diff options
Diffstat (limited to 'src/com/android/launcher3/compat/UserManagerCompatV17.java')
-rw-r--r-- | src/com/android/launcher3/compat/UserManagerCompatV17.java | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/src/com/android/launcher3/compat/UserManagerCompatV17.java b/src/com/android/launcher3/compat/UserManagerCompatV17.java index c42c00c7d..75203b7f3 100644 --- a/src/com/android/launcher3/compat/UserManagerCompatV17.java +++ b/src/com/android/launcher3/compat/UserManagerCompatV17.java @@ -21,8 +21,18 @@ import android.content.Context; import android.os.Build; import android.os.UserManager; +import com.android.launcher3.util.LongArrayMap; + +import java.util.HashMap; + @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1) public class UserManagerCompatV17 extends UserManagerCompatV16 { + + protected LongArrayMap<UserHandleCompat> mUsers; + // Create a separate reverse map as LongArrayMap.indexOfValue checks if objects are same + // and not {@link Object#equals} + protected HashMap<UserHandleCompat, Long> mUserToSerialMap; + protected UserManager mUserManager; UserManagerCompatV17(Context context) { @@ -30,11 +40,34 @@ public class UserManagerCompatV17 extends UserManagerCompatV16 { } public long getSerialNumberForUser(UserHandleCompat user) { + synchronized (this) { + if (mUserToSerialMap != null) { + Long serial = mUserToSerialMap.get(user); + return serial == null ? 0 : serial; + } + } return mUserManager.getSerialNumberForUser(user.getUser()); } public UserHandleCompat getUserForSerialNumber(long serialNumber) { + synchronized (this) { + if (mUsers != null) { + return mUsers.get(serialNumber); + } + } return UserHandleCompat.fromUser(mUserManager.getUserForSerialNumber(serialNumber)); } + + @Override + public void enableAndResetCache() { + synchronized (this) { + mUsers = new LongArrayMap<>(); + mUserToSerialMap = new HashMap<>(); + UserHandleCompat myUser = UserHandleCompat.myUserHandle(); + long serial = mUserManager.getSerialNumberForUser(myUser.getUser()); + mUsers.put(serial, myUser); + mUserToSerialMap.put(myUser, serial); + } + } } |