Android崩溃异常捕获方法

import java.io.File;import java.io.FileOutputStream;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.Locale;import java.util.Map;import java.util.Map.Entry;import java.util.regex.Matcher;import java.util.regex.Pattern;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;/*** UncaughtException处理类,当程序发生Uncaught异常的时候,有该类来接管程序,并记录发送错误报告.* * @author user* */@SuppressLint("SdCardPath")public class CrashHandler implements UncaughtExceptionHandler {public static final String TAG = "TEST";// CrashHandler 实例private static CrashHandler INSTANCE = new CrashHandler();// 程序的 Context 对象private Context mContext;// 系统默认的 UncaughtException 处理类private Thread.UncaughtExceptionHandler mDefaultHandler;// 用来存储设备信息和异常信息private Map<String, String> infos = new HashMap<String, String>();// 用来显示Toast中的信息private static String error = "程序错误，额，不对，我应该说，服务器正在维护中，请稍后再试";private static final Map<String, String> regexMap = 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-HH-mm-ss",Locale.CHINA);/** 保证只有一个 CrashHandler 实例 */private CrashHandler() {//}/** 获取 CrashHandler 实例 ,单例模式 */public static CrashHandler getInstance() {initMap();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);Log.d("TEST", "Crash:init");}/*** 当 UncaughtException 发生时会转入该函数来处理*/@Overridepublic 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);Log.d("TEST", "defalut");} else {try {Thread.sleep();} catch (InterruptedException e) {Log.e(TAG, "error : ", e);}// 退出程序android.os.Process.killProcess(android.os.Process.myPid());// mDefaultHandler.uncaughtException(thread, ex);System.exit();}}/*** 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;}// 收集设备参数信息// collectDeviceInfo(mContext);// 保存日志文件saveCrashInfoFile(ex);// 使用 Toast 来显示异常信息new Thread() {@Overridepublic void run() {Looper.prepare();Toast.makeText(mContext, error, Toast.LENGTH_LONG).show();Looper.loop();}}.start();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 == 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中 ** * @param ex* @return 返回文件名称,便于将文件传送到服务器*/private String saveCrashInfoFile(Throwable ex) {StringBuffer sb = getTraceInfo(ex);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.close();String result = writer.toString();sb.append(result);try {long timestamp = System.currentTimeMillis();String time = formatter.format(new Date());String fileName = "crash-" + time + "-" + timestamp + ".log";if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {String path = Environment.getExternalStorageDirectory()+ "/crash/";File dir = new File(path);if (!dir.exists()) {dir.mkdirs();}FileOutputStream fos = new FileOutputStream(path + fileName);fos.write(sb.toString().getBytes());fos.close();}return fileName;} catch (Exception e) {Log.e(TAG, "an error occured while writing file...", e);}return null;}/*** 整理异常信息* @param e* @return*/public static StringBuffer getTraceInfo(Throwable e) {StringBuffer sb = new StringBuffer();Throwable ex = e.getCause() == null ? e : e.getCause();StackTraceElement[] stacks = ex.getStackTrace();for (int i = ; i < stacks.length; i++) {if (i == ) {setError(ex.toString());}sb.append("class: ").append(stacks[i].getClassName()).append("; method: ").append(stacks[i].getMethodName()).append("; line: ").append(stacks[i].getLineNumber()).append("; Exception: ").append(ex.toString() + "/n");}Log.d(TAG, sb.toString());return sb;}/*** 设置错误的提示语* @param e*/public static void setError(String e) {Pattern pattern;Matcher matcher;for (Entry<String, String> m : regexMap.entrySet()) {Log.d(TAG, e+"key:" + m.getKey() + "; value:" + m.getValue());pattern = Pattern.compile(m.getKey());matcher = pattern.matcher(e);if(matcher.matches()){error = m.getValue();break;}}}/*** 初始化错误的提示语*/private static void initMap() {// Java.lang.NullPointerException// java.lang.ClassNotFoundException// java.lang.ArithmeticException// java.lang.ArrayIndexOutOfBoundsException// java.lang.IllegalArgumentException// java.lang.IllegalAccessException// SecturityException// NumberFormatException// OutOfMemoryError // StackOverflowError // RuntimeException regexMap.put(".*NullPointerException.*", "嘿，无中生有~Boom!");regexMap.put(".*ClassNotFoundException.*", "你确定你能找得到它？");regexMap.put(".*ArithmeticException.*", "我猜你的数学是体育老师教的，对吧？");regexMap.put(".*ArrayIndexOutOfBoundsException.*", "恩，无下限=无节操，请不要跟我搭话");regexMap.put(".*IllegalArgumentException.*", "你的出生就是一场错误。");regexMap.put(".*IllegalAccessException.*", "很遗憾，你的信用卡账号被冻结了，无权支付");regexMap.put(".*SecturityException.*", "死神马上降临");regexMap.put(".*NumberFormatException.*", "想要改变一下自己形象？去泰国吧，包你满意");regexMap.put(".*OutOfMemoryError.*", "或许你该减减肥了");regexMap.put(".*StackOverflowError.*", "啊，啊，憋不住了！");regexMap.put(".*RuntimeException.*", "你的人生走错了方向，重来吧");}}

import android.app.Application;public class CrashApplication extends Application {@Overridepublic void onCreate() {super.onCreate();CrashHandler crashHandler = CrashHandler.getInstance();crashHandler.init(getApplicationContext());}} 

<application android:name=".CrashApplication" ... /> 

<!--uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /--><uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />