flutter 打印 print 文件信息、行数、打印信息

    var test = "testContent";
    print("test：$test");

打印结果：
I/flutter (12983): test：testContent

打印文件，行数，打印信息

打印结果：
I/flutter (13709): test：testContent
I/flutter (13709): 文件: main.dart, 行: 92, 打印信息: test：testContent

    var test = "testContent";
    print("test：$test");
    printLog("test：$test", StackTrace.current);

// 可以在utils定义log.dart
void printLog(Object message, StackTrace current) {
    
    
  MYCustomTrace programInfo = MYCustomTrace(current);
  print("文件: ${
      
      programInfo.fileName}, 行: ${
      
      programInfo.lineNumber}, 打印信息: $message");
}

class MYCustomTrace {
    
    
  final StackTrace _trace;
  String fileName = "";
  int lineNumber = 0;
  int columnNumber = 0;

  MYCustomTrace(this._trace) {
    
    
    _parseTrace();
  }

  void _parseTrace() {
    
    
    var traceString = this._trace.toString().split("\n")[0];
    var indexOfFileName = traceString.indexOf(RegExp(r'[A-Za-z_]+.dart'));
    var fileInfo = traceString.substring(indexOfFileName);
    var listOfInfos = fileInfo.split(":");
    this.fileName = listOfInfos[0];
    this.lineNumber = int.parse(listOfInfos[1]);
    var columnStr = listOfInfos[2];
    columnStr = columnStr.replaceFirst(")", "");
    this.columnNumber = int.parse(columnStr);
  }
}

相关博客：
flutter 打印日志调试小工具 - 文件信息、行数、打印信息