Android 全局错误管理

package com.wlwl.yiyuan;

import java.io.File;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.io.Writer;
import java.lang.Thread.UncaughtExceptionHandler;
import java.lang.reflect.Field;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;

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.os.SystemClock;
import android.util.Log;
import android.widget.Toast;

import com.wlwl.common.Config;

import com.wlwl.tools.FileX;
import com.wlwl.tools.URLX;
import com.wlwl.tools.UtilX;

@SuppressLint("SimpleDateFormat")
public class CrashHandler implements UncaughtExceptionHandler {  

   public static String TAG = "MyCrash";
   // 系统默认的UncaughtException处理类
   private Thread.UncaughtExceptionHandler mDefaultHandler;  

   private static CrashHandler instance = new CrashHandler();
   private Context mContext;  

   // 用来存储设备信息和异常信息
   private Map<String, String> infos = new HashMap<String, String>();  

   // 用于格式化日期,作为日志文件名的一部分
   private DateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");  

   /** 保证只有一个CrashHandler实例 */
   private CrashHandler() {
   }  

   /** 获取CrashHandler实例 ,单例模式 */
   public static CrashHandler getInstance() {
       return instance;
   }  

   /**
    * 初始化
    *
    * @param context
    */
   public void init(Context context) {
       mContext = context;
       // 获取系统默认的UncaughtException处理器
       mDefaultHandler = Thread.getDefaultUncaughtExceptionHandler();
       // 设置该CrashHandler为程序的默认处理器
       Thread.setDefaultUncaughtExceptionHandler(this);
       autoClear(5);
   }  

   /**
    * 当UncaughtException发生时会转入该函数来处理
    */
   @Override
   public void uncaughtException(Thread thread, Throwable ex) {
       if (!handleException(ex) && mDefaultHandler != null) {
           // 如果用户没有处理则让系统默认的异常处理器来处理
           mDefaultHandler.uncaughtException(thread, ex);
       } else {
           SystemClock.sleep(3000);
           // 退出程序
           android.os.Process.killProcess(android.os.Process.myPid());
           System.exit(1);
       }
   }  

   /**
    * 自定义错误处理,收集错误信息 发送错误报告等操作均在此完成.
    *
    * @param ex
    * @return true:如果处理了该异常信息; 否则返回false.
    */
   private boolean handleException(Throwable ex) {
       if (ex == null)
           return false;  

       try {
           // 使用Toast来显示异常信息
           new Thread() {  

               @Override
               public void run() {
                   Looper.prepare();
                   Toast.makeText(mContext, "很抱歉,程序出现异常,即将重启.",
                           Toast.LENGTH_LONG).show();
                   Looper.loop();
               }
           }.start();
           // 收集设备参数信息
           collectDeviceInfo(mContext);
           // 保存日志文件
           saveCrashInfoFile(ex);
           SystemClock.sleep(3000);
       } catch (Exception e) {
           e.printStackTrace();
       }  

       return true;
   }  

   /**
    * 收集设备参数信息
    *
    * @param ctx
    */
   public void collectDeviceInfo(Context ctx) {
       try {
           PackageManager pm = ctx.getPackageManager();
           PackageInfo pi = pm.getPackageInfo(ctx.getPackageName(),
                   PackageManager.GET_ACTIVITIES);
           if (pi != null) {
               String versionName = pi.versionName + "";
               String versionCode = pi.versionCode + "";
               infos.put("版本名称", versionName);
               infos.put("版本号", versionCode);
           }
       } catch (NameNotFoundException e) {
           Log.e(TAG, "an error occured when collect package info", e);
       }
       Field[] fields = Build.class.getDeclaredFields();
       for (Field field : fields) {
           try {
               field.setAccessible(true);
               infos.put(field.getName(), field.get(null).toString());
           } catch (Exception e) {
               Log.e(TAG, "an error occured when collect crash info", e);
           }
       }
   }  

   /**
    * 保存错误信息到文件中
    * @param ex
    * @return 返回文件名称,便于将文件传送到服务器
    * @throws Exception
    */
   private String saveCrashInfoFile(Throwable ex) throws Exception {
       StringBuffer sb = new StringBuffer();
       try {
           SimpleDateFormat sDateFormat = new SimpleDateFormat(
                   "yyyy-MM-dd HH:mm:ss");
           String date = sDateFormat.format(new java.util.Date());
           sb.append("\r\n" + date + "\n");
           for (Map.Entry<String, String> entry : infos.entrySet()) {
               String key = entry.getKey();
               String value = entry.getValue();
               sb.append(key + "=" + value + "\n");
           }  

           Writer writer = new StringWriter();
           PrintWriter printWriter = new PrintWriter(writer);
           ex.printStackTrace(printWriter);
           Throwable cause = ex.getCause();
           while (cause != null) {
               cause.printStackTrace(printWriter);
               cause = cause.getCause();
           }
           printWriter.flush();
           printWriter.close();
           String result = writer.toString();
           sb.append(result);  

           String fileName = writeFile(sb.toString());
           return fileName;
       } catch (Exception e) {
           Log.e(TAG, "an error occured while writing file...", e);
           sb.append("an error occured while writing file...\r\n");
           writeFile(sb.toString());
       }
       return null;
   }  

   private String writeFile(String sb) throws Exception {
       String time = formatter.format(new Date());
       String fileName = "crash-" + time + "";  

       FileX.Write_Log(sb.toString(),true,fileName);  //保存日志      

       int verCode = UtilX.getVerCode(mContext);
       String verName = UtilX.getVerName(mContext);

		String QueryStringName = "?action=seterror";

		Map<String,String> params = new HashMap<String,String>();
		params.put("error", sb.toString());
		params.put("verCode", verCode+"");
		params.put("verName", verName.toString());

		String Url = Config.URL_SetPhone + QueryStringName;
		Log.i("SetError URL ", Url);
		String aaa = URLX.submitPostData(Url, params, "utf-8");
		Log.i("SetError", aaa);

       return fileName;
   }  

   public static String getGlobalpath() {
       return Environment.getExternalStorageDirectory().getAbsolutePath()
               + File.separator + "crash" + File.separator;
   }  

   public static void setTag(String tag) {
       TAG = tag;
   }  

   /**
    * 文件删除
    * @param day 文件保存天数
    */
   public void autoClear(final int autoClearDay) {
//       FileUtil.delete(getGlobalpath(), new FilenameFilter() {
//
//           @Override
//           public boolean accept(File file, String filename) {
//               String s = FileUtil.getFileNameWithoutExtension(filename);
//               int day = autoClearDay < 0 ? autoClearDay : -1 * autoClearDay;
//               String date = "crash-" + DateUtil.getOtherDay(day);
//               return date.compareTo(s) >= 0;
//           }
//       });  

   }  

}

　　

package com.wlwl.yiyuan;

import com.baidu.mapapi.SDKInitializer;

import com.wlwl.tools.LocationService;

import cn.jpush.android.api.JPushInterface;
import android.app.Application;
import android.app.Service;
import android.os.Vibrator;
import android.util.Log;

/**
 * For developer startup JPush SDK
 *
 * 一般建议在自定义 Application 类里初始化。也可以在主 Activity 里。
 */
public class MyApplication extends Application {

	 private static final String TAG = "JPush";
	 public LocationService locationService;
	    public Vibrator mVibrator;
	    @Override
	    public void onCreate() {    	     

	         super.onCreate();

	         try {
	        	  JPushInterface.setDebugMode(true); 	// 设置开启日志,发布时请关闭日志
	 	         JPushInterface.init(this);     		// 初始化 JPush

	 	         locationService = new LocationService(getApplicationContext());
	 	         mVibrator =(Vibrator)getApplicationContext().getSystemService(Service.VIBRATOR_SERVICE);

	 	        CrashHandler.getInstance().init(this);   //全局错误捕捉  

			} catch (Exception e) {
				// TODO: handle exception
			}

	    }
}