捕android程序崩溃日志

主要类别:

package com.example.callstatus;

import java.io.File;
import java.io.FileOutputStream;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.lang.Thread.UncaughtExceptionHandler;
import java.lang.reflect.Field;
import java.net.UnknownHostException;
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.telephony.TelephonyManager;
import android.text.TextUtils;
import android.util.Log;
import android.widget.Toast;

/**
 * 捕获android程序崩溃日志<br>
 * UncaughtException处理类,当程序发生Uncaught异常的时候,有该类来接管程序.
 * 
 * @author PMTOAM
 * 
 */
@SuppressLint("SimpleDateFormat")
public class CrashHandler implements UncaughtExceptionHandler
{

	public static final String TAG = CrashHandler.class.getCanonicalName();

	// 系统默认的UncaughtException处理类
	private Thread.UncaughtExceptionHandler mDefaultHandler;
	// CrashHandler实例
	private static CrashHandler INSTANCE = new CrashHandler();
	// 程序的Context对象
	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,作为日志文件名称的一部分
	private DateFormat formatter = new SimpleDateFormat("yyyyMMdd_HHmmss");

	/**
	 * 保证仅仅有一个实例
	 */
	private CrashHandler()
	{
	}

	/**
	 * 获取实例 ,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);
	}

	/**
	 * 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)
		{
			// 假设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
		{
			try
			{
				Thread.sleep(3000);
			}
			catch (InterruptedException e)
			{
				Log.e(TAG, "error : ", e);
			}

			// 退出程序
			android.os.Process.killProcess(android.os.Process.myPid());
			System.exit(1);
		}
	}

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

		// 使用Toast来显示异常信息
		new Thread()
		{
			@Override
			public void run()
			{
				Looper.prepare();
				Toast.makeText(mContext, "非常抱歉。程序出现异常。

", Toast.LENGTH_LONG) .show(); Looper.loop(); } }.start(); // 收集设备參数信息 collectDeviceInfo(mContext); // 保存日志文件 String str = saveCrashInfo2File(ex); Log.e(TAG, str); return false; } /** * 收集设备參数信息 * * @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 == null ?

"null" : pi.versionName; String versionCode = pi.versionCode + ""; infos.put("versionName", versionName); infos.put("versionCode", 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()); Log.d(TAG, field.getName() + " : " + field.get(null)); } catch (Exception e) { Log.e(TAG, "an error occured when collect crash info", e); } } } /** * 保存错误信息到文件里 * * @param ex * @return 返回文件名称称,便于将文件传送到server */ private String saveCrashInfo2File(Throwable ex) { StringBuffer sb = new StringBuffer(); for (Map.Entry<String, String> entry : infos.entrySet()) { String key = entry.getKey(); String value = entry.getValue(); sb.append("[" + key + ", " + value + "]\n"); } sb.append("\n" + getStackTraceString(ex)); try { String time = formatter.format(new Date()); TelephonyManager mTelephonyMgr = (TelephonyManager) mContext .getSystemService(Context.TELEPHONY_SERVICE); String imei = mTelephonyMgr.getDeviceId(); if (TextUtils.isEmpty(imei)) { imei = "unknownimei"; } String fileName = "CRS_" + time + "_" + imei + ".txt"; File sdDir = null; if (Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) sdDir = Environment.getExternalStorageDirectory(); File cacheDir = new File(sdDir + File.separator + "dPhoneLog"); if (!cacheDir.exists()) cacheDir.mkdir(); File filePath = new File(cacheDir + File.separator + fileName); FileOutputStream fos = new FileOutputStream(filePath); fos.write(sb.toString().getBytes()); fos.close(); return fileName; } catch (Exception e) { Log.e(TAG, "an error occured while writing file...", e); } return null; } /** * 获取捕捉到的异常的字符串 */ public static String getStackTraceString(Throwable tr) { if (tr == null) { return ""; } Throwable t = tr; while (t != null) { if (t instanceof UnknownHostException) { return ""; } t = t.getCause(); } StringWriter sw = new StringWriter(); PrintWriter pw = new PrintWriter(sw); tr.printStackTrace(pw); return sw.toString(); } }



用法:


package com.example.callstatus;

import android.app.Application;

public class MyApplication extends Application
{
	@Override
	public void onCreate()
	{
		super.onCreate();
		
		CrashHandler crashHandler = CrashHandler.getInstance();
		crashHandler.init(getApplicationContext());
	}
}


所需权限:


<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS" />


版权声明:本文博主原创文章。博客,未经同意不得转载。

posted @ 2015-10-14 11:18  hrhguanli  阅读(185)  评论(0编辑  收藏  举报