Don't use ApplicationsState for summaries

Since it grabs a lock that can be slow on the main thread, don't use
ApplicationsState in any of the summaries, instead load the information
directly from the PM.

Change-Id: Ibefe867810d2a9926177a8de4e23a7faea4b1c3b
Fixes: 28435146

src/com/android/settings/applications/AppCounter.java

@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2016 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.applications;
+
+import android.app.AppGlobals;
+import android.content.Context;
+import android.content.pm.ApplicationInfo;
+import android.content.pm.IPackageManager;
+import android.content.pm.PackageManager;
+import android.content.pm.ParceledListSlice;
+import android.content.pm.UserInfo;
+import android.os.AsyncTask;
+import android.os.RemoteException;
+import android.os.UserHandle;
+import android.os.UserManager;
+
+public abstract class AppCounter extends AsyncTask<Void, Void, Integer> {
+
+    protected final PackageManager mPm;
+    protected final IPackageManager mIpm;
+    protected final UserManager mUm;
+
+    public AppCounter(Context context) {
+        mPm = context.getPackageManager();
+        mIpm = AppGlobals.getPackageManager();
+        mUm = UserManager.get(context);
+    }
+
+    @Override
+    protected Integer doInBackground(Void... params) {
+        int count = 0;
+        for (UserInfo user : mUm.getProfiles(UserHandle.myUserId())) {
+            try {
+                @SuppressWarnings("unchecked")
+                ParceledListSlice<ApplicationInfo> list =
+                        mIpm.getInstalledApplications(PackageManager.GET_DISABLED_COMPONENTS
+                                | PackageManager.GET_DISABLED_UNTIL_USED_COMPONENTS
+                                | (user.isAdmin() ? PackageManager.GET_UNINSTALLED_PACKAGES : 0),
+                                user.id);
+                for (ApplicationInfo info : list.getList()) {
+                    if (includeInCount(info)) {
+                        count++;
+                    }
+                }
+            } catch (RemoteException e) {
+            }
+        }
+        return count;
+    }
+
+    @Override
+    protected void onPostExecute(Integer count) {
+        onCountComplete(count);
+    }
+
+    protected abstract void onCountComplete(int num);
+    protected abstract boolean includeInCount(ApplicationInfo info);
+}