| /** |
| * 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 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; |
| |
| import android.annotation.Nullable; |
| import android.app.ActivityManager; |
| import android.app.AppGlobals; |
| import android.app.Fragment; |
| import android.app.IActivityManager; |
| import android.app.KeyguardManager; |
| import android.app.admin.DevicePolicyManager; |
| import android.content.ActivityNotFoundException; |
| import android.content.ComponentName; |
| import android.content.ContentResolver; |
| import android.content.Context; |
| 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.Canvas; |
| import android.graphics.drawable.BitmapDrawable; |
| import android.graphics.drawable.Drawable; |
| import android.graphics.drawable.VectorDrawable; |
| import android.hardware.fingerprint.FingerprintManager; |
| import android.net.ConnectivityManager; |
| import android.net.LinkProperties; |
| import android.net.Network; |
| import android.net.wifi.WifiManager; |
| import android.os.BatteryManager; |
| import android.os.Bundle; |
| import android.os.IBinder; |
| import android.os.INetworkManagementService; |
| import android.os.RemoteException; |
| import android.os.ServiceManager; |
| import android.os.UserHandle; |
| import android.os.UserManager; |
| import android.os.storage.StorageManager; |
| import android.os.storage.VolumeInfo; |
| 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.support.annotation.StringRes; |
| import android.support.v7.preference.Preference; |
| import android.support.v7.preference.PreferenceGroup; |
| 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.IconDrawableFactory; |
| import android.util.Log; |
| import android.view.LayoutInflater; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.widget.EditText; |
| import android.widget.ListView; |
| import android.widget.TabWidget; |
| |
| import com.android.internal.app.UnlaunchableAppActivity; |
| import com.android.internal.util.ArrayUtils; |
| import com.android.internal.widget.LockPatternUtils; |
| import com.android.settings.password.ChooseLockSettingsHelper; |
| |
| import java.net.InetAddress; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Locale; |
| |
| 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; |
| |
| /** |
| * 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"; |
| |
| public static final String OS_PKG = "os"; |
| |
| /** |
| * 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<ResolveInfo> 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(); |
| } |
| |
| /** |
| * 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) { |
| WifiManager wifiManager = context.getSystemService(WifiManager.class); |
| Network currentNetwork = wifiManager.getCurrentNetwork(); |
| if (currentNetwork != null) { |
| ConnectivityManager cm = (ConnectivityManager) |
| context.getSystemService(Context.CONNECTIVITY_SERVICE); |
| LinkProperties prop = cm.getLinkProperties(currentNetwork); |
| return formatIpAddresses(prop); |
| } |
| return null; |
| } |
| |
| private static String formatIpAddresses(LinkProperties prop) { |
| if (prop == null) return null; |
| Iterator<InetAddress> 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)); |
| } |
| |
| /** |
| * 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); |
| } |
| |
| 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(); |
| } |
| } |
| |
| public static boolean hasMultipleUsers(Context context) { |
| return ((UserManager) context.getSystemService(Context.USER_SERVICE)) |
| .getUsers().size() > 1; |
| } |
| |
| /** |
| * Returns the managed profile of the current user or {@code null} if none is found or a profile |
| * exists but it is disabled. |
| */ |
| public static UserHandle getManagedProfile(UserManager userManager) { |
| List<UserHandle> 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 the managed profile of the current user or {@code null} if none is found. Unlike |
| * {@link #getManagedProfile} this method returns enabled and disabled managed profiles. |
| */ |
| public static UserHandle getManagedProfileWithDisabled(UserManager userManager) { |
| // TODO: Call getManagedProfileId from here once Robolectric supports |
| // API level 24 and UserManager.getProfileIdsWithDisabled can be Mocked (to avoid having |
| // yet another implementation that loops over user profiles in this method). In the meantime |
| // we need to use UserManager.getProfiles that is available on API 23 (the one currently |
| // used for Settings Robolectric tests). |
| final int myUserId = UserHandle.myUserId(); |
| List<UserInfo> profiles = userManager.getProfiles(myUserId); |
| final int count = profiles.size(); |
| for (int i = 0; i < count; i++) { |
| final UserInfo profile = profiles.get(i); |
| if (profile.isManagedProfile() |
| && profile.getUserHandle().getIdentifier() != myUserId) { |
| return profile.getUserHandle(); |
| } |
| } |
| return null; |
| } |
| |
| /** |
| * 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 the target user for a Settings activity. |
| * <p> |
| * User would be retrieved in this order: |
| * <ul> |
| * <li> If this activity is launched from other user, return that user id. |
| * <li> If this is launched from the Settings app in same user, return the user contained as an |
| * extra in the arguments or intent extras. |
| * <li> Otherwise, return UserHandle.myUserId(). |
| * </ul> |
| * <p> |
| * 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 = ActivityManager.getService(); |
| 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 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); |
| } |
| |
| /** |
| * 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; |
| } |
| |
| /** |
| * 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<UserInfo> 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); |
| } |
| |
| public static ArraySet<String> getHandledDomains(PackageManager pm, String packageName) { |
| List<IntentFilterVerificationInfo> iviList = pm.getIntentFilterVerifications(packageName); |
| List<IntentFilter> filters = pm.getAllIntentFilters(packageName); |
| |
| ArraySet<String> result = new ArraySet<>(); |
| if (iviList != null && 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; |
| } |
| |
| /** |
| * 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) { |
| return getUserIdFromBundle(context, bundle, false); |
| } |
| |
| /** |
| * Returns the user id present in the bundle with |
| * {@link Intent#EXTRA_USER_ID} if it belongs to the current user. |
| * |
| * @param isInternal indicating if the caller is "internal" to the system, |
| * meaning we're willing to trust extras like |
| * {@link ChooseLockSettingsHelper#EXTRA_ALLOW_ANY_USER}. |
| * @throws SecurityException if the given userId does not belong to the |
| * current user group. |
| */ |
| public static int getUserIdFromBundle(Context context, Bundle bundle, boolean isInternal) { |
| if (bundle == null) { |
| return getCredentialOwnerUserId(context); |
| } |
| final boolean allowAnyUser = isInternal |
| && bundle.getBoolean(ChooseLockSettingsHelper.EXTRA_ALLOW_ANY_USER, false); |
| int userId = bundle.getInt(Intent.EXTRA_USER_ID, UserHandle.myUserId()); |
| if (userId == LockPatternUtils.USER_FRP) { |
| return allowAnyUser ? userId : enforceSystemUser(context, userId); |
| } else { |
| return allowAnyUser ? userId : enforceSameOwner(context, userId); |
| } |
| } |
| |
| /** |
| * Returns the given user id if the current user is the system user. |
| * |
| * @throws SecurityException if the current user is not the system user. |
| */ |
| public static int enforceSystemUser(Context context, int userId) { |
| if (UserHandle.myUserId() == UserHandle.USER_SYSTEM) { |
| return userId; |
| } |
| throw new SecurityException("Given user id " + userId + " must only be used from " |
| + "USER_SYSTEM, but current user is " + UserHandle.myUserId()); |
| } |
| |
| /** |
| * 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); |
| } |
| |
| 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 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 (!ActivityManager.getService().isUserRunning(userId, |
| ActivityManager.FLAG_AND_LOCKED)) { |
| return false; |
| } |
| } catch (RemoteException e) { |
| return false; |
| } |
| if (!(new LockPatternUtils(context)).isSecure(userId)) { |
| return false; |
| } |
| return confirmWorkProfileCredentials(context, userId); |
| } |
| |
| private static boolean confirmWorkProfileCredentials(Context context, int userId) { |
| 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_ANY_USER); |
| return appInfo.loadLabel(context.getPackageManager()); |
| } catch (PackageManager.NameNotFoundException e) { |
| Log.w(TAG, "Unable to find info for package: " + packageName); |
| } |
| return null; |
| } |
| |
| 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; |
| } |
| |
| /** |
| * Returns a context created from the given context for the given user, or null if it fails |
| */ |
| public static Context createPackageContextAsUser(Context context, int userId) { |
| try { |
| return context.createPackageContextAsUser( |
| context.getPackageName(), 0 /* flags */, UserHandle.of(userId)); |
| } catch (PackageManager.NameNotFoundException e) { |
| Log.e(TAG, "Failed to create user context", e); |
| } |
| return null; |
| } |
| |
| public static FingerprintManager getFingerprintManagerOrNull(Context context) { |
| if (context.getPackageManager().hasSystemFeature(PackageManager.FEATURE_FINGERPRINT)) { |
| return (FingerprintManager) context.getSystemService(Context.FINGERPRINT_SERVICE); |
| } else { |
| return null; |
| } |
| } |
| |
| public static boolean hasFingerprintHardware(Context context) { |
| FingerprintManager fingerprintManager = getFingerprintManagerOrNull(context); |
| return fingerprintManager != null && fingerprintManager.isHardwareDetected(); |
| } |
| |
| /** |
| * Launches an intent which may optionally have a user id defined. |
| * @param fragment Fragment to use to launch the activity. |
| * @param intent Intent to launch. |
| */ |
| public static void launchIntent(Fragment fragment, Intent intent) { |
| try { |
| final int userId = intent.getIntExtra(Intent.EXTRA_USER_ID, -1); |
| |
| if (userId == -1) { |
| fragment.startActivity(intent); |
| } else { |
| fragment.getActivity().startActivityAsUser(intent, new UserHandle(userId)); |
| } |
| } catch (ActivityNotFoundException e) { |
| Log.w(TAG, "No activity found for " + intent); |
| } |
| } |
| |
| public static boolean isDemoUser(Context context) { |
| return UserManager.isDeviceInDemoMode(context) && getUserManager(context).isDemoUser(); |
| } |
| |
| public static ComponentName getDeviceOwnerComponent(Context context) { |
| final DevicePolicyManager dpm = (DevicePolicyManager) context.getSystemService( |
| Context.DEVICE_POLICY_SERVICE); |
| return dpm.getDeviceOwnerComponentOnAnyUser(); |
| } |
| |
| /** |
| * Returns if a given user is a profile of another user. |
| * @param user The user whose profiles wibe checked. |
| * @param profile The (potential) profile. |
| * @return if the profile is actually a profile |
| */ |
| public static boolean isProfileOf(UserInfo user, UserInfo profile) { |
| return user.id == profile.id || |
| (user.profileGroupId != UserInfo.NO_PROFILE_GROUP_ID |
| && user.profileGroupId == profile.profileGroupId); |
| } |
| |
| /** |
| * Tries to initalize a volume with the given bundle. If it is a valid, private, and readable |
| * {@link VolumeInfo}, it is returned. If it is not valid, null is returned. |
| */ |
| @Nullable |
| public static VolumeInfo maybeInitializeVolume(StorageManager sm, Bundle bundle) { |
| final String volumeId = bundle.getString(VolumeInfo.EXTRA_VOLUME_ID, |
| VolumeInfo.ID_PRIVATE_INTERNAL); |
| VolumeInfo volume = sm.findVolumeById(volumeId); |
| return isVolumeValid(volume) ? volume : null; |
| } |
| |
| /** |
| * Return {@code true} if the supplied package is device owner or profile owner of at |
| * least one user. |
| * @param userManager used to get profile owner app for each user |
| * @param devicePolicyManager used to check whether it is device owner app |
| * @param packageName package to check about |
| */ |
| public static boolean isProfileOrDeviceOwner(UserManager userManager, |
| DevicePolicyManager devicePolicyManager, String packageName) { |
| List<UserInfo> userInfos = userManager.getUsers(); |
| if (devicePolicyManager.isDeviceOwnerAppOnAnyUser(packageName)) { |
| return true; |
| } |
| for (int i = 0, size = userInfos.size(); i < size; i++) { |
| ComponentName cn = devicePolicyManager.getProfileOwnerAsUser(userInfos.get(i).id); |
| if (cn != null && cn.getPackageName().equals(packageName)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * Return the resource id to represent the install status for an app |
| */ |
| @StringRes |
| public static int getInstallationStatus(ApplicationInfo info) { |
| if ((info.flags & ApplicationInfo.FLAG_INSTALLED) == 0) { |
| return R.string.not_installed; |
| } |
| return info.enabled ? R.string.installed : R.string.disabled; |
| } |
| |
| private static boolean isVolumeValid(VolumeInfo volume) { |
| return (volume != null) && (volume.getType() == VolumeInfo.TYPE_PRIVATE) |
| && volume.isMountedReadable(); |
| } |
| |
| public static void setEditTextCursorPosition(EditText editText) { |
| editText.setSelection(editText.getText().length()); |
| } |
| |
| /** |
| * Sets the preference icon with a drawable that is scaled down to to avoid crashing Settings if |
| * it's too big. |
| */ |
| public static void setSafeIcon(Preference pref, Drawable icon) { |
| Drawable safeIcon = icon; |
| if ((icon != null) && !(icon instanceof VectorDrawable)) { |
| safeIcon = getSafeDrawable(icon, 500, 500); |
| } |
| pref.setIcon(safeIcon); |
| } |
| |
| /** |
| * Gets a drawable with a limited size to avoid crashing Settings if it's too big. |
| * |
| * @param original original drawable, typically an app icon. |
| * @param maxWidth maximum width, in pixels. |
| * @param maxHeight maximum height, in pixels. |
| */ |
| public static Drawable getSafeDrawable(Drawable original, int maxWidth, int maxHeight) { |
| final int actualWidth = original.getMinimumWidth(); |
| final int actualHeight = original.getMinimumHeight(); |
| |
| if (actualWidth <= maxWidth && actualHeight <= maxHeight) { |
| return original; |
| } |
| |
| float scaleWidth = ((float) maxWidth) / actualWidth; |
| float scaleHeight = ((float) maxHeight) / actualHeight; |
| float scale = Math.min(scaleWidth, scaleHeight); |
| final int width = (int) (actualWidth * scale); |
| final int height = (int) (actualHeight * scale); |
| |
| final Bitmap bitmap; |
| if (original instanceof BitmapDrawable) { |
| bitmap = Bitmap.createScaledBitmap(((BitmapDrawable) original).getBitmap(), width, |
| height, false); |
| } else { |
| bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); |
| final Canvas canvas = new Canvas(bitmap); |
| original.setBounds(0, 0, canvas.getWidth(), canvas.getHeight()); |
| original.draw(canvas); |
| } |
| return new BitmapDrawable(null, bitmap); |
| } |
| |
| /** |
| * Get the {@link Drawable} that represents the app icon |
| */ |
| public static Drawable getBadgedIcon(IconDrawableFactory iconDrawableFactory, |
| PackageManager packageManager, String packageName, int userId) { |
| try { |
| final ApplicationInfo appInfo = packageManager.getApplicationInfoAsUser( |
| packageName, PackageManager.GET_META_DATA, userId); |
| return iconDrawableFactory.getBadgedIcon(appInfo, userId); |
| } catch (PackageManager.NameNotFoundException e) { |
| return packageManager.getDefaultActivityIcon(); |
| } |
| } |
| } |