android 线程方式打印log到sd卡

package com.foundreams.profs_chinese.payutil;
import java.text.SimpleDateFormat;
import java.util.Date;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;

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

/**

log日志统计保存
@author way
*/

public class Loger {

private static Loger INSTANCE = null;  private static String PATH_LOGCAT;  private LogDumper mLogDumper = null;  private int mPId;  /**  *   * 初始化目录  *   * */  public void init(Context context) {      if (Environment.getExternalStorageState().equals(              Environment.MEDIA_MOUNTED)) {// 优先保存到SD卡中           PATH_LOGCAT = Environment.getExternalStorageDirectory()                  .getAbsolutePath() + File.separator + "LOG";      } else {// 如果SD卡不存在，就保存到本应用的目录下           PATH_LOGCAT = context.getFilesDir().getAbsolutePath()                  + File.separator + "LOG";      }      File file = new File(PATH_LOGCAT);      if (!file.exists()) {          file.mkdirs();      }  }  public static Loger getInstance(Context context) {      if (INSTANCE == null) {          INSTANCE = new Loger(context);      }      return INSTANCE;  }  private Loger(Context context) {      init(context);      mPId = android.os.Process.myPid();  }  public void start() {      if (mLogDumper == null)          mLogDumper = new LogDumper(String.valueOf(mPId), PATH_LOGCAT);      mLogDumper.start();  }  public void stop() {      if (mLogDumper != null) {          mLogDumper.stopLogs();          mLogDumper = null;      }  }  private class LogDumper extends Thread {      private Process logcatProc;      private BufferedReader mReader = null;      private boolean mRunning = true;      String cmds = null;      private String mPID;      private FileOutputStream out = null;      public LogDumper(String pid, String dir) {          mPID = pid;          try {              out = new FileOutputStream(new File(dir, "GPS-"+ MyDate.getFileName() + ".log"));          } catch (FileNotFoundException e) {              // TODO Auto-generated catch block               e.printStackTrace();          }          /**          *           * 日志等级：*:v , *:d , *:w , *:e , *:f , *:s          *           * 显示当前mPID程序的 E和W等级的日志.          *           * */          // cmds = "logcat *:e *:w | grep \"(" + mPID + ")\"";           // cmds = "logcat  | grep \"(" + mPID + ")\"";//打印所有日志信息           // cmds = "logcat -s way";//打印标签过滤信息           cmds = "logcat  | grep \"(" + mPID + ")\"";    }      public void stopLogs() {          mRunning = false;      }      @Override      public void run() {          try {              logcatProc = Runtime.getRuntime().exec(cmds);              mReader = new BufferedReader(new InputStreamReader(                      logcatProc.getInputStream()), 1024);              String line = null;              while (mRunning && (line = mReader.readLine()) != null) {                if (!mRunning) {                    break;                 }                if (line.length() == 0) {                      continue;                  }                  if (out != null && line.contains(mPID)) {                      out.write((MyDate.getDateEN() + "  " + line + "\n")  .getBytes());

// out.flush();

                }              }          } catch (IOException e) {            e.printStackTrace();          } finally {            if (logcatProc != null) {                  logcatProc.destroy();                  logcatProc = null;              }            if (mReader != null) {                try {                    mReader.close();                      mReader = null;                  } catch (IOException e) {                      e.printStackTrace();                  }              }            if (out != null) {                  try {                     out.flush();                    out.close();                  } catch (IOException e) {                      e.printStackTrace();                  }                  out = null;              }          }      }  }

public static class MyDate {

public static String getFileName() {      SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");      String date = format.format(new Date(System.currentTimeMillis()));      return date;// 2012年10月03日 23:41:31   }  public static String getDateEN() {      SimpleDateFormat format1 = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");      String date1 = format1.format(new Date(System.currentTimeMillis()));      return date1;// 2012-10-03 23:41:31   }

}
}

更多相关文章

随机推荐