适用于 Android 用户管理器的正确用例？

Question

I was looking at the new APIs introduced in Android 4.2. While looking at the UserManager class I came across the following method:

public boolean isUserAGoat()

Used to determine whether the user making this call is subject to teleportations.

Returns whether the user making this call is a goat.

How and when should this be used?

转载于:https://stackoverflow.com/questions/13375357/proper-use-cases-for-android-usermanager-isuseragoat

Answer 1

This appears to be an inside joke at Google. It's also featured in the Google Chrome task manager. It has no purpose, other than some engineers finding it amusing. Which is a purpose by itself, if you will.

1. In Chrome, open the Task Manager with <kbd>Shift</kbd>+<kbd>Esc</kbd>.
2. Right click to add the Goats Teleported column.
3. Wonder.

There is even a huge Chromium bug report about too many teleported goats.

The following Chromium source code snippet is stolen from the HN comments.

int TaskManagerModel::GetGoatsTeleported(int index) const {
  int seed = goat_salt_ * (index + 1);
  return (seed >> 16) & 255;
}