diff options
| -rw-r--r-- | api/17.txt | 1 | ||||
| -rw-r--r-- | api/current.txt | 1 | ||||
| -rw-r--r-- | core/java/android/os/UserManager.java | 17 |
3 files changed, 15 insertions, 4 deletions
@@ -16619,6 +16619,7 @@ package android.os { public class UserManager { method public long getSerialNumberForUser(android.os.UserHandle); + method public int getUserCount(); method public android.os.UserHandle getUserForSerialNumber(long); method public java.lang.String getUserName(); method public boolean isUserAGoat(); diff --git a/api/current.txt b/api/current.txt index e7f02dc..e1e89b5 100644 --- a/api/current.txt +++ b/api/current.txt @@ -16619,6 +16619,7 @@ package android.os { public class UserManager { method public long getSerialNumberForUser(android.os.UserHandle); + method public int getUserCount(); method public android.os.UserHandle getUserForSerialNumber(long); method public java.lang.String getUserName(); method public boolean isUserAGoat(); diff --git a/core/java/android/os/UserManager.java b/core/java/android/os/UserManager.java index 898c766..d73f99a 100644 --- a/core/java/android/os/UserManager.java +++ b/core/java/android/os/UserManager.java @@ -122,7 +122,7 @@ public class UserManager { * @param userHandle the user handle of the user whose information is being requested. * @return the UserInfo object for a specific user. * @hide - * */ + */ public UserInfo getUserInfo(int userHandle) { try { return mService.getUserInfo(userHandle); @@ -134,10 +134,11 @@ public class UserManager { /** * Return the serial number for a user. This is a device-unique - * number assigned to that user; if the user is deleted and new users - * created, the new users will not be given the same serial number. + * number assigned to that user; if the user is deleted and then a new + * user created, the new users will not be given the same serial number. * @param user The user whose serial number is to be retrieved. - * @return The serial number of the given user. + * @return The serial number of the given user; returns -1 if the + * given UserHandle does not exist. * @see #getUserForSerialNumber(long) */ public long getSerialNumberForUser(UserHandle user) { @@ -179,6 +180,14 @@ public class UserManager { } /** + * Return the number of users currently created on the device. + */ + public int getUserCount() { + List<UserInfo> users = getUsers(); + return users != null ? users.size() : 1; + } + + /** * Returns information for all users on this device. * Requires {@link android.Manifest.permission#MANAGE_USERS} permission. * @return the list of users that were created. |