Move RecentLocationApps to SettingsLib
Change-Id: I73c7c7a2436a6af9f5353a20ea7afc4f6e57b485
diff --git a/packages/SettingsLib/src/com/android/settingslib/location/RecentLocationApps.java b/packages/SettingsLib/src/com/android/settingslib/location/RecentLocationApps.java
new file mode 100644
index 0000000..f03e94d
--- /dev/null
+++ b/packages/SettingsLib/src/com/android/settingslib/location/RecentLocationApps.java
@@ -0,0 +1,185 @@
+/*
+ * Copyright (C) 2015 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.settingslib.location;
+
+import android.app.AppGlobals;
+import android.app.AppOpsManager;
+import android.content.Context;
+import android.content.pm.ApplicationInfo;
+import android.content.pm.IPackageManager;
+import android.content.pm.PackageManager;
+import android.graphics.drawable.Drawable;
+import android.os.Process;
+import android.os.RemoteException;
+import android.os.UserHandle;
+import android.os.UserManager;
+import android.util.Log;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Retrieves the information of applications which accessed location recently.
+ */
+public class RecentLocationApps {
+ private static final String TAG = RecentLocationApps.class.getSimpleName();
+ private static final String ANDROID_SYSTEM_PACKAGE_NAME = "android";
+
+ private static final int RECENT_TIME_INTERVAL_MILLIS = 15 * 60 * 1000;
+
+ private static final int[] LOCATION_OPS = new int[] {
+ AppOpsManager.OP_MONITOR_LOCATION,
+ AppOpsManager.OP_MONITOR_HIGH_POWER_LOCATION,
+ };
+
+ private final PackageManager mPackageManager;
+ private final Context mContext;
+
+ public RecentLocationApps(Context context) {
+ mContext = context;
+ mPackageManager = context.getPackageManager();
+ }
+
+ /**
+ * Fills a list of applications which queried location recently within specified time.
+ */
+ public List<Request> getAppList() {
+ // Retrieve a location usage list from AppOps
+ AppOpsManager aoManager =
+ (AppOpsManager) mContext.getSystemService(Context.APP_OPS_SERVICE);
+ List<AppOpsManager.PackageOps> appOps = aoManager.getPackagesForOps(LOCATION_OPS);
+
+ // Process the AppOps list and generate a preference list.
+ ArrayList<Request> requests = new ArrayList<>(appOps.size());
+ final long now = System.currentTimeMillis();
+ final UserManager um = (UserManager) mContext.getSystemService(Context.USER_SERVICE);
+ final List<UserHandle> profiles = um.getUserProfiles();
+
+ final int appOpsN = appOps.size();
+ for (int i = 0; i < appOpsN; ++i) {
+ AppOpsManager.PackageOps ops = appOps.get(i);
+ // Don't show the Android System in the list - it's not actionable for the user.
+ // Also don't show apps belonging to background users except managed users.
+ String packageName = ops.getPackageName();
+ int uid = ops.getUid();
+ int userId = UserHandle.getUserId(uid);
+ boolean isAndroidOs =
+ (uid == Process.SYSTEM_UID) && ANDROID_SYSTEM_PACKAGE_NAME.equals(packageName);
+ if (isAndroidOs || !profiles.contains(new UserHandle(userId))) {
+ continue;
+ }
+ Request request = getRequestFromOps(now, ops);
+ if (request != null) {
+ requests.add(request);
+ }
+ }
+
+ return requests;
+ }
+
+ /**
+ * Creates a Request entry for the given PackageOps.
+ *
+ * This method examines the time interval of the PackageOps first. If the PackageOps is older
+ * than the designated interval, this method ignores the PackageOps object and returns null.
+ * When the PackageOps is fresh enough, this method returns a Request object for the package
+ */
+ private Request getRequestFromOps(long now,
+ AppOpsManager.PackageOps ops) {
+ String packageName = ops.getPackageName();
+ List<AppOpsManager.OpEntry> entries = ops.getOps();
+ boolean highBattery = false;
+ boolean normalBattery = false;
+ // Earliest time for a location request to end and still be shown in list.
+ long recentLocationCutoffTime = now - RECENT_TIME_INTERVAL_MILLIS;
+ for (AppOpsManager.OpEntry entry : entries) {
+ if (entry.isRunning() || entry.getTime() >= recentLocationCutoffTime) {
+ switch (entry.getOp()) {
+ case AppOpsManager.OP_MONITOR_LOCATION:
+ normalBattery = true;
+ break;
+ case AppOpsManager.OP_MONITOR_HIGH_POWER_LOCATION:
+ highBattery = true;
+ break;
+ default:
+ break;
+ }
+ }
+ }
+
+ if (!highBattery && !normalBattery) {
+ if (Log.isLoggable(TAG, Log.VERBOSE)) {
+ Log.v(TAG, packageName + " hadn't used location within the time interval.");
+ }
+ return null;
+ }
+
+ // The package is fresh enough, continue.
+
+ int uid = ops.getUid();
+ int userId = UserHandle.getUserId(uid);
+
+ Request request = null;
+ try {
+ IPackageManager ipm = AppGlobals.getPackageManager();
+ ApplicationInfo appInfo =
+ ipm.getApplicationInfo(packageName, PackageManager.GET_META_DATA, userId);
+ if (appInfo == null) {
+ Log.w(TAG, "Null application info retrieved for package " + packageName
+ + ", userId " + userId);
+ return null;
+ }
+
+ final UserHandle userHandle = new UserHandle(userId);
+ Drawable appIcon = mPackageManager.getApplicationIcon(appInfo);
+ Drawable icon = mPackageManager.getUserBadgedIcon(appIcon, userHandle);
+ CharSequence appLabel = mPackageManager.getApplicationLabel(appInfo);
+ CharSequence badgedAppLabel = mPackageManager.getUserBadgedLabel(appLabel, userHandle);
+ if (appLabel.toString().contentEquals(badgedAppLabel)) {
+ // If badged label is not different from original then no need for it as
+ // a separate content description.
+ badgedAppLabel = null;
+ }
+ request = new Request(packageName, userHandle, icon, appLabel, highBattery,
+ badgedAppLabel);
+ } catch (RemoteException e) {
+ Log.w(TAG, "Error while retrieving application info for package " + packageName
+ + ", userId " + userId, e);
+ }
+
+ return request;
+ }
+
+ public static class Request {
+ public final String packageName;
+ public final UserHandle userHandle;
+ public final Drawable icon;
+ public final CharSequence label;
+ public final boolean isHighBattery;
+ public final CharSequence contentDescription;
+
+ private Request(String packageName, UserHandle userHandle, Drawable icon,
+ CharSequence label, boolean isHighBattery, CharSequence contentDescription) {
+ this.packageName = packageName;
+ this.userHandle = userHandle;
+ this.icon = icon;
+ this.label = label;
+ this.isHighBattery = isHighBattery;
+ this.contentDescription = contentDescription;
+ }
+ }
+}