android 捕捉异常

代码如下：

package com.example.crashhandler;import java.io.File;import java.io.IOException;import java.io.PrintWriter;import java.io.RandomAccessFile;import java.io.StringWriter;import java.io.Writer;import java.lang.Thread.UncaughtExceptionHandler;import java.lang.reflect.Field;import android.annotation.SuppressLint;import android.os.Build;import android.os.Environment;/** * 异常管理器 * @author Administrator * */public class ICrashMgr {private static ICrashMgr ins=new ICrashMgr();private ICrashMgr(){};public static ICrashMgr getInstance(){return ins;}public void init(){mDefaultHandler=Thread.getDefaultUncaughtExceptionHandler();//获取系统默认的UncaughtException处理器Thread.setDefaultUncaughtExceptionHandler(mICrashHandler);//重新设置该CrashHandler为程序的默认处理器 }private UncaughtExceptionHandler mDefaultHandler;private ICrashHandler mICrashHandler=new ICrashHandler();private static class ICrashHandler implements UncaughtExceptionHandler{private final String EX_LOG_PATH=Environment.getExternalStorageDirectory().getPath()+"/.boyaa/.push/.log/exlog_%s.txt";@Overridepublic void uncaughtException(Thread thread, Throwable ex) {boolean isHandle=handle(thread,ex);if(!isHandle&&null!=ICrashMgr.getInstance().mDefaultHandler){ICrashMgr.getInstance().mDefaultHandler.uncaughtException(thread, ex);}else{try {                  Thread.sleep(3000);              } catch (InterruptedException e) {                 e.printStackTrace();             }  android.os.Process.killProcess(android.os.Process.myPid()); }}/** * 保存Log文件，需要包括时间，地点(哪台手机)，事件 * @param thread * @param ex * @return */private boolean handle(Thread thread, final Throwable ex){if(null==ex){return false;}StringBuilder sb=new StringBuilder();sb.append("time:").append(getFormatTime(System.currentTimeMillis(),"yyyy-MM-dd HH:mm:ss")).append("\r\n");//时间sb.append("phone:").append(getMobileInfo()).append("\r\n");//地点sb.append("event:").append(getCrashInfo(ex)).append("\r\n").append("\r\n");//事件write(sb.toString());return true;}/** * 获取系统时间 * @param time * @param pattern * @return */@SuppressLint("SimpleDateFormat")public String getFormatTime(long time,String pattern){java.text.SimpleDateFormat format = new java.text.SimpleDateFormat(pattern);java.util.Date date = new java.util.Date(time);return format.format(date);} /**      * 获取手机的硬件信息       * @return      */      private String getMobileInfo()     {          StringBuffer sb = new StringBuffer();          //通过反射获取系统的硬件信息           try {                Field[] fields = Build.class.getDeclaredFields();              for(Field field: fields)            {                  //暴力反射 ,获取私有的信息                   field.setAccessible(true);                  String name = field.getName();                  String value = field.get(null).toString();                  sb.append(name+"="+value);                  sb.append("&");              }          } catch (Exception e) {              e.printStackTrace();          }          return sb.toString();      }        /**      * 获取错误的信息       * @param arg1      * @return      */      private String getCrashInfo(Throwable arg1)     {          Writer writer = new StringWriter();          PrintWriter pw = new PrintWriter(writer);          arg1.printStackTrace(pw);          pw.close();          String error= writer.toString();          return error;      }        public boolean write(String log){byte[] data=log.toString().getBytes();String fileName=String.format(EX_LOG_PATH, getFormatTime(System.currentTimeMillis(),"yyyy-MM-dd"));return appendFile(fileName,data, 0, data.length);}private boolean appendFile(String filename,byte[]data,int datapos,int datalength){RandomAccessFile rf=null;try {createFile(filename);rf= new RandomAccessFile(filename, "rw");rf.seek(rf.length());rf.write(data, datapos, datalength);} catch (Exception e) {e.printStackTrace();}finally{if(rf!=null){try {rf.close();} catch (IOException e) {e.printStackTrace();}rf=null;}}return true;}private boolean createFile(String filePath){try{File file = new File(filePath);if (!file.exists()){if (!file.getParentFile().exists()){file.getParentFile().mkdirs();}return file.createNewFile();}} catch (IOException e){e.printStackTrace();}return true;}}}

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