API CanShowAchievementUI

Returns if the AchievementUI can be displayed. canShow = CanShowAchievementUI

Returns

 * canShow: Boolean -  if the achievement data is available (and hence the AchievementUI can be displayed),   otherwise.

Details

 * This function returns  if called while the player is logging in (but not on subsequent UI reloads).
 * Achievement completion data is streamed to the client when the character logs in.
 * The streaming process is indicated by events and generally completes before.