androidcarsh

package com.oval.cft;

import java.io.File;
import java.io.FileOutputStream;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.lang.Thread.UncaughtExceptionHandler;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import java.util.TimeZone;

import com.oval.cft.constant.OvalConstant;

import android.annotation.SuppressLint;
import android.content.Context;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.os.Build;
import android.os.Environment;
import android.os.Looper;
import android.util.Log;
import android.widget.Toast;

/**
 * 自定义系统的Crash捕捉类，用Toast替换系统的对话框
 * 将软件版本信息，设备信息，出错信息保存在SD卡中，可以上传到服务器中
 * @author Jackyin
 *
 */
public class CustomCrashHandler implements UncaughtExceptionHandler {
   private static final String TAG = "Activity";
   private Context mContext;
   @SuppressWarnings("unused")
   private static final String SDCARD_ROOT = Environment.getExternalStorageDirectory().toString();
   private static CustomCrashHandler mInstance = new CustomCrashHandler();

   private CustomCrashHandler() {
   }

   /**
    * 单例模式，保证只有一个CustomCrashHandler实例存在
    * @return
    */
   public static CustomCrashHandler getInstance() {
      return mInstance;
   }

   /**
    * 异常发生时，系统回调的函数，我们在这里处理一些操作
    */
   @Override
   public void uncaughtException(Thread thread, Throwable ex) {
      // 将一些信息保存到SDcard中
      savaInfoToSD(mContext, ex);
      // 提示用户程序即将退出
      showToast(mContext, "很抱歉，程序遭遇异常，即将退出！");
      try {
         Thread.sleep(2000);
      } catch (InterruptedException e) {
         e.printStackTrace();
      }
      // android.os.Process.killProcess(android.os.Process.myPid());
      // System.exit(1);
      ExitAppUtils.getInstance().exit();

   }

   /**
    * 为我们的应用程序设置自定义Crash处理
    */
   public void setCustomCrashHanler(Context context) {
      mContext = context;
      Thread.setDefaultUncaughtExceptionHandler(this);
   }

   /**
    * 显示提示信息，需要在线程中显示Toast
    * @param context
    * @param msg
    */
   private void showToast(final Context context, final String msg) {
      new Thread(new Runnable() {
         @Override
         public void run() {
            Looper.prepare();
            Toast.makeText(context, msg, Toast.LENGTH_LONG).show();
            Looper.loop();
         }
      }).start();
   }

   /**
    * 获取一些简单的信息,软件版本，手机版本，型号等信息存放在HashMap中
    * @param context
    * @return
    */
   private HashMap<String, String> obtainSimpleInfo(Context context) {
      HashMap<String, String> map = new HashMap<String, String>();
      PackageManager mPackageManager = context.getPackageManager();
      PackageInfo mPackageInfo = null;
      try {
         mPackageInfo = mPackageManager.getPackageInfo(context.getPackageName(), PackageManager.GET_ACTIVITIES);
      } catch (NameNotFoundException e) {
         e.printStackTrace();
      }

      map.put("versionName", mPackageInfo.versionName);
      map.put("versionCode", "" + mPackageInfo.versionCode);

      map.put("MODEL", "" + Build.MODEL);
      map.put("SDK_INT", "" + Build.VERSION.SDK_INT);
      map.put("PRODUCT", "" + Build.PRODUCT);

      return map;
   }

   /**
    * 获取系统未捕捉的错误信息
    * @param throwable
    * @return
    */
   private String obtainExceptionInfo(Throwable throwable) {
      StringWriter mStringWriter = new StringWriter();
      PrintWriter mPrintWriter = new PrintWriter(mStringWriter);
      throwable.printStackTrace(mPrintWriter);
      mPrintWriter.close();

      Log.e(TAG, mStringWriter.toString());
      return mStringWriter.toString();
   }

   /**
    * 保存获取的 软件信息，设备信息和出错信息保存在SDcard中
    * @param context
    * @param ex
    * @return
    */
   private String savaInfoToSD(Context context, Throwable ex) {
      String fileName = null;
      StringBuffer sb = new StringBuffer();

      for (Map.Entry<String, String> entry : obtainSimpleInfo(context).entrySet()) {
         String key = entry.getKey();
         String value = entry.getValue();
         sb.append(key).append(" = ").append(value).append("
");
      }

      sb.append(obtainExceptionInfo(ex));

      if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
         File dir = new File(OvalConstant.APP_EXCEPTION_DIRECTORY);
         if (!dir.exists()) {
            dir.mkdir();
         }

         try {
            fileName = dir.toString() + File.separator + paserTime(System.currentTimeMillis()) + ".log";
            FileOutputStream fos = new FileOutputStream(fileName);
            fos.write(sb.toString().getBytes());
            fos.flush();
            fos.close();
         } catch (Exception e) {
            e.printStackTrace();
         }
      }

      return fileName;

   }

   /**
    * 将毫秒数转换成yyyy-MM-dd-HH-mm-ss的格式
    * @param milliseconds
    * @return
    */
   @SuppressLint("SimpleDateFormat")
   private String paserTime(long milliseconds) {
      System.setProperty("user.timezone", "Asia/Shanghai");
      TimeZone tz = TimeZone.getTimeZone("Asia/Shanghai");
      TimeZone.setDefault(tz);
      SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss");
      String times = format.format(new Date(milliseconds));
      return times;
   }
}

@TargetApi(Build.VERSION_CODES.GINGERBREAD)
@SuppressWarnings("unused")
@Override
public void onCreate() {
   if (OvalConstant.Config.DEVELOPER_MODE && Build.VERSION.SDK_INT >= Build.VERSION_CODES.GINGERBREAD) {
      StrictMode.setThreadPolicy(new StrictMode.ThreadPolicy.Builder().detectAll().penaltyDialog().build());
      StrictMode.setVmPolicy(new StrictMode.VmPolicy.Builder().detectAll().penaltyDeath().build());
   }
   super.onCreate();
   // 初始化应用异常处理
   initCustomCrashHandler();
}
找到一个Android的异常处理的办法，经过测试可以使用，加到项目中。