/** * 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 static android.content.Intent.EXTRA_USER; import android.annotation.Nullable; import android.app.ActivityManager; import android.app.ActivityManagerNative; import android.app.AlertDialog; import android.app.Dialog; import android.app.Fragment; import android.app.IActivityManager; import android.content.ContentResolver; import android.content.Context; import android.content.DialogInterface; import android.content.Intent; import android.content.pm.ApplicationInfo; import android.content.pm.PackageInfo; import android.content.pm.PackageManager; import android.content.pm.PackageManager.NameNotFoundException; import android.content.pm.ResolveInfo; import android.content.pm.Signature; import android.content.pm.UserInfo; import android.content.res.Resources; import android.content.res.Resources.NotFoundException; import android.database.Cursor; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.graphics.drawable.Drawable; 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.RemoteException; import android.os.UserHandle; import android.os.UserManager; import android.preference.Preference; import android.preference.PreferenceFrameLayout; import android.preference.PreferenceGroup; 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.service.persistentdata.PersistentDataBlockManager; import android.telephony.SubscriptionInfo; import android.telephony.SubscriptionManager; import android.telephony.TelephonyManager; import android.text.TextUtils; import android.util.Log; import android.view.View; import android.view.ViewGroup; import android.widget.ListView; import android.widget.TabWidget; import com.android.internal.util.UserIcons; import com.android.settings.UserSpinnerAdapter.UserDetails; import com.android.settings.dashboard.DashboardTile; import com.android.settings.drawable.CircleFramedDrawable; import java.io.IOException; import java.io.InputStream; import java.net.InetAddress; import java.text.NumberFormat; import java.util.ArrayList; import java.util.Iterator; import java.util.List; import java.util.Locale; public final class 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 }; /** * Name of the meta-data item that should be set in the AndroidManifest.xml * to specify the icon that should be displayed for the preference. */ private static final String META_DATA_PREFERENCE_ICON = "com.android.settings.icon"; /** * Name of the meta-data item that should be set in the AndroidManifest.xml * to specify the title that should be displayed for the preference. */ private static final String META_DATA_PREFERENCE_TITLE = "com.android.settings.title"; /** * Name of the meta-data item that should be set in the AndroidManifest.xml * to specify the summary text that should be displayed for the preference. */ private static final String META_DATA_PREFERENCE_SUMMARY = "com.android.settings.summary"; 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; /** * 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; } public static boolean updateTileToSpecificActivityFromMetaDataOrRemove(Context context, DashboardTile tile) { Intent intent = tile.intent; if (intent != null) { // Find the activity that is in the system image PackageManager pm = context.getPackageManager(); List list = pm.queryIntentActivities(intent, PackageManager.GET_META_DATA); 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) { Drawable icon = null; String title = null; String summary = null; // Get the activity's meta-data try { Resources res = pm.getResourcesForApplication( resolveInfo.activityInfo.packageName); Bundle metaData = resolveInfo.activityInfo.metaData; if (res != null && metaData != null) { icon = res.getDrawable( metaData.getInt(META_DATA_PREFERENCE_ICON), null); title = res.getString(metaData.getInt(META_DATA_PREFERENCE_TITLE)); summary = res.getString(metaData.getInt(META_DATA_PREFERENCE_SUMMARY)); } } catch (NameNotFoundException e) { // Ignore } catch (NotFoundException e) { // Ignore } // Set the preference title to the activity's label if no // meta-data is found if (TextUtils.isEmpty(title)) { title = resolveInfo.loadLabel(pm).toString(); } // Set icon, title and summary for the preference // TODO: //tile.icon = icon; tile.title = title; tile.summary = summary; // Replace the intent with this specific activity tile.intent = new Intent().setClassName(resolveInfo.activityInfo.packageName, resolveInfo.activityInfo.name); return true; } } } return false; } /** * 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]); } } /** Formats the ratio of amount/total as a percentage. */ public static String formatPercentage(long amount, long total) { return formatPercentage(((double) amount) / total); } /** Formats an integer from 0..100 as a percentage. */ public static String formatPercentage(int percentage) { return formatPercentage(((double) percentage) / 100.0); } /** Formats a double from 0.0..1.0 as a percentage. */ private static String formatPercentage(double percentage) { return NumberFormat.getPercentInstance().format(percentage); } 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 int getBatteryLevel(Intent batteryChangedIntent) { int level = batteryChangedIntent.getIntExtra(BatteryManager.EXTRA_LEVEL, 0); int scale = batteryChangedIntent.getIntExtra(BatteryManager.EXTRA_SCALE, 100); return (level * 100) / scale; } public static String getBatteryStatus(Resources res, Intent batteryChangedIntent) { final Intent intent = batteryChangedIntent; int plugType = intent.getIntExtra(BatteryManager.EXTRA_PLUGGED, 0); int status = intent.getIntExtra(BatteryManager.EXTRA_STATUS, BatteryManager.BATTERY_STATUS_UNKNOWN); String statusString; if (status == BatteryManager.BATTERY_STATUS_CHARGING) { int resId; if (plugType == BatteryManager.BATTERY_PLUGGED_AC) { resId = R.string.battery_info_status_charging_ac; } else if (plugType == BatteryManager.BATTERY_PLUGGED_USB) { resId = R.string.battery_info_status_charging_usb; } else if (plugType == BatteryManager.BATTERY_PLUGGED_WIRELESS) { resId = R.string.battery_info_status_charging_wireless; } else { resId = R.string.battery_info_status_charging; } statusString = res.getString(resId); } else if (status == BatteryManager.BATTERY_STATUS_DISCHARGING) { statusString = res.getString(R.string.battery_info_status_discharging); } else if (status == BatteryManager.BATTERY_STATUS_NOT_CHARGING) { statusString = res.getString(R.string.battery_info_status_not_charging); } else if (status == BatteryManager.BATTERY_STATUS_FULL) { statusString = res.getString(R.string.battery_info_status_full); } else { statusString = res.getString(R.string.battery_info_status_unknown); } return statusString; } 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); } /** * Return string resource that best describes combination of tethering * options available on this device. */ public static int getTetheringLabel(ConnectivityManager cm) { String[] usbRegexs = cm.getTetherableUsbRegexs(); String[] wifiRegexs = cm.getTetherableWifiRegexs(); String[] bluetoothRegexs = cm.getTetherableBluetoothRegexs(); boolean usbAvailable = usbRegexs.length != 0; boolean wifiAvailable = wifiRegexs.length != 0; boolean bluetoothAvailable = bluetoothRegexs.length != 0; if (wifiAvailable && usbAvailable && bluetoothAvailable) { return R.string.tether_settings_title_all; } else if (wifiAvailable && usbAvailable) { return R.string.tether_settings_title_all; } else if (wifiAvailable && bluetoothAvailable) { return R.string.tether_settings_title_all; } else if (wifiAvailable) { return R.string.tether_settings_title_wifi; } else if (usbAvailable && bluetoothAvailable) { return R.string.tether_settings_title_usb_bluetooth; } else if (usbAvailable) { return R.string.tether_settings_title_usb; } else { return R.string.tether_settings_title_bluetooth; } } /* Used by UserSettings as well. Call this on a non-ui thread. */ public static boolean copyMeProfilePhoto(Context context, UserInfo user) { Uri contactUri = Profile.CONTENT_URI; InputStream avatarDataStream = Contacts.openContactPhotoInputStream( context.getContentResolver(), contactUri, true); // If there's no profile photo, assign a default avatar if (avatarDataStream == null) { return false; } int userId = user != null ? user.id : UserHandle.myUserId(); UserManager um = (UserManager) context.getSystemService(Context.USER_SERVICE); Bitmap icon = BitmapFactory.decodeStream(avatarDataStream); um.setUserIcon(userId, icon); try { avatarDataStream.close(); } catch (IOException ioe) { } return true; } 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.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) { 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) { 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. */ public static boolean isManagedProfile(UserManager userManager) { UserInfo currentUser = userManager.getUserInfo(userManager.getUserHandle()); return currentUser.isManagedProfile(); } /** * Creates a {@link UserSpinnerAdapter} if there is more than one profile on the device. * *

The adapter can be used to populate a spinner that switches between the Settings * app on the different profiles. * * @return a {@link UserSpinnerAdapter} or null if there is only one profile. */ public static UserSpinnerAdapter createUserSpinnerAdapter(UserManager userManager, Context context) { List userProfiles = userManager.getUserProfiles(); if (userProfiles.size() < 2) { return null; } UserHandle myUserHandle = new UserHandle(UserHandle.myUserId()); // The first option should be the current profile userProfiles.remove(myUserHandle); userProfiles.add(0, myUserHandle); ArrayList userDetails = new ArrayList(userProfiles.size()); final int count = userProfiles.size(); for (int i = 0; i < count; i++) { userDetails.add(new UserDetails(userProfiles.get(i), userManager, context)); } return new UserSpinnerAdapter(context, userDetails); } /** * 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. * * 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 = intentExtras != null ? (UserHandle) intentExtras.getParcelable(EXTRA_USER) : null; if (extrasUser != null && !extrasUser.equals(currentUser)) { // Check it's secure if (launchedFromSettingsApp && isProfileOf(um, extrasUser)) { return extrasUser; } } UserHandle argumentsUser = arguments != null ? (UserHandle) arguments.getParcelable(EXTRA_USER) : null; 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; } /** * 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); } /** * Creates a dialog to confirm with the user if it's ok to remove the user * and delete all the data. * * @param context a Context object * @param removingUserId The userId of the user to remove * @param onConfirmListener Callback object for positive action * @return the created Dialog */ public static Dialog createRemoveConfirmationDialog(Context context, int removingUserId, DialogInterface.OnClickListener onConfirmListener) { UserManager um = (UserManager) context.getSystemService(Context.USER_SERVICE); UserInfo userInfo = um.getUserInfo(removingUserId); int titleResId; int messageResId; if (UserHandle.myUserId() == removingUserId) { titleResId = R.string.user_confirm_remove_self_title; messageResId = R.string.user_confirm_remove_self_message; } else if (userInfo.isRestricted()) { titleResId = R.string.user_profile_confirm_remove_title; messageResId = R.string.user_profile_confirm_remove_message; } else if (userInfo.isManagedProfile()) { titleResId = R.string.work_profile_confirm_remove_title; messageResId = R.string.work_profile_confirm_remove_message; } else { titleResId = R.string.user_confirm_remove_title; messageResId = R.string.user_confirm_remove_message; } Dialog dlg = new AlertDialog.Builder(context) .setTitle(titleResId) .setMessage(messageResId) .setPositiveButton(R.string.user_delete_button, onConfirmListener) .setNegativeButton(android.R.string.cancel, null) .create(); return dlg; } /** * 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) { PersistentDataBlockManager manager =(PersistentDataBlockManager) context.getSystemService(Context.PERSISTENT_DATA_BLOCK_SERVICE); manager.setOemUnlockEnabled(enabled); } /** * Returns a circular icon for a user. */ public static Drawable getUserIcon(Context context, UserManager um, UserInfo user) { if (user.isManagedProfile()) { // We use predefined values for managed profiles Bitmap b = BitmapFactory.decodeResource(context.getResources(), com.android.internal.R.drawable.ic_corp_icon); return CircleFramedDrawable.getInstance(context, b); } if (user.iconPath != null) { Bitmap icon = um.getUserIcon(user.id); if (icon != null) { return CircleFramedDrawable.getInstance(context, icon); } } return UserIcons.getDefaultUserIcon(user.id, /* light= */ false); } /** * Returns a label for the user, in the form of "User: user name" or "Work profile". */ public static String getUserLabel(Context context, UserInfo info) { if (info.isManagedProfile()) { // We use predefined values for managed profiles return context.getString(R.string.managed_user_title); } String name = info != null ? info.name : null; if (name == null && info != null) { name = Integer.toString(info.id); } else if (info == null) { name = context.getString(R.string.unknown); } return context.getResources().getString(R.string.running_process_item_user_label, name); } /** * 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; } /** * Determine whether a package is a "system package", in which case certain things (like * disabling notifications or disabling the package altogether) should be disallowed. */ public static boolean isSystemPackage(PackageManager pm, PackageInfo pkg) { if (sSystemSignature == null) { sSystemSignature = new Signature[]{ getSystemSignature(pm) }; } return sSystemSignature[0] != null && sSystemSignature[0].equals(getFirstSignature(pkg)); } private static Signature[] sSystemSignature; private static Signature getFirstSignature(PackageInfo pkg) { if (pkg != null && pkg.signatures != null && pkg.signatures.length > 0) { return pkg.signatures[0]; } return null; } private static Signature getSystemSignature(PackageManager pm) { try { final PackageInfo sys = pm.getPackageInfo("android", PackageManager.GET_SIGNATURES); return getFirstSignature(sys); } catch (NameNotFoundException e) { } return null; } /** * 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(); } /** * finds a record with subId. * Since the number of SIMs are few, an array is fine. */ public static SubscriptionInfo findRecordBySubId(Context context, final int subId) { final List subInfoList = SubscriptionManager.from(context).getActiveSubscriptionInfoList(); if (subInfoList != null) { final int subInfoLength = subInfoList.size(); for (int i = 0; i < subInfoLength; ++i) { final SubscriptionInfo sir = subInfoList.get(i); if (sir != null && sir.getSubscriptionId() == subId) { return sir; } } } return null; } /** * finds a record with slotId. * Since the number of SIMs are few, an array is fine. */ public static SubscriptionInfo findRecordBySlotId(Context context, final int slotId) { final List subInfoList = SubscriptionManager.from(context).getActiveSubscriptionInfoList(); if (subInfoList != null) { final int subInfoLength = subInfoList.size(); for (int i = 0; i < subInfoLength; ++i) { final SubscriptionInfo sir = subInfoList.get(i); if (sir.getSimSlotIndex() == slotId) { //Right now we take the first subscription on a SIM. return sir; } } } return null; } /** * 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; } }