Obtains the time in milliseconds that this object last spend in the idle state (it may still be idle in which case subsequent calls will return an increased value).
@return The time in milliseconds last spent in the idle state
See Implementation
Obtains the time in milliseconds that this object last spend in the idle state (it may still be idle in which case subsequent calls will return an increased value).
@return The time in milliseconds last spent in the idle state