com.showself.utils.DLog

package com.showself.utils;

import java.io.File;
import java.io.FileWriter;
import java.io.IOException;

import android.content.Context;
import android.os.Environment;

import com.showself.ui.ShowSelfApp;

/**
* Log统一管理工具类
* @author JustMe
*
*/
public class DLog {

/**
* 开发阶段设为true
*/
public static boolean printLog = false;
private static boolean printClassLog = printLog;

public static boolean D = printLog;
public static boolean V = printLog;
public static boolean I = printLog;
public static boolean W = printLog;
public static boolean E = printLog;

public final static String FILE_DIR_NAME = "Log";
public final static String FILE_NAME = "ShowSelf.log";
public static void d(String tag, String msg) {
  if (!D || msg == null) {
   return;
  }
  android.util.Log.d(tag, msg);
}

public static void d(String tag, String msg, Throwable tr) {
  if (!D || msg == null) {
   return;
  }
  android.util.Log.d(tag, msg, tr);
}

public static void v(String tag, String msg) {
  if (!V || msg == null) {
   return;
  }
  android.util.Log.v(tag, msg);
}

public static void v(String tag, String msg, Throwable tr) {
  if (!V || msg == null) {
   return;
  }
  android.util.Log.v(tag, msg, tr);
}

public static void i(String tag, String msg) {
  if (!I || msg == null) {
   return;
  }
  android.util.Log.i(tag, msg);
}

public static void i(String msg) {
  if (!I || msg == null) {
   return;
  }
  android.util.Log.i(getStackTraceName(), msg);
}

public static void i(String tag, String msg, Throwable tr) {
  if (!I || msg == null) {
   return;
  }
  android.util.Log.i(tag, msg, tr);
}

public static void w(String tag, String msg) {
  if (!W || msg == null) {
   return;
  }
  android.util.Log.w(tag, msg);
}

public static void w(String tag, Throwable tr) {
  if (!W) {
   return;
  }
  android.util.Log.w(tag, tr);
}

public static void w(String tag, String msg, Throwable tr) {
  if (!W) {
   return;
  }
  android.util.Log.w(tag, msg, tr);
}

public static void e(String tag, String msg) {
  if (!E || msg == null) {
   return;
  }
  android.util.Log.e(tag, msg);
}

public static void e(String tag, String msg, Throwable tr) {
  if (!E) {
   return;
  }
  android.util.Log.e(tag, msg, tr);
}
public static void e(Throwable tr) {
  if (!E) {
   return;
  }
  tr.printStackTrace();
}

public static String getStackTraceName(){
  if(!printClassLog){
   return "";
  }
   StackTraceElement[] stackTrace = Thread.currentThread().getStackTrace();
   String stackTraceName = null;
  if(stackTrace.length>4){
   stackTraceName = stackTrace[4].getClassName()+ stackTrace[4].getMethodName();
    }
  return stackTraceName;
}

/**
* 将日志写到程序的文件里面
*/
public static void writeToFile(String msg) {
  try {
   File fileDir = ShowSelfApp.getInstance().getApplicationContext().getDir(FILE_DIR_NAME, Context.MODE_PRIVATE);
   String filePath = fileDir.getAbsolutePath() + File.separator + FILE_NAME;
   StreamUtil.saveStringToFile(msg, filePath);
  } catch (IOException e) {
   i("", "书写日志发生错误：" + e.toString());
  }
}

/**
* 将日志写到SD卡里面
*/
public static void writeToSDCard(String msg) {
  writeToSDCard(null, msg);
}

/**
* 将日志写到SD卡里面，同时输出log日志
*/
public static void writeToSDCard(String tag, String msg) {
     if (printLog && msg != null) {
         if (tag != null) {
                DLog.i(tag, msg);
            }

         FileWriter fw = null;
         try {
             File file = new File(Environment.getExternalStorageDirectory() + "/" + FILE_NAME);
             if (!file.exists()) {
                    file.createNewFile();
                } else if (file.length() > 10 * 1024) {
                    file.delete();
                    file.createNewFile();
                }
             fw = new FileWriter(file, true);
             fw.write(TimeUtil.getTimeStamp() + " : " + msg + "\r\n");
         } catch (Exception e) {
             i("", "书写日志发生错误：" + e.toString());
         } finally {
             try {
                 if (fw != null) {
                     fw.close();
                 }
             } catch (IOException e) {
             }
         }
        }
}

}

http://r.virscan.org/language/zh-cn/report/ec6ba3b02c6feb533000f2ffc64279f3

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