Merge "Retrieve apps with recent location access"
diff --git a/packages/SettingsLib/src/com/android/settingslib/location/RecentLocationAccesses.java b/packages/SettingsLib/src/com/android/settingslib/location/RecentLocationAccesses.java
new file mode 100644
index 0000000..9af0670
--- /dev/null
+++ b/packages/SettingsLib/src/com/android/settingslib/location/RecentLocationAccesses.java
@@ -0,0 +1,189 @@
+/*
+ * Copyright (C) 2018 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.AppOpsManager;
+import android.content.Context;
+import android.content.pm.ApplicationInfo;
+import android.content.pm.PackageManager;
+import android.content.pm.PackageManager.NameNotFoundException;
+import android.graphics.drawable.Drawable;
+import android.os.Process;
+import android.os.UserHandle;
+import android.os.UserManager;
+import android.text.format.DateUtils;
+import android.util.IconDrawableFactory;
+import android.util.Log;
+
+import androidx.annotation.VisibleForTesting;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.List;
+
+/**
+ * Retrieves the information of applications which accessed location recently.
+ */
+public class RecentLocationAccesses {
+ private static final String TAG = RecentLocationAccesses.class.getSimpleName();
+ @VisibleForTesting
+ static final String ANDROID_SYSTEM_PACKAGE_NAME = "android";
+
+ // Keep last 24 hours of location app information.
+ private static final long RECENT_TIME_INTERVAL_MILLIS = DateUtils.DAY_IN_MILLIS;
+
+ @VisibleForTesting
+ static final int[] LOCATION_OPS = new int[]{
+ AppOpsManager.OP_FINE_LOCATION,
+ AppOpsManager.OP_COARSE_LOCATION,
+ };
+
+ private final PackageManager mPackageManager;
+ private final Context mContext;
+ private final IconDrawableFactory mDrawableFactory;
+
+ public RecentLocationAccesses(Context context) {
+ mContext = context;
+ mPackageManager = context.getPackageManager();
+ mDrawableFactory = IconDrawableFactory.newInstance(context);
+ }
+
+ /**
+ * Fills a list of applications which queried location recently within specified time.
+ * Apps are sorted by recency. Apps with more recent location accesses are in the front.
+ */
+ public List<Access> 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);
+
+ final int appOpsCount = appOps != null ? appOps.size() : 0;
+
+ // Process the AppOps list and generate a preference list.
+ ArrayList<Access> accesses = new ArrayList<>(appOpsCount);
+ final long now = System.currentTimeMillis();
+ final UserManager um = (UserManager) mContext.getSystemService(Context.USER_SERVICE);
+ final List<UserHandle> profiles = um.getUserProfiles();
+
+ for (int i = 0; i < appOpsCount; ++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;
+ }
+ Access access = getAccessFromOps(now, ops);
+ if (access != null) {
+ accesses.add(access);
+ }
+ }
+ return accesses;
+ }
+
+ public List<Access> getAppListSorted() {
+ List<Access> accesses = getAppList();
+ // Sort the list of Access by recency. Most recent accesses first.
+ Collections.sort(accesses, Collections.reverseOrder(new Comparator<Access>() {
+ @Override
+ public int compare(Access access1, Access access2) {
+ return Long.compare(access1.accessFinishTime, access2.accessFinishTime);
+ }
+ }));
+ return accesses;
+ }
+
+ /**
+ * Creates a Access 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 Access object for the package
+ */
+ private Access getAccessFromOps(long now,
+ AppOpsManager.PackageOps ops) {
+ String packageName = ops.getPackageName();
+ List<AppOpsManager.OpEntry> entries = ops.getOps();
+ long locationAccessFinishTime = 0L;
+ // Earliest time for a location access to end and still be shown in list.
+ long recentLocationCutoffTime = now - RECENT_TIME_INTERVAL_MILLIS;
+ for (AppOpsManager.OpEntry entry : entries) {
+ locationAccessFinishTime = Math.max(entry.getLastAccessBackgroundTime(),
+ entry.getLastAccessForegroundTime());
+ }
+ // Bail out if the entry is out of date.
+ if (locationAccessFinishTime < recentLocationCutoffTime) {
+ return null;
+ }
+
+ // The package is fresh enough, continue.
+ int uid = ops.getUid();
+ int userId = UserHandle.getUserId(uid);
+
+ Access access = null;
+ try {
+ ApplicationInfo appInfo = mPackageManager.getApplicationInfoAsUser(
+ 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 icon = mDrawableFactory.getBadgedIcon(appInfo, userId);
+ 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;
+ }
+ access = new Access(packageName, userHandle, icon, appLabel, badgedAppLabel,
+ locationAccessFinishTime);
+ } catch (NameNotFoundException e) {
+ Log.w(TAG, "package name not found for " + packageName + ", userId " + userId);
+ }
+ return access;
+ }
+
+ public static class Access {
+ public final String packageName;
+ public final UserHandle userHandle;
+ public final Drawable icon;
+ public final CharSequence label;
+ public final CharSequence contentDescription;
+ public final long accessFinishTime;
+
+ private Access(String packageName, UserHandle userHandle, Drawable icon,
+ CharSequence label, CharSequence contentDescription,
+ long accessFinishTime) {
+ this.packageName = packageName;
+ this.userHandle = userHandle;
+ this.icon = icon;
+ this.label = label;
+ this.contentDescription = contentDescription;
+ this.accessFinishTime = accessFinishTime;
+ }
+ }
+}