public static File saveFile(String logData){
  File dir=getLogDir();
  if (dir == null) {
    return null;
  }
  FileWriter fileWriter=null;
  File output=null;
  try {
    output=new File(dir,getLogFileName());
    fileWriter=new FileWriter(output,true);
    fileWriter.write(logData);
  }
 catch (  IOException e) {
    e.printStackTrace();
  }
 finally {
    if (fileWriter != null) {
      try {
        fileWriter.close();
      }
 catch (      IOException e) {
        e.printStackTrace();
      }
    }
  }
  return output;
}

public static File saveFile ( String logData ) { File dir = getLogDir ( ) ; if ( dir == null ) { return null ; } FileWriter fileWriter = null ; File output = null ; try { output = new File ( dir , getLogFileName ( ) ) ; fileWriter = new FileWriter ( output , true ) ; fileWriter . write ( logData ) ; } catch ( IOException e ) { e . printStackTrace ( ) ; } finally { if ( fileWriter != null ) { try { fileWriter . close ( ) ; } catch ( IOException e ) { e . printStackTrace ( ) ; } } } return output ; }
save the current logs to disk .
