211 lines
8.5 KiB
Java
211 lines
8.5 KiB
Java
/*
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* Copyright (C) 2013 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.settings.location;
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import android.app.AppGlobals;
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import android.app.AppOpsManager;
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import android.content.Context;
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import android.content.pm.ApplicationInfo;
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import android.content.pm.PackageManager;
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import android.content.pm.IPackageManager;
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import android.content.res.Resources;
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import android.graphics.drawable.Drawable;
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import android.os.Bundle;
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import android.os.Process;
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import android.os.RemoteException;
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import android.os.UserHandle;
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import android.os.UserManager;
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import android.preference.Preference;
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import android.util.Log;
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import com.android.settings.R;
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import com.android.settings.SettingsActivity;
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import com.android.settings.applications.InstalledAppDetails;
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import java.util.ArrayList;
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import java.util.List;
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/**
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* Retrieves the information of applications which accessed location recently.
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*/
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public class RecentLocationApps {
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private static final String TAG = RecentLocationApps.class.getSimpleName();
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private static final String ANDROID_SYSTEM_PACKAGE_NAME = "android";
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private static final int RECENT_TIME_INTERVAL_MILLIS = 15 * 60 * 1000;
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private final SettingsActivity mActivity;
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private final PackageManager mPackageManager;
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public RecentLocationApps(SettingsActivity activity) {
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mActivity = activity;
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mPackageManager = activity.getPackageManager();
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}
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private class PackageEntryClickedListener
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implements Preference.OnPreferenceClickListener {
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private String mPackage;
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private UserHandle mUserHandle;
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public PackageEntryClickedListener(String packageName, UserHandle userHandle) {
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mPackage = packageName;
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mUserHandle = userHandle;
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}
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@Override
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public boolean onPreferenceClick(Preference preference) {
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// start new fragment to display extended information
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Bundle args = new Bundle();
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args.putString(InstalledAppDetails.ARG_PACKAGE_NAME, mPackage);
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mActivity.startPreferencePanelAsUser(InstalledAppDetails.class.getName(), args,
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R.string.application_info_label, null, mUserHandle);
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return true;
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}
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}
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private DimmableIconPreference createRecentLocationEntry(
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Drawable icon,
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CharSequence label,
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boolean isHighBattery,
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CharSequence contentDescription,
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Preference.OnPreferenceClickListener listener) {
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DimmableIconPreference pref = new DimmableIconPreference(mActivity, contentDescription);
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pref.setIcon(icon);
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pref.setTitle(label);
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if (isHighBattery) {
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pref.setSummary(R.string.location_high_battery_use);
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} else {
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pref.setSummary(R.string.location_low_battery_use);
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}
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pref.setOnPreferenceClickListener(listener);
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return pref;
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}
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/**
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* Fills a list of applications which queried location recently within specified time.
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*/
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public List<Preference> getAppList() {
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// Retrieve a location usage list from AppOps
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AppOpsManager aoManager =
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(AppOpsManager) mActivity.getSystemService(Context.APP_OPS_SERVICE);
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List<AppOpsManager.PackageOps> appOps = aoManager.getPackagesForOps(new int[] {
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AppOpsManager.OP_MONITOR_LOCATION, AppOpsManager.OP_MONITOR_HIGH_POWER_LOCATION, });
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// Process the AppOps list and generate a preference list.
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ArrayList<Preference> prefs = new ArrayList<Preference>();
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final long now = System.currentTimeMillis();
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final UserManager um = (UserManager) mActivity.getSystemService(Context.USER_SERVICE);
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final List<UserHandle> profiles = um.getUserProfiles();
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final int appOpsN = appOps.size();
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for (int i = 0; i < appOpsN; ++i) {
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AppOpsManager.PackageOps ops = appOps.get(i);
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// Don't show the Android System in the list - it's not actionable for the user.
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// Also don't show apps belonging to background users except managed users.
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String packageName = ops.getPackageName();
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int uid = ops.getUid();
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int userId = UserHandle.getUserId(uid);
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boolean isAndroidOs =
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(uid == Process.SYSTEM_UID) && ANDROID_SYSTEM_PACKAGE_NAME.equals(packageName);
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if (isAndroidOs || !profiles.contains(new UserHandle(userId))) {
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continue;
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}
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Preference preference = getPreferenceFromOps(um, now, ops);
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if (preference != null) {
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prefs.add(preference);
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}
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}
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return prefs;
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}
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/**
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* Creates a Preference entry for the given PackageOps.
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*
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* This method examines the time interval of the PackageOps first. If the PackageOps is older
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* than the designated interval, this method ignores the PackageOps object and returns null.
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* When the PackageOps is fresh enough, this method returns a Preference pointing to the App
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* Info page for that package.
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*/
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private Preference getPreferenceFromOps(final UserManager um, long now,
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AppOpsManager.PackageOps ops) {
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String packageName = ops.getPackageName();
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List<AppOpsManager.OpEntry> entries = ops.getOps();
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boolean highBattery = false;
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boolean normalBattery = false;
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// Earliest time for a location request to end and still be shown in list.
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long recentLocationCutoffTime = now - RECENT_TIME_INTERVAL_MILLIS;
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for (AppOpsManager.OpEntry entry : entries) {
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if (entry.isRunning() || entry.getTime() >= recentLocationCutoffTime) {
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switch (entry.getOp()) {
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case AppOpsManager.OP_MONITOR_LOCATION:
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normalBattery = true;
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break;
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case AppOpsManager.OP_MONITOR_HIGH_POWER_LOCATION:
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highBattery = true;
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break;
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default:
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break;
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}
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}
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}
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if (!highBattery && !normalBattery) {
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if (Log.isLoggable(TAG, Log.VERBOSE)) {
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Log.v(TAG, packageName + " hadn't used location within the time interval.");
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}
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return null;
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}
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// The package is fresh enough, continue.
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int uid = ops.getUid();
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int userId = UserHandle.getUserId(uid);
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DimmableIconPreference preference = null;
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try {
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IPackageManager ipm = AppGlobals.getPackageManager();
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ApplicationInfo appInfo =
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ipm.getApplicationInfo(packageName, PackageManager.GET_META_DATA, userId);
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if (appInfo == null) {
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Log.w(TAG, "Null application info retrieved for package " + packageName
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+ ", userId " + userId);
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return null;
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}
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Resources res = mActivity.getResources();
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final UserHandle userHandle = new UserHandle(userId);
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Drawable appIcon = mPackageManager.getApplicationIcon(appInfo);
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Drawable icon = mPackageManager.getUserBadgedIcon(appIcon, userHandle);
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CharSequence appLabel = mPackageManager.getApplicationLabel(appInfo);
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CharSequence badgedAppLabel = mPackageManager.getUserBadgedLabel(appLabel, userHandle);
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if (appLabel.toString().contentEquals(badgedAppLabel)) {
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// If badged label is not different from original then no need for it as
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// a separate content description.
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badgedAppLabel = null;
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}
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preference = createRecentLocationEntry(icon,
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appLabel, highBattery, badgedAppLabel,
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new PackageEntryClickedListener(packageName, userHandle));
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} catch (RemoteException e) {
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Log.w(TAG, "Error while retrieving application info for package " + packageName
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+ ", userId " + userId, e);
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}
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return preference;
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}
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}
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