/** * Copyright (C) 2007 Google Inc. * * 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; import android.annotation.NonNull; import android.annotation.Nullable; import android.app.ActivityManager; import android.app.ActivityManagerNative; import android.app.AlertDialog; import android.app.AppGlobals; import android.app.Dialog; import android.app.Fragment; import android.app.IActivityManager; import android.app.KeyguardManager; import android.app.admin.DevicePolicyManager; import android.content.ComponentName; import android.content.ContentResolver; import android.content.Context; import android.content.DialogInterface; import android.content.Intent; import android.content.IntentFilter; import android.content.pm.ApplicationInfo; import android.content.pm.IPackageManager; import android.content.pm.IntentFilterVerificationInfo; import android.content.pm.PackageManager; import android.content.pm.PackageManager.NameNotFoundException; import android.content.pm.ResolveInfo; import android.content.pm.UserInfo; import android.content.res.Resources; import android.content.res.TypedArray; import android.database.Cursor; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.net.ConnectivityManager; import android.net.LinkProperties; import android.net.Uri; import android.os.BatteryManager; import android.os.Bundle; import android.os.IBinder; import android.os.INetworkManagementService; import android.os.Looper; import android.os.RemoteException; import android.os.ServiceManager; import android.os.UserHandle; import android.os.UserManager; import android.os.storage.StorageManager; import android.preference.PreferenceFrameLayout; import android.provider.ContactsContract.CommonDataKinds; import android.provider.ContactsContract.Contacts; import android.provider.ContactsContract.Data; import android.provider.ContactsContract.Profile; import android.provider.ContactsContract.RawContacts; import android.provider.Settings; import android.service.persistentdata.PersistentDataBlockManager; import android.support.v7.preference.Preference; import android.support.v7.preference.PreferenceGroup; import android.support.v7.preference.PreferenceManager; import android.support.v7.preference.PreferenceScreen; import android.telephony.TelephonyManager; import android.text.Spannable; import android.text.SpannableString; import android.text.TextUtils; import android.text.format.DateUtils; import android.text.style.TtsSpan; import android.util.ArraySet; import android.util.Log; import android.util.SparseArray; import android.util.TypedValue; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.view.animation.Animation; import android.view.animation.Animation.AnimationListener; import android.view.animation.AnimationUtils; import android.widget.ListView; import android.widget.TabWidget; import com.android.internal.app.UnlaunchableAppActivity; import com.android.internal.util.ArrayUtils; import com.android.internal.util.UserIcons; import com.android.internal.widget.LockPatternUtils; import java.io.IOException; import java.io.InputStream; import java.net.InetAddress; import java.util.ArrayList; import java.util.Iterator; import java.util.List; import java.util.Locale; import static android.content.Intent.EXTRA_USER; import static android.content.Intent.EXTRA_USER_ID; import static android.text.format.DateUtils.FORMAT_ABBREV_MONTH; import static android.text.format.DateUtils.FORMAT_SHOW_DATE; public final class Utils extends com.android.settingslib.Utils { private static final String TAG = "Settings"; /** * Set the preference's title to the matching activity's label. */ public static final int UPDATE_PREFERENCE_FLAG_SET_TITLE_TO_MATCHING_ACTIVITY = 1; /** * The opacity level of a disabled icon. */ public static final float DISABLED_ALPHA = 0.4f; /** * Color spectrum to use to indicate badness. 0 is completely transparent (no data), * 1 is most bad (red), the last value is least bad (green). */ public static final int[] BADNESS_COLORS = new int[] { 0x00000000, 0xffc43828, 0xffe54918, 0xfff47b00, 0xfffabf2c, 0xff679e37, 0xff0a7f42 }; private static final String SETTINGS_PACKAGE_NAME = "com.android.settings"; private static final int SECONDS_PER_MINUTE = 60; private static final int SECONDS_PER_HOUR = 60 * 60; private static final int SECONDS_PER_DAY = 24 * 60 * 60; public static final String OS_PKG = "os"; private static SparseArray sDarkDefaultUserBitmapCache = new SparseArray(); /** * Finds a matching activity for a preference's intent. If a matching * activity is not found, it will remove the preference. * * @param context The context. * @param parentPreferenceGroup The preference group that contains the * preference whose intent is being resolved. * @param preferenceKey The key of the preference whose intent is being * resolved. * @param flags 0 or one or more of * {@link #UPDATE_PREFERENCE_FLAG_SET_TITLE_TO_MATCHING_ACTIVITY} * . * @return Whether an activity was found. If false, the preference was * removed. */ public static boolean updatePreferenceToSpecificActivityOrRemove(Context context, PreferenceGroup parentPreferenceGroup, String preferenceKey, int flags) { Preference preference = parentPreferenceGroup.findPreference(preferenceKey); if (preference == null) { return false; } Intent intent = preference.getIntent(); if (intent != null) { // Find the activity that is in the system image PackageManager pm = context.getPackageManager(); List list = pm.queryIntentActivities(intent, 0); int listSize = list.size(); for (int i = 0; i < listSize; i++) { ResolveInfo resolveInfo = list.get(i); if ((resolveInfo.activityInfo.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { // Replace the intent with this specific activity preference.setIntent(new Intent().setClassName( resolveInfo.activityInfo.packageName, resolveInfo.activityInfo.name)); if ((flags & UPDATE_PREFERENCE_FLAG_SET_TITLE_TO_MATCHING_ACTIVITY) != 0) { // Set the preference title to the activity's label preference.setTitle(resolveInfo.loadLabel(pm)); } return true; } } } // Did not find a matching activity, so remove the preference parentPreferenceGroup.removePreference(preference); return false; } /** * Returns the UserManager for a given context * * @throws IllegalStateException if no UserManager could be retrieved. */ public static UserManager getUserManager(Context context) { UserManager um = UserManager.get(context); if (um == null) { throw new IllegalStateException("Unable to load UserManager"); } return um; } /** * Returns true if Monkey is running. */ public static boolean isMonkeyRunning() { return ActivityManager.isUserAMonkey(); } /** * Returns whether the device is voice-capable (meaning, it is also a phone). */ public static boolean isVoiceCapable(Context context) { TelephonyManager telephony = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE); return telephony != null && telephony.isVoiceCapable(); } public static boolean isWifiOnly(Context context) { ConnectivityManager cm = (ConnectivityManager)context.getSystemService( Context.CONNECTIVITY_SERVICE); return (cm.isNetworkSupported(ConnectivityManager.TYPE_MOBILE) == false); } /** * Returns the WIFI IP Addresses, if any, taking into account IPv4 and IPv6 style addresses. * @param context the application context * @return the formatted and newline-separated IP addresses, or null if none. */ public static String getWifiIpAddresses(Context context) { ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE); LinkProperties prop = cm.getLinkProperties(ConnectivityManager.TYPE_WIFI); return formatIpAddresses(prop); } /** * Returns the default link's IP addresses, if any, taking into account IPv4 and IPv6 style * addresses. * @param context the application context * @return the formatted and newline-separated IP addresses, or null if none. */ public static String getDefaultIpAddresses(ConnectivityManager cm) { LinkProperties prop = cm.getActiveLinkProperties(); return formatIpAddresses(prop); } private static String formatIpAddresses(LinkProperties prop) { if (prop == null) return null; Iterator iter = prop.getAllAddresses().iterator(); // If there are no entries, return null if (!iter.hasNext()) return null; // Concatenate all available addresses, comma separated String addresses = ""; while (iter.hasNext()) { addresses += iter.next().getHostAddress(); if (iter.hasNext()) addresses += "\n"; } return addresses; } public static Locale createLocaleFromString(String localeStr) { // TODO: is there a better way to actually construct a locale that will match? // The main problem is, on top of Java specs, locale.toString() and // new Locale(locale.toString()).toString() do not return equal() strings in // many cases, because the constructor takes the only string as the language // code. So : new Locale("en", "US").toString() => "en_US" // And : new Locale("en_US").toString() => "en_us" if (null == localeStr) return Locale.getDefault(); String[] brokenDownLocale = localeStr.split("_", 3); // split may not return a 0-length array. if (1 == brokenDownLocale.length) { return new Locale(brokenDownLocale[0]); } else if (2 == brokenDownLocale.length) { return new Locale(brokenDownLocale[0], brokenDownLocale[1]); } else { return new Locale(brokenDownLocale[0], brokenDownLocale[1], brokenDownLocale[2]); } } public static boolean isBatteryPresent(Intent batteryChangedIntent) { return batteryChangedIntent.getBooleanExtra(BatteryManager.EXTRA_PRESENT, true); } public static String getBatteryPercentage(Intent batteryChangedIntent) { return formatPercentage(getBatteryLevel(batteryChangedIntent)); } public static void forcePrepareCustomPreferencesList( ViewGroup parent, View child, ListView list, boolean ignoreSidePadding) { list.setScrollBarStyle(View.SCROLLBARS_OUTSIDE_OVERLAY); list.setClipToPadding(false); prepareCustomPreferencesList(parent, child, list, ignoreSidePadding); } /** * Prepare a custom preferences layout, moving padding to {@link ListView} * when outside scrollbars are requested. Usually used to display * {@link ListView} and {@link TabWidget} with correct padding. */ public static void prepareCustomPreferencesList( ViewGroup parent, View child, View list, boolean ignoreSidePadding) { final boolean movePadding = list.getScrollBarStyle() == View.SCROLLBARS_OUTSIDE_OVERLAY; if (movePadding) { final Resources res = list.getResources(); final int paddingSide = res.getDimensionPixelSize(R.dimen.settings_side_margin); final int paddingBottom = res.getDimensionPixelSize( com.android.internal.R.dimen.preference_fragment_padding_bottom); if (parent instanceof PreferenceFrameLayout) { ((PreferenceFrameLayout.LayoutParams) child.getLayoutParams()).removeBorders = true; final int effectivePaddingSide = ignoreSidePadding ? 0 : paddingSide; list.setPaddingRelative(effectivePaddingSide, 0, effectivePaddingSide, paddingBottom); } else { list.setPaddingRelative(paddingSide, 0, paddingSide, paddingBottom); } } } public static void forceCustomPadding(View view, boolean additive) { final Resources res = view.getResources(); final int paddingSide = res.getDimensionPixelSize(R.dimen.settings_side_margin); final int paddingStart = paddingSide + (additive ? view.getPaddingStart() : 0); final int paddingEnd = paddingSide + (additive ? view.getPaddingEnd() : 0); final int paddingBottom = res.getDimensionPixelSize( com.android.internal.R.dimen.preference_fragment_padding_bottom); view.setPaddingRelative(paddingStart, 0, paddingEnd, paddingBottom); } /* Used by UserSettings as well. Call this on a non-ui thread. */ public static void copyMeProfilePhoto(Context context, UserInfo user) { Uri contactUri = Profile.CONTENT_URI; int userId = user != null ? user.id : UserHandle.myUserId(); InputStream avatarDataStream = Contacts.openContactPhotoInputStream( context.getContentResolver(), contactUri, true); // If there's no profile photo, assign a default avatar if (avatarDataStream == null) { assignDefaultPhoto(context, userId); return; } UserManager um = (UserManager) context.getSystemService(Context.USER_SERVICE); Bitmap icon = BitmapFactory.decodeStream(avatarDataStream); um.setUserIcon(userId, icon); try { avatarDataStream.close(); } catch (IOException ioe) { } } public static void assignDefaultPhoto(Context context, int userId) { UserManager um = (UserManager) context.getSystemService(Context.USER_SERVICE); Bitmap bitmap = getDefaultUserIconAsBitmap(userId); um.setUserIcon(userId, bitmap); } public static String getMeProfileName(Context context, boolean full) { if (full) { return getProfileDisplayName(context); } else { return getShorterNameIfPossible(context); } } private static String getShorterNameIfPossible(Context context) { final String given = getLocalProfileGivenName(context); return !TextUtils.isEmpty(given) ? given : getProfileDisplayName(context); } private static String getLocalProfileGivenName(Context context) { final ContentResolver cr = context.getContentResolver(); // Find the raw contact ID for the local ME profile raw contact. final long localRowProfileId; final Cursor localRawProfile = cr.query( Profile.CONTENT_RAW_CONTACTS_URI, new String[] {RawContacts._ID}, RawContacts.ACCOUNT_TYPE + " IS NULL AND " + RawContacts.ACCOUNT_NAME + " IS NULL", null, null); if (localRawProfile == null) return null; try { if (!localRawProfile.moveToFirst()) { return null; } localRowProfileId = localRawProfile.getLong(0); } finally { localRawProfile.close(); } // Find the structured name for the raw contact. final Cursor structuredName = cr.query( Profile.CONTENT_URI.buildUpon().appendPath(Contacts.Data.CONTENT_DIRECTORY).build(), new String[] {CommonDataKinds.StructuredName.GIVEN_NAME, CommonDataKinds.StructuredName.FAMILY_NAME}, Data.RAW_CONTACT_ID + "=" + localRowProfileId, null, null); if (structuredName == null) return null; try { if (!structuredName.moveToFirst()) { return null; } String partialName = structuredName.getString(0); if (TextUtils.isEmpty(partialName)) { partialName = structuredName.getString(1); } return partialName; } finally { structuredName.close(); } } private static final String getProfileDisplayName(Context context) { final ContentResolver cr = context.getContentResolver(); final Cursor profile = cr.query(Profile.CONTENT_URI, new String[] {Profile.DISPLAY_NAME}, null, null, null); if (profile == null) return null; try { if (!profile.moveToFirst()) { return null; } return profile.getString(0); } finally { profile.close(); } } /** Not global warming, it's global change warning. */ public static Dialog buildGlobalChangeWarningDialog(final Context context, int titleResId, final Runnable positiveAction) { final AlertDialog.Builder builder = new AlertDialog.Builder(context); builder.setTitle(titleResId); builder.setMessage(R.string.global_change_warning); builder.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { positiveAction.run(); } }); builder.setNegativeButton(android.R.string.cancel, null); return builder.create(); } public static boolean hasMultipleUsers(Context context) { return ((UserManager) context.getSystemService(Context.USER_SERVICE)) .getUsers().size() > 1; } /** * Start a new instance of the activity, showing only the given fragment. * When launched in this mode, the given preference fragment will be instantiated and fill the * entire activity. * * @param context The context. * @param fragmentName The name of the fragment to display. * @param args Optional arguments to supply to the fragment. * @param resultTo Option fragment that should receive the result of the activity launch. * @param resultRequestCode If resultTo is non-null, this is the request code in which * to report the result. * @param titleResId resource id for the String to display for the title of this set * of preferences. * @param title String to display for the title of this set of preferences. */ public static void startWithFragment(Context context, String fragmentName, Bundle args, Fragment resultTo, int resultRequestCode, int titleResId, CharSequence title) { startWithFragment(context, fragmentName, args, resultTo, resultRequestCode, null /* titleResPackageName */, titleResId, title, false /* not a shortcut */); } /** * Start a new instance of the activity, showing only the given fragment. * When launched in this mode, the given preference fragment will be instantiated and fill the * entire activity. * * @param context The context. * @param fragmentName The name of the fragment to display. * @param args Optional arguments to supply to the fragment. * @param resultTo Option fragment that should receive the result of the activity launch. * @param resultRequestCode If resultTo is non-null, this is the request code in which * to report the result. * @param titleResPackageName Optional package name for the resource id of the title. * @param titleResId resource id for the String to display for the title of this set * of preferences. * @param title String to display for the title of this set of preferences. */ public static void startWithFragment(Context context, String fragmentName, Bundle args, Fragment resultTo, int resultRequestCode, String titleResPackageName, int titleResId, CharSequence title) { startWithFragment(context, fragmentName, args, resultTo, resultRequestCode, titleResPackageName, titleResId, title, false /* not a shortcut */); } public static void startWithFragment(Context context, String fragmentName, Bundle args, Fragment resultTo, int resultRequestCode, int titleResId, CharSequence title, boolean isShortcut) { Intent intent = onBuildStartFragmentIntent(context, fragmentName, args, null /* titleResPackageName */, titleResId, title, isShortcut); if (resultTo == null) { context.startActivity(intent); } else { resultTo.getActivity().startActivityForResult(intent, resultRequestCode); } } public static void startWithFragment(Context context, String fragmentName, Bundle args, Fragment resultTo, int resultRequestCode, String titleResPackageName, int titleResId, CharSequence title, boolean isShortcut) { Intent intent = onBuildStartFragmentIntent(context, fragmentName, args, titleResPackageName, titleResId, title, isShortcut); if (resultTo == null) { context.startActivity(intent); } else { resultTo.startActivityForResult(intent, resultRequestCode); } } public static void startWithFragmentAsUser(Context context, String fragmentName, Bundle args, int titleResId, CharSequence title, boolean isShortcut, UserHandle userHandle) { // workaround to avoid crash in b/17523189 if (userHandle.getIdentifier() == UserHandle.myUserId()) { startWithFragment(context, fragmentName, args, null, 0, titleResId, title, isShortcut); } else { Intent intent = onBuildStartFragmentIntent(context, fragmentName, args, null /* titleResPackageName */, titleResId, title, isShortcut); intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK); context.startActivityAsUser(intent, userHandle); } } public static void startWithFragmentAsUser(Context context, String fragmentName, Bundle args, String titleResPackageName, int titleResId, CharSequence title, boolean isShortcut, UserHandle userHandle) { // workaround to avoid crash in b/17523189 if (userHandle.getIdentifier() == UserHandle.myUserId()) { startWithFragment(context, fragmentName, args, null, 0, titleResPackageName, titleResId, title, isShortcut); } else { Intent intent = onBuildStartFragmentIntent(context, fragmentName, args, titleResPackageName, titleResId, title, isShortcut); intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK); context.startActivityAsUser(intent, userHandle); } } /** * Build an Intent to launch a new activity showing the selected fragment. * The implementation constructs an Intent that re-launches the current activity with the * appropriate arguments to display the fragment. * * * @param context The Context. * @param fragmentName The name of the fragment to display. * @param args Optional arguments to supply to the fragment. * @param titleResPackageName Optional package name for the resource id of the title. * @param titleResId Optional title resource id to show for this item. * @param title Optional title to show for this item. * @param isShortcut tell if this is a Launcher Shortcut or not * @return Returns an Intent that can be launched to display the given * fragment. */ public static Intent onBuildStartFragmentIntent(Context context, String fragmentName, Bundle args, String titleResPackageName, int titleResId, CharSequence title, boolean isShortcut) { Intent intent = new Intent(Intent.ACTION_MAIN); intent.setClass(context, SubSettings.class); intent.putExtra(SettingsActivity.EXTRA_SHOW_FRAGMENT, fragmentName); intent.putExtra(SettingsActivity.EXTRA_SHOW_FRAGMENT_ARGUMENTS, args); intent.putExtra(SettingsActivity.EXTRA_SHOW_FRAGMENT_TITLE_RES_PACKAGE_NAME, titleResPackageName); intent.putExtra(SettingsActivity.EXTRA_SHOW_FRAGMENT_TITLE_RESID, titleResId); intent.putExtra(SettingsActivity.EXTRA_SHOW_FRAGMENT_TITLE, title); intent.putExtra(SettingsActivity.EXTRA_SHOW_FRAGMENT_AS_SHORTCUT, isShortcut); return intent; } /** * Returns the managed profile of the current user or null if none found. */ public static UserHandle getManagedProfile(UserManager userManager) { List userProfiles = userManager.getUserProfiles(); final int count = userProfiles.size(); for (int i = 0; i < count; i++) { final UserHandle profile = userProfiles.get(i); if (profile.getIdentifier() == userManager.getUserHandle()) { continue; } final UserInfo userInfo = userManager.getUserInfo(profile.getIdentifier()); if (userInfo.isManagedProfile()) { return profile; } } return null; } /** * Returns true if the current profile is a managed one. * * @throws IllegalArgumentException if userManager is null. */ public static boolean isManagedProfile(@NonNull UserManager userManager) { return isManagedProfile(userManager, UserHandle.myUserId()); } /** * Retrieves the id for the given user's managed profile. * * @return the managed profile id or UserHandle.USER_NULL if there is none. */ public static int getManagedProfileId(UserManager um, int parentUserId) { int[] profileIds = um.getProfileIdsWithDisabled(parentUserId); for (int profileId : profileIds) { if (profileId != parentUserId) { return profileId; } } return UserHandle.USER_NULL; } /** * Returns true if the userId passed in is a managed profile. * * @throws IllegalArgumentException if userManager is null. */ public static boolean isManagedProfile(@NonNull UserManager userManager, int userId) { if (userManager == null) { throw new IllegalArgumentException("userManager must not be null"); } UserInfo userInfo = userManager.getUserInfo(userId); return (userInfo != null) ? userInfo.isManagedProfile() : false; } /** * Returns the target user for a Settings activity. *

* User would be retrieved in this order: *

    *
  • If this activity is launched from other user, return that user id. *
  • If this is launched from the Settings app in same user, return the user contained as an * extra in the arguments or intent extras. *
  • Otherwise, return UserHandle.myUserId(). *
*

* Note: This is secure in the sense that it only returns a target user different to the current * one if the app launching this activity is the Settings app itself, running in the same user * or in one that is in the same profile group, or if the user id is provided by the system. */ public static UserHandle getSecureTargetUser(IBinder activityToken, UserManager um, @Nullable Bundle arguments, @Nullable Bundle intentExtras) { UserHandle currentUser = new UserHandle(UserHandle.myUserId()); IActivityManager am = ActivityManagerNative.getDefault(); try { String launchedFromPackage = am.getLaunchedFromPackage(activityToken); boolean launchedFromSettingsApp = SETTINGS_PACKAGE_NAME.equals(launchedFromPackage); UserHandle launchedFromUser = new UserHandle(UserHandle.getUserId( am.getLaunchedFromUid(activityToken))); if (launchedFromUser != null && !launchedFromUser.equals(currentUser)) { // Check it's secure if (isProfileOf(um, launchedFromUser)) { return launchedFromUser; } } UserHandle extrasUser = getUserHandleFromBundle(intentExtras); if (extrasUser != null && !extrasUser.equals(currentUser)) { // Check it's secure if (launchedFromSettingsApp && isProfileOf(um, extrasUser)) { return extrasUser; } } UserHandle argumentsUser = getUserHandleFromBundle(arguments); if (argumentsUser != null && !argumentsUser.equals(currentUser)) { // Check it's secure if (launchedFromSettingsApp && isProfileOf(um, argumentsUser)) { return argumentsUser; } } } catch (RemoteException e) { // Should not happen Log.v(TAG, "Could not talk to activity manager.", e); } return currentUser; } /** * Lookup both {@link Intent#EXTRA_USER} and {@link Intent#EXTRA_USER_ID} in the bundle * and return the {@link UserHandle} object. Return {@code null} if nothing is found. */ private static @Nullable UserHandle getUserHandleFromBundle(Bundle bundle) { if (bundle == null) { return null; } final UserHandle user = bundle.getParcelable(EXTRA_USER); if (user != null) { return user; } final int userId = bundle.getInt(EXTRA_USER_ID, -1); if (userId != -1) { return UserHandle.of(userId); } return null; } /** * Returns the target user for a Settings activity. * * The target user can be either the current user, the user that launched this activity or * the user contained as an extra in the arguments or intent extras. * * You should use {@link #getSecureTargetUser(IBinder, UserManager, Bundle, Bundle)} if * possible. * * @see #getInsecureTargetUser(IBinder, Bundle, Bundle) */ public static UserHandle getInsecureTargetUser(IBinder activityToken, @Nullable Bundle arguments, @Nullable Bundle intentExtras) { UserHandle currentUser = new UserHandle(UserHandle.myUserId()); IActivityManager am = ActivityManagerNative.getDefault(); try { UserHandle launchedFromUser = new UserHandle(UserHandle.getUserId( am.getLaunchedFromUid(activityToken))); if (launchedFromUser != null && !launchedFromUser.equals(currentUser)) { return launchedFromUser; } UserHandle extrasUser = intentExtras != null ? (UserHandle) intentExtras.getParcelable(EXTRA_USER) : null; if (extrasUser != null && !extrasUser.equals(currentUser)) { return extrasUser; } UserHandle argumentsUser = arguments != null ? (UserHandle) arguments.getParcelable(EXTRA_USER) : null; if (argumentsUser != null && !argumentsUser.equals(currentUser)) { return argumentsUser; } } catch (RemoteException e) { // Should not happen Log.v(TAG, "Could not talk to activity manager.", e); return null; } return currentUser; } /** * Returns true if the user provided is in the same profiles group as the current user. */ private static boolean isProfileOf(UserManager um, UserHandle otherUser) { if (um == null || otherUser == null) return false; return (UserHandle.myUserId() == otherUser.getIdentifier()) || um.getUserProfiles().contains(otherUser); } /** * Returns whether or not this device is able to be OEM unlocked. */ static boolean isOemUnlockEnabled(Context context) { PersistentDataBlockManager manager =(PersistentDataBlockManager) context.getSystemService(Context.PERSISTENT_DATA_BLOCK_SERVICE); return manager.getOemUnlockEnabled(); } /** * Allows enabling or disabling OEM unlock on this device. OEM unlocked * devices allow users to flash other OSes to them. */ static void setOemUnlockEnabled(Context context, boolean enabled) { try { PersistentDataBlockManager manager = (PersistentDataBlockManager) context.getSystemService(Context.PERSISTENT_DATA_BLOCK_SERVICE); manager.setOemUnlockEnabled(enabled); } catch (SecurityException e) { Log.e(TAG, "Fail to set oem unlock.", e); } } /** * Return whether or not the user should have a SIM Cards option in Settings. * TODO: Change back to returning true if count is greater than one after testing. * TODO: See bug 16533525. */ public static boolean showSimCardTile(Context context) { final TelephonyManager tm = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE); return tm.getSimCount() > 1; } /** * Returns elapsed time for the given millis, in the following format: * 2d 5h 40m 29s * @param context the application context * @param millis the elapsed time in milli seconds * @param withSeconds include seconds? * @return the formatted elapsed time */ public static String formatElapsedTime(Context context, double millis, boolean withSeconds) { StringBuilder sb = new StringBuilder(); int seconds = (int) Math.floor(millis / 1000); if (!withSeconds) { // Round up. seconds += 30; } int days = 0, hours = 0, minutes = 0; if (seconds >= SECONDS_PER_DAY) { days = seconds / SECONDS_PER_DAY; seconds -= days * SECONDS_PER_DAY; } if (seconds >= SECONDS_PER_HOUR) { hours = seconds / SECONDS_PER_HOUR; seconds -= hours * SECONDS_PER_HOUR; } if (seconds >= SECONDS_PER_MINUTE) { minutes = seconds / SECONDS_PER_MINUTE; seconds -= minutes * SECONDS_PER_MINUTE; } if (withSeconds) { if (days > 0) { sb.append(context.getString(R.string.battery_history_days, days, hours, minutes, seconds)); } else if (hours > 0) { sb.append(context.getString(R.string.battery_history_hours, hours, minutes, seconds)); } else if (minutes > 0) { sb.append(context.getString(R.string.battery_history_minutes, minutes, seconds)); } else { sb.append(context.getString(R.string.battery_history_seconds, seconds)); } } else { if (days > 0) { sb.append(context.getString(R.string.battery_history_days_no_seconds, days, hours, minutes)); } else if (hours > 0) { sb.append(context.getString(R.string.battery_history_hours_no_seconds, hours, minutes)); } else { sb.append(context.getString(R.string.battery_history_minutes_no_seconds, minutes)); } } return sb.toString(); } /** * Queries for the UserInfo of a user. Returns null if the user doesn't exist (was removed). * @param userManager Instance of UserManager * @param checkUser The user to check the existence of. * @return UserInfo of the user or null for non-existent user. */ public static UserInfo getExistingUser(UserManager userManager, UserHandle checkUser) { final List users = userManager.getUsers(true /* excludeDying */); final int checkUserId = checkUser.getIdentifier(); for (UserInfo user : users) { if (user.id == checkUserId) { return user; } } return null; } public static View inflateCategoryHeader(LayoutInflater inflater, ViewGroup parent) { final TypedArray a = inflater.getContext().obtainStyledAttributes(null, com.android.internal.R.styleable.Preference, com.android.internal.R.attr.preferenceCategoryStyle, 0); final int resId = a.getResourceId(com.android.internal.R.styleable.Preference_layout, 0); a.recycle(); return inflater.inflate(resId, parent, false); } /** * Return if we are running low on storage space or not. * * @param context The context * @return true if we are running low on storage space */ public static boolean isLowStorage(Context context) { final StorageManager sm = StorageManager.from(context); return (sm.getStorageBytesUntilLow(context.getFilesDir()) < 0); } /** * Returns a default user icon (as a {@link Bitmap}) for the given user. * * Note that for guest users, you should pass in {@code UserHandle.USER_NULL}. * @param userId the user id or {@code UserHandle.USER_NULL} for a non-user specific icon */ public static Bitmap getDefaultUserIconAsBitmap(int userId) { Bitmap bitmap = null; // Try finding the corresponding bitmap in the dark bitmap cache bitmap = sDarkDefaultUserBitmapCache.get(userId); if (bitmap == null) { bitmap = UserIcons.convertToBitmap(UserIcons.getDefaultUserIcon(userId, false)); // Save it to cache sDarkDefaultUserBitmapCache.put(userId, bitmap); } return bitmap; } public static boolean hasPreferredActivities(PackageManager pm, String packageName) { // Get list of preferred activities List prefActList = new ArrayList<>(); // Intent list cannot be null. so pass empty list List intentList = new ArrayList<>(); pm.getPreferredActivities(intentList, prefActList, packageName); Log.d(TAG, "Have " + prefActList.size() + " number of activities in preferred list"); return prefActList.size() > 0; } public static ArraySet getHandledDomains(PackageManager pm, String packageName) { List iviList = pm.getIntentFilterVerifications(packageName); List filters = pm.getAllIntentFilters(packageName); ArraySet result = new ArraySet<>(); if (iviList.size() > 0) { for (IntentFilterVerificationInfo ivi : iviList) { for (String host : ivi.getDomains()) { result.add(host); } } } if (filters != null && filters.size() > 0) { for (IntentFilter filter : filters) { if (filter.hasCategory(Intent.CATEGORY_BROWSABLE) && (filter.hasDataScheme(IntentFilter.SCHEME_HTTP) || filter.hasDataScheme(IntentFilter.SCHEME_HTTPS))) { result.addAll(filter.getHostsList()); } } } return result; } public static void handleLoadingContainer(View loading, View doneLoading, boolean done, boolean animate) { setViewShown(loading, !done, animate); setViewShown(doneLoading, done, animate); } private static void setViewShown(final View view, boolean shown, boolean animate) { if (animate) { Animation animation = AnimationUtils.loadAnimation(view.getContext(), shown ? android.R.anim.fade_in : android.R.anim.fade_out); if (shown) { view.setVisibility(View.VISIBLE); } else { animation.setAnimationListener(new AnimationListener() { @Override public void onAnimationStart(Animation animation) { } @Override public void onAnimationRepeat(Animation animation) { } @Override public void onAnimationEnd(Animation animation) { view.setVisibility(View.INVISIBLE); } }); } view.startAnimation(animation); } else { view.clearAnimation(); view.setVisibility(shown ? View.VISIBLE : View.INVISIBLE); } } /** * Returns the application info of the currently installed MDM package. */ public static ApplicationInfo getAdminApplicationInfo(Context context, int profileId) { DevicePolicyManager dpm = (DevicePolicyManager) context.getSystemService(Context.DEVICE_POLICY_SERVICE); ComponentName mdmPackage = dpm.getProfileOwnerAsUser(profileId); if (mdmPackage == null) { return null; } String mdmPackageName = mdmPackage.getPackageName(); try { IPackageManager ipm = AppGlobals.getPackageManager(); ApplicationInfo mdmApplicationInfo = ipm.getApplicationInfo(mdmPackageName, 0, profileId); return mdmApplicationInfo; } catch (RemoteException e) { Log.e(TAG, "Error while retrieving application info for package " + mdmPackageName + ", userId " + profileId, e); return null; } } public static boolean isBandwidthControlEnabled() { final INetworkManagementService netManager = INetworkManagementService.Stub .asInterface(ServiceManager.getService(Context.NETWORKMANAGEMENT_SERVICE)); try { return netManager.isBandwidthControlEnabled(); } catch (RemoteException e) { return false; } } /** * Returns an accessible SpannableString. * @param displayText the text to display * @param accessibileText the text text-to-speech engines should read */ public static SpannableString createAccessibleSequence(CharSequence displayText, String accessibileText) { SpannableString str = new SpannableString(displayText); str.setSpan(new TtsSpan.TextBuilder(accessibileText).build(), 0, displayText.length(), Spannable.SPAN_INCLUSIVE_INCLUSIVE); return str; } /** * Returns the user id present in the bundle with {@link Intent#EXTRA_USER_ID} if it * belongs to the current user. * * @throws SecurityException if the given userId does not belong to the current user group. */ public static int getUserIdFromBundle(Context context, Bundle bundle) { if (bundle == null) { return getCredentialOwnerUserId(context); } int userId = bundle.getInt(Intent.EXTRA_USER_ID, UserHandle.myUserId()); return enforceSameOwner(context, userId); } /** * Returns the given user id if it belongs to the current user. * * @throws SecurityException if the given userId does not belong to the current user group. */ public static int enforceSameOwner(Context context, int userId) { final UserManager um = getUserManager(context); final int[] profileIds = um.getProfileIdsWithDisabled(UserHandle.myUserId()); if (ArrayUtils.contains(profileIds, userId)) { return userId; } throw new SecurityException("Given user id " + userId + " does not belong to user " + UserHandle.myUserId()); } /** * Returns the effective credential owner of the calling user. */ public static int getCredentialOwnerUserId(Context context) { return getCredentialOwnerUserId(context, UserHandle.myUserId()); } /** * Returns the user id of the credential owner of the given user id. */ public static int getCredentialOwnerUserId(Context context, int userId) { UserManager um = getUserManager(context); return um.getCredentialOwnerProfile(userId); } public static int resolveResource(Context context, int attr) { TypedValue value = new TypedValue(); context.getTheme().resolveAttribute(attr, value, true); return value.resourceId; } private static final StringBuilder sBuilder = new StringBuilder(50); private static final java.util.Formatter sFormatter = new java.util.Formatter( sBuilder, Locale.getDefault()); public static String formatDateRange(Context context, long start, long end) { final int flags = FORMAT_SHOW_DATE | FORMAT_ABBREV_MONTH; synchronized (sBuilder) { sBuilder.setLength(0); return DateUtils.formatDateRange(context, sFormatter, start, end, flags, null) .toString(); } } public static List getNonIndexable(int xml, Context context) { if (Looper.myLooper() == null) { // Hack to make sure Preferences can initialize. Prefs expect a looper, but // don't actually use it for the basic stuff here. Looper.prepare(); } final List ret = new ArrayList<>(); PreferenceManager manager = new PreferenceManager(context); PreferenceScreen screen = manager.inflateFromResource(context, xml, null); checkPrefs(screen, ret); return ret; } private static void checkPrefs(PreferenceGroup group, List ret) { if (group == null) return; for (int i = 0; i < group.getPreferenceCount(); i++) { Preference pref = group.getPreference(i); if (pref instanceof SelfAvailablePreference && !((SelfAvailablePreference) pref).isAvailable(group.getContext())) { ret.add(pref.getKey()); if (pref instanceof PreferenceGroup) { addAll((PreferenceGroup) pref, ret); } } else if (pref instanceof PreferenceGroup) { checkPrefs((PreferenceGroup) pref, ret); } } } private static void addAll(PreferenceGroup group, List ret) { if (group == null) return; for (int i = 0; i < group.getPreferenceCount(); i++) { Preference pref = group.getPreference(i); ret.add(pref.getKey()); if (pref instanceof PreferenceGroup) { addAll((PreferenceGroup) pref, ret); } } } public static boolean isDeviceProvisioned(Context context) { return Settings.Global.getInt(context.getContentResolver(), Settings.Global.DEVICE_PROVISIONED, 0) != 0; } public static boolean startQuietModeDialogIfNecessary(Context context, UserManager um, int userId) { if (um.isQuietModeEnabled(UserHandle.of(userId))) { final Intent intent = UnlaunchableAppActivity.createInQuietModeDialogIntent(userId); context.startActivity(intent); return true; } return false; } public static boolean unlockWorkProfileIfNecessary(Context context, int userId) { try { if (!ActivityManagerNative.getDefault().isUserRunning(userId, ActivityManager.FLAG_AND_LOCKED)) { return false; } } catch (RemoteException e) { return false; } if (!(new LockPatternUtils(context)).isSecure(userId)) { return false; } final KeyguardManager km = (KeyguardManager) context.getSystemService( Context.KEYGUARD_SERVICE); final Intent unlockIntent = km.createConfirmDeviceCredentialIntent(null, null, userId); if (unlockIntent != null) { context.startActivity(unlockIntent); return true; } else { return false; } } public static CharSequence getApplicationLabel(Context context, String packageName) { try { final ApplicationInfo appInfo = context.getPackageManager().getApplicationInfo( packageName, PackageManager.MATCH_DISABLED_COMPONENTS | PackageManager.MATCH_UNINSTALLED_PACKAGES); return appInfo.loadLabel(context.getPackageManager()); } catch (PackageManager.NameNotFoundException e) { Log.w(TAG, "Unable to find info for package: " + packageName); } return null; } public static boolean isPackageEnabled(Context context, String packageName) { try { return context.getPackageManager().getApplicationInfo(packageName, 0).enabled; } catch (NameNotFoundException e) { // Thrown by PackageManager.getApplicationInfo if the package does not exist } return false; } public static boolean isPackageDirectBootAware(Context context, String packageName) { try { final ApplicationInfo ai = context.getPackageManager().getApplicationInfo( packageName, 0); return ai.isDirectBootAware() || ai.isPartiallyDirectBootAware(); } catch (NameNotFoundException ignored) { } return false; } public static boolean isCarrierDemoUser(Context context) { final String carrierDemoModeSetting = context.getString(com.android.internal.R.string.config_carrierDemoModeSetting); return UserManager.isDeviceInDemoMode(context) && getUserManager(context).isDemoUser() && !TextUtils.isEmpty(carrierDemoModeSetting) && Settings.Secure.getInt( context.getContentResolver(), carrierDemoModeSetting, 0) == 1; } }