LogListenerScope class

A stateful widget to listen redirected log events.

This widget will start listening log events when initState and activate are called, and stop when deactivate is called.

logEmitter: Log event emitter。

example:

final logEmitter = ValueNotifier<LogInfo?>(null);

void main() {
  runZoned(
    () => runApp(MyApp()),
    zoneSpecification: ZoneSpecification(
      print: (Zone self, ZoneDelegate parent, Zone zone, String line) {
        parent.print(zone, "$line");
        // Intercept `print` function and redirect log.
        logEmitter.value = LogInfo(false, line);
      },
     handleUncaughtError: (Zone self, ZoneDelegate parent, Zone zone,
          Object error, StackTrace stackTrace) {
        parent.print(zone, '${error.toString()} $stackTrace');
        // Redirect error log event when error.
        logEmitter.value = LogInfo(true, error.toString());
      },
    ),
  );

  var onError = FlutterError.onError;
  FlutterError.onError = (FlutterErrorDetails details) {
    onError?.call(details);
    // Redirect error log event when error.
    logEmitter.value = LogInfo(true, details.toString());
  };
}

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