shouldLog method
Is called every time a new log message is sent and decides if it will be printed or canceled.
Returns true
if the message should be logged.
Implementation
@override
bool shouldLog(LogEvent event) {
if (kReleaseMode) {
return event.level == Level.error;
}
return (event.level == Level.debug ||
event.level == Level.verbose ||
event.level == Level.error);
}