Flutter: logger

Question

I'm using https://pub.dartlang.org/packages/logging, but it doesn't display anything to my log. This is my code:

class Test {

  final Logger log = new Logger('testLogger');

  Future<String> join() async {
    try {
      return await func();
    } on Exception catch (e) {
        log.severe('access denied!');
        return null;
  }

}

Solution

You need to register a log reporter.

From https://pub.dartlang.org/packages/logging

main() {
  Logger.root.level = Level.ALL;
  Logger.root.onRecord.listen((LogRecord rec) {
    debugPrint('${rec.level.name}: ${rec.time}: ${rec.message}');
  });
  runApp(...);
}

You can have log reporters that write to a file or to some logging server, ...