学步园

使用队列记录10步操作，如果异常，把操作写入文件。

public static void writeLogtoFile(String mylogtype, String tag, String text)
    {
                // 新建或打开日志文件  
                //        String MYLOG_PATH_SDCARD_DIR = "/sdcard/";
                SimpleDateFormat logfile = new SimpleDateFormat("yyyy-MM-dd");
                String MYLOGFILEName = "Log.txt";
                SimpleDateFormat myLogSdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");// 日志的输出格式 

               
                Date nowtime = new Date();
                String needWriteFiel = logfile.format(nowtime);
                String needWriteMessage = myLogSdf.format(nowtime) + "    " + mylogtype + "    " + tag + "    " + text;
                File file = new File(LOCAL_FILE_PATH, needWriteFiel + MYLOGFILEName);
                Log.e(tag, text);
               
                try
                {
                    FileWriter filerWriter = new FileWriter(file, true);//后面这个参数代表是不是要接上文件中原来的数据，不进行覆盖  

                    BufferedWriter bufWriter = new BufferedWriter(filerWriter);
                    bufWriter.write(needWriteMessage);
                    bufWriter.newLine();
                    bufWriter.close();
                    filerWriter.close();
                }
                catch (IOException e)
                {
                    // TODO Auto-generated catch block  
                    e.printStackTrace();
                    Log.e("writeLogtoFile", "write error!" );
                }
    }