betterPrint function

void betterPrint(Object? message, [ int maxLine = 0 ])

A better way to show print message

maxLine control how many line to show after message.

Implementation

void betterPrint(Object? message, [int maxLine = 0]) {
  final msg = message.toString();
  final stackTrace = StackTrace.current;
  Iterable<String> lines = stackTrace.toString().trimRight().split('\n');
  // removing [betterPrint] from stack
  String line = lines.toList()[1];
  final i = line.indexOf('package:');
  if (maxLine > 0) {
    lines = lines.take(maxLine + (i < 0 ? 2 : 1) + 1);
    final ls = lines.toList()..removeRange(0, i < 0 ? 2 : 1);
    final l = ls.toList().map((e) {
      final x = e.split(' ');
      final i = int.parse(x.first.substring(1));
      x.replaceRange(0, 1, ['#${i - 1}']);
      return x.join(' ');
    }).toList();
    debugPrint(
      FlutterError.defaultStackFilter(l)
          .join('\n')
          .replaceAll('packages/', 'package:')
          .replaceRange(0, 2, msg),
    );
  } else {
    final list = line.split(" ");
    debugPrint('$msg ${list.last}');
  }
}