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Diffstat (limited to 'src/com/android/launcher3/compat/UserManagerCompatV17.java')
-rw-r--r--src/com/android/launcher3/compat/UserManagerCompatV17.java33
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);
+ }
+ }
}