage.VolumeInfo;
 import android.provider.SearchIndexableResource;
@@ -27,6 +29,7 @@ import com.android.internal.logging.nano.MetricsProto;
 import com.android.settings.R;
 import com.android.settings.core.PreferenceController;
 import com.android.settings.dashboard.DashboardFragment;
+import com.android.settings.deviceinfo.storage.AppsAsyncLoader;
 import com.android.settings.deviceinfo.storage.StorageItemPreferenceController;
 import com.android.settings.deviceinfo.storage.StorageSummaryDonutPreferenceController;
 import com.android.settings.overlay.FeatureFactory;
@@ -42,6 +45,7 @@ import java.util.List;
 
 public class StorageDashboardFragment extends DashboardFragment {
     private static final String TAG = "StorageDashboardFrag";
+    private static final int APPS_JOB_ID = 0;
 
     private VolumeInfo mVolume;
 
@@ -53,6 +57,12 @@ public class StorageDashboardFragment extends DashboardFragment {
                 && mVolume.isMountedReadable();
     }
 
+    @Override
+    public void onResume() {
+        super.onResume();
+        getLoaderManager().initLoader(APPS_JOB_ID, Bundle.EMPTY, mPreferenceController);
+    }
+
     @Override
     public void onCreate(Bundle icicle) {
         super.onCreate(icicle);

src/com/android/settings/deviceinfo/storage/AppsAsyncLoader.java

@@ -0,0 +1,86 @@
+/*
+ * Copyright (C) 2017 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.deviceinfo.storage;
+
+import android.content.Context;
+import android.content.pm.ApplicationInfo;
+import android.util.ArraySet;
+
+import com.android.settings.applications.PackageManagerWrapper;
+import com.android.settings.utils.AsyncLoader;
+
+import java.util.List;
+
+/**
+ * AppsAsyncLoader is a Loader which loads app storage information and categories it by the app's
+ * specified categorization.
+ */
+public class AppsAsyncLoader extends AsyncLoader<AppsAsyncLoader.AppsStorageResult> {
+    private int mUserId;
+    private String mUuid;
+    private StorageStatsSource mStatsManager;
+    private PackageManagerWrapper mPackageManager;
+
+    public AppsAsyncLoader(Context context, int userId, String uuid, StorageStatsSource source,
+            PackageManagerWrapper pm) {
+        super(context);
+        mUserId = userId;
+        mUuid = uuid;
+        mStatsManager = source;
+        mPackageManager = pm;
+    }
+
+    @Override
+    public AppsStorageResult loadInBackground() {
+        return loadApps();
+    }
+
+    private AppsStorageResult loadApps() {
+        AppsStorageResult result = new AppsStorageResult();
+        ArraySet<Integer> seenUid = new ArraySet<>(); // some apps share a uid
+
+        List<ApplicationInfo> applicationInfos =
+                mPackageManager.getInstalledApplicationsAsUser(0, mUserId);
+        int size = applicationInfos.size();
+        for (int i = 0; i < size; i++) {
+            ApplicationInfo app = applicationInfos.get(i);
+            if (seenUid.contains(app.uid)) {
+                continue;
+            }
+            seenUid.add(app.uid);
+
+            StorageStatsSource.AppStorageStats stats = mStatsManager.getStatsForUid(mUuid, app.uid);
+            // Note: This omits cache intentionally -- we are not attributing it to the apps.
+            long appSize = stats.getCodeBytes() + stats.getDataBytes();
+            if (app.category == ApplicationInfo.CATEGORY_GAME) {
+                result.gamesSize += appSize;
+            } else {
+                result.otherAppsSize += appSize;
+            }
+        }
+        return result;
+    }
+
+    @Override
+    protected void onDiscardResult(AppsStorageResult result) {
+    }
+
+    public static class AppsStorageResult {
+        public long gamesSize;
+        public long otherAppsSize;
+    }
+}

src/com/android/settings/deviceinfo/storage/StorageItemPreferenceController.java

@@ -17,9 +17,12 @@
 package com.android.settings.deviceinfo.storage;
 
 import android.app.Fragment;
+import android.app.LoaderManager;
+import android.app.usage.StorageStatsManager;
 import android.content.ActivityNotFoundException;
 import android.content.Context;
 import android.content.Intent;
+import android.content.Loader;
 import android.os.Bundle;
 import android.os.Environment;
 import android.os.UserHandle;
@@ -35,6 +38,7 @@ import com.android.settings.R;
 import com.android.settings.Settings;
 import com.android.settings.Utils;
 import com.android.settings.applications.ManageApplications;
+import com.android.settings.applications.PackageManagerWrapperImpl;
 import com.android.settings.core.PreferenceController;
 import com.android.settings.core.lifecycle.Lifecycle;
 import com.android.settings.core.lifecycle.LifecycleObserver;
@@ -51,10 +55,12 @@ import java.util.HashMap;
  * categorization breakdown.
  */
 public class StorageItemPreferenceController extends PreferenceController
-        implements StorageMeasurement.MeasurementReceiver, LifecycleObserver, OnDestroy {
+        implements StorageMeasurement.MeasurementReceiver, LifecycleObserver, OnDestroy,
+        LoaderManager.LoaderCallbacks<AppsAsyncLoader.AppsStorageResult> {
     private static final String TAG = "StorageItemPreference";
 
     private static final String IMAGE_MIME_TYPE = "image/*";
+
     @VisibleForTesting
     static final String PHOTO_KEY = "pref_photos_videos";
     @VisibleForTesting
@@ -179,15 +185,6 @@ public class StorageItemPreferenceController extends PreferenceController
             mAudioPreference.setStorageSize(audioSize);
         }
 
-        if (mGamePreference != null) {
-            mGamePreference.setStorageSize(0);
-        }
-
-        final long appSize = details.appsSize.get(mUserId);
-        if (mAppPreference != null) {
-            mAppPreference.setStorageSize(appSize);
-        }
-
         if (mSystemPreference != null) {
             mSystemPreference.setStorageSize(mSystemSize);
         }
@@ -216,6 +213,25 @@ public class StorageItemPreferenceController extends PreferenceController
         mFilePreference = (StorageItemPreferenceAlternate) screen.findPreference(FILES_KEY);
     }
 
+    @Override
+    public Loader<AppsAsyncLoader.AppsStorageResult> onCreateLoader(int id,
+            Bundle args) {
+        return new AppsAsyncLoader(mContext, UserHandle.myUserId(), mVolume.fsUuid,
+                new StorageStatsSource(mContext),
+                new PackageManagerWrapperImpl(mContext.getPackageManager()));
+    }
+
+    @Override
+    public void onLoadFinished(Loader<AppsAsyncLoader.AppsStorageResult> loader,
+            AppsAsyncLoader.AppsStorageResult data) {
+        mGamePreference.setStorageSize(data.gamesSize);
+        mAppPreference.setStorageSize(data.otherAppsSize);
+    }
+
+    @Override
+    public void onLoaderReset(Loader<AppsAsyncLoader.AppsStorageResult> loader) {
+    }
+
     /**
      * Begins an asynchronous storage measurement task for the preferences.
      */

src/com/android/settings/deviceinfo/storage/StorageStatsSource.java

@@ -16,6 +16,7 @@
 
 package com.android.settings.deviceinfo.storage;
 
+import android.app.usage.StorageStats;
 import android.app.usage.StorageStatsManager;
 import android.content.Context;
 import android.os.UserHandle;
@@ -24,14 +25,19 @@ import android.os.UserHandle;
  * StorageStatsSource wraps the StorageStatsManager for testability purposes.
  */
 public class StorageStatsSource {
-    private StorageStatsManager mSsm;
+    private StorageStatsManager mStorageStatsManager;
 
     public StorageStatsSource(Context context) {
-        mSsm = context.getSystemService(StorageStatsManager.class);
+        mStorageStatsManager = context.getSystemService(StorageStatsManager.class);
     }
 
     public ExternalStorageStats getExternalStorageStats(String volumeUuid, UserHandle user) {
-        return new ExternalStorageStats(mSsm.queryExternalStatsForUser(volumeUuid, user));
+        return new ExternalStorageStats(
+                mStorageStatsManager.queryExternalStatsForUser(volumeUuid, user));
+    }
+
+    public AppStorageStats getStatsForUid(String volumeUuid, int uid) {
+        return new AppStorageStatsImpl(mStorageStatsManager.queryStatsForUid(volumeUuid, uid));
     }
 
     public static class ExternalStorageStats {
@@ -55,4 +61,30 @@ public class StorageStatsSource {
             imageBytes = stats.getImageBytes();
         }
     }
+
+    public interface AppStorageStats {
+        long getCodeBytes();
+        long getDataBytes();
+        long getCacheBytes();
+    }
+
+    public static class AppStorageStatsImpl implements AppStorageStats {
+        private StorageStats mStats;
+
+        public AppStorageStatsImpl(StorageStats stats) {
+            mStats = stats;
+        }
+
+        public long getCodeBytes() {
+            return mStats.getCodeBytes();
+        }
+
+        public long getDataBytes() {
+            return mStats.getDataBytes();
+        }
+
+        public long getCacheBytes() {
+            return mStats.getCacheBytes();
+        }
+    }
 }